Specifications
Series 146
(2089)
Control Mode
• High or low limit, factory selectable
• Manual or automatic reset on power loss, factory selectable
• Latching alarm with manual reset on over or under temperature
• Internal and/or customer supplied external reset switch
Operator Interface
User’s Manual
• LED indication of output status
• Dial scale calibrated to compensate for sensor
non-linearities
• Integral or remote set point
• Dual temperature scale (°C and °F)
• Fixed set point
• Manufactured to specified value
Input
• Thermocouple or platinum RTD available
• Thermocouple with automatic cold junction compensation
• Thermocouple may be isolated or grounded
• Thermocouple and RTD break protection de-energizes output
• 2- or 3-wire RTD input, 100Ω @ 0°C calibrated for 0.003850Ω/Ω
°C curve
Output
Temperature Regulator
• Electromechanical relay, 8A, Form C, SPDT: 8A @ 240VÅ resis-
tive, 8A @ 28VÎ (dc) resistive, 275VA pilot duty rated
Accuracy
Adjustable Set Point, integral or remote
• Calibration accuracy: 1% of span, at 25°C 3°C (77°F 5°F)
ambient and rated line voltage 1%
• Set point accuracy: 3% of dial scale
• Accuracy span: 540°C (1000°F) minimum
Fixed Set Point
TOTAL
CUSTOMER
SATISFACTION
3YearWarranty
• Calibration accuracy: 6°C/ 10°F of setting, at 25°C 3°C (77°F
5°F) ambient and rated line voltage 1%
Temperature Stability
Registered Company
Winona, Minnesota USA
• Thermocouple: Typically 9µV/°C ambient (5µV/°F ambient) input
referenced
• RTD: Typically 0.2°C/°C ambient (0.2°F/°F ambient)
Voltage Stability
•
0.01% of span (min. span of 540°C or 1000°F) per % of rated
line voltage
Agency Approvals
• CE: EN61010 - Safety
EN61326 - Industrial Immunity, Class B Emissions
Installation Category 2, Pollution Degree 2
873, File #E43684
to C22.2 No. 24, File #E43684
•
•
1241 Bundy Boulevard, P.O. Box 5580, Winona, Minnesota USA 55987-5580
• Approved for use in commercial cooking applications
• FM Class 3545, File J.I. 3007307
Terminals
• Captive screw, cage clamp connection, 4 mm (0.155 in.) max.
width screwdriver blade, 30 to 14-gauge wire
Mounting
0600-0004-0010 Rev D
December 2001
Supersedes: 0600-0004-0010 Rev C
$5.00
Made in the U.S.A.
• DIN rail, DIN EN50022, 35 mm x 7.5 mm
• Sub-panel flush mounting
Power
• 24V~, +10%/-15%, 50/60 Hz
• 120V~, +10%/-15%, 50/60 Hz
• 230V~ to 240~, +10%/-15%, 50/60 Hz
• 10VA maximum power
Operating Environment
• 0 to 55°C (32 to 131°F)
• 0 to 90% RH, non-condensing
• Storage temperature: -20 to 85°C (-4 to 185°F)
Dimensions
General Description
The Watlow Series 146 is a DIN rail mount, tempera-
ture regulating controller with a thermocouple or RTD
sensor input. The DIN rail mounting offers quick and easy
installation with the use of simple hand tools. The con-
troller may also be flush mounted.
The Series 146 is designed to meet the needs of a
wide range of safety applications. Factory selectable
options include high or low control mode with either
manual or automatic reset on power loss.
• Width: 60 mm (2.28 in)
• Height: 115 mm (4.45 in)
• Depth: 100 mm (3.89 in)
Weight
The Series 146 has an LED for output status
indication and can be ordered with an integral or remote
adjustable set point, or a fixed set point.
• 0.3kg (0.7 lb.)
®
UL is a registered trademark of Underwriter’s Laboratories, Inc.
1 I Watlow Series 146 User’s Manual
Note: Specifications subject to change without notice.
