
USER'S GUIDE ____________________________________________________________________
18 ___________________________________________________________________ M211435EN-E
Alarm LED
The alarm LED at the back of the transmitter provides a visual indication
of the transmitter’s status. The alarm LED functionality is preset at the
factory according to order form. You can configure it as follows:
- You can change the alarm limit using the DM70 hand-held dewpoint
meter. See section Operation with DM70 Hand-Held on page 34.
- You can use the ALARM command on the serial line to change the
alarm limit, enable/disable the dewpoint alarm, or turn on/off the LED
completely. See section Configure the Alarm LED on page 56.
Table 4 Alarm LED States
Power off or LED functionality disabled.
Power on, normal measurement.
Purge or autocalibration in progress, measurement
frozen.
Transmitter error. See section Error Messages on
page 66.
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