Vaisala HMT360Series Guide de l'utilisateur télécharger pdf (Page 46)

User’s Guide ______________________________________________________________________

44 ___________________________________________________________________ M010056EN-J

Power ON/OFF

Open the transmitter cover and flip the internal power switch to position

ON (up), see Figure 24 on page 62.

HMT360 with Display

Measurement readings appear on the display after switching power ON.

The analog output signals can be read from the system or load resistor.

HMT360 without Display

If the transmitter does not have a display, the red LED indicator on the

cover indicates various phases of calibration and possible errors. In normal

operation it is not lit. If the LED is lit and all calibration or test DIP

switches are disabled, it is an indication of an internal error.

Otherwise, the LED indicates the following:

- LED blinking = calibration of the dry end (offset).

- LED lit = calibration of the wet end (gain).

WARNING

Avoid static discharge. Always use a wet cloth for wiping the display.

WARNING

Avoid static discharge. Always use a wet cloth for wiping the display.

NOTE

If calibration is concluded but DIP switch settings are not restored, the

LED indicator keeps blinking.

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Vaisala HMT360Series Guide de l'utilisateur Page 46