8-pin connector - HMP155

HMP155 User Guide
Document code
M210912EN
Revision
G.1
Language
English
Product
HMP155
Document type
User guide

HMP155 has an 8-pin M12 male connector on the bottom of the probe.

Figure 1. Wiring of HMP155 8-pin connector
Table 1. Wiring of HMP155 8-pin connector
Pin Open-end wire color Passive output Active output
1 White Pt100 VOUT1
2 Brown RHOUT 0 … 1 V / RS-485-B RS-485-B
3 Green Pt100 AGND
4 Yellow Pt100 VOUT2
5 Gray Pt100 -
6 Pink AGND / RS-485-A RS-485-A
7 Blue VCC VCC
8 Red GND GND
- Black Shield Shield

The shield is not a pin but a conductor in the connection cable.

Figure 2. HMP155D block diagram and wiring

The left side shows the HMP155D block diagram. The right side shows an example of connections.

Make sure that the analog ground (AGND) and the power ground (GND) are isolated from each other. If they are not isolated, analog T and RH readings may be disturbed.
Figure 3. HMP155A/E block diagram and wiring

The left side of the figure shows the HMP155A/E block diagram. The right side shows an example of connections.

Make sure that the analog ground (AGND) and the power ground (GND) are isolated from each other. If they are not isolated, analog T and RH readings may be disturbed.