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Power Wiring
120VÅ
146_ - 1 _ _ _ - 0000
146_ - 2 _ _ _ - 0000
146_ - 3 _ _ _ - 0000
Power Disconnect
Switch
230 to 240 VÅ
24VÅ
Fuse
L1
L2
NOTE: The line voltage is specified by your model number.
çWARNING: To avoid potential electric shock, use National
Recommended
fuse size: 1A
Electrical Code safety practices when wiring and connecting this
unit to a power source and to electrical sensors or peripheral
devices. All wiring and fusing must conform to the National Electric
Code and to any locally applicable codes. Failure to comply with
these recommendations could result in damage to equipment and
property, and injury to personnel.
1
3
çWARNING: The Series 146 safety limit should be mounted in an
inconspicuous location to discourage unauthorized changes to the
set point. Only approved and appropriate personnel should have the
authority to change the set point on the limit switch. Failure to com-
ply with these recommendations could result in damage to equip-
ment and property, and injury to personnel.
Figure 3a — Power wiring.
çCAUTION: Applying incorrect voltage may result in irreversible
damage to the controller.
Input Wiring
Output Wiring
Electromechanical Relay, Form C
Thermocouple
8A
146E - _ _ _ _ - _ 000
ç
L1
Fuse
NOTE: Switching induc-
tive loads (relay coils,
solenoids, etc.) with the
mechanical relay,
switched dc or solid-
state relay output
options requires use of
an R.C. Suppressor.
Watlow carries the R.C.
suppressor Quencharc
brand name, which is a
trademark of ITW
L2
Customer
Supplied
Quencharc
External
Device
C
NC
9
NO
High
5
7
Temperature
Light
10 11
+
–
Figure 3b — Thermocouple wiring.
2- and 3-Wire RTD
Paktron. Watlow Part
No. 0804-0147-0000.
Figure 3d — Electromechanical relay wiring.
Remote Reset
NOTE: The Series 146 used with a
remote reset may affect FM recogni-
tion. Only the use of a momentary
switch is valid for approval.
10 11 12
S3
12
10 11
S3
NOTE: Reset is customer-supplied.
Figure 3e — Remote reset wiring.
S2
S2
S1
13 14 15 16 17
S1
3-wire RTD
2-wire RTD
Customer-Supplied
Reset
Figure 3c — 2- and 3-Wire RTD Wiring
NOTE: 2- or 3-wire RTD input, calibrated for 0.003850Ω/Ω °C curve.
3 I Watlow Series 146 User’s Manual
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System Example
Power Disconnect
Switch
L1
120V~
L2
Customer
High-
Fuse
coil
Supplied
Fuse
Temperature
Light
Quencharc
Fuse
High Limit
Mechanical
Contactor
Fuse
NO
C
NC
1
2
3
4
5
1
2
3
4
5
6
7
8
9
S
E
N
S
O
R
550
500
600
450
650
700
750
800
400
350
+
SSR-240-10A-DC1
Solid-State Relay
out
in
-
300
Series 102
Temperature Controller
102C-16XX-1000
Heater
10 11 12 13 14 15 16 17
Limit Sensor
Series 146
Process Sensor
Reset
Switch
(Customer
Supplied)
Limit Control
146E-16XX-1000
120VÅ
L1
L2
Power Disconnect
Switch
1
2
1
2
3
3
1
2
4 (+)
Series 102
Temperature Controller
102C-16XX-1000
5 (-)
3
5
4
5
6
7
SSR-240-10A-DC1
Solid-State Relay
3 to 32
(+) VÎ (dc) in. (-)
1 CR-1
48 to 260
VÅ out
Heater
1
8
9
10
2
1
3
6
7
11
1
2
12
13
Series 146
146E-16XX-1000
Temperature Limit
13
14
8
14 (+) 10
9
10
11
12
13
15 (-) 11
5
NO
7
1 CR
16
Com
2
1
17
NC
18
9
R
2
High-Temperature Light
Figure 4 — System wiring examples.
