Material:Silver-CadmiumOxide
Electrical Life: 105 operations at
ratedload
Note: External relay contact
protection is required for use
with inductive loads (see relay
protection Figures 2 & 3).
MechanicalLife:107 operations
Wire Termination
Stability
Temperature:±0.05%offull
scale/°C, max.
Common Mode Rejection
DC to 60Hz: 120dB
Isolation
1800VDCbetweencontacts,
inputandpower
EMC Compliance (CE Mark)
Emissions:EN50081-1
Immunity:EN50082-2
Safety:EN50178
Humidity(Non-Condensing)
Operating: 15 to 95% (@45°C)
Soak: 90% for 24 hours (@65°C)
Temperature Range
Operating: 0 to 55°C (32 to 131°F)
Storage: -15 to 70°C (5 to 158°F)
Power
SPECIFICATIONS
Inputs
Range: See Table 1
Impedance:>1Megaohm
InputBiasCurrent(burnout
detection): <1.5 microamp
Overvoltage:±10Vdifferential
CommonMode(InputtoGround):
1800VDC,max.
DRG-AR-TC
Field Configurable Limit Alarm
Instruction Sheet M2398/0796
Screw terminations for 12-22 AWG
AgencyApprovals
LEDIndicators
Input Range (Green)
>110% input: 8Hz flash
<0% input: 4Hz flash
Setpoint (Red):
Tripped:Solidred
Safe:off
Limit Differentials (Deadbands)
0.25% to 5% of span
Response Time
CSA certifiedperstandardC22.2,
No.0-M91and142-M1987(File
No. LR42272) UL recognized per
standardUL508(FileNo.E99775)
CE Conformance per EMC directive
89/336/EECandLowVoltage73/23/
EEC
OPERATION
CONFIGURATION
The field configurable DRG-AR-TC Unless otherwise specified, the
limit alarm setpoints can be config- factorypresetsModelDRG-AR-TCas
ured for HI or LO, failsafe or non- follows:
DESCRIPTION
The DRG-AR-TC is a DIN rail mount,
thermocouple input limit alarm with
dualsetpointsandtwocontactclosure
outputs. The field configurable input
and alarm functions offer flexible
setpointcapability. Thereareuptosix
temperaturerangesavailableforeach
thermocoupletypetoensureaccura-
cy and maximize setpoint resolution.
A bipolar input switch is provided for
temperature ranges below 0°C.
failsafe operation. Each of the
Input:
J Type
setpoints has a respective HI or LO
deadband. Inatrippedcondition, the
setpoint is exceeded and the appro-
priateredLEDwillilluminate. Thetrip
will reset only when the process falls
belowtheHIdeadbandorrisesabove
thelowdeadband(seeFigure1). For
proper deadband operation, the HI
setpointmustalwaysbesetabovethe
LOsetpoint.
Mounting
Range:
Output:
Trip:
Failsafe:
Deadband:
0 to 350°C
Dual, SPDT
A: HI, B: LO
No
Consumption: 1.5W typical,
2.5W max.
Supply Range: 9 to 30 VDC,
inverterisolated
In-rushCurrent:300mA, max.
RelayContacts
2 SPDT (2 Form C) Relays
1 Relay per setpoint
Current Rating (resistive)
120VAC:5A
32mm and 35mm DIN Rail
DynamicDeadband:
Relay status will change when
propersetpoint/processcondition
exists for 100msec
NormalMode(analogfiltering):
<250msec, (10-90%)
Setpoint
Effectivity: Setpoint(s) are adjustable
over 100% of the selected input
span
Repeatability(constanttemp.):
0.2% for temp > 0°C
0.3% for temp < 0°C
PIN CONNECTIONS
11 N.O. Relay B
12 Com. Relay B
13 N.C. Relay B
21 DC Power (+)
22 DC Power (-)
23 No Connection
41 T/C Input (+)
42 T/C Input (-)
43 NoConnection
51 N.O. RelayA
52 Com. Relay A
53 N.C. RelayA
A, B: 0.25%
The DC power input accepts any DC
source between 9 and 30V, typically
a 12V or 24VDC source is used.
