Red Lion TLA - Manual

1
MODEL TLA - TEMPERATURE LIMIT ALARM
 FM APPROVED, UL RECOGNIZED
 2-LINE BY 4-DIGIT DISPLAY
 EXCEED, OUTPUT, AND ALARM ANNUNCIATORS
 FOUR BUTTON SILICONE RUBBER KEYPAD
 THERMOCOUPLE OR RTD SENSOR INPUT
 REMOTE RESET INPUT
 MAIN LIMIT OUTPUT: 5A RELAY. SELECTABLE FOR HIGH OR
LOW TRIP ACTIVATION
 OPTIONAL ALARMS: 5A RELAY(S)
 OPTIONAL NEMA 4X/IP65 SEALED FRONT BEZEL
 PARAMETER SECURITY VIA PROGRAMMABLE LOCKOUTS
GENERAL DESCRIPTION
The TLA is a Factory Mutual approved temperature limit alarm, intended to
provide an independent shutdown for thermal processes. The TLA accepts
signals from a variety of temperature sensors (thermocouple or RTD elements),
and its comprehensive programming allows it to meet a wide variety of
application requirements.
Dual 4-digit displays allow viewing of the process temperature and limit
setpoint simultaneously. Front panel indicators inform the operator of the
process and output status. The main limit output and alarm outputs are field
replaceable.
The limit output is selectable for high or low trip activation. If the process
temperature goes above the limit setpoint for a high trip, or below the limit
setpoint for a low trip, the limit relay will de-energize to initiate a process
shutdown. The limit output cannot be reset until the process temperature returns
to the proper operating range; manual reset is required (local or remote). Sensor
failure will initiate a process shutdown.
Relay alarm(s) can be configured to activate according to a variety of actions
(Absolute HI or LO, Deviation HI or LO, and Band IN or OUT) with adjustable
hysteresis. A standby feature suppresses the alarm during power-up until the
process stabilizes outside the alarm region.
The unit is constructed of a lightweight, high impact plastic case with a tinted
front panel. The front panel meets NEMA 4X/IP65 specifications when properly
installed. Multiple units can be stacked horizontally or vertically. Modern
surface-mount technology, extensive testing, plus high immunity to noise
interference makes the TLA extremely reliable in industrial environments.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use the TLA to directly command motors, valves, or other actuators
not equipped with safeguards. To do so can be potentially harmful to persons or
equipment in the event of a fault to the unit.
-0.0
+0.6
-0.000
+0.024
-0.0
+0.6
-0.000
+0.024
(45 )
1.772
(45 )
1.772
(9.4)
0.37
4.17 (105.9)
1.95
1.95 (49.5)
(49.5)
EX OUT A1 A2
P R
DIMENSIONS In inches (mm)
FM
APPROVED
PROCESS CONTROL EQUIPMENT
Bulletin No. TLA-B
Drawing No. LP0553
Released 06/13
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
PANEL CUT-OUT
UL Recognized Component,
File # E156876
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.