4 I Watlow Series 146 User’s Manual
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Declaration of Conformity
Series 146
Erklärt, daß das folgende Produkt:
Beschreibung:
Modellnummer(n):
Deutsch
Serie 146
146E - (1, 2 oder 3) (100-999) - (1, 2, 3 oder 4)
(Drei beliebige Buchstaben oder Ziffern)
Klassifikation:
Regelsystem, Installationskategorie II, Emissionsgrad II
Nennspannung:
Nennfrequenz:
24, 120 oder 240V
50/60 Hz
WATLOW WINONA
1241 Bundy Boulevard
Winona, Minnesota 55987 USA
Nominaler Stromverbrauch:
Maximaler 10VA
Erfüllt die wichtigsten Normen der folgenden Anweisung(en) der Europäischen Union unter Verwendung
des wichtigsten Abschnitts bzw. der wichtigsten Abschnitte die unten zur Befolgung aufgezeigt werden.
Declares that the following product:
Designation: Series 146
Model Numbers: 146E - (1,2 or 3) (100-999) - (1, 2, 3 or 4) (Any three letters
or numbers)
English
89/336/EEC Elektromagnetische Übereinstimmungsanweisung
EN 61326:1997 With A1:1998 - Sicherheitsrichtlinien für Elektrogeräte zur Messung, zur
Steuerung und im Labor - EMC Erfordernis (Industrieimmunität, Klasse A Emission).
EN 61000-4-2:1996 With A1, 1998 - Elektrostatische Entladungsimmunität
EN 61000-4-3:1997 - Strahlungsfeldimmunität
Classification: Temperature control, Installation Category II, Pollution degree II
Rated Voltage: 24, 120 or 240 V~ (ac)
EN 61000-4-4:1995 - Elektrische schnelle Stöße/Burstimmunität
EN 61000-4-5:1995 With A1, 1996 - Spannungsstoßimmunität
Rated Frequency: 50 or 60 Hz
EN 61000-4-6:1996 - Störimmunität
Rated Power Consumption: 10 VA maximum
Meets the essential requirements of the following European Union Directives by using the
relevant standards shown below to indicate compliance.
EN 61000-4-11:1994 Spannungsabfall, Kurze Unterbrechungen und Spannungsschwankungsimmunität
EN 61000-3-2:1995 With A1-3:1999 - Grenzen der Oberwellenstromemissionen
EN 61000-3-3:1995 With A1:1998 - Spannungsschwankungen und Flimmern
89/336/EEC Electromagnetic Compatibility Directive
EN 61326:1997 With A1:1998 - Electrical equipment for measurement, control and
laboratory use - EMC requirements (Industrial Immunity, Class A Emissions).
EN 61000-4-2:1996 With A1, 1998 - Electrostatic Discharge Immunity
EN 61000-4-3:1997 - Radiated Field Immunity
73/23/EEC Niederspannungsrichtlinie zu entsprechen
EN 61010-1:1993 mit A1:1995 Sicherheitsrichtlinien für Elektrogeräte zur Messung,
zur Steuerung und im Labor, Teil 1: Allgemeine Richtlinien
EN 61000-4-4:1995 - Electrical Fast-Transient / Burst Immunity
EN 61000-4-5:1995 With A1, 1996 - Surge Immunity
EN 61000-4-6:1996 - Conducted Immunity
EN 61000-4-11:1994 Voltage Dips, Short Interruptions and Voltage Variations Immunity
EN 61000-3-2:1995 With A1-3:1999 - Harmonic Current Emissions
EN 61000-3-3:1995 With A1:1998 - Voltage Fluctuations and Flicker
73/23/EEC Low-Voltage Directive
EN 61010-1:1993 With A1:1995 Safety Requirements of electrical equipment for
measurement, control and laboratory use. Part 1: General requirements
Declara que el producto siguiente:
Designación:
Números de modelo:
Español
Serie 146
146E - (1, 2 ó 3) (100-999) - (1, 2, 3 ó 4)
(Cualquier combinación de tres números y letras)
Clasificación:
Control de temperatura, Categoría de instalación II,
grado de contaminación ambiental II
Tensión nominal:
Frecuencia nominal:
24, 120 ó 240V
50/60 Hz
Consumo nominal de energía:
10 VA máximo
Cumple con los requisitos esenciales de las siguientes Directivas de la Unión Europea mediante
el uso de las normas pertinentes que se muestran a continuación para indicar su acatamiento.
