Watlow Electric Thermostat SERIES146 User Manual

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, 100@ 0°C calibrated for 0.003850/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.  
 
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 0.003850/°C curve.  
3 I Watlow Series 146 User’s Manual  
 
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  
 
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  
 
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) (100)  
104 = -73 to 600°C (-100 to 1112°F) (1000)  
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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