Calibration - Spectrum Controls 1769 User Manual

WARNING

Calibration

HAZARD OF DAMAGE TO EQUIPMENT
Be careful when stripping wires. Wire fragments that fall into a module
could cause damage at power up.
3. At one end of the cable, twist the drain wire and foil shield together,
bend them away from the cable, and apply shrink wrap. Then earth
ground at the preferred location based on the type of sensor you are
using. See Grounding on page 10.
4. At the other end of the cable, cut the drain wire and foil shield back to
the cable and apply shrink wrap.
5. Connect the signal wires to the terminal block. Connect the other end of
the cable to the analog input device.
6. Repeat steps 1 through 5 for each channel on the module.
Figure 2-1. Wiring Diagram
3-wire RTD
Jumper
Potentiometer
`
The isolated RTD/resistance module is initially calibrated at the factory. The
module must be returned to the factory for calibration.
Chapter 1: Module Overview
Jumper
EXC 0
EXC 3
Sense 0
Sense 3
RTN 0
RTN 3
EXC 1
EXC 4
Sense 1
Sense 4
RTN 1
RTN 4
EXC 2
EXC 5
Sense 2
Sense 5
RTN 2
RTN 5
User's Manual Pub. 0300241-02 Rev. A
2-15
2-Wire RTD
4-Wire RTD
Leave one sensor wire
open