Red Lion TLA User Manual

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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

Bulletin No. TLA-B

Drawing No. LP0553

Released 06/13

FM

APPROVED

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.

UL Recognized Component,
File # E156876

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.

CAUTION: Risk of Danger.

Read complete instructions prior to

installation and operation of the unit.

CAUTION: Risk of electric shock.

DIMENSIONS In inches (mm)

1.95

EX OUTA1A2

PR

1.95 (49.5)

(49.5)

0.37
(9.4)

4.17 (105.9)

1

PANEL CUT-OUT

1.772

1.772

+0.024

-0.000

+0.6

(45 )

-0.0

+0.024

-0.000

+0.6

(45 )

-0.0

GENERAL SPECIFICATIONS

1. DISPLAY: 2 line by 4-digit LED
Upper (Main) Display: 0.4" (10.2 mm) high red LED
Lower (Secondary) Display: 0.3" (7.6 mm) high green LED
Display Messages:

“OLOL” - Appears when measurement exceeds + sensor range.
“ULUL” - Appears when measurement exceeds - sensor range.
“OPEN” - Appears when open sensor is detected.
“SHrt” - Appears when shorted sensor is detected (RTD only)
“...” - Appears when display values exceed + display range.
“-..” - Appears when display values exceed - display range.

LED Status Annunciators:

EX - Temperature exceeds limit setpoint
OUT - Limit output is de-energized
A1 - Alarm #1 is active
A2 - Alarm #2 is active

2. POWER:

Line Voltage Models: 85 to 250 VAC, 50/60 Hz, 8 VA.
Low Voltage Models:

DC Power: 18 to 36 VDC, 7 W.
AC Power: 24 VAC +/-10%, 50/60 Hz, 9 VA

3. CONTROLS: Four rubber push buttons: R, P, Up, Down

4. MEMORY: Nonvolatile E2PROM retains all programmable parameters and
values.

5. ENVIRONMENTAL CONDITIONS:

Operating Range: FM rated @ 0 to 65°C, UL rated @ 0 to 55°C
Storage Range: -40 to 80°C
Operating and Storage Humidity: 85% max. relative humidity (non-

condensing) from 0°C to 65°C.

Vibration to IEC 68-2-6: Operational 5 to 150 Hz, 2 g.
Shock to IEC 68-2-27: Operational 20 g (10 g relay).
Altitude: Up to 2000 meters

6. ISOLATION BREAKDOWN RATINGS:
AC line with respect to all inputs and outputs: 2300 V for 1 minute (250

V working)

Relay contacts to all other inputs and outputs: 2300 VAC
DC Power with respect to sensor input: 50 V working (500 V for 1 minute)

7. CERTIFICATIONS AND COMPLIANCES:
CE Approved

EN 61326-1 Immunity to Industrial Locations
Emission CISPR 11 Class A
IEC/EN 61010-1

RoHS Compliant
Factory Mutual (FM) Listed: File #3014646
UL Recognized Component: File #E156876
Type 4X Enclosure rating (Face only)
IP65 Enclosure rating (Face only)
IP20 Enclosure rating (Rear of unit)

Refer to EMC Installation Guidelines section of the bulletin for additional

information.

8. CONNECTION: Wire clamping screw terminals
Wire Gage Capacity: Two 14 AWG (2.55 mm), four 18 AWG (1.02 mm), or

four 20 AWG (0.61 mm).

Terminal Torque: 1.0Nm (8.9 in-lbs.).

1.4Nm (12.4 in-lbs.) max.

9. CONSTRUCTION: Black plastic alloy case and collar style panel latch.
Panel latch can be installed for vertical or horizontal instrument stacking.
One piece tinted plastic bezel. Bezel assembly with circuit boards can be
removed from the case to change the output board without removing the case
from the panel or disconnecting wiring. Unit meets NEMA 4X/IP65
requirements for indoor use, when properly installed. Flame resistant.
Installation Category II, Pollution Degree 2.

10. WEIGHT: 0.38 lbs (0.17 kgs)

INPUT SPECIFICATIONS

1. SENSOR INPUT:
Sample Period: 100 msec
Step Response Time: Less than 300 msec typ., 400 msec max. (to within

99% of final value)

Normal Mode Rejection: Greater than 40 dB @ 50/60 Hz
Common Mode Rejection: Greater than 120 dB, DC to 60 Hz
Overvoltage Protection: Input overload 120 VAC for 15 seconds max.

2. Failed Sensor Response:
Main Output: Sensor failure will initiate a process shutdown
Display: “OPEN”
Alarms: Upscale

3. INDICATION ACCURACY: ±(0.3% of Span +1°C) at 23°C ambient after
20 minute warm-up. (Includes NIST conformity, cold junction effect, A/D
conversion errors and linearization conformity.
Span Drift (maximum): 130 PPM/°C

4. RTD INPUT: 2 or 3 wire, 100 Ω platinum, alpha = 0.00385 (DIN 43760),
alpha = 0.0039162

Excitation: 150 µA typical
Resolution: 1 or 0.1 degree
Lead Resistance: 15 Ω max. per input lead

RTD TYPE RANGE

385

392

OHMS 2.0 to 320.0

-200 to +600°C

-328 to +1100°F

-200 to +600°C

-328 to +1100°F

5. THERMOCOUPLE INPUT:
Types: T, E, J, K, R, S, B, N, Linear mV, software selectable
Input Impedance: 20 MΩ all types
Lead resistance effect: 0.25 µV/Ω
Cold junction compensation: Less than ±1°C typ., (±1.5°C max), error over

0 to 65°C max. ambient temperature range. Defeated for Linear mV
indication mode.

Resolution: 1° for all types, or 0.1° for T, E, J, K, and N onlY.

WIRE COLOR

blue (+)

red (-)

violet (+)

red (-)

white (+)

red (-)

yellow (+)

red (-)

black (+)

red (-)

black (+)

red (-)

grey (+)

red (-)

orange (+)

red (-)

BS 1843ANSI

white (+)

blue (-)

brown (+)

blue (-)

yellow (+)

blue (-)

brown (+)

blue (-)

white (+)

blue (-)

white (+)

blue (-)

no standard

orange (+)

blue (-)

no standardno standard-5.00 to +56.00

T

E

J

K

R

S

B

N

mV

RANGETC TYPE

-200 to +400°C

-328 to +752°F

-200 to +750°C

-328 to +1382°F

-200 to +760°C

-328 to 1400°F

-200 to +1250°C

-328 to +2282°F
0 to 1768°C

+32 to +3214°F

0 to 1768°C

+32 to 3214°F

+149 to +1820°C
+300 to +3308°F

-200 to +1300°C

-328 to +2372°F

6. REMOTE RESET INPUT: Internally pulled up to +5 VDC (1MΩ).
VIL: 0.85 V max., VIH: 3.65 V min., VIN MAX: 5.25 VDC, I

: 1µA max.

