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Series CN 79000
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INSTRUCTIONS FOR THE CN79000 SERIES
1/32 DIN DUAL ZONE MICROPROCESSOR BASED
TEMPERATURE/PROCESS CONTROL
OMEGA Engineering
One Omega Drive
Stamford, Connecticut 06907-0047
P.O. Box 4047
Telephone: 800/848-4286; 203/359-1660
Fax: 203/359-7700
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Contents
INSTALLATION ....................................................................................... 3
WIRING................................................................................................... 5
Wiring for Optional Inputs and Outputs................................................... 6
Wiring for 4 to 20mA Transmitter inputs ................................................. 7
FRONT PANEL KEY FUNCTIONS ......................................................... 8
NOTATION CONVENTIONS FOR THE MENUS .................................. 10
THE HOME DISPLAY ........................................................................... 10
ALARM TYPE AND ACTION ................................................................ 11
OPERATION OF SELF TUNE® FUNCTION ......................................... 12
Theory of Operation .............................................................................. 12
Program Setup and Operation............................................................... 13
OPERATION AND PROGRAMMING OF OPTIONS ............................. 13
Option C4, Serial Communication. ...................................................... 13
FACTORY DEFAULT PROCEDURE .................................................... 14
MENU SELECTIONS ........................................................................... 14
PRIMARY MENU .................................................................................. 14
SECONDARY MENU ............................................................................ 15
SECURE MENU .................................................................................... 25
SPECIFICATIONS ................................................................................ 35
DIAGNOSTIC ERROR MESSAGES ..................................................... 37
DIAGNOSTIC ERROR MESSAGES ..................................................... 38
DIMENSIONS ....................................................................................... 40
Page 2 of 40
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MODEL IDENTIFICATION
CN790
Output
2 = Switched
Options
C4 = RS485
Voltage 5VDC LV = Low Voltage
3 = Relay
Output A
2 = Switched Voltage 5 VDC
3 = Relay
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Prepare the panel by cutting and deburring the required opening(s).
25.4
(1.00)
20.5
45 + 0.6
(0.807)
(1.772 + 0.02)
22.2 + 0.3
(0.874 + 0.012)
From the front of the panel, slide the housing through the cutout. The
housing gasket should be flat against the housing flange before
installing.
Panel
Collar
Gasket
From the rear of the panel slide the mounting collar over the housing.
Hold the housing with one hand and using the other hand, push the
collar evenly against the panel until the spring loops are slightly
compressed. The ratchets will hold the mounting collar and housing
in place. To remove, gently lift the ratchets and slide a piece of
heavy paper or mylar sheet under each ratchet (a business card
works well). Slide the collar off of the housing.
Page 4 of 40
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Control wiring is as shown.
The wiring terminals for the C N 79000 are compression type. To open
the wiring terminal, turn the screw for that terminal counterclock-
wise. Slide the wire into the terminal space. While holding the wire
in place, turn the screw clockwise to tighten. Maximum torque is
0.424 N·m(3.75 in. lb.). Do not overtighten. The wire should be held
snugly in place.
Wiring for Optional Inputs and Outputs
Wirepowerandoutputsasshown. Wiringforoptionsisshownbelow. Allwiring
shown below is Class 2. Shielded twisted pair is required for Option C4.
Option 992:
Terminal 5 is line A (-).
Terminal 6 is line B (+).
Last control in chain must have 120 ohm ± 1%
resistor across 5 and 6.
Option 9502:
Connect 12 to 24 Volt ac or
dc power to terminals 11 and
12. No polarity.
Note: Industry standard designation for
11
12
5
6
RS-485 lines is A and B. Some equip-
ment manufacturers use a non-standard designation of plus and minus. The
association of A to minus and B to plus is based on a sample of devices marked as
plus and minus and is not intended to represent ALL such labelled devices. Final
responsibility for correct identification of leads and terminals rests with the user/
installer and the manufacturer of the other device(s) installed in the system.
Page 6 of 40
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Wiring for 4 to 20mA Transmitter inputs
WARNING: Theinputsoftheinstrumentarenotisolated
from each other. The input sources must be isolated
from each other. Process inputs may not share a
common external ground.
FAILURE TO OBSERVE THIS WARNING MAY CAUSE
DANGEROUS OR LETHAL VOLTAGES TO BE PRESENT
IN THE INSTRUMENT WHICH MAY CAUSE SERIOUS
INJURY OR DEATH.
Wire power and outputs as shown above. Two-wire transmitters wire as
shown below.
External Power Supply
Transmitter
24 Vdc
+
-
+
-
Wiring for Z1 Input
External Power Supply
24 Vdc
Transmitter
+
-
+
-
Wiring for Z2 Input
For three or four wire transmitters follow the wiring instructions provided
with your transmitter.
DO NOT WIRE THE 24 VOLT POWER SUPPLY
ACROSS THE INPUT OF THE CONTROL. DAMAGE
TO THE INSTRUMENT INPUT CIRCUITRY WILL RE-
SULT.
Page 7 of 40
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S
E
C
1
S
E
C
2
To set the access level to, for example,
UP ARROW key until the upper display shows the password,
Press the ENTER key. The display will blink, and return with the level
value, , in the upper display.
2
, at the
S
E
C
1
menu item press the
1
1
0
1.
2
temperature value. While in the Secure Menu, if no key is pressed for a
period of 60 seconds, the display will return to the HOME position displaying
the temperature value. Outputs are disabled (turned off) when the Secure
Menu is active.
NOTE: Tomovetothe PrimaryMenu quicklyfromanyothermenu, press
the UP ARROW & ENTER keys followed by pressing the INDEX & DOWN
ARROWkeys.
SECURITY LEVEL SELECTION
Four levels of security are provided. The display shows the current security
level. To change security levels change the password value using the
UP ARROW and
key. Refer to the password table (following) for the correct value to enter
for the security level desired. The or menu items security level
DOWN ARROW keys and pressing the
ENTER
may be viewed or changed at any time regardless of the present security
level.
The password values shown in the table cannot be altered, so retain a copy
of these pages for future reference. This is the only reference made to
password values in this instruction book.
PASSWORD TABLE
Security Level
Status
Displayed Value
When Viewed
Password Value
To Enter
Menu
Primary
Secondary
Secure
Locked
Locked
Locked
1
2
3
4
1110
1101
1011
111
Primary
Secondary
Secure
Unlocked
Locked
Locked
Primary
Secondary
Secure
Unlocked
Unlocked
Locked
Primary
Secondary
Secure
Unlocked
Unlocked
Unlocked
Page 9 of 40
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The home display is the normal display while the control is operating.
If no errors or functions are active, the HOME display will indicate the
Process Variable for Set Point 1 on the top display and the Process
variable for Set Point 2 on the bottom.
