Setpoint 2: Differential Pressure Sensor; Analog Differential Pressure Sensor; Analog Differential Pressure Voltage - HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual

Setpoint 2: differential
pressure sensor
Figure 3-12 Setpoint relay 2 (differential pressure sensor) analog voltage
6.0
5.0
4.0
3.0
2.0
1.0
0
-1000
®
Convectron ATM Vacuum Gauge Module Instruction Manual
Refer to Figure 3-12 and use a a high-precision, high-input impedance
(Z > 1 MΩ) DVM to adjust relay 2.
in
1. Use the following equation or the data in Figure 3-12 to determine the
analog output voltage that corresponds to the differential pressure, in
Torr, at which relay 2 will activate and deactivate:
Output voltage
-750 -500
Differential Pressure (Torr)
Analog Module Operation
×
4.000 P 0.004 V
= +
differential
-250 0 250
31