OFF

2

OUTPUT SPECIFICATIONS

1. LIMIT AND ALARM OUTPUT RELAYS:
Contact Rating: 5 A @ 250 VAC or 30 VDC (resistive load).
Life Expectancy: 100,000 cycles at max. load rating. (Decreasing load

increases life expectancy.)

2. LIMIT OUTPUT: TLA21000: Form-C relay; TLA11100: Form-A relay.
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).
Annunciators:

“EX” - Lit when the process temperature exceeds the limit setpoint.
“OUT” - Lit when the limit output is de-energized.

ORDERING INFORMATION

85 to 250 VAC

3. ALARM OUTPUTS (Optional): One or two Form-A relays.
Modes:

Absolute High Acting Absolute Low Acting
Deviation High Acting Deviation Low Acting
Inside Band Acting Outside Band Acting

Reset Action: Programmable; automatic or latched. Latched alarms can be

reset regardless of limit exceed condition.

Standby Mode: Programmable; enable or disable.
Hysteresis: Programmable.
Annunciator: “A1” and “A2” programmable for normal or reverse acting.

REPLACEMENT

OUTPUT BOARD

RBDLA210

RBD48111

18 to 36 VDC / 24 VAC

REPLACEMENT

OUTPUT BOARD

RBDLA210

RBD48111

EMC INSTALLATION GUIDELINES

Although Red Lion Controls Products are designed with a high degree of
immunity to Electromagnetic Interference (EMI), proper installation and wiring
methods must be followed to ensure compatibility in each application. The type
of the electrical noise, source or coupling method into a unit may be different
for various installations. Cable length, routing, and shield termination are very
important and can mean the difference between a successful or troublesome
installation. Listed are some EMI guidelines for a successful installation in an
industrial environment.

1. A unit should be mounted in a metal enclosure, which is properly connected

to protective earth.

2. Use shielded cables for all Signal and Control inputs. The shield connection

should be made as short as possible. The connection point for the shield

depends somewhat upon the application. Listed below are the recommended

methods of connecting the shield, in order of their effectiveness.

a. Connect the shield to earth ground (protective earth) at one end where the

unit is mounted.

b. Connect the shield to earth ground at both ends of the cable, usually when

the noise source frequency is over 1 MHz.

3. Never run Signal or Control cables in the same conduit or raceway with AC

power lines, conductors, feeding motors, solenoids, SCR controls, and

heaters, etc. The cables should be run through metal conduit that is properly

grounded. This is especially useful in applications where cable runs are long

and portable two-way radios are used in close proximity or if the installation

is near a commercial radio transmitter. Also, Signal or Control cables within

an enclosure should be routed as far away as possible from contactors,

control relays, transformers, and other noisy components.

4. Long cable runs are more susceptible to EMI pickup than short cable runs.

5. In extremely high EMI environments, the use of external EMI suppression

devices such as Ferrite Suppression Cores for signal and control cables is

effective. The following EMI suppression devices (or equivalent) are
recommended:

6. To protect relay contacts that control inductive loads and to minimize radiated
and conducted noise (EMI), some type of contact protection network is
normally installed across the load, the contacts or both. The most effective
location is across the load.
a. Using a snubber, which is a resistor-capacitor (RC) network or metal oxide

b. If a DC inductive load (such as a DC relay coil) is controlled by a transistor

7. Care should be taken when connecting input and output devices to the
instrument. When a separate input and output common is provided, they
should not be mixed. Therefore a sensor common should NOT be connected
to an output common. This would cause EMI on the sensitive input common,
which could affect the instrument’s operation.

Visit RLC’s web site at http://www.redlion.net/Support/InstallationConsiderations.

html for more information on EMI guidelines, Safety and CE issues as they
relate to Red Lion Controls products.

PART NUMBERSALARM 2 OUTPUTALARM 1 OUTPUTLIMIT OUTPUT

TLA21000Form-A RelayForm-C Relay

TLA11100Form-A RelayForm-A RelayForm-A Relay

PART NUMBERSALARM 2 OUTPUTALARM 1 OUTPUTLIMIT OUTPUT

TLA21010Form-A RelayForm-C Relay

TLA11110Form-A RelayForm-A RelayForm-A Relay

Fair-Rite part number 0443167251 (RLC part number FCOR0000)
Line Filters for input power cables:

Schaffner # FN2010-1/07 (Red Lion Controls # LFIL0000)

varistor (MOV) across an AC inductive load is very effective at reducing
EMI and increasing relay contact life.

switch, care must be taken not to exceed the breakdown voltage of the
transistor when the load is switched. One of the most effective ways is to
place a diode across the inductive load. Most RLC products with solid
state outputs have internal zener diode protection. However external diode
protection at the load is always a good design practice to limit EMI.
Although the use of a snubber or varistor could be used.
RLC part numbers: Snubber: SNUB0000
Varistor: ILS11500 or ILS23000

3

1.96 (49.8)

1.0 INSTALLING THE TLA

The TLA meets NEMA 4X/IP65 requirements for indoor use to provide a
watertight seal in steel panels with a minimum thickness of 0.09 inch, or
aluminum panels with a minimum thickness of 0.12 inch. The units are intended
to be mounted into an enclosed panel. It is designed so that the units can be
stacked horizontally or vertically. The bezel assembly MUST be in place during
installation of the unit.

Instructions:

1. Prepare the panel cutout to the dimensions.

2. Remove the panel latch from the unit. Discard the cardboard sleeve.

3. Carefully remove the center section of the panel gasket and discard. Slide
the panel gasket over the unit from the rear, seating it against the lip at the
front of the case.

4. Insert the unit into the panel cutout. While holding the unit in place, push the
panel latch over the rear of the unit, engaging the tabs of the panel latch in
the farthest forward slot possible.

5. To achieve a proper seal, tighten the
panel latch screws evenly until the
unit is snug in the panel, torquing
the screws to approximately 7 in-lbs
(79 N-cm). Over tightening can
result in distortion of the panel, and
reduce the effectiveness of the seal.

Note: The installation location of the

TLA is important. Be sure to keep it
away from heat sources (ovens,
furnaces, etc.), and away from
direct contact with caustic vapors,
oils, steam, or any other process
byproducts in which exposure may
affect proper operation.

1.772

1.772

+0.024

-0.000

+0.6

(45 )

-0.0

+0.024

-0.000

+0.6

(45 )

-0.0

2.39 (60.7)
MAX.