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When
O
u
t
1
and/or
O
u
t
2
aresetto
O
n
O
F,thenthealarmfunctionmenuitems
When Set Point Power Interrupt (
Reset (S# ) is programmed for
S
#
l
P
d
i
) is programmed
O
N
and Set Point
If Set Point Inhibit (
S
#i
H
) is selected
O
N, an alarm condition is suspended
Menu items that are dedicated to either Zone 1 or Zone 2 will have either
a 1 or 2 in them for identification.
If Editis set to any value other than 0, the setting will be retained for
a period of five minutes to allow handy, repeated access to that zone's
menues. After five minutes of keypad inactivity, the Edit setting will
revert to 0, giving an added layer of security to prevent inadvertant
changes to the instrument.
PROGRAMMING SET POINTS FOR ALARM FUNCTIONS
Caution: In any critical application where failure could
cause expensive product loss or endanger personal
safety, a redundant limit controller is required.
The C N 74000 Series allows Zone 1 and / or Zone 2 to operate as limit or alarm
type outputs. This function is available on both outputs. To enable a zone
outputtoactasanalarmorlimit,
be set for
O
u
t
1
(forZone1)or
O
u
t
2(forZone2)should
O
n
O
f.
will appear in the Secure Menu for the selected zone(s).
r
E
H
o
, the alarm will automatically reset
after a power failure and on subsequent power restoration if no alarm
condition is present.
upon power up until the process value passes through the alarm set point
once. Alarm inhibit can be restored as if a power up took place by pressing
both the
INDEX and
ENTER keys for 5 seconds.
Warning: If inhibit is on and a power failure occurs
during a high alarm, on restoration of power inhibit will
suppress the alarm. Do not use the Set Point Inhibit
featureifahazardmaybecreatedbythisaction. Besure
to test all combinations of high and low set point inhibit
actions before placing control into operation.
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using the control output as a simple on-off function (e.g.
none of the following will apply.
O
u
t
1
set for
O
n
O
F),
The Self Tune function calculates the
thePID1tunEselection, ,and
selection, the and parameters, and the
P
b
r
1
t
,
E
r
2
E
S
1
, and
parametersunderthe
and parameters,
r
t
E
1parameters under
F
b
d
1
on the process is still controlled by the
F
i
1
andFi 2(fuzzy intensity) settings.
Set Point 2 Tracking
Some applications will call for Set Point 2 to follow or 'track' the setting for
SetPoint1. ThiscanbedonebychangingtheS2tsettingintheSecureMenu
(editset for 2or 3). For a tracking SP2, set S2tto dE.
The Factory Default setting for S2t is ABS, making SP2 completely
independent of SP1.
When setting
), set the difference in value from the Set Point 1 (
example if Set Point 2 is required to be 5 degrees below the
S
P
2
value when Set Point 2 is programmed as deviation (
) desired. For
, then set
, then set
setting will continue to hold the same
S
2
t
=
d
E
S
P
1
S
P
1
S
P
2
to
-
5
. If Set Point 2 is required 20 degrees above the
is changed, the
S
P
1
S
P
2
to
2
0
. If
S
P
1
S
P
2
relationship as originally set.
When setting SP2 value when Set Point 2 is programmed as absolute (S2t
= AbS), simply set the value at which the alarm is to occur.
OPERATION OF SELF TUNE® FUNCTION
Self Tune® allows automatic selection of the necessary parameters to
achieve best control operation from your C N 74000 Series control. If you are
Theory of Operation
P
b
t
2
1
,
r
E
S
2
P
I
D
2
t
u
n
E
F
r
F
b
d
2
F
r
t
2
asshownintheSecondaryMenu. Thesevaluesaredeterminedbymeasuring
the response of the process connected to the control. When Self Tune is
started, the control temporarily acts as an on-off control. While in this mode
the control measures the overshoot and undershoot of the process, and the
period of the process (the time from peak value to the next peak value). These
measurementsarecollectedoveraperiodthatlaststhreeperiodsofovershoot
and undershoot. The data collected over this time is then compared and
calculated into final PID and Fuzzy Logic values. The effect of Fuzzy Logic
If Fi 1or Fi 2is 0, the Fbd1, Frt1, Fbd2, and Frt2will be calculated, but will
have no effect.
ThecalculationsforZone1andZone2arecompletelyindependent. Eachzone
has separate Self Tune and Fuzzy Logic parameters.
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amount of rate (derivative) that is applied. A
default) or less allows for less damping. A
d
F
C
C
1
1
or
or
d
d
f
f
C
C
d
2
2
F
setting of
setting of
3
4
2
(factory
allows
setting
d
F
for critical damping as set forth in Ziegler - Nichols. A
of or more allows over damping of the process.
C
1
or
d
f
C
5
t
u
n
1
t
u
n
2
to
S
E
L
F. Skip
L
r
n
1
/
to make sure that
d
F
C
1
/
Y
d
E
f
S
C
2
is (are) set to the desired value. Back up to
L
r
n
1
/
l
r
n
2
and set to
. The control will begin the Self Tune function.
After Self Tune is complete, the
t
u
n
1
/
t
u
n
2
setting(s) automatically
switch(es) to This allows examination and / or modification of the
P
I
D.
Select the control address and communication baud rate with the
menu items in the Secure Menu. The address for Zone 1 will be the
addressselected. TheaddressforZone2willbetheaddressselectedforZone
1 plus one. For example, if is set to 1E, Zone 1 parameters will be
A
d
d
r
and
b
A
U
d
A
d
d
r
ThecalculationsforthePIDvaluesarethesameasusedinthestandardZiegler
- Nichols equations that have been recognized as standard for decades.
The only modification to the application of the Ziegler - Nichols equations is
controlled by the dFC1and dfC2menu items. These menu items control the
Program Setup and Operation
Inthesecondarymenuset or
L
r
n
2andcheck
While the Self Tune function is active, the right hand decimal point on the
lower display will blink. When Self Tune is complete, the blinking will stop.
values calculated. We recommend that you do not change the calculated
valuesunlessyouhaveafirmunderstandingoftheparametersinvolvedand
their function. For more information on PID tuning, please contact your
supplier.
OPERATION AND PROGRAMMING OF OPTIONS
Option C4, Serial Communication.
The serial communications option allows the control to be written to and read
from a remote computer or other similar digital device. Communication is
allowed through a RS-485 (Option C4) port.
See Wiring for Optional Inputs and Outputs for information on wiring the
communication lines. Wiring for the RS-485 is run from control to control in
a daisy chain fashion with a termination resistor (120 ohms) across the
transmit and receive terminals of the last control in the chain.
addressed through address 1E and Zone 2 parameters will be addressed
through address 1F.
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L
O
r
E
L
O
C
L
O
r
E
r
E
L
O
r
E
n
A
t
L
O
r
E
r
E
n
A
t
n
A
t
C
H
E
C
L
O
r
E
L
O
r
E
L
O
C.
