TLA21000 Red Lion Controls, TLA21000 Datasheet - Page 11

• Manufacturer Part Number: TLA21000
• Description: Form-C Limit Relay W/1 Alarm
• Manufacturer: Red Lion Controls
• Type: Temperaturer

Specifications of TLA21000

• Brand/series: TLA Series
• Contact Form: SPST/SPDT
• Dimensions: 49.5mmW×49.5mmH×115.3mmD
• Enclosure Rating: IP65
• Input Type: RTD/Thermocouple
• Ip Rating: IP65
• Memory: EEPROM
• Mounting Type: Panel
• Number Of Outputs: 1
• Output Type: Relay
• Power, Rating: 8 VA
• Primary Type: Controller
• Special Features: EEPROM
• Standards: cURus, CE, FM
• Temperature, Ambient: 0 to +50 °C (Max.)
• Termination: Screw
• Voltage, Rating: 120⁄240 VAC
• Voltage, Supply: 85 to 250 VAC
• Panel Cutout: 1.77" × 1.77" (1⁄16 DIN)
• Power Requirements: 85-250 VAC
• Sealing: NEMA 4X/IP65
• Operating Temperature: 0°C to +50°C
• Lead Free Status / Rohs Status: RoHS Compliant part

Alarm Reset Sequence
CALIBRATION CHECKS
the unit appears to be indicating or controlling incorrectly, see the
Troubleshooting section before attempting this procedure.
for indication accuracy without disturbing the factory calibration. The following
procedures may be used for this purpose.
mV Reading Check
1. Connect a DC mV source with an accuracy of 0.03% or better to terminal #8
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 (-
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)
2. Connect a reference temperature probe to measuring end of thermocouple to
3. Compare TLA display with reference temperature probe. The TLA display
4. Calibrate the cold junction temperature if out of tolerance.
The instrument has been fully calibrated at the factory for all input types. If
If the TLA is suspected of reading incorrectly, the instrument may be checked
Note: Allow ½ hour warm-up before checking these parameters.
(-) & #9 (+).
5.00 mV to 56.00 mV). The tolerance is ±(0.15% of reading + 1 LSD).
to TLA. Select the probe used in Configure Module 1.
monitor temperature. Allow sufficient time for temperatures to equalize.
should equal the calibrated probe temperature. (Tolerance is ±1ºC.)
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RTD Ohms Reading Check
1. Connect RTD simulator (with an accuracy of 0.1 ohm or better) capable of
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
4. Calibrate the TLA RTD ohms if out of tolerance.
Error Flag E-CL
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.
calibration procedure without the need to change any calibration values. A
±10% reading error will still exist.
Alarm Standby Delay Sequence
operating with less than 150 µA to terminals #8, #9, & #10.
range 2.0 to 300.0 ohms. The tolerance is ±(0.3% of span + 1 LSD).
If error flag “E-CL” appears at power-up, a loss of calibration parameters due
Note: the “E-CL” flag may be cleared by “stepping” through cold junction