Carlyle Compressor Div. P O Box 4808 Syracuse, NY 13221
Phone: 800-462-2759 Fax: 315-432-3274
17
Appendix E - Converting Sensor Inputs to Engineering Units
Pressure Transducers
The following graphs show the sensor output voltage, as measured across the Sig and
Gnd terminals, versus the operating pressure. Separate graphs are shown for the low side
(suction) and high side (discharge and oil) transducers. The equations shown in the
graphs give approximate values as they assume a perfect +5 power supply.
Low Pressure (Suction)
0
1
2
3
4
5
6
-20 0 20 40 60 80 100 120 140
Pressure (PSIG)
PSIG = 33.0 * Vout - 16.5
Output Voltage (DC Volts)
High Pressure (Discharge and Oil)
0
1
2
3
4
5
-50 0 50 100 150 200 250 300 350 400 450 500
Pressure (PSIG)
PSIG = 101.59 * Vout - 47.33
Output Voltage (DC Volts)
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