3. While control is performing
and ENTER keys.
4. The control will display the ROM ID code. Press
S
E
L
F
t
E
S
t
, press and hold the
INDEX
5. The control will display
F
A
C
t
d
F
L
t. If you wish to just restore factory
7. Press
INDEX to display
A
C
P
t
. Select or
Y
E
S
n
o.
Y
no
E
S
Changes are accepted and control re-boots.
Changes are discarded and control re-boots.
ENTER.
THE BAUD RATE AND ADDRESS MENU ITEMS WILL TAKE EFFECT ON THE
NEXT POWER UP OF THE CONTROL. BE SURE TO POWER CYCLE THE
CONTROL BEFORE USING THE NEW BAUD RATE AND ADDRESS
.
In operation, you have the option of preventing a write command from the host
computer. Topreventthehostfromwritingtothecontrolchangethe menu
item in the Secondary Menu to . To allow the host to write commands to
the control set to . (The host does have the ability to change the
state, but it is not automatic.)
Ifyoursystemdependsonconstantreadingorwritingtoandfromthehost, you
may wish to set the No Activity Timer ( ) to monitor the addressing of the
control. When the is set to and the is set to any value other than
Off, the control will expect to be addressed on a regular basis. If the control
is not addressed in the time set by the value of , then the control will display
the error message . To clear the message set to
FACTORY DEFAULT PROCEDURE
If for any reason you wish to restore the factory settings use the following
procedure.
1. Turn off power to control
2. Turn on power to control
INDEX.
settings, Press ENTER and
DOWN ARROW at the same
time. The control will be reset to the original factory settings.
6. Press
INDEX to display OPt. If your control is equipped with an
option, press the UP ARROW to display the option number. If the
number is flashing, press
flash.
ENTER. An enabled option does not
8. Press
The control will re-initialize with Factory Default settings.
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S
S
P
P
1
2
Set Point 1 Adjust, Control Point 1.
Set Point 2 Adjust, Control Point 2.
E
d
i
t
Edit Set Point parameters: Select 0, 1, 2, or 3.
0
1
Edit function is off.
Edit Secondary and Secure Menus for Set Point 1.
2
3
Edit Secondary and Secure Menus for Set Point 2.
Edit Secondary and Secure Menus for both Set
Points in sequence (menu items for Set Point 1
If
If
If
E
E
E
d
d
d
i
i
i
t
t
t
is set to
is set to
is set to
0
1
2
, begin.
or , jump to
, jump to
3
O
u
t
1
on page 17.
P
U
P
E
A
1
The Peak feature stores the highest input the control has
measured for Zone 1 since the last reset or Power On. At
Power On, PEA1 is reset to the present input value. To
manually reset the value
P
E
A
1
must be in the lower display.
A
L
1
The Valley feature stores the lowest input the Instrument
has measured for Zone 1 since the last reset or Power On.
At Power On,
U
A
L
1
is reset to the present input. To manually
reset the value
the ENTER key.
input value.
U
U
A
A
L
L
1
1
must be in the lower display. Press
will be reset and display the present
E
A
2
The Peak feature stores the highest input the control has
measured for Zone 2 since the last reset or Power On. At
MENU SELECTIONS
PRIMARY MENU
Press INDEX to advance to the next menu item. Press UP ARROW or
DOWN ARROW to change the value in the display. Press ENTER to retain
the value.
SECONDARY MENU
Hold UP ARROW & ENTER. Press INDEX to advance to the next
menu item. Press UP ARROW or DOWN ARROW to change the
value in the display.
Press ENTER to retain the value.
followed by menu items for Set Point 2).
O
u
t
2
on page 21.
Press the ENTER key to reset. PEA1 will be reset and
display the present input value.
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U
L
A
O
L
r
2
E
The Valley feature stores the lowest input the Instrument
has measured for Zone 2 since the last reset or Power On.
At Power On,
U
A
L
2
is reset to the present input. To manually
reset the value
the ENTER key.
input value.
U
U
A
A
L
L
2
2
must be in the lower display. Press
will be reset and display the present
(Option C 4, Serial Communications) Local / Remote Sta-
tus: Select or
L
O
C
r
E.
L
O
C
The host computer is advised not to send remote
commands. Any write commands sent to the
controls will be rejected.
r
E
The host computer is allowed to send write
commands.If the control is not addressed within
the time set in the
n
A
t
L
(No Activity Timer, see
error message will be
Secure Menu) the
displayed.
C
H
E
C
o
r
E
A
d
d
r
(Option C 4, Serial Communications) Control Address: Set
from 1 to 3FF. This number (hexadecimal, base 16) must
match the address number used by the host computer.
Viewed only in this menu. The value displayed is for Zone
1. The address for Zone 2 is the value for Zone 1 plus one.
To change this parameter, see
A
d
d
r
in the Secure Menu.
Power On, PEA2 is reset to the present input. To manually
reset the value PEA2 must be in the lower display. Press
the ENTER key to reset. PEA2 will be reset and display the
present input value.
End of Secondary Menu when Edit is set to
0.
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O
u
t
1
Output selection: Select
OF A setting of
O
F
n
O
f
,
1
t
P
, or
1
P
u
L
.
O
N
O
N
O
allows the control to operate as
point plus the differential (
the menu item is followed by ####/
and the , and
selections in the Secondary menu and the
and
pressed.
Set Point On-Off Differential (hysteresis).
Select to (direct acting), or to
(reverse acting). This value will be
S
P
1
d
). When selected,
O
u
t
1
/
O
n
O
F
t
u
n
1
,
P
b
1
,
r
E
S
1
,
O
F
S
1
,
r
t
E
1
A
S
r
1
S
O
1
L
S
1
O
H
selections in the Secure menu are sup-
S
P
1
d
1
9
9
9
9
-
1
-
9
9
9
9
##
t
P
Time Proportioning Cycle Time. Select
1
t
P
to
8
0
t
P.
1
t
P
A setting of
#
P
u
L
Pulsed Time Proportioning Output: Select
1PuL to 7PuL. 1PuL = Linear and 7PuL =
most nonlinear. Changes output linearity
for use in cooling applications or for an
extremely fast response processes. At the
center of the proportional band, a pulse
If
E
d
i
t
is set to
1
or
3
, begin.
If Edit is set to 2, jump to Out2 on page 20.
a simple on/off mode. This setting forces the
control to turn off at set point, and on at the set
S
P
1
d,
negative for reverse acting set points, and
positive for direct acting outputs. Set the
value for the amount of difference between
the turn off point (set point) and the turn on
point. The following drawing shows output
behavior for reverse and direct action.
1tPis recommended for solid
state outputs (SSR, DC SSR, or 5VDC).
2tP to 80tP Time Proportioning Control is ad-
justable in 1 second steps. Recommended
for mechanical outputs (relays, solenoids,
etc.). For best contact life, a time should
be selected as long as possible without
causing the process to wander.