TheDRG-AR-TCisconfigurableasa
singleordualsetpointalarm,withHIor
LO trips, upscale or downscale ther-
mocouple burnout detection and
failsafeornon-failsafeoperation. Also
included are adjustable deadbands
(0.25to5%offullscaleinput)foreach
setpointandaflexibleDCpowersup-
ply which accepts any voltage be-
tween 9 and 30VDC.
For other I/O ranges, refer to
Table1andreconfigureswitchesSW1
and SW2 for the desired input type,
range and function.
240VAC:2A
28VDC:5A
In failsafe operation, the relay is en-
ergizedwhentheprocessisbelowthe
HI setpoint or above the LO setpoint
(opposite for non-failsafe). In the
failsafe mode, a power failure results
in an alarm state output.
WARNING:Donotattempttochangeany
switchsettingswithpowerapplied.Severe
damagewillresult!
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of manufacturing defects for the life of the product.
Illustrating LO Setpoint
If the unit should malfunction, 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 repairedor 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, improperrepair, orunauthorizedmodification. ThisWARRANTYisVOIDiftheunitshowsevidenceofhavingbeentampered withorshowsevidenceofbeingdamaged
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 which wear are not warranted, including but not limited to contact points, fuses, and triacs.
OMEGAnetSM On-Line Service
Illustrating HI Setpoint
Setpoint
Internet e-mail
1. WithDCpoweroff, position switch
SW1-1, 2, 3 and SW2-
1through6forthedesiredinputrange
(Table 1).
DIAGNOSTICLEDS
100
Relay returns to its
The DRG-AR-TC is equipped with
three front panel LEDs. The first is a
dual function LED labeled INPUT.
This green LED indicates DC power
and input signal status. Active DC
power is indicated by an illuminated
LED. If this LED is off, check line
power and wiring connection. If the
input signal is more than 110% of the
fullscalerange,theLEDwillflashat8
Hz. Below 0%, the flash rate is 4 Hz.
Servicing North America:
untripped condition
USA:
ISO 9001 Certified
One Omega Drive, Box 4047
Stamford, CT 06907-0047
Telephone: (203) 359-1660
e-mail:[email protected]
Relay Trips
(LED Red)
(LED Off)
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by
it will be as specified and free of defects. OMEGA MAKES NO OTHERWARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED,
EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANYWARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order,
whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no
event shall OMEGA be liable for consequential, incidental or special damages.
Fax: (203) 359-7700
}
10% Deadband
10% Deadband
50
Canada:
976 Bergar
}
2. Set positions 4 and 5 of function
switch “SW1” to ON for a HI trip
setpoint or OFF for a LO trip setpoint
(Figure 4).
Laval (Quebec) H7L 5A1
Telephone: (514) 856-6928
e-mail: [email protected]
Fax: (514) 856-6886
Relay Trips
(LED Red)
Relay returns to its
untripped condition
(LED off)
For immediate technical sevice or application assistance:
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 from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.
Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM
Customer Service: 1-800-622-2378 / 1-800-622-BESTSM
Engineering Service: 1-800-872-9436 / 1-800-USA-WHENSM
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
USA and Canada:
Time
Figure 1: Limit alarm operation and
effectofdeadband(s).
3. Set position 6 of function switch
“SW1” to ON for non-failsafe opera-
tionorOFFforfailsafeoperation(e.g.
alarm trips upon power failure).
