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Watlow Controls 

EHG CL User’s Guide

Declaration of Conformity

Series EHG

®

 CL

WATLOW

     an 

ISO 9001

 approved facility since 1996. 

1241 Bundy Blvd.  
Winona, MN 55987 USA 

 

Declares that the following product: 
Designation: 

Series EHG

®

 CL 

Model Numbers: 

EHG2-AAAA- additional number or letters. 

Classification: 

Electronic Thermostat with Integrated Temperature Limiter Protective Control, 
Control Relay = 2CK, Limit Relay = 2BJ  
Installation Category II, Pollution degree 2, Software Class B 

Rated Supply Source: 

100 to 240 V~ (ac), 50 or 60 Hz 

IP Code 

IP20 

Rated Power: 

5 VA Unit power, 10 A Resistive Heater Load 

 

Meets the essential requirements of the following European Union Directives by using the relevant standards 
show below to indicate compliance. 

 

2004/108/EC Electromagnetic Compatibility Directive 

EN 60730-1 
EN 60730-2-9 

2010 
2010 

Edition 4 

Automatic electrical controls for household and similar use 
– Temperature Sensing Controls, Class B Emissions 

EN 61000-4-2 

2008 

 

Electrostatic Discharge Immunity 

EN 61000-4-3 

2010 

 

Radiated Field Immunity 

EN 61000-4-4 

2011 

 

Electrical Fast-Transient / Burst Immunity 

EN 61000-4-5 

2006 

 

Surge Immunity 

EN 61000-4-6 

2008 

 

Conducted Immunity 

EN 61000-4-8 

2009 

 

Power frequency magnetic field immunity 

EN 61000-4-11 

2004 

 

Voltage Dips, Short Interruptions and Voltage Variations 
Immunity 

EN 61000-4-28 

2009 

 

Variation of power frequency immunity – Level 2 

EN 61000-3-2 

2006 

 

Harmonic Current Emissions 

EN 61000-3-3 

2005 

 

Voltage Fluctuations and Flicker 

SEMI F47 

2000 

 

Specification for Semiconductor Processing Equipment Voltage 
Sag Immunity – Figure R1-1 

 

2006/95/EC Low-Voltage Directive 

EN 61010-1 

2010 

Edition 3 

Safety Requirements of electrical equipment for measure-
ment, control and laboratory use. Part 1: General 
requirements 

EN 60730-1 
EN 60730-2-9 

2010 
2011 

Edition 4 
Edition 3.1 

Automatic electrical controls for household and similar use 
– Temperature Sensing Controls 

UL 1998 

2008 

ED.2 

Software in programmable components. 

 

Compliant with 2002/95/EC RoHS Directive 

Per 2002/96/EC WEEE Directive 

 Please Recycle Properly 

Joe M. Millanes 

 

Winona, Minnesota, USA 

Name of Authorized Representative 

 

Place of Issue 

 
Directory of Operations 

 

Sept. 2012 

Title of Authorized Representative 

 

Date of Issue 

 
 
 
Signature of Authorized Representative 

Summary of Contents for EHG CLseries

Page 1: ...erature controller and safety limit Process temperature output 10 amp NO ARC relay Safety limit 10 amp relay On off and PID temperature control algorithm Up graded via communications to PID algorithm...

Page 2: ...to 0 C 32 F to SLA setting 150 C 302 F 34 unsigned integer RWE No Dis play Heat Output Power Read via Modbus communications the present heat output power level 0 to 100 0 22 unsigned integer R No Dis...

Page 3: ...19 200 16 384 38 400 17 9 600 16 unsigned integer RWE tU tU Temperature Units Select the temperature scale F F 4 C C 5 C 17 unsigned integer RWE rpp rPP Restore Programmed Parameters Restore factory...

Page 4: ...on on off off Ambient Alarm Abt 85 C on on off off Health Check Error Normal Operating Range Limit High Set Point SLA Closed Loop Set Point Closed Loop Set Point Temperature Alarm Hysteresis Alarm Hys...

Page 5: ...1 507 494 5656 E12 CPU Clock Error Clock frequency is 5 MHz or 13 1 MHz Contact Technical Support at 1 507 494 5656 E13 Stack Over ow Stack has over owed Contact Technical Support at 1 507 494 5656 E1...

Page 6: ...l is cleared when the process value is outside of the proportional band Integral Int is measured in minutes per repeat A low integral value causes a fast integrating action Proportional plus Integral...

Page 7: ...r 4800 0021 With the control facing you this connector is on the right side L1 Switched black L2 white yellow red yellow red 1 3 4 5 7 8 6 2 Heater Limit Thermocouple Process Thermo couple Thermocoupl...

Page 8: ...parts which upon examination prove to be defective within the warranty period specified This warranty does not apply to damage resulting from transportation alteration misuse or abuse WARNING To avoi...

Page 9: ...nity EN 61000 4 4 2011 Electrical Fast Transient Burst Immunity EN 61000 4 5 2006 Surge Immunity EN 61000 4 6 2008 Conducted Immunity EN 61000 4 8 2009 Power frequency magnetic field immunity EN 61000...

Page 10: ...ebsite www watlow co uk From outside The United Kingdom Tel 44 115 964 0777 Fax 44 115 964 0071 Asia and Paci c Watlow Singapore Pte Ltd 16 Ayer Rajah Crescent 06 03 04 Singapore 139965 Tel 65 6773 94...

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