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P
r
o
P
For Current (Code 5) outputs only.
, or
t
u
n
1
Tuning Choice: Select
S
E
L
F
,
P
i
d
,
S
L
O
,
n
o
r
F
A
S
t.
S
E
L
F
The instrument will evaluate the Process and
select the PID values to maintain good control.
Active for SP1 only.
L
r
n
1
Select
Y
E
S
or
n
o
Y
E
S
Start Learning the Process. After
the process has been learned the
menu item will revert to no.
n
o
Learning will stay in present mode.
d
F
C
1
Damping factor, Select
O
F
F
,
1
to
7. Sets
7
3
P
i
d
Manually adjust the PID values. PID control con-
sists of three basic parameters, Proportional Band
(Gain), Reset Time (Integral), and Rate Time
(Derivative).
P
b
1
Proportional Band (Bandwidth). Select
O
F
S
1
Manual Offset Correction Select
9
9
.
9
%. Select
O
F
F
to switch to
r
E
S
1.
n
o
r
PID values are preset for a normal response
process.
value of 1 provides an output of one sec-
ond on and one second off (50% output). A
pulse value of 2 provides an output of one
second on and two seconds off (33% out-
put). Output at center of band equals one
second on, 2(pulse value-1) seconds off.
the ratio of Rate to Reset for the SELF tunE
mode. = most Rate. Factory set to . For
a fast response process the value should
be lowered (less Rate). For a slower pro-
cess the value should be increased (more
Rate).
1to
9999 °F, °C, or counts.
rES1 Automatic Reset Time. Select OFF, 0.1 to
99.9minutes. Select OFFto switch to OFS1.
OFF, 0.1to
rtE1 Rate Time. Select OFF, 0.01 to 99.99 min-
utes, Derivative.
SLO
PID values are preset for a slow response pro-
cess.
FASt
PID values are preset for a fast response process.
ArS1
Anti- Reset Windup Feature: Select On or OFF.
On
Reset Offset value will be cleared to 0% when the
process input is not within the Proportional Band.
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O
F
F
Reset Offset Value is retained in memory when the
process input is not within the Proportional Band.
A
r
t
1
Approach Rate Time: Select
O
F
F
,
0
.
0
1
to
9
9
.
9
9
minutes. The
F
F
i
b
1
1
Fuzzy Logic Intensity: Select
0
to
1
0
0%. 0% is OFF
F
i
1
0
,
F
b
d
1
F
r
t
1
d
t
Fuzzy Logic Error Band: Select
Sets the bandwidth of the Fuzzy Logic. Set
PID proportional band ( ) for best results. Self Tune,
when used, calculates this value. Will not appear if
is
0
to
4
0
0
0
F
b
d
1
equal to
P
b
1
F
i
1
0.
F
r
1
Fuzzy Logic Rate of Change: Select
0
.
0
0
to
9
9
.
9
9
counts/
(100% output). Multiply this value by 3. Set
calculated value. Self Tune, when used, calculates this
value. Will not appear if is
F
r
t
1
to this
F
i
1
manually reset the value
P
E
A
1
must be in the lower display.
Press the ENTER key to reset.
P
E
A
1
will be reset and
U
A
L
1
The Valley feature stores the lowest input the Instrument
has measured for Zone 1 since the last reset or Power On.
At Power On,
U
A
L
1
is reset to the present input. To manually
function defines the amount of Rate applied when the input
is outside of the Proportional Band. The Art1time and the
rtE1time are independent and have no effect on each other.
To increase damping effect and reduce overshoot set the
approach rate time for a value greater than the natural rise
time of the process (natural rise time = process value time
to set point).
(disables Fuzzy Logic). The function defines the amount of
impact Fuzzy Logic will have on the output. If is set
to and below will not appear.
°F, °C, or counts.
second. For best initial setting, find the count/second
change of process value near Set Point 1 with output ON
0.
PEA1
The Peak feature stores the highest input the control has
measured for Zone 1 since the last reset or Power On. At
Power On, PEA1 is reset to the present input value. To
display the present input value.
reset the value UAL1 must be in the lower display. Press
the ENTER key. UAL1 will be reset and display the present
input value.
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I
F
n
i
C
L
1
1
Input Correction: Select
-
5
0
0
to
5
0
0
°F, °C, or counts. This
Digital Filter: Select
O
F
F
,
1
to
9
9. In some cases the time
L
P
b
1
Loop Break Protection: Select
O
F
F
,
1
to
9
9
9
9
seconds. If,
over the time set for LPb1, the
L
O
O
P
b
A
d
message will
If
If
E
E
d
d
i
i
t
t
is set to
is set to
1
3
, jump to
, continue.
L
o
r
E
on page 24.
feature allows the input value to be changed to agree with
an external reference or to compensate for sensor error.
Note: InC1is reset to zero when the input type is changed,
or when decimal position is changed.
constant of the sensor, or noise could cause the display to
jump enough to be unreadable. A setting of 2 is usually
sufficient to provide enough filtering for most cases, (2
represents approximately a 1 second time constant). When
the 0.1 degree resolution is selected this should be in-
creased to 4. If this value is set too high, controllability will
suffer.
during operation, the output is minimum (0%) or maximum
(100%), and the input moves less than 5°F (3°C) or 5 counts
appear. The loop break error can be reset by pressing the
ENTER key when at the LPb1 menu item. The INDEX &
ENTER keys may also be used.
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O
u
t
2
Output selection: Select
OF A setting of
O
F
n
O
f
,
1
t
P
, or
1
P
u
L
.
O
N
O
N
O
allows the control to operate as
point plus the differential (
the menu item is followed by ####/
and the , and
selections in the Secondary menu and the
and
pressed.
Set Point On-Off Differential (hysteresis).
Select to (direct acting), or to
(reverse acting). This value will be
S
P
2
d
). When selected,
O
u
t
2
/
t
u
n
2
,
P
b
2
,
r
E
S
2
,
O
F
S
2
,
r
t
E
2
A
S
r
2
s
O
2
L
S
2
O
H
selections in the Secure menu are sup-
S
P
2
d
1
9
9
9
9
-
1
-
9
9
9
9
##
t
P
Time Proportioning Cycle Time. Select
1
t
P
to
8
0
t
P
.
2
t
P
to
If
E
d
i
t
is set to
1
, jump to
L
o
r
E
on page 24.
If Edit is set to 3, continue.
If Edit is set to 2, begin.
a simple on/off mode. This setting forces the
control to turn off at set point, and on at the set
O
n
O
F
S
P
2
d,
negative for reverse acting set points, and
positive for direct acting outputs. Set the
value for the amount of difference between
the turn off point (set point) and the turn on
point. The following drawing shows output
behavior for reverse and direct action.
1tP
A setting of 1tPis recommended for solid
state outputs (SSR, DC SSR, or 15VDC).
