E-m-pf4-v1_00 – ROTRONIC PF4 User Manual

Page 20

E-M-PF4-V1_00

Rotronic AG

Bassersdorf, Switzerland

Document Code

Unit

PF4 Differential Pressure Transmitter:

Instruction Manual

Document Type

Page 20 of 54

Document Title

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)