Watlow TLM-8 - Manual (Page 5)

WATLOW TLM-8 User’s Guide 5
Application Example
In the following example, a TLM-8 monitors tempera-
tures and provides independent safety shutdown, alarm
annunciation and acknowledgment. A multi-loop con-
troller, CLS200 or MLS300, is used for primary control.
The TLM-8 has its own set of thermocouples to monitor
temperatures independent of the controller. If a tem-
perature exceeds a trip point configured in the TLM-
8, then power to the heater is turned off by a TLM-8
controlled relay, and the System OK indicator light is
turned off. After the temperature drops and the cause
of the alarm has been corrected, an operator acknowl-
edges the alarm. The primary controller resumes con-
trol of the loop(s).
CLS/MLS Multi-Loop
Temperature Controller
TLM-8 Thermal
Limit Monitor
DC Power
Supply
DC Power
Supply
Solid-state
Relay
relay contacts
(normally open)
thermocouples
AC
heater
TST
ACK
relay
coil
System OK
indicator light
+ -
Example Schematic
NOTE: Relay contacts are illustrated in the unpowered or
alarmed state.
Declaration of Conformity
Series TLM-8
Watlow Winona, Inc.
1241 Bundy Blvd.
Winona, MN 55987 USA
Declares that the following product:
Designation: Series TLM-8
Model Numbers: TLM (C, E or P)(0 – 6)(0 or 1)(0 – 9)(additional letters or numbers indicating setpoint tempera-
tures.
Classification: Temperature control, Installation Category II, Pollution degree 2
Rated Voltage and Power: Control 12 to 24 V Î (dc) 400 mA maximum
Note: Use of external CE approved ELV (UL Class 2) power supply required.*
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 61326 1997 A1:1998
A2:2002
A3:2004 Electrical equipment for measurement, control and laboratory use – EMC
requirements (Industrial Immunity, Class B Emissions).
EN 61000-4-2 1995 A2, 2001 Electrostatic Discharge Immunity
EN 61000-4-3 2002 Radiated Field Immunity
EN 61000-4-4 2004 Electrical Fast-Transient / Burst Immunity
EN 61000-4-5* 1995 A2, 2001 Surge Immunity
EN 61000-4-6 1996 A3, 2005 Conducted Immunity
EN 61000-4-11* 2004 Voltage Dips, Short Interruptions and Voltage Variations Immunity
EN 61000-3-2* 2001 ED.2. Harmonic Current Emissions
EN 61000-3-3* 1995 A2:2002 Voltage Fluctuations and Flicker
73/23/EEC Low-Voltage Directive
EN 61010-1 2001 Safety Requirements of electrical equipment for measurement, control and laboratory use.
Part 1: General requirements
2002/96/EC WEEE Directive Equipment Requires Recycling
Raymond D. Feller III Winona, Minnesota, USA
Name of Authorized Representative Place of Issue
General Manager August 2007
Title of Authorized Representative Date of Issue
Signature of Authorized Representative
Declaration of Conformity