Mexico and
Latin America:
Tel: (95) 800-TC-OMEGASM
Fax: (95) 203-359-7807
En Espanol: (203) 359-1660 ext. 2203
e-mail: [email protected]
Servicing Europe:
DYNAMICDEADBAND
RETURN REQUEST/ INQUIRIES
Directallwarrantyandrepairrequests/inquiriestotheOMEGACustomerServiceDepartment. BEFORERETURNINGANYPRODUCT(S)TOOMEGA,PURCHASER
MUSTOBTAINANAUTHORIZEDRETURN(AR)NUMBERFROMOMEGA'SCUSTOMERSERVICEDEPARTMENT(INORDERTOAVOIDPROCESSING
DELAYS).TheassignedARnumbershouldthenbemarkedontheoutsideofthereturnpackageandonanycorrespondence.
Benelux:
Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: (31) 20 6418405
Toll Free in Benelux: 06 0993344
e-mail: [email protected]
Fax: (31) 20 6434643
LSI circuitry in the DRG-AR-TC pre-
vents false trips by repeatedly sam-
plingtheinput. Theinputmustremain
beyond the setpoint for 100 millisec-
onds, uninterrupted, to qualify as a
TworedLED’sindicatetherelaystate
for each setpoint. An illuminated red
LED indicates the tripped condition.
4. Set positions 7 and 8 of function
switch"SW1"toupscaleordownscale
burn-out.
Thepurchaserisresponsibleforshippingcharges,freight,insuranceandproperpackagingtopreventbreakageintransit.
Czech Republic:
France:
Ostravska 767, 733 01 Karvina
Tel: 42 (69) 6311899
e-mail: [email protected]
Fax: 42 (69) 6311114
Fax: 33 0130-699-120
FORNON-WARRANTYREPAIRS,consultOMEGAforcurrentrepair
charges.HavethefollowinginformationavailableBEFOREcontactingOMEGA:
1. P.O.numbertocovertheCOSToftherepair,
FORWARRANTYRETURNS,pleasehavethefollowinginformation
availableBEFOREcontactingOMEGA:
1. P.O.numberunderwhichtheproductwasPURCHASED,
2. Modelandserialnumberoftheproductunderwarranty,and
3. Repairinstructionsand/orspecificproblemsrelativetotheproduct
9, rue Denis Papin, 78190 Trappes
Tel:33 0130-621-400
Toll Free in France: 05-4-06342
e-mail: [email protected]
2. Modelandserialnumberofproduct,and
OUTPUT
3. Repairinstructionsand/orspecificproblemsrelativetotheproduct.
TheDRG-AR-TCisequippedwithtwo validtripcondition. Likewise,theinput
SPDT (form C) relays, rated at must fall outside the deadband and
120VAC or 28VDC at 5 amperes. remain there for 100 milliseconds to
Eachoftheserelaysisindependently return the alarm to an untripped con-
controlledbythefieldconfigurableset dition. This effectively results in a
Germany/Austria:
Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
OMEGA'spolicyistomakerunningchanges,notmodelchanges,wheneveranimprovementispossible.Thisaffordsourcustomersthelatestintechnologyand
engineering.
OMEGAisaregisteredtrademarkofOMEGAENGINEERING,INC.
Tel:49 (07056) 3017
Toll Free in Germany: 0130 11 21 66
e-mail: [email protected]
Fax: 49 (07056) 8540
ã Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This documentation may not be copied, photocopied, reproduced, translated, or reduced to any
electronic medium or machine-readable form, in whole or in part, without prior written consent of OMEGA ENGINEERING, INC.
United Kingdom:
ISO 9002 Certified
25 Swannington Road,
Broughton Astely, Leicestershire,
LE9 6TU, England
Tel: 44 (1455) 285520
Fax: 44 (1455) 283912
P.O. Box 7, Omega Drive
Irlam, Manchester,
M44 5EX, England
Tel: 44 (161) 777-6611
Fax: 44 (161) 777-6622
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European
New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter
specifications without notice.
point and deadband.
“dynamic deadband” —based on
time— in addition to the normal
deadband.
WARNING: These product are not designed for use in, and should not be used for, patient connected applications.
Toll Free in England: 0800-488-488
e-mail: [email protected]
721-0609-00A
8/96
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