80tP
Time Proportioning Control is ad-
justable in 1 second steps. Recommended
for mechanical outputs (relays, solenoids,
etc.). For best contact life, a time should
be selected as long as possible without
causing the process to wander.
#PuL Pulsed Time Proportioning Output: Select
1PuL to 7PuL. 1PuL = Linear and 7PuL =
most nonlinear. Changes output linearity
for use in cooling applications or for an
extremely fast response processes. At the
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t
S
u
n
2
Tuning Choice: Select
The Controller will evaluate the Process and se-
lect the PID values to maintain good control.
S
E
L
F
,
P
i
d
,
S
L
O
,
n
o
r
, or
F
A
S
t.
E
L
F
L
r
n
2
Select
Y
E
S
or
n
o
Y
E
S
Start Learning the Process. After
the process has been learned the
menu item will revert to
Learning will stay in present mode.
to
n
o
.
n
o
d
F
C
2
Damping factor, Select
the ratio of Rate to Reset for the SELF tunE
mode. = most Rate. Factory set to . For
O
F
F
,
1
7
3
P
i
d
Manually adjust the PID values. PID control con-
sists of three basic parameters, Proportional Band
(Gain), Reset Time (Integral), and Rate Time
(Derivative).
P
b
2
Proportional Band (Bandwidth). Select
O
F
S
2
Manual Offset Correction Select
9
9
.
9
%. Select
O
F
F
to switch to
r
E
S
2.
center of the proportional band, a pulse
value of 1 provides an output of one sec-
ond on and one second off (50% output). A
pulse value of 2 provides an output of one
second on and two seconds off (33% out-
put). Output at center of band equals one
second on, 2(pulse value-1) seconds off.
ProP For Current (Code 5) outputs only.
7. Sets
a fast response process the value should
be lowered (less Rate). For a slower pro-
cess the value should be increased (more
Rate).
1to
9999 °F, °C, or counts.
rES2 Automatic Reset Time. Select OFF, 0.1 to
99.9minutes. Select OFFto switch to OFS2.
OFF, 0.1to
rtE2 Rate Time. Select OFF, 0.01 to 99.99 min-
utes, Derivative.
SLO
nor
PID values are preset for a slow response pro-
cess.
PID values are preset for a normal response
process.
FASt
PID values are preset for a fast response process.
ArS2
Anti- Reset Windup Feature: Select On or OFF.
On
Reset Offset value will be cleared to 0% when the
process input is not within the Proportional Band.
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O
F
F
Reset Offset Value is retained in memory when the
process input is not within the Proportional Band.
A
r
t
2
Approach Rate Time: Select
O
F
F
,
0
.
0
1
to
9
9
.
9
9
minutes. The
F
F
i
b
2
2
Fuzzy Logic Intensity: Select
0
to
1
0
0%. 0% is OFF
F
i
2
0
,
F
b
d
2
F
r
t
2
d
t
Fuzzy Logic Error Band: Select
Sets the bandwidth of the Fuzzy Logic. Set
PID proportional band ( ) for best results. Self Tune,
when used, calculates this value automatically. Will not
appear if is set to
0
to
4
0
0
0
F
b
d
2
equal to
P
b
2
F
i
2
0.
F
r
2
Fuzzy Logic Rate of Change: Select
0
.
0
0
to
9
9
.
9
9
counts/
(Output is100%). Multiply this value by 3. Set
calculated value. Self Tune, when used, calculates this
value automatically. Will not appear if is set to
F
r
t
2
to this
F
i
2
reset the value
P
E
A
2
must be in the lower display. Press
the ENTER key to reset.
P
E
A
2
will be reset and display the
U
A
L
2
The Valley feature stores the lowest input the Instrument
has measured for Zone 2 since the last reset or Power On.
At Power On,
U
A
L
2
is reset to the present input. To manually
function defines the amount of Rate applied when the input
is outside of the Proportional Band. The Art2time and the
rtE2time are independent and have no effect on each other.
To increase damping effect and reduce overshoot set the
approach rate time for a value greater than the natural rise
time of the process (natural rise time = process value time
to set point).
(disables Fuzzy Logic). The function defines the amount of
impact Fuzzy Logic will have on the output. If is set
to and below will not appear.
°F, °C, or counts.
second. For best initial setting, find the count/second
change of process value near set point 1 with output ON
0.
PEA2
The Peak feature stores the highest input the control has
measured for Zone 2 since the last reset or Power On. At
Power On, PEA2 is reset to the present input. To manually
present input value.
reset the value UAL2 must be in the lower display. Press
the ENTER key. UAL2 will be reset and display the present
input value.
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I
F
n
i
C
l
2
2
Input Correction: Select
-
5
0
0
to 500°F, °C, or counts. This
Digital Filter: Select
O
F
F
,
1
to
9
9. In some cases the time
L
P
b
2
Loop Break Protection: Select
O
F
F
,
1
to
9
9
9
9
seconds. If,
over the time set for Lpb2, the
L
O
O
P
b
A
d
message will
the
E
d
i
t
1
,
E
d
i
t
2
, and
E
d
i
t
3
menus.
A
d
d
r
(Option C 4, Serial Communications) Control Address:
Read value from 1to 3FF. This number (hexadecimal, base
16) must match the address number used by the host
computer. Viewed only in this menu. The value displayed
is for Zone 1. The address for Zone 2 is the value for Zone
1 plus one (e.g. if Addr is set to 17, Zone 1 is assigned to
feature allows the input value to be changed to agree with
an external reference or to compensate for sensor error.
Note: InC2is reset to zero when the input type is changed,
or when decimal position is changed.
constant of the sensor, or noise could cause the display to
jump enough to be unreadable. A setting of 2 is usually
sufficient to provide enough filtering for most cases, (2
represents approximately a 1 second time constant). When
the 0.1 degree resolution is selected this should be in-
creased to 4. If this value is set too high, controllability will
suffer.
during operation, the output is minimum (0%) or maximum
(100%), and the input moves less than 5°F (3°C) or 5 counts
appear. The loop break error can be reset by pressing the
ENTER key when at the LPb2 menu item. The INDEX &
ENTER keys may also be used.
The following Menu Items operate on the entire instrument.
There is no Zone or Set Point distinction. They will appear in
LOrE
(Option C 4, Serial Communications) Local / Remote Sta-
tus: Select LOC or rE.
LOC
The host computer is advised not to send remote
commands. Any write commands sent to the
controls will be rejected.
rE
The host computer is allowed to send write
commands.If the control is not addressed within
the time set in the nAt (No Activity Timer, see
Secure Menu) the CHEC LorE error message will
be displayed.
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If
If
If
E
E
E
d
d
d
i
i
i
t
t
t
is set to
is set to
is set to
0
1
2
, begin.
or , jump to
, jump to
3
S
E
C
1
on page 26.
