ROTRONIC HM4 - Manual (Page 24)

E-M-HM4-V0_08
ROTRONIC AG
Bassersdorf, Switzerland
Document Code Unit
HM4 Humidity and Temperature Probe with
Heated Sensor
Instruction Manual
Document Type
Page 24 of 41
Document Title
© 2014; ROTRONIC AG E-M-HM4-V0_08
6.3 Tuchel Connector Pin Configuration
The HM4 probe is available with Tuchel connector. It is connected either directly at the housing or remotely at
the end of a cable.
Figure 5: Tuchel connector and pin numbering
Pin Name Function
1 V (+)
5…24 VDC
15…24 VDC, depending on output variant and functions used
2 GND Supply ground
3 AGND Analog GND
4 OUT2, analog Temperature (default setting: - 40…60 °C)
5 RS-485 + RS-485 TX+ / RX+
6 OUT1, analog Humidity (default setting: 0…100 %RH)
7 RS-485 - RS-485 TX- / RX-
Guide nose
1
2
3
1
4
3
1
1
5
3
1
1
6
3
1
1
7
3
1
1
DRAFT