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Practical Instrument Electronics
82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Troubleshooting RTD Sensors
Here is an example of the PIE
311Plus reading a sensor with all 4
wires connected.
Here is an example where
connections are made to a 4 wire
sensor and the 311Plus indicates that
only Wires 1, 2 & 4 are connected.
There may be a loose connection or
a break in wire 3 somewhere between
the sensor and the 311Plus.
Only a calibrator with PIE’s patented 2, 3 & 4 wire detection
makes troubleshooting sensor wiring quick, easy and automatic.
This is much simpler and faster than going through the process
of testing each pair of wires to figure out which, if any,
connection is loose or which wire is broken.
Problem found with RTD Sensor Wiring