Rockwell Automation 937CS-AITMP-DC1 Universal Temperature Converter Installation Instructions - Manual (Page 20)

1 9
Bul. 937
C Universal Temperature Converter Installation Instructions
The following parameters can be set:
• Sensor (see Connection section):
− Resistance temperature detector: Pt10GOST etc.
− Thermocouple: TXK etc.
− Potentiometer
− Voltage
• Connection mode (for resistance temperature detectors only, see
Connection section):
− 2-wire
− 3-wire
− 4-wire
• Unit:
− for resistance temperature detectors and thermocouples: °F, K or °C
− for potentiometers: fixed ratio
− for voltage (sources): fixed mV
The unit selected here will be used for all respective settings and displays in PACT
ware TM .
• Cold junction compensation (for thermocouples only):
− external (Reference temperature)
− internal (Bul 937A-TCJC)
If you have selected Ext. ref. temp., you can enter the external reference temperature
(range of values: -100 °C to 320 °C)
For an internal Cold junction compensation, you require the
Bul 937A-TCJC terminal block as
an accessory
instead of the normal terminal 1 to 3 (see Connection section).
• Lead Resistance: When connecting an RTD with 2 wire connection the lead resistance of the
cabling can be entered numerically if known.
• 2-Wire Calibration: When connecting an RTD with 2-wire connection the lead resistance of the
cabling can be calibrated if the resistance is unknown. For calibration the sensor must be jumpered.
• Sensor-breakage monitoring (for all types of sensors)
• Sensor-short-circuit monitoring (for resistance temperature detectors only)
You activate or deactivate monitoring by clicking the respective checkbox
( = selected, = deselected).