13 14

1

2

3

4

5

PANEL LATCH INSTALLED FOR

VERTICAL UNIT STACKING

PANEL

MOUNTING

SCREW

LATCHING

TABS

6

7

8

9

10

1211

PANEL

1.96 (49.8)
MAX.

PANEL LATCH

1.96 (49.8)
MAX.

13 14

1

2

3

4

5

PANEL LATCH INSTALLED FOR
HORIZONTAL UNIT STACKING

1211

PANEL GASKET

LATCHING

SLOTS

6

7

8

9

10

2.39 (60.7)

BEZEL

MAX.

Multiple Unit Stacking

The TLA is designed for close spacing of multiple units. Units can be stacked
either horizontally or vertically. For vertical stacking, install the panel latch with
the screws to the sides of the unit. For horizontal stacking, the panel latch
screws should be at the top and bottom of the unit. The minimum spacing from
center line to center line of units is 1.96" (49.8 mm). This spacing is the same
for vertical or horizontal stacking.

MIN.

STANDARD

PANEL

CUT-OUT

IF NEMA 4 IS NOT REQUIRED,

THIS PANEL MATERIAL MAY BE REMOVED.

Note: When stacking units, provide adequate panel ventilation to ensure that

the maximum operating temperature range is not exceeded.

Caution: Disconnect power to the unit and to the output control
circuits to eliminate the potential shock hazard when removing the
bezel assembly.

Unit Removal Procedure

To remove a unit from the panel, first loosen the panel latch screws. Insert
flat blade screwdrivers between the latch and the case on either side of the unit,
so that the latches disengage from the grooves in the case. Push the unit through
the panel from the rear.

Removing Bezel Assembly

The bezel assembly must be removed from the case to replace the output
board. To remove the bezel assembly, insert a flat blade screwdriver into the pry

PANEL

CASE

LIP

EB0783

PRY

SLOT

R P

BEZEL

slot on either side of the unit. Twist the screwdriver handle until the unit is
ejected enough to allow removal.

Caution: The bezel assembly contains electronic circuits that can be damaged

by static electricity. Before removing the assembly, discharge static charge on
your body by touching an earth ground point. It is also important that the
bezel assembly be handled only by the bezel itself. Additionally, if it is
necessary to handle a circuit board, be certain that hands are free from dirt,
oil, etc., to avoid circuit contamination that may lead to malfunction. If it
becomes necessary to ship the unit for repairs, place the unit in its case
before shipping.

Installing Bezel Assembly

To install the bezel assembly, insert the assembly into the case until the bezel
is fully seated against the lip of the case. Properly installing the bezel assembly
is necessary for watertight sealing.

4

2.0 WIRING THE TLA

After the unit has been mechanically mounted, it is ready to be wired. All
wiring connections are made to the rear screw terminals. When wiring the unit,
use the numbers on the label and those embossed on the back of the case, to
identify the position number with the proper function.

All conductors should meet voltage and current ratings for each terminal.
Also cabling should conform to appropriate standards of good installation, local
codes and regulations. It is recommended that power supplied to the unit (AC
or DC) be protected by a fuse or circuit breaker. Strip the wire, leaving
approximately 1/4" (6 mm) bare wire exposed (stranded wires should be tinned
with solder). Insert the wire under the clamping washer and tighten the screw
until the wire is clamped tightly.

Caution: Unused terminals are NOT to be used as tie points. Damage to the TLA

may result if these terminals are used.

POWER WIRING

AC Power

Primary AC power is connected to terminals #11 and #12, labeled AC. To
reduce the chance of noise spikes entering the AC line and affecting the TLA,
an AC feed separate from that of the load should be used to power the TLA. Be
certain that the AC power to the TLA is relatively “clean” and within the
variation limit. Connecting power from heavily loaded circuits or circuits that
also power loads that cycle on and off (contacts, relays, motors, etc.), should be
avoided.

DC Power

DC Power (18 to 36 VDC) is connected to terminals #11 and #12 labeled
DC+ and DC- respectively.

CAUTION: Observe proper polarity when connecting DC voltages.
Damage to the unit may occur if polarity is reversed.

SIGNAL WIRING

Thermocouple

When connecting the thermocouple, be certain that the connections are clean
and tight. If the thermocouple probe cannot be connected directly to the TLA,
thermocouple wire or thermocouple extension-grade wire must be used to
extend the connection points (copper wire does not work). Always refer to the
thermocouple manufacturer’s recommendations for mounting, temperature
range, shielding, etc. For multi-probe temperature averaging applications, two
or more thermocouple probes may be connected to the TLA (always use the
same type). Paralleling a single thermocouple to more than one TLA is not
recommended. Generally, the red wire from the thermocouple is negative and
connected to the TLA’s common.

USER INPUT

RTD

When connecting the RTD, be certain that the connections are clean and
tight. RTD sensors have a higher degree of accuracy and stability than
thermocouple sensors. Most RTD sensors available are the three wire type. The
third wire is a sense lead for canceling the effects of lead resistance of the probe.
Four wire RTD elements may be used by leaving one of the sense leads
disconnected. Two wire RTD sensors may be used in either of two ways:
A) Attach the RTD to terminals #8 and #10. Install a copper sense wire of the

same wire gauge as the RTD leads. Attach one end of the wire at the probe

and the other end to terminal #9. Complete lead wire compensation is

obtained. This is the preferred method.
B) Attach the RTD to terminals #8 and #10. Install a shorting wire between

terminals #9 and #10. A temperature offset error of 2.5°C/ohm of lead

resistance exists. The error may be compensated by programming a

temperature offset.

Note: With extended cable runs, be sure the lead resistance is less than 15 ohms/

lead.

USER INPUT

COMM.

RTD

POWER

RTD Connection

RTD
PROBE

RELAY CONNECTIONS

To prolong contact life and suppress electrical noise interference due to the
switching of inductive loads, it is good installation practice to install a snubber
across the contactor. Follow the manufacturer's instructions for installation.

5 AMPS

AT

250 VAC

CONTROLLER

N.C.

N.O.

*

*

*

LOAD FUSE

COMM.

TC

NO
CONNECTION

POWER

Thermocouple Connection

AC/DC

-

Note: Snubber leakage current can cause some electromechanical devices to be

+

held ON.

*Terminal numbers are model dependent. See Terminal Configurations for

description.

POWER

REMOTE RESET WIRING

The use of shielded cable is recommended. Follow the EMC installation
guidelines for shield connection.

Terminal #6 is the Remote Reset. Any form of mechanical switch may be
connected to terminal #6 (REMOTE RESET) and terminal #8 (COMM.).
Sinking open collector logic with less than 0.7 V saturation and off-state leakage
current of less than 1 µA may also be used.

