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OPERATING INSTRUCTIONS
Instrument with
RTD Input
Controller
Temperature Transmitter
Temperature Indicator
Temperature Trip or Alarm
Receiver Input
Ohms or 2-Wire RTD
Controller
Transmitter
Computer
Three Wire RTD Connection
Two Wire RTD Connection
CALIBRATE RTD INPUTS
Four Wire RTD Connection
SENSOR
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+ COMP
- COMP
Jumper
Jumper
16
CALIBRATE RTD INPUTS
Choose this function to simulate a temperature signal into any
instrument requiring an RTD input.
1) Disconnect the RTD from the instrument being calibrated.
2) Press the T/C/RTD/Ω pushbutton until any RTD type (Pt, Ni or
Cu) appears on the display.
3) Press the DISPLAY/SOURCE/READ push-button until SOURCE
and any RTD TYPE appear on the display
4) Connect using 2 or 3 wires as in the diagrams on the opposite
page. Spade lugs are recommended to minimize any contact
resistance.
Output temperature is continuously adjustable with the
UP/DOWN push-buttons. Zero & Span (or any other values)
are available by using the LO and HI "QUIK-CHEKs”.
To Change the RTD type
1) Press the TYPE/ENG UNITS push-button. The words SELECT
RTD TYPE and the current selection appear on the display.
2) Press any UP/DOWN push-button until the required type
appears on the display.
3) Press the STORE/RESET push-button or wait 5 seconds to
store the selection
Note on 4-Wire Connections:
The TechChek 830-KP may be used to calibrate instruments
requiring a 4-Wire RTD connection. This connection is valid
only when the lead wires included with the 830-KP are used to
connect the 830-KP directly to the instrument. Use of longer
wires can cause errors in the output setting.
For long 4-Wire cable runs use the 3-Wire connection and add
a stacking banana jack (not available from Transmation) to
connect a second wire to jack #1. Connect this extra wire to the
fourth wire field connection.
OPERATING INSTRUCTIONS