S
E
C
2
on page 29.
E
d
i
t
0.
A
d
d
r
(Option C4, Serial Communications) Control Address: Select
from to . This number (hexadecimal, base 16) must match
1
3
F
E
Zone 1 plus one (e.g. if
address and Zone 2 is assigned to address
, and are reserved for Factory use.
A
d
d
r
is set to
1
7
, Zone 1 is assigned to
1
0
7
1
8). Addresses
1
0
0
,
2
0
3
0
0
b
A
U
d
(Option C4, Serial Communications) Communication Baud
Rate: Select , or 00. This
3
0
0
1
2
0
0
2
4
0
0
4
8
0
0
9
6
0
0
1
9
2
O
F
F
No Activity Timer function is disabled.
End of Secure Menu when
E
d
i
t
is set to
0.
address
1
7
and Zone 2 is assigned to address
1
8). To
change this parameter, see Addr in the Secure Menu.
SECURE MENU
Hold UP ARROW & ENTER for 5 Seconds. Press INDEX to advance
to the next menu item. Press UP ARROW or DOWN ARROW to
change the value in the display. Press ENTER to retain the value.
OUTPUTS ARE DISABLED (TURNED OFF) WHILE THE INSTRU-
MENT IS IN SECURE MENU.
Note: There are no standard menu items for the Secure Menu
when is set to
the address number used by the host computer. The value
displayed is for Zone 1. The address for Zone 2 is the value for
,
,
,
,
number must match the baud rate used by the host computer.
nAt
(Option C 4, Serial Communications) No Activity Timer:
Set from OFF or 1 to 99 minutes.
1 - 99 Maximum time between host computer accesses.
If timer counts to 0, CHEC LorE will be displayed.
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d
P
t
1
Decimal Point Positioning: Select
0
,
0
.
0
,
0
.
0
0
, or
0
.
0
0
0. On
0
0
0
0
No decimal Point is selected. This is available for
all Input Types.
One decimal place is available for Type J, K, E, T,
L, RTD’s, Current and Voltage Inputs.
Two decimal places is only available for Current
and Voltage Inputs.
.
.
.
0
0
0
0
0
0
Three decimal places is only available for Current
I
n
t
1
Input Fault Timer: Select
O
F
F
,
0
.
1
to
5
4
0
.
0
minutes. When-
instrument will disable the output(s) and display
b
A
d
I
n
P.
Note: If both Set Point 1 and Set Point 2 are set for temperature
inputs, they must both be set for the same scale. While it is possible
to set one input as degrees F and the other degrees C, as there is
only one descriptor, one of the displays is likely to be mis-read. If
one Set Point is set for process input, you may select to display
either the temperature descriptor or neither (nonE).
temperature type inputs this will only effect the Process
Value, SP1, and InC1. For Current and Voltage Inputs all
Menu Items related to the Input will be affected.
and Voltage inputs.
ever an Input is out of range (UFLor OFLdisplayed), shorted,
or open the timer will start. When the time has elapsed, the
If OFF is selected, the Input Fault Timer will not be recog-
nized (time = infinite).
SEn1
Sensor Rate of Change: Select OFF, 1 to 4000 °F, °C, or
counts per 1 second period. This value is usually set to be
slightly greater than the fastest process response expected
during a 1 second period, but measured for at least 2
seconds. If the process is faster than this setting, the SEn1
bAd error message will appear. The outputs will then be
turned off. This function can be used to detect a runaway
condition, or speed up detection of an open thermocouple.
Use the INDEX & ENTER keys to reset.
SCL1
Scale Low: Select 100 to 9999 counts below SCH1. The total
span between SCL1and SCH1must be within 11998 counts.
Maximum setting range is -1999 to 9999 counts. Minimum
span is 100 counts. For Current and Voltage inputs, this will
set the low range end. Viewable only for Thermocouple and
RTD ranges.
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S
C
H
1
Scale High: Select 100 to 9999 counts above
S
C
L
1. The total
span between and must be within 11998 counts.
S
C
L
1
S
C
H
1
S
S
S
P
P
1
L
H
S
1
1
t
Set Point Low: Select from the lowest input range value to
SPH1 value. This will set the minimum SP1 value that can
be entered. The value for SP1will not stop moving when this
value is reached. Attempting to set a value for SP1 lower
than SPL1 will result in a CHEC SP1error. The value will not
be accepted.
Set Point High: Select from the highest input range value to
SPL1 value. This will set the maximum SP1 value that can
be entered. The value for SP1 will not stop moving when this
value is reached. Attempting to set a value for SP1 higher
than SPH1 will result in a CHEC SP1error. The value will not
be accepted.
Set Point State: Select
d
i
r
or
r
E.
d
i
r
Direct Action. As the input increases the output
will increase. Most commonly used in cooling
processes.
r
E
Reverse Action. As the input increases the output
will decrease. Most commonly used in heating
processes.
If
O
u
t
1
is set for ##
t
P
, #
P
U
L, or ProP, then S1OL and S1OH
S
1
O
H
S
1
O
H
Set Point Output High Limit: Select
1
0to
1
0
0
% but not less
to 2%
than for output codes 1, 2, 3, or 8. Select
S
1
O
L
1
0
1
0
Maximum setting range is -1999to +9999counts. Minimum
span is 100 counts. For Current and Voltage inputs, this will
set the high range end. Viewable only for Thermocouple and
RTD ranges.
(following) appear. If Out1 is set for
O
N
O
F
, then skip to
S
1
r
E.
S1OL
Set Point Output Low Limit: Select 0to 90% but not greater
than . This item limits the lowest output value. This is
useful for adding a bias to the process when needed.
Factory set to for output codes 1,2, 3, and 8. Factory set
to 20 for output code 5 (20% output equals 4 mA output).
0
but not less than S1OL for output code 5. This item allows
setting the maximum output limit. This is useful with pro-
cesses that are over powered. Adjustment to 102% allows
setting current output to force a full on condition for output
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S
S
1
1
r
P
E
i
Set Point Reset. Select
O
n
O
F
or
H
o
l
d
.
O
n
O
F
Control will automatically reset when process
passes back through
S
P
1
d.
H
o
L
d
Manual Reset. Reset (acknowledge) by simulta-
neously pressing the INDEX & DOWN ARROW
keys for 5 seconds.
Set Point Power Interrupt. Select
O
n
or
O
F
F
O
n
Alarm Power Interrupt is
O
n
. Control will automati-
O
F
F
Alarm Power Interrupt is
O
F
F. Control will power-
S
1
i
H
Set Point Inhibit: Select
O
n
or
O
F
F
.
O
n
Alarm Inhibit is
O
n
. Alarm action is suspended until
O
F
F
Alarm Inhibit is
O
F
F.
O
o
F
F
Lamp OFF when Output is ON.
devices which do not have bias adjustments. Factory set
to 100 for all output codes.
