ROTRONIC PF4 - Manual (Page 20)

E-M-PF4-V1_00
Rotronic AG
Bassersdorf, Switzerland
Document Code Unit
PF4 Differential Pressure Transmitter:
Instruction Manual
Instruction Manual
Document Type
Page 20 of 54
Document Title
© 2014; Rotronic AG E-M-PF4-V1_00
The PF4 does not contain a power supply for an analog third-party probe. If adequate, the power supply for the
HC2 probe can be used via the pins V+ and GND (see Figure 9).
When using an analog probe, be sure to define both the voltage signal range and the measurement range of
the probe. The HW4 software requires definition of the measurement range for an analog probe. The HW4
software can also be used to change the probe type for the input.
Pin Configuration E2 Connection
Figure 9: Pin configuration of the E2 socket (view from front)
1) V+: Digital probe: 3.3 VDC, 10 mA
2) GND: Digital and supply ground
3) RXD: UART digital probe
4) TXD: UART digital probe
5) ANA IN: Analog input: 0…3.2 V / 0…25 mA
6) NU: Not used
7) AGND: (Analog GND)