5

3.0 FRONT PANEL DESCRIPTION

SECONDARY DISPLAY-

DISPLAYS THE LIMIT SETPOINT.
ALSO DISPLAYS MNEMONIC OR

NUMERIC VALUE WHEN

MODIFYING A PARAMETER.

EX OUTA1A2

ILLUMINATES WHEN THE

PROCESS TEMPERATURE

EXCEEDS THE LIMIT

SETPOINT.

The front panel bezel material is flame and scratch resistant, tinted plastic that
meets NEMA 4X/IP65 requirements, when properly installed. Continuous
exposure to direct sunlight may accelerate the aging process of the bezel. The
bezel should be cleaned only with a soft cloth and neutral soap product. Do NOT
use solvents. There are two 4-digit LED displays, a red upper Main Display and
a lower green Secondary Display.

There are up to four panel annunciators, with red backlighting, that illuminate
to inform the operator of the TLA and output status. See the front panel diagram
for a description of the annunciators. Four front panel buttons are used to access
different modes and parameters. The following is a description of each button.

Do NOT use tools of any kind (screwdrivers, pens, pencils, etc) to operate the
keypad of this unit.

PR

Button Functions

R - The Reset (R) button is used to reset the limit and alarm relays. The limit output

cannot be reset until the process temperature returns to the proper operating

range. Latched alarms can be reset regardless of limit exceed condition.
P - The Parameter (P) button is used to access programming, enter the change,

and scroll through the available parameters in any mode.
UP, DN - The Up/Down buttons are used to modify parameters.

TLA POWER-UP

Upon applying power, the TLA delays input indication and control action for
five seconds to perform several self-diagnostic tests and to display basic TLA
information. Initially, the TLA illuminates both displays and all annunciators to
verify that all display elements are functioning. The TLA then displays the
programmed input sensor type in the main (top) display and the revision number
of the TLA’s operating system in the secondary (bottom) display. The TLA

MAIN DISPLAY-

DISPLAYS THE PROCESS TEMPERATURE.
ALSO DISPLAYS MNEMONIC OF SELECTED
PARAMETER IN A CONFIGURATION MODULE.

ILLUMINATES WHEN ALARM 2 IS ON.

ILLUMINATES WHEN ALARM 1 IS ON.

ILLUMINATES WHEN THE LIMIT OUTPUT IS DE-ENERGIZED.

checks for correct internal operation and displays an error message (E-xx) if an
internal fault is detected. (See the Troubleshooting section for further
information.)

Upon completion of this sequence, the TLA begins displaying the input value

and setpoint, and updates the outputs based upon this condition.

TLA CONFIGURATION OVERVIEW

The TLA is programmed with certain parameter settings from the factory.
Factory settings are listed in parentheses in the various Configuration of
Parameters tables. In many cases, these settings must be changed to the
particulars of the application before proper operation can be started.

The TLA is typically in the Normal Display Mode. In this mode, the process
temperature is displayed in the main (top) display, and the limit setpoint is
displayed in the secondary (bottom) display. When changes to the parameter
configurations are needed, the P button is pressed, and the TLA will enter into
the Parameter Mode.

PARAMETER CONFIGURATION BASIC STARTUP

For basic start-up, it is important to verify or change Input Parameter Module
(1-IN) parameters tYPE and SCAL, and Output Parameter Module (2-OP)
parameter LiAC (Limit Trip Action). For alarm set-up, it is important to verify
or change Alarms Parameter Module (4-AL) parameters ACt1, AL-1, ACt2, and
AL-2.

If the above Input parameters or the input wiring connections are not correct,
then the main (top) display may display an error message or incorrect value.
Verify the input programming and wiring. (If incorrect display continues, refer
to the Troubleshooting section.) All other parameter configurations are important
but will not prevent the TLA from showing a correct display.

4.0 PARAMETER MODE

The Parameter Mode is accessed by pressing the P Button from the
Normal Display Mode. While in the Parameter Mode, the temperature is
displayed in the main (top) display, and the parameter is displayed in the
secondary (bottom) display. The correct password must be entered before any
parameters can be accessed. To modify values, use the UP or DOWN button
while the parameter is displayed. Use the P button to accept the new value, and
to scroll through the parameters. The TLA will automatically return to the normal
display mode if no action is taken. The TLA responds to the new values

Parameter Mode Reference Table

DISPLAY PARAMETER RANGE DESCRIPTION

PASS

SP

AL-1 *
AL-2 *

CNFP

End

* Model Number Dependent.

Password to access parameters 0 to 250 If an incorrect value is entered, the TLA will display “End”

Limit setpoint -999 to 9999 Range limited by SPLO & SPHI.

Alarm #1 -999 to 9999

Alarm #2 -999 to 9999

Configuration parameter modules

End of Parameter Mode

“Up” button: enter

configuration modules.

immediately, but the change is not committed to non-volatile memory until the
TLA is returned to the Normal Display Mode. If power loss occurs before
returning to the normal display mode, the new values must be re-entered.

To gain access to the Configuration Parameter Modules continue to CNFP
and press the UP button. These modules allow access to the fundamental set-up
parameters of the TLA. If the setpoint or alarm values are modified, the CNFP
step will be skipped.

momentarily, and then return to the normal display mode. The
default password is 10. The wildcard password is 222 (in case the
password is forgotten).

The Alarm parameters can be independently locked out from
appearing. See Configuration Module 3, Parameter Lock-outs.

These modules allow access to the fundamental set-up parameters
of the TLA. The modules are grouped into related
programming steps, such as inputs, outputs, alarms, etc. Upon
completion of each module, the program returns to “CNFP”.

When the parameter list has been scrolled through, the TLA
will display “End” momentarily, and then return to the normal
display mode.

6

CONFIGURATION PARAMETER MODULES

The Configuration Parameter modules are accessed by pressing the UP button
from CNFP in the Parameter Mode. The UP or DOWN buttons can be pressed to
move to the desired Parameter Module. The P button is then pressed to enter into
that module. The main (top) display will be the parameter, and the secondary
(bottom) display will be the parameter value. The UP or DOWN buttons are used
to modify the desired parameter value, and the P button enters the new value, and
moves to the next parameter. The TLA responds to the new values after the

P button is pressed, however, the change is not committed to permanent memory
until the TLA is returned to the Normal Display Mode. If power loss occurs before
returning to the Normal Display Mode, the new values must be entered again. At
the end of each module, the TLA will go back to CNFP. Other Parameter Modules
can be accessed by pressing the UP or DOWN buttons, or pressing P will return
to the Normal Display Mode.