If Out1 is set for ##tP, #PUL, or ProP,then skip to S1LP.
.
cally reset on power-up if no alarm condition
exists.
up in alarm condition regardless of condition of
process.
the process value first enters a non-alarm condi-
tion.
S1LP
Set Point Lamp: Select O on or OoFF.
O on
Lamp ON when Output is ON.
If Edit is set to 1, jump to Addr on page 33.
If Edit is set to , continue.
3
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0, 0.0
Decimal Point Positioning: Select 0
. This will only effect
the Process Value, SP1, SP2, and InC1llnC2.
0
0.0
No decimal Point is selected.
One decimal place is available for Type J, K, E, T,
L Inputs.
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S
C
H
2
Scale High: Select 100 to 9999 counts above
S
C
L
2. The total
S
S
S
P
P
2
L
H
S
2
2
t
Set Point Low: Select from the lowest input range value to
SPH1 value. This will set the minimum SP2 value that can
be entered. The value for SP2will not stop moving when this
value is reached. Attempting to set a value for SP2 lower
than SPL2 will result in a CHEC SP2error. The value will not
be accepted.
Set Point High: Select from the highest input range value to
SPL2 value. This will set the maximum SP2 value that can
be entered. The value for SP2 will not stop moving when this
value is reached. Attempting to set a value for SP2 higher
than SPH2 will result in a CHEC SP2error. The value will not
be accepted.
Set Point State: Select
d
i
r
or
r
E.
d
i
r
Direct Action. As the input increases the output
will increase. Most commonly used in cooling
processes.
r
E
Reverse Action. As the input increases the output
will decrease. Most commonly used in heating
processes.
If
O
u
t
2
is set for ##
t
P
, or #
P
O
U
F
L
, then
S
2
O
H
and
S
.
2
O
H
(following)
appear. If
O
u
t
2
is set for
O
N
, then skip to
S
2
r
E
to
2
0
for output code 5 (20% output equals 4 mA output).
S
2
O
H
Set Point 1 Output High Limit: Select
1
0
to % but not less
1
0
0
span between SCL2 and SCH2 must be within 11998 counts.
Maximum setting range is -1999 to +9999 counts. Minimum
span is 100 counts. For Current and Voltage inputs, this will
set the high range end. Viewable only for Thermocouple and
RTD ranges.
S2OL
Set Point Output Low Limit: Select 0to 90% but not greater
than . This item limits the lowest output value. This is
S
2
O
H
useful for adding a bias to the process when needed.
Factory set to 0 for output codes 1,2, 3, and 8. Factory set
than S2OLfor output codes 1, 2, 3, or 8. Select 10to 102%
but not less than S2OL for output code 5. This item allows
setting the maximum output limit. This is useful with pro-
cesses that are over powered. Adjustment to 102% allows
setting current output to force a full on condition for output
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S
S
2
2
r
P
E
i
Set Point Reset. Select
O
n
O
F
or
H
o
l
d
.
O
n
O
F
Control will automatically reset when process
passes back through
S
P
2
d.
H
o
L
d
Manual Reset. Reset (acknowledge) by simulta-
neously pressing the INDEX & DOWN ARROW
keys for 5 seconds.
Set Point Power Interrupt. Select
O
n
or
O
F
F
O
n
Alarm Power Interrupt is
O
n
. Control will automati-
O
F
F
Alarm Power Interrupt is
O
F
F. Control will power-
S
2
i
H
Set Point Inhibit: Select
O
n
or
O
F
F
.
O
n
Alarm Inhibit is
O
n
. Alarm action is suspended until
O
F
F
Alarm Inhibit is
O
F
F.
S
2
t
Set Point 2 type: Select
S
P
H
2.
d
E
Deviation
S
P
2
generated by a change of
S
P
1.
devices which do not have bias adjustments. Factory set
to 100 for all output codes.
If Out2 is set for ##tP, #PUL, or ProP,then skip to S2LP.
.
cally reset on power-up if no alarm condition
exists.
up in alarm condition regardless of condition of
process.
the process value first enters a non-alarm condi-
tion.
S2LP
Set Point Lamp: Select O on or OoFF.
O on
Lamp ON when Output is ON.
OoFF
Lamp OFF when Output is ON.
Abs or dE.
AbS
Absolute SP2. SP2is independent of SP1, and may
be set anywhere between the limits of SPL2 and
SP2. SP2is set as a deviation from SP1,
and allows to retain its relationship with
when SP1 is changed.
S
P
1
Note: The SPL2 and SPH2 settings must be set to correspond with
the SPL1 and SPH1 settings. If not, a CHEC SP2 error may be
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S
C
A
P
O
d
1o
PY
dr
Set Point 1 Output Select: Select
O
u
t
A
or
O
u
t
b.
O
u
t
A
Set Point 1 is routed through Output A, Set Point 2 is
routed through Output B.
O
u
t
b
Set Point 1 is routed through Output B, Set Point 2 is
routed through Output A.
Copy Zone Parameters. Copies program parameters from one
zone to the other.
n
1
2
o
t
t
n
o
o
e
2
1
No copy function is performed. Factory default.
Copies all parameters from Zone 1 to Zone 2.
Copies all parameters from Zone 2 to Zone 1.
(Option C4, Serial Communications) Control Address: Select
from
1
to
3
F
E. This number (hexadecimal, base 16) must match
b
A
U
d
(Option C4, Serial Communications) Communication Baud
Rate: Select
3
0
0
,
1
2
0
0
,
2
4
0
0
,
4
8
0
0
,
9
6
0
0
, or
1
9
200. This
The following Menu Items operate on the entire Instrument.
There is no Set Point distinction. These items will appear in
both the Edit1, Edit2, and Edit3 menus.
the address number used by the host computer. The value
displayed is for Zone 1. The address for Zone 2 is the value
for Zone 1 plus one (e.g. if Addr is set to 17, Zone 1 is
assigned to address 17and Zone 2 is assigned to address
18). Addresses 100, 200, and 300 are reserved for Factory
use.
number must match the baud rate used by the host computer.
nAt
(Option C 4, Serial Communications) No Activity Timer:
Set from OFF or 1 to 99 minutes.
1 - 99 Maximum time between host computer accesses.
If timer counts to 0, CHEC LorE will be displayed.
OFF
No Activity Timer function is disabled.
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SPECIFICATIONS
Input: Thermocouple.
Input Impedance:
Thermocouple = 3 megohms minimum.
Sensor Break Protection: De-energizes control output to protect system
after customer set time. (See InP1 and InP2 in Secondary Menu.)
Set Point Range: Selectable (See Range Chart Page 39).
Display: Two 4 digit, 7 segment 6.35 mm (0.25") high LEDs.
Control Action: Reverse (usually heating), Direct (usually cooling) select-
able.
Proportional Band: 1 to 9999 °F, °C, or counts.
