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Connections
T24-SAe, T24-SAi
Power
Attach power supply wiring to the module as shown below:
+ 3V Supply
0V Supply
Connect to a 3 Volt power supply or batteries.
This module is not reverse polarity protected!
The maximum voltage is 3.6 V!
For battery information please refer to
Appendix D – Battery Selection
Sensor
Strain gauge connection is 4 wire as follows:
SHLD
-EXC
-SIG
+SIG
+EXC
The resistance of the strain gauge can be between 85 and 5000 ohms. The T24-SA can support up to four 350
ohm strain gauges bridges attached in parallel (At the expense of reduced battery life).
The cable lengths between the T24-SA and the gauges should be kept below three metres and generally as short
as possible.
As the measurement is four wire then as the cable length increases the voltage drops in the cable will have more
of an effect on the factory mV/V calibration.
The strain gauge measurement is bi-directional, i.e. tension & compression.
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Mantracourt Electronics Limited
T24 Telemetry User Manual
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