déclare que le produit suivant :
Français
89/336/EEC Directiva de compatibilidad electromagnética
EN 61326:1997 CON a1:1998.- Equipo eléctrico para medición, control y
uso en laboratorio - Requisitos EMC (Inmunidad industrial, Emisiones Clase A).
EN 61000-4-2:1996 con A1, 1988 - Inmunidad a descarga electrostática
EN 61000-4-3:1997 - Inmunidad a campo radiado
Désignation : Série 146 Numéros de modèle : 146E - (1,2 ou 3) (100-999) - (1, 2, 3 ou 4)
(N'importe quelle combinaison de trois lettres ou chiffres)
Classification : Régulation de température, Catégorie d'installation II, Degré de pollution II
Tension nominale : 24, 120 ou 240V~ (c.a)
Fréquence nominale : 50 ou 60 Hz
Consommation d'alimentation nominale : 10 VA maximum
EN 61000-4-4:1995 - Inmunidad a incremento repentino/rápidas fluctuaciones eléctricas transitorias
EN 61000-4-5:1995 con A1, 1996 - Inmunidad a picos de voltaje o corriente
EN 61000-4-6:1996 - Inmunidad por conducción
EN 61000-4-11:1994 Inmunidad a caídas de voltaje, variaciones y pequeñas interrupciones de voltaje
EN 61000-3-2:1995 CON a1-3:1999 - Emisiones de corriente armónica
EN 61000-3-3:1995 con A1:1998 - Fluctuaciones de voltaje y centelleo
Répond aux normes essentielles des directives suivantes de l'Union européenne en utilisant
les standards normalisés ci-dessous qui expliquent les normes auxquelles répondre :
Directive 89/336/CEE sur la compatibilité électromagnétique
EN 61326:1997 avec A1 :1998 - Matériel électrique destiné à l'étalonnage, au contrôle
et à l'utilisation en laboratoire - Exigences CEM (Immunité industrielle, Émissions de
catégorie A).
EN 61000-4-2:1996 Avec A1, 1998 - Immunité aux décharges électrostatiques
EN 61000-4-3:1997 - Immunité aux champs de radiation
73/23/EEC Directiva de bajo voltaje
EN 61010-1:1993 con A1:1995 Requisitos de seguridad de equipo eléctrico para
medición, control y uso en laboratorio. Parte 1: Requisitos generales
EN 61000-4-4:1995 - Immunité contre les surtensions électriques rapides/ Rafale
EN 61000-4-5:1995 avec A1, 1996 - Immunité contre les surtensions
EN 61000-4-6:1996 - Immunité conduite
EN 61000-4-11:1994 Immunité contre les écarts de tension, interruptions courtes et variations
de tension
EN 61000-3-2:1995 avec A1-3 :1999 - Emissions de courant harmoniques
EN 61000-3-3:1995 avec A1 :1998 - Fluctuations et vacillements de tension
Directive 73/23/CEE sur les basses tensions
EN 61010-1:1993 avec A1 :1995 Normes de sécurité du matériel électrique pour
la mesure, le contrôle et l'utilisation en laboratoire. 1ère partie : Conditions générales
Jim Boigenzahn
Name of Authorized Representative
Winona, Minnesota, USA
Place of Issue
General Manager
Title of Authorized Representative
August 2001
Date of Issue
Signature of Authorized Representative
(2013)
5 I Watlow Series 146 User’s Manual
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Ordering Information
Warranty
The Series 146 is warranted to be free of defects in
material and workmanship for 36 months after delivery
to the first purchaser for use, providing that the unit has
not been misapplied. Since Watlow has no control over its
use or misuse, we cannot guarantee against failure.