Reset Time (Integral): Off or 0.1 to 99.9 minutes.
Rate Time (Derivative): Off or 0.01 to 99.99 minutes.
Cycle Rate: 1 to 80 seconds.
On - Off Differential: Adjustable 1° F, 1° C, or 1 count to full scale in 1° F,
1° C, or 1 count steps.
Fuzzy Percent: 0 to 100%.
Fuzzy Rate: Off or 0.01 to 99.99 minutes.
Fuzzy Band: Off or 1 to 4000 °F, °C, or counts.
Accuracy: ±0.25% of span, ±1 least significant digit.
Resolution: 1 degree or 0.1 degree, selectable.
Line Voltage Stability: ±0.05% over the supply voltage range.
Temperature Stability: 100 ppm /°C typical, 200 ppm /°C maximum.
Common Mode Rejection: 140 db minimum at 60 Hz.
Normal Mode Rejection: 65 db typical, 60 db at 60 Hz.
Isolation:
Relay outputs: 1500 Vac to all other inputs and outputs.
Supply Voltage: 100 to 240 Vac, nominal, +10 -15%, 50 to 400 Hz. single
phase; 132 to 240 Vdc, nominal, +10 -20%.
Supply Voltage (Option LV): 12 to 24 Vdc, Vac 40-400 Hz, ±20%.
Power Consumption: 5VA maximum.
Operating Temperature: -10 to +55 °C (+14 to 131 °F).
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Storage Temperature: -40 to +80 °C (-40 to 176 °F).
Humidity Conditions: 0 to 90% up to 40 °C non-condensing, 10 to 50% at
55 °C non-condensing.
Memory Backup: Nonvolatile memory. No batteries required.
Control Output Ratings:
Relay (Output A, Output B): SPST, 3 A @ 240 Vac resistive; 1.5A
@240 Vac inductive; 1/10 HP @ 120 Vac.
Switched Voltage (non-isolated, Output A, Output B): 5 Vdc @
20 mA.
Panel Cutout: 45.0 mm x 22.2 mm (1.772" x 0.874").
Depth Behind Mounting Surface: 111.6 mm (4.395").
Weight: 114 g (4 oz).
Agency Approvals: UL and C-UL, file #E83725; CE.
Front Panel Rating: IP66, Type 4.
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F
t
A
E
I
S
L
t
Fail test appears
upon power up if the outputsinactive
Setpoint
internal diagnostics Alarm inactive ingmessages:
FACt
dFLt:Mem-
troller programming.
r
E
t
FACt:
C
C
H
H
E
E
C
C
S
S
P
P
1
2
This message will
up if SP1 is set out-
Setpoint
inactive
appear upon power
output(s)
the
S
P
L
1,
S
P
L
2,
S
P
L
2, or
S
P
H
2
C
C
H
H
E
E
C
C
or
C
S
S
P
P
L
H
1
1
Setpoint
output(s)
inactive
C
C
H
H
E
E
S
S
P
P
L
H
2
2
Alarm inactive
C
C
H
o
E
r
C
Setpoint
outputs active
L
S
E
C
E
n
Setpoint
output(s)
inactive.
A
r
E
A
Thismessageappears
Setpoint
DIAGNOSTIC ERROR MESSAGES
DISPLAY
MEANING
SP OUTPUTS
ACTION REQUIRED
No
Display is blank. In-
Setpoint
Checkthatthepowersupplyis
display
lighted
strument is not get- outputsinactive on, or that the external fuses
tingpower,orthesup- Alarm inactive aregood.
plyvoltageistoolow.
Thedisplayalternatesbetween
FAILtEStandoneofthefollow-
detectafailure. This
messagemayoccur
during operation if a
failure is detected.
Displays flash.
orymaybecorrupted. Pressthe
ENTER key and the DOWN
ARROWkeytostartthefactory
defaultprocedure. Recheckcon-
Unrecoverable error, return to
factory for service.
CorrecttheSP1,SP2.oradjust
values by programming new
side of the SPL1/
SPH1valuesor SP2
is set outside the
SPL2/SPH2values.
Alarm active values.
This message ap-
pears at power up if
SPL or SPH values
areprogrammedout-
side the input range
ends.
Correct the SPL1, SPH1, SPL2,
or SPH2 values by program-
ming new values.
This message ap-
pears if the Serial
Communications Alarm inactive
has timed out.
Restore the communications
lineandswitchtheLorEtoLOC.
Sensor Rate of
Change exceeded
theprogrammedlim-
Check for the cause of the er-
ror. The value setting may be
tooslowfortheprocess,orthe
its set for SEnC. Ap- Alarm Active sensorisintermittent. Correct
pears in display of
affected zone.
theproblemandpressINDEX
and ENTER to reset.
Correct the ambient tempera-
(Alternates iftheambiienttemper- outputs active ture conditions. Ventilate the
withPV ature of the control is Alarms active areaofthecabinetorcheckfor
whennear) near or out of range or
clogged filters. If RJC broken,
return to factory for service.
RJC sensor is broken.
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OMEGA Engineering
One Omega Drive
Stamford, Connecticut 06907-0047
P.O. Box 4047
Telephone: 800/848-4286; 203/359-1660
Fax: 203/359-7700
FR# 08-195860-03
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OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of from date of purchase. OMEGA’s WARRANTY adds
an additional one (1) month grace period to the normal to
cover handling and shipping time. This ensures that OMEGA’s customers receive maximum
coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be
repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting
from any action of the purchaser, including but not limited to mishandling, improper
interfacing, operation outside of design limits, improper repair, or unauthorized modification.
This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows
evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture
or vibration; improper specification; misapplication; misuse or other operating conditions
outside of OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1)
as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or
activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or
with any nuclear installation or activity, medical application, used on humans, or misused in
any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER
language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless fro m
any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT
(IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be
marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.
FOR
RETURNS, please have
FOR
REPAIRS, consult
the following information available BEFORE
OMEGA for current repair charges. Have the
following information available BEFORE
contacting OMEGA:
contacting OMEGA:
1. Purchase Order number under which
the product was PURCHASED,
2. Model and serial number of the product
under warranty, and
1. Purchase Order number to cover the
COST of the repair,
2. Model and serial number of the
product, and
3. Repair instructions and/or specific problems
relative to the product.
3. Repair instructions and/or specific
problems relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2006 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without
the prior written consent of OMEGA ENGINEERING, INC.
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Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
Shop online at omega.com
TEMPERATURE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Ⅺ
ߜ Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Transducers & Strain Gages
Load Cells & Pressure Gages
Displacement Transducers
Instrumentation & Accessories
FLOW/LEVEL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
pH/CONDUCTIVITY
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Ⅺ
ߜ Recorders, Printers & Plotters
HEATERS
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Ⅺ
ߜ Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
M0000/0006
CN 79000
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