Chapter 14 Troubleshooting and repair
Chapter 14 Troubleshooting and repair
14.1 General problems
Problem
Cause/solution
Device does not
respond (status LED
always off)
l
A rechargeable battery or battery pack that is not approved for use in
the Ex area is being used. Solution: Only use rechargeable battery and
battery packs listed in chapter "Rechargeable battery and battery
packs" on page 121.
l
Fully discharged rechargeable battery and battery packs
Communication
problems
l
Evaluate the status LED blink code (see "Status LED" on page 66).
l
Load the device log from the myDatalog2Ex or the myDatanet server
and use DeviceConfig for the evaluation (see "Evaluating the device
log" on page 119).
l
The rechargeable battery or battery pack capacity is virtually depleted.
ALOHA transmission
mode cannot be
activated
l
The myDatalog2Ex is connected to the USB interface of a PC.
l
Evaluate the blink code of the status LED (see "Status LED" on page
66).
l
Load the device log from the myDatalog2Ex or the myDatanet server
and use DeviceConfig for the report (see "Evaluating the device log"
on page 119).
l
The rechargeable battery or battery pack capacity is virtually depleted.
Not all or no data is
available on the
server
l
The connection was interrupted during transmission, which is indicated
by a time-out entry in the connection list (see "myDatanet Server
Manual " 805002). Solution: Initiate a ALOHA transmission or wait for
the next cyclical transfer.
l
The assignment of the device and site is not correct (see "Site" on page
67).
The data at the
universal input is
not plausible.
l
Check the cable connections (see "Connecting the sensors" on page
46).
l
Check whether the universal input configuration matches the sensor
output signal (see "Measurement channels" on page 67).
Alarm state of a
measurement value
was not detected
Increase the record interval (attention: This will increase the required data
volume).
Alarm state was not
transferred
although the data is
present
l
Check the alarm settings of the measurement channel.
l
The connection was interrupted during transmission, which is indicated
by a time-out entry in the connection list (see "myDatanet Server
Manual " 805002). Solution: Initiate a ALOHA transmission or wait for
the next cyclical transfer.
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