Wiring - HMP110 - HMP113 - HMP60 - HMP63

For a secure connection to the probe, connect to the 4-pin M8 connector using a threaded connector.

Pin-out of HMP60 / HMP63 / HMP110 analog / HMP113 / HMP110T

1

5 ... 28 VDC (V_out 0 ... 1 / 0 ... 2.5 V)

8 ... 28 VDC (V_out 0 ... 5 / 1 ... 5 V)

Wire color: brown

2

Channel 1: RH / Td / T

0 ... 1 / 2.5 / 5 V, 1 ... 5 V

Wire color: white

3

GND / AGND

Wire color: blue

4

Channel 2: RH / Td / T

0 ... 1 / 2.5 / 5 V, 1 ... 5 V

(HMP110T has no output on channel 2)

Wire color: black

Pin-out of HMP110REF / HMP110 digital

1

5 ... 28 VDC

Wire color: brown

2

RS-485: - / B

Wire color: white

3

GND

Wire color: blue

4

RS-485: + / A

Wire color: black

Table 1. Grounding methodsThe grounding method depends on the probe and the installation type.

Probe	Grounding method
HMP63 HMP113	Vaisala recommends to use a shielded cable and connect the shield to ground. In the shielded cables supplied by Vaisala, the threaded connector connects the shield to the probe housing.
HMP60 HMP110 HMP110T HMP110REF	There are two ways to ground the probe depending on installation type. Choose only one of these methods: Grounding is provided by the metal cover of the probe. If using shielded cables, shield is NOT connected to ground. A shielded cable is used, and the shield is connected to ground. In the shielded cables supplied by Vaisala, the threaded connector connects the shield to the probe housing.