Parameters that are model number, or program dependent will only be

displayed when the appropriate options are installed or programmed.

CONFIGURE MODULE 1 - INPUT PARAMETERS (1-IN)

DISPLAY PARAMETER

tYPE

SCAL

dCPt

FLtr

SHFt

SPLO

SPHI

Input Type

Temperature Scale

Temperature Resolution

Digital Input Filtering and
Display Update

Input Signal Shift
(correction offset)

Limit Setpoint Lower Limit

Limit Setpoint Upper Limit

RANGE

(FACTORY SETTING)

tc-t - Type T TC
tc-E - Type E TC
tc-J - Type J TC
tc-K - Type K TC

tc-r - Type R TC

tc-S - Type S TC
tc-b - Type B TC
tc-N - Type N TC

LIN - Linear mV
r385 - 385 curve RTD
r392 - 392 curve RTD

rLIN - Linear ohms

(tc-J)

°F or °C

(°F)

0 or 0.0

(0)

0 to 4
0 - least input filtering
3 - most input filtering

4 - most input filtering and slower 500
msec display update rate (outputs still

update at 100 msec rate)

(1)

-999 to 9999

1 or 0.1 degree

(0)

-999 to 9999

1 or 0.1 degree

(0)

-999 to 9999

1 or 0.1 degree

(9999)

DESCRIPTION/ COMMENTS

Select from the list of various thermocouple and RTD sensors.

Select either degrees Fahrenheit (F) or degrees Celsius (C). If

changed, be sure to check all parameters.

Select either 1 or 0.1 degree resolution. If changed, be sure to
check all parameters.

Select the relative degree of input signal filtering and display update
rate. The filter is an adaptive digital filter that discriminates between
measurement noise and actual process changes. Therefore, the
influence on step response time is minimal. If the signal is varying
too greatly due to measurement noise, increase the filter value.
Conversely, if the fastest TLA response is desired, decrease the
filter value.

If the TLA temperature disagrees with a reference temperature
instrument or if the temperature sensor has a known calibration, the
TLA temperature can be compensated by a correction offset. The
following equation expresses the relationship: Desired Display
Temp = (TLA Temp) + SHFt. Normally set to 0.

The TLA has programmable high and low setpoint limit values to
restrict the setting range of the limit setpoint. Set the limit values so
that the temperature setpoint value cannot be set outside the safe
operating area of the process. SPHI must be above SPLO.

CONFIGURE MODULE 2 - OUTPUT PARAMETERS (2-OP)

DISPLAY PARAMETER

LiAc

Limit Output Trip Action LO - Low Acting

RANGE

(FACTORY SETTING)

HI - High Acting

(HI)

DESCRIPTION/ COMMENTS

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. See the Limit Output Action section
for details.

7

CONFIGURE MODULE 3 - LOCkOUT PARAMETERS (3-LC)

DISPLAY PARAMETER DESCRIPTION/ COMMENTS

PASS

AL *

FPrS

Password 0 to 250

Alarms #1 and #2 access
level

Front panel reset

LOC - lockout, prevents the alarms from

rEd - read only, alarms appear, but

Ent - enter, alarms appear, and can be

RANGE

(FACTORY SETTING)

(10)

appearing

cannot be modified

modified

(Ent)

NO - disabled

YES - active

(YES)

The password is required to access all parameters. The password can be
set to any value between 0 and 250. A wildcard password, 222, can be
used as an alternative to the programmed password.

The alarm(s) parameter in the Parameter Mode can be configured to be
completely locked out, read only, or fully accessible.

The front panel R button can be enabled or disabled. The Remote Reset
input is not affected by this setting.

* Model Number Dependent.

CONFIGURE MODULE 4 - ALARMS PARAMETERS (4-AL)

DISPLAY PARAMETER

Act1

rSt1

Stb1

AL-1

Act2 *

rSt2 *

Stb2 *

AL-2 *

AHYS

Alarm 1 action mode A-HI - absolute high

Alarm 1 reset mode Auto - automatic

Alarm 1 standby function
(delay)

Alarm 1 value -999 to 9999

Alarm 2 action mode The Alarm 2 parameters are programmed independently of alarm 1. See the

Alarm 2 reset mode Auto - automatic

Alarm 2 standby function
(delay)

Alarm 2 value -999 to 9999

Alarm hysteresis value 1 to 250

RANGE

(FACTORY SETTING)

A-LO - absolute low
d-HI - deviation high
d-LO - deviation low

b-IN - band inside

b-Ot - band outside

(A-HI)

LATC - manual reset

(Auto)

NO or YES

(NO)

(0)

A-HI - absolute high

A-LO - absolute low
d-HI - deviation high
d-LO - deviation low

b-IN - band inside

b-Ot - band outside

(A-HI)

LATC - manual reset

(Auto)

NO or YES

(NO)

(0)

(1)

DESCRIPTION/ COMMENTS

When deviation low-acting with positive alarm value (d-LO), deviation high­acting with negative value (d-HI), or band inside-acting (b-IN) is selected for
the alarm action, the indicator is OFF when the alarm output is ON. See the
Alarms section for complete details of each action. If changed, check alarm

values.

Automatic reset alarms are reset by the TLA when the alarm condition clears.
Latched alarms require operator action to reset the alarm condition. The front
panel R button, if enabled, can be used to reset a latched alarm (see FPrS in
Configure Module 3). A latched alarm condition may also be reset via the
Remote Reset input. See the Reset Action diagram in the Alarms section.

The alarm(s) may be independently configured to exhibit a power-on, standby
delay which suppresses the alarm output from turning ON until the temperature
first stabilizes outside the alarm region. After this condition is satisfied, the alarm
standby delay is canceled and the alarm triggers normally, until the next TLA
power-on. This feature also works for deviation and band alarms when the
setpoint is changed via keypad. This action suppresses “nuisance” alarms. See
the Alarm Standby diagram in the Alarms section.

The alarm values are either absolute values, or relative to the limit setpoint value
(deviation and band alarms). An absolute alarm value is the value that is entered
for the alarm. A relative alarm value is the mathematical sum of the temperature
limit setpoint value and the alarm value (positive or negative), thus a relative
alarm tracks the limit setpoint value as it is changed. If the alarm action is set as
a Band Alarm, then only a positive alarm value can be entered.

corresponding Alarm 1 parameter for description.

The alarm value(s) have a programmable hysteresis band to prevent alarm
output chatter near the alarm trigger point. The hysteresis value should be set
to eliminate this effect. A value of 2 to 5 is usually sufficient for most
applications. A single alarm hysteresis value applies to both alarms. See the
Alarm Action Figures, in the Alarms section, for the effect of hysteresis on the
various alarm types.

