Vaisala HMP60 Guia do Utilizador descarregar pdf (Página 27)

Chapter 3 ________________________________________________________________ Installation

VAISALA ________________________________________________________________________ 25

Wiring

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

using a threaded connector.

The grounding method depends on the probe and the installation type.

See Table 4 below.

Table 4 Grounding Methods

Probe

Grounding method

HMP63 and HMP113

It is recommended 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,

HMP110D, HMP110T,

HMP110REF

There are two ways to ground the probe depending

on installation type. Choose only one of these

ways:

- 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.

0912-104

Figure 20 Wiring of Analog Output

0912-105

Figure 21 Wiring of Digital Output

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Vaisala HMP60 Guia do Utilizador Página 27