Watlow’s obligations hereunder, at Watlow’s option, are
limited to replacement or refund of purchase price of a
unit which upon examination proves to be defective with-
in the warranty period. This warranty does not apply to
damage resulting from transportation, alteration, misuse
or abuse.
(2012)
146 _ - _ _ _ _ - _ _00
Output Type
E
Line Voltage
= Electromechanical relay, 8A, Form C
1
2
3
= 120VÅ
= 230VÅ to 240VÅ
= 24VÅ
Input and Range
Type E
619 = 0 to 799°C (32 to 1470°F)
Type J
601 = 0 to 315°C (32 to 600°F)
602 = 0 to 750°C (32 to 1382°F)
615 = Fixed at 315°C (600°F)
618 = -17 to 93°C (0 to 200°F)
620 = 149 to 427°C (300 to 800°F)
623 = 43 to 54°C (110 to 130°F)
625 = 121 to 221°C (250 to 430°F)
Type K
Returns
• Call or fax Customer Service for a Return Material
Authorization (RMA) number before returning a
product.
603 = 0 to 1250°C (32 to 2282°F)
611 = 0 to 600°C (32 to 1112°F)
626 = 16 to 149°C (60 to 300°F)
627 = 0 to 66°C (32 to 150°F)
628 = -17 to 315°C (0 to 600°F)
Type T
629 = -200 to 350°C (-328 to 662°F)
632 = Fixed at -75°C (-103°F)
RTD
101 = -73 to 600°C (-100 to 1112°F) (100Ω)
104 = -73 to 600°C (-100 to 1112°F) (1000Ω)
105 = 0 to 80°C (32 to 176°F)
106 = Fixed at 200°C (392°F)
107 = Fixed at 350°C (662°F)
108 = Fixed at 110°C (230°F)
109 = Fixed at 150°C (302°F)
110 = Fixed at 120°C (248°F)
111 = Fixed at 250°C (482°F)
Limit Mode
• Put the RMA number on the shipping label, and also a
description of the problem.
• A 20% of net price restocking charge applies to all
standard units returned to stock.
Contact:
• Phone: 507/454-5300
• Fax: 507/452-4507
Technical Support
If you encounter a problem with your Watlow
controller, verify that your wiring is correct for your
specific model number. If the problem persists, an
Application Engineer can discuss your application with
you.
1
2
3
4
= High limit, manual reset on power loss
= Low limit, manual reset on power loss
= High limit, automatic reset on power loss
= Low limit, automatic reset on power loss
Before calling, please have the complete model
number and user’s manual available. You can get
technical support by dialing 507/454-5300, 7 a.m. to 7
p.m. Central Standard Time. The Series 146 User’s
Manual is copyrighted by Watlow Inc., © 2001, with all
rights reserved. (1965)
Remote Options
0
N
S
P
= Regulating control, integral setpot
= Regulating control, no setpot, customer provided
= Regulating control, remote setpot with remote reset
= Regulating control, remote setpot
Note: User documentation may be available in French, German, Spanish,
Italian, and Dutch, as well as English. Check Watlow’s website
NOTE: Electromechanical relays are typically warranted for 100,000 closures only.
Troubleshooting
Problem
Probable Cause
Action
The load will not turn on.
An open sensor
Repair or replace.
The load circuit is open.
Check the fuses, circuit breakers, load and wiring.
The ac input is not connected or
is connected improperly.
Check the ac input connections. If not present,
connect per Power Wiring, page 3.
The load will not turn off.
The polarity is reversed on the
thermocouple.
Connect per Input Wiring, page 4.
A faulty unit.
Remove power to the controller and the controller
from the system. Apply power to the system with
the controller removed. If the load turns off,
return the controller to the factory. If the load
remains on, there are other problems in the
system that must be resolved. Consult the factory.
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