* Model Number Dependent.

8

CONFIGURE MODULE 9 - FACTORy SERvICE OPERATIONS (9-FS)

DISPLAY PARAMETER RANGE DESCRIPTION/ COMMENTS

CodE

Factory service function
code

USER PARAMETER VALUE CHART

TLA Number _____________

48 - Calibrate instrument TLA calibration. Refer to the Calibration section for details.

66 - Reset parameters to factory
settings

77 (twice in succession) -
Reset TLA calibration to nominal
values

Entering code 66 restores all parameters to factory settings. The
unit indicates the operation after the P button is pressed, by
displaying “rSEt” in the lower display momentarily.

Caution: this operation erases the TLA calibration values and
defaults the values to nominal settings. Reading errors of ±10%
may result. Do not perform this operation unless the TLA has lost
calibration. Loss of calibration is signaled by an “E-CL” error
flag at power-up. To clear this flag, perform calibration procedure
as noted in the Calibration section. Alternatively, “stepping” through
one of the calibration procedures clears the error flag, but does
NOT validate the calibration accuracy in any manner.

MNEMONIC PARAMETER USER SETTING



L-1
AL-2

Password

Limit Setpoint

Alarm 1 Value

Alarm 2 Value

1-N Input Parameters

MNEMONIC PARAMETER USER SETTING

tPE
SCAL
CPt
FLt
SFt
SPL
SP

Input Sensor Type

Temperature Scale Units

Temperature Resolution

Digital Filtering

Input Offset

Limit Setpoint Lower Limit

Limit Setpoint Upper Limit

2-P Output Parameters

MNEMONIC PARAMETER USER SETTING

-LC Lockout Parameters

MNEMONIC PARAMETER USER SETTING

PASS
AL
FPS

Password

Alarm(s) Access Level

Front Panel Reset

-AL Configure Alarm Parameters

MNEMONIC PARAMETER USER SETTING

Act1
t1
t1
L-1
Act2
t2
t2
L-2
S

Alarm 1 Action Mode

Alarm 1 Reset Mode

Alarm 1 Standby Enabled

Alarm 1 Value

Alarm 2 Action Mode

Alarm 2 Reset Mode

Alarm 2 Standby Enabled

Alarm 2 Value

Alarm Hysteresis Value

LAc Limit Output Trip Action

9

LIMIT OUTPUT ACTION

Process Temp

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. The following action
figures describe the status of the limit output and the front panel indicators for
various over/under setpoint, and reset conditions. Reset is either by the front
panel R button, if enabled, or by the Remote Reset input, terminal #6. Refer to
Configure Module 2 - Output Parameters for details of configuring the limit
output. Refer to Configure Module 3 - Lockout Parameters for details of
configuring the front panel Reset button.

High Trip Action

Setpoint

Process Temp

OFF

Reset

EXceed

OUT

Limit
Output

OFF

OFF

Energized

Annunciator

Annunciator

Low Trip Action

Setpoint

ON

ON

ON

De-energized

OFF

ON

OFF

OFF

Energized

5.0 ALARMS (OPTIONAL)

The alarm action figures describe the status of the alarm output and the front
panel indicator for various over/under temperature conditions. The alarm output
wave form is shown with the output in the automatic reset mode. Select the
alarm action with care -- in some configurations, the front panel indicator (LED)

ABSOLUTE HIGH-ACTING ALARM (A-HI)

TEMP

AL

HYS

Reset

EXceed

Annunciator

OUT

Annunciator

Limit
Output

OFF

OFF

OFF

Energized

ON ON

OFF

ON

ON

De-energized

OFF

OFF

Energized

might be OFF while the output is ON. Refer to Configure Module 4 - Alarm
Parameters for details of configuring the alarms.

ABSOLUTE LOW-ACTING ALARM (A-LO)

TEMP

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

LED OFF

DEVIATION HIGH-ACTING WITH POSITIVE ALARM VALUE (d-HI)

INPUT

SP + AL

SP

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

HYS

OUTPUT ON

LED ON

10

AL

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT OFF

LED OFF

DEVIATION HIGH-ACTING WITH NEGATIVE ALARM VALUE (d-HI)

INPUT

SP

SP + (-AL)

OUTPUT ON

LED OFF

OUTPUT OFF

LED ON

OUTPUT ON

LED OFF

HYS

OUTPUT ON

LED ON

HYS

OUTPUT OFF

LED ON

ON

OFF

ALARM VALUE

OFF

ON

OFF

OFF

TIME

AUTOMATIC

RESET

MANUAL

RESET

MANUAL RESET
PERFORMED BY OPERATOR

INPUT

ALARM MODE

(ABSOLUTE LOW ACTING SHOWN)

ON OFF ON

DEVIATION LOW-ACTING WITH POSITIVE ALARM VALUE (d-LO)

INPUT

SP + AL

SP

HYS

DEVIATION LOW-ACTING WITH NEGATIVE ALARM VALUE (d-LO)

INPUT

SP

SP + (-AL)

HYS

OUTPUT OFF

LED ON

BAND INSIDE ACTING (b-IN)

LED ON

OUTPUT ON

LED OFF

SP + AL

SP

SP - AL

OUTPUT ON

LED OFF

OUTPUT ON

LED OFF

INPUT

OUTPUT OFF

Alarm Reset Sequence

HYS

OUTPUT ON

LED OFF

OUTPUT OFF

LED ON

HYS

OUTPUT ON

LED OFF

OUTPUT OFF

LED ON

OUTPUT OFF

LED ON

OUTPUT ON

LED ON

BAND OUTSIDE ACTING (b-Ot)

HYS

OUTPUT OFF

LED OFF

OUTPUT ON

INPUT

SP + AL

SP

SP - AL

OUTPUT OFF

LED OFF

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

Alarm Standby Delay Sequence

ALARM VALUE

UNIT

POWER-ON

STANDBY

ENABLED

INPUT

ALARM MODE
(ABSOLUTE LOW ACTING
W/AUTO-RESET SHOWN)

OFF ON OFF ON

OUTPUT OFF

LED OFF

LED ON

HYS

OUTPUT OFF

LED OFF

OUTPUT ON

LED ON

OUTPUT ON

LED ON

TIME

CALIBRATION CHECKS

The instrument has been fully calibrated at the factory for all input types. If
the unit appears to be indicating or controlling incorrectly, see the Troubleshooting
section before attempting this procedure.

If the TLA is suspected of reading incorrectly, the instrument may be checked
for indication accuracy without disturbing the factory calibration. The following
procedures may be used for this purpose.

Note: Allow ½ hour warm-up before checking these parameters.

mV Reading Check

1. Connect a DC mV source with an accuracy of 0.03% or better to terminal #8

(-) & #9 (+).

