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 p5 power supply.
L o w P r e s s u r e ( S u c t i o n )
0
1
2
3
4
5
6
- 2 0
0
2 0
4 0
6 0
8 0
1 0 0
1 2 0
1 4 0
P r e s s u r e ( P S I G )
P S IG = 3 3 . 0 * V o u t - 1 6 . 5
Output Voltage (DC Volts)
H i g h P r e s s u r e ( D i s c h a r g e a n d O i l )
0
1
2
3
4
5
- 5 0
0
5 0
1 0 0
1 5 0
2 0 0
2 5 0
3 0 0
3 5 0
4 0 0
4 5 0
5 0 0
P r e s s u r e ( P S I G )
P S I G = 1 0 1 . 5 9 * V o u t - 4 7 . 3 3
Output Voltage (DC Volts)