Rotronic HM4 Instrukcja Użytkownika Pobierz pdf (Strona 31)

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

31 of 41

Document Title

8.3 Filter Maintenance

Depending on the application and environmental conditions, the filter must be checked from time to time and

cleaned or replaced when soiled.

1. Unscrew the filter from the probe housing and carefully pull the filter off the probe in a straight line.

2. When placing the filter back on again, take care not to damage or bend the wires of the Pt100 sensor

(Figure 7).

Figure 7: Probe head (filter removed)

8.4 Validation of the Analog Outputs

The HM4 offers the possibility to set the analog outputs on a fixed value. This makes it possible to test if the

output stages of the HM4 are working correctly. The function can be activated with the HW4 PC software. Setting

of fixed values is described in the manual E-M-HW4v3-F2-022.

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Rotronic HM4 Instrukcja Użytkownika Strona 31