2. Configure Input Parameters Module 1 for linear mV (Lin) input, under tYPE.

3. Compare the TLA read-out to the standard at various points over the range

(-5.00 mV to 56.00 mV). The tolerance is ±(0.15% of reading + 1 LSD).

4. Calibrate the TLA if the readings are out of tolerance.

Thermocouple Cold Junction Temperature Check

1. Connect a thermocouple probe of known accuracy (Types T, E, J, K, N only)

to TLA. Select the probe used in Configure Module 1.

2. Connect a reference temperature probe to measuring end of thermocouple to

monitor temperature. Allow sufficient time for temperatures to equalize.

3. Compare TLA display with reference temperature probe. The TLA display

should equal the calibrated probe temperature. (Tolerance is ±1ºC.)

4. Calibrate the cold junction temperature if out of tolerance.

STANDBY

DISABLED

ON OFF ON OFF ON

RTD Ohms Reading Check

1. Connect RTD simulator (with an accuracy of 0.1 ohm or better) capable of
operating with less than 150 µA to terminals #8, #9, & #10.

2. Configure Input Parameters Module 1 for linear ohms (rLin) input, under tYPE.

3. Compare the TLA read-out with the RTD simulator at various points over the
range 2.0 to 300.0 ohms. The tolerance is ±(0.3% of span + 1 LSD).

4. Calibrate the TLA RTD ohms if out of tolerance.

Error Flag E-CL

If error flag “E-CL” appears at power-up, a loss of calibration parameters due

to noise spikes has occurred. Entering code 77 twice in Factory Service
Operations Module (9-FS) erases the TLA calibration values and defaults the
values to nominal settings. Reading errors of ±10% may result. It is recommended
that the TLA be fully recalibrated. If using thermocouple only, the RTD
calibration need not be performed.

Note: the “E-CL” flag may be cleared by “stepping” through cold junction

calibration procedure without the need to change any calibration values. A
±10% reading error will still exist.

11

6.0 CALIbRATION

When re-calibration is required (generally every two years), this procedure
should be performed by qualified technicians using appropriate equipment.
Equipment source accuracy of 0.03% or better is required.

The procedure consists of: applying accurate mV signals, setting the
thermocouple cold junction temperature, and applying precision resistance,
among others. Allow a 30 minute warm-up period before starting this procedure.
Do not use thermocouple wire for the millivolt or RTD ohms calibration.

Factory Service Operations - Calibration (9-FS)

CodE

CAL

CJC
rtd

Enter function code

Millivolt calibration

Thermocouple cold junction
temperature calibration

48

yes/no

yes/no

yes/noRTD resistance calibration

Millivolt Calibration (CAL)

Connect precision millivolt source with an accuracy of 0.03% to terminals #8
(-) & #9 (+). Cold Junction or RTD ohms calibration MUST be performed after
millivolt calibration.

DESCRIPTION/ COMMENTSACTIONDISPLAY

StP1
StP2
StP3
StP4
StP5

Apply 0.0 mV

Apply 42.0 mV

Apply 56.0 mV

Wait 10 seconds, press P.

Wait 10 seconds, press P.Apply 14.0 mV

Wait 10 seconds, press P.Apply 28.0 mV

Wait 10 seconds, press P.

Wait 10 seconds, press P.

This procedure may be aborted by disconnecting power to the TLA before
exiting the configuration mode. The existing calibration settings remain in
affect.

Note: After completing any of the calibration sequences, the TLA defaults the

input sensor type to thermocouple type “J” (tc-J). Be sure to set input sensor

for proper type.
Note: The TLA must be restored to normal display mode before any data is

stored.

DESCRIPTION/ COMMENTSRANGEPARAMETERDISPLAY

Calibrate instrument.

Calibration required for both RTD and TC input. If this procedure is performed,
the cold junction temp or RTD ohms calibration procedures in turn must be
completed.

Not required if only using RTD input. This procedure can only be performed
AFTER an accurate mV calibration.

Not required if only using TC input. This procedure can only be performed
AFTER an accurate mV calibration.

RTD Ohms Calibration (RTD)

This procedure must be performed AFTER an accurate mV calibration.
Connect one leg of precision resistance (accuracy of 0.1 ohm) to terminals #9
and #10 together, and the other leg to #8.

DESCRIPTION/ COMMENTSACTIONDISPLAY

rtd1
rtd2

Connect 0.0 ohm

(jumper wire)

Connect 277.0 ohm

Wait 10 seconds, press P.

Wait 10 seconds, press P.

Thermocouple Cold Junction Calibration (CJC)

This procedure must be performed AFTER an accurate mV calibration.

1. Exit Factory Service Operations (continually press P until “End”), and return
to Normal Display Mode.

2. Connect a thermocouple probe of known accuracy to the TLA (Types T, E, J,
K, and N only). Select the probe type used in Configure Module 1.

3. Connect a reference temperature probe to the measuring end of the TLA
thermocouple probe. The two probes should be shielded from air movement
and allowed sufficient time to equalize in temperature. (As an alternative, the
TLA thermocouple probe may be placed in a calibration bath of known
temperature.)

4. Compare TLA display with reference temperature probe (or calibration bath).
If the displayed TLA temperature does not equal the reference probe
temperature, calculate the CJ error as follows:

CJ Error = reference probe temperature - displayed TLA temperature

5. Enter Factory Service Operations Module (9-FS).

DESCRIPTION/ COMMENTSPARAMETERDISPLAY

CJC

Cold Junction
Temperature

Observe the indicated cold junction
temperature. Add the calculated CJ Error to
the displayed value. Enter the sum as the new
value for CJC. Exit 9-FS and repeat step 4.

Note: If the initial value for CJC is not within
the range of 15°C to 40°C, enter 25.0° for
CJC and repeat the Cold Junction Calibration
procedure.

12

7.0 TROUbLESHOOTING

The majority of problems can be traced to improper connections or incorrect
set-up parameters. Be sure all connections are clean and tight, that the correct
output board is fitted, and that the set-up parameters are correct.

PROBLEMS POSSIBLE CAUSE

NO DISPLAY

TLA NOT WORKING 1. Incorrect parameter set-up.

“E-FP” IN DISPLAY 1. Defective front panel button.

“E-UP” IN DISPLAY 1. Internal problem with TLA.

“E-E2” IN DISPLAY

“E-CL” IN DISPLAY

“...” or “-..” IN DISPLAY

“OPEN” IN DISPLAY 1. Probe disconnected.

“OLOL” IN UPPER DISPLAY

“ULUL” IN UPPER DISPLAY 1. Input is below range of TLA.

“OLOL” OR “ULUL” IN LOWER
DISPLAY

1. Power off.

2. Brown-out condition.

3. Loose connection or improperly wired.

4. Bezel assembly not fully seated into rear of TLA.

1. Loss of setup parameters due to noise spike or
other EMI event.

1. Loss of calibration parameters due to noise
spike or other EMI event.

1. Display value exceeds display range.

2. Defective or mis-calibrated cold junction circuit.

3. Loss of set-up parameters.

4. Internal malfunction.

2. Broken or burned-out probe.

3. Corroded or broken terminations.

4. Excessive process temperature.

1. Check input parameters.

2. Change to input sensor with a higher
temperature range.

3. Replace transmitter or probe.

4. Reduce temperature.

5. Perform input calibration.

2. Temperature below range of input probe.

3. Defective or incorrect transmitter or probe.

4. Excessive low temperature for probe.

5. Loss of setup parameters.

1. Signal input exceeds allowable range by 5%.

For further technical assistance, contact technical support at the appropriate

company numbers listed.

REMEDIES

1. Check power.

2. Verify power reading.

3. Check connections.

4. Check installation.

1. Check set-up parameters.

1. Press R to escape, then check all buttons for proper operation.

2. Replace unit.

1. Replace unit.

1. Press R to escape, then check all set-up parameters.
a. Check sensor input and AC line for excessive noise.

b. If fault persists, replace TLA.

1. Press R to escape, then check TLA accuracy.
a. Recalibrate TLA. (See Factory Service Module code 77.)
b. Reset parameters to factory default settings.

1. Change resolution to display whole number and verify reading.

2. Perform cold junction calibration.

3. Check set-up parameters.

4. Perform Input calibration.

1. Connect probe.

2. Replace probe.

3. Check connections.

4. Check process parameters.

1. Input exceeds range of TLA.

2. Temperature exceeds range of input probe.

3. Defective or incorrect transmitter or probe.

4. Excessive high temperature for probe.

5. Loss of setup parameters.

1. Check input parameters.

2. Change to input sensor with a lower temperature range.

3. Replace transmitter or probe.

4. Raise temperature.

5. Perform input calibration.

1. Check remote signal source.

13

8.0 INSTALLING AN OUTPUT bOARD

REMOTE

The TLA is supplied with an output board installed.

Replacing Output Board

1. Remove the bezel assembly.

2. Lift up on the top bezel board latch while gently pulling out on the bezel/
display board assembly. Do NOT remove the display board from the bezel.

3. Remove the output board by pulling it away from the other boards. Replace
the output board by aligning the board to board connector. Be certain the
connector is fully mated.

4. Connect the bezel/ display board assembly by guiding the board ends into the
bezel latches. Slide the assembly on evenly until the display board connector
is completely engaged and bezel latches are fully seated onto the boards.

AL1

LIMIT

AL2

AL1

LIMIT

Form-C Relay
Output Board
#RBDLA210

Form-A Relay
Output Board
#RBD48111

DISPLAY

BOARD

CONNECTOR

BEZEL BOARD

LATCH

BEZEL/DISPLAY
BOARD ASSEMBLY

CPU BOARD

EX

A2A1OUT

P

POWER
SUPPLY

BOARD

EB0784

MD1797

OUTPUT BOARD
CONNECTOR

9.0 TERMINAL CONFIGURATIONS

AC Models

Form-A Limit Relay with 2 Alarms Form-A Limit Relay with 2 Alarms

6
7
8
9

10

REMOTE
RESET

COMM.

TC

RTD

ALARM

RELAYS

­+

LIMIT

RELAY

ALARM

RELAYS

LIMIT

RELAY

A2 N.O.

COMM.

A1 N.O.

N.O.

COMM.

14

13

1
2
3
4
5

11

~

AC

12

~

AC

85-250 VAC

50/60 HZ 8VA

DC Models

A2 N.O.

COMM.

A1 N.O.

COMM.

1
2
3

N.O.

4

5

POWER

DC 18-36V 7W

AC 24V ±10%

50/60 HZ 9VA

13

11

(+)

14

12

OUTPUT BOARD

6

RESET

7

COMM.

8
9

10

RTD

(-)

TC

­+

Form-C Limit Relay with 1 Alarm

13

1

ALARM 1

RELAY

LIMIT

RELAY

N.O.

COMM.

N.O.

N.C.

COMM.

2

3
4

5

11

~

AC

85-250 VAC

50/60 HZ 8VA

14

12

~

AC

6
7
8

9

10

COMM.

REMOTE
RESET

­+

TC

RTD

Form-C Limit Relay with 1 Alarm

ALARM 1

RELAY

LIMIT

RELAY

N.O.

COMM.

N.C.

COMM.

POWER

DC 18-36V 7W

AC 24V ±10%

50/60 HZ 9VA

14

6
7
8
9

10

COMM.

REMOTE
RESET

­+

TC

RTD

14

13

1
2
3N.O.
4
5

11

(+)

12

(-)

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15

The Company warrants the products it manufactures against defects in materials and workmanship

LIMITED WARRANTY

for a period limited to two years from the date of shipment, provided the products have been stored,
handled, installed, and used under proper conditions. The Company’s liability under this limited
warranty shall extend only to the repair or replacement of a defective product, at The Company’s
option. The Company disclaims all liability for any affirmation, promise or representation with
respect to the products.

The customer agrees to hold Red Lion Controls harmless from, defend, and indemnify RLC against
damages, claims, and expenses arising out of subsequent sales of RLC products or products
containing components manufactured by RLC and based upon personal injuries, deaths, property
damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be
to any extent liable, including without limitation penalties imposed by the Consumer Product Safety
Act (P.L. 92-573) and liability imposed upon any person pursuant to the Magnuson-Moss Warranty
Act (P.L. 93-637), as now in effect or as amended hereafter.

No warranties expressed or implied are created with respect to The Company’s products except those
expressly contained herein. The Customer acknowledges the disclaimers and limitations contained
herein and relies on no other warranties or affirmations.

Red Lion Controls
Headquarters
20 Willow Springs Circle
York PA 17406
Tel [phone]
Fax [phone]

Red Lion Controls

Europe

Softwareweg 9

NL - 3821 BN Amersfoort

Tel [phone]

Fax [phone]

Red Lion Controls

India
201-B, 2nd Floor, Park Centra
Opp 32 Mile Stone, Sector-30

Gurgaon-122002 Haryana, India

Tel [phone]

Red Lion Controls

China

Unit 302, XinAn Plaza

Building 13, No.99 Tianzhou Road

ShangHai, P.R. China 200223

Tel [phone]

Fax [phone]