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15. Trouble-shooting
Error:
Data transmission over the wireless link does not function.
Does the symbol ´
Does the yellow LED on the module light up ?
Remedy: Start measuring operation by pressing key
Inside a building attenuation may be too high; try reducing the distance; try
using a cable to connect the sensor module, and then re-align the wi-
reless module.
Error:
Keys do not react
Remedy: Terminate sleep mode and / or device locking by pressing ON.
(see 13,1, 13.2)
Error:
Measured values are not found in the data logger
Remedy: The measuring point numbers and measuring ranges may have
changed; only four channels can be transmitted; try reconfiguring.
(see 11.1.1)
Error:
Measured values are incorrect
Remedy: Switch the device OFF and then ON again; check all channel pro-
gramming very carefully via the interface, especially the base value
and zero-point.
Error:
Measured values fluctuate unexpectedly or the system hangs in mid-
operation.
Remedy: Check the cabling for any inadmissible electrical connections.
Unplug sensor, connect a hand-held sensor in air or a phantom sensor (for
thermocouples short-circuit A-B, for Pt100 sensors use 100 Ω) and
check; then reconnect sensor and recheck. If necessary insulate the
sensor or power the device using an electrically isolated supply.
Error:
Error message ´CALEr´ is displayed when device is switched on
Remedy: The calibration of a measuring range may have become misadjusted.
The device must be recalibrated at our factory.
Error:
Data transmission via the interface does not function
Remedy: This device accepts USB data cable DKU5/V only,
Has the correct baud rate been set on the computer (standard 9600 baud) ?
Ensure that the correct COM port on the computer is being addressed.
Test the data transmission by means of a terminal (Almemo-Control, Win-Con-
trol, WINDOWS Terminal). Check the programming by means of
command ´P15´. (see Man. 6.2.3).
If, after performing the above-listed checks and remedial steps, a device still
fails to behave as described in the operating instructions, it must be returned to
our factory in Holzkirchen, accompanied by a brief explanatory note, error des-
cription, and if available test printouts. (see 16.4) With the Almemo-Control
software you can print out screenshots showing the relevant programming de-
tails and save and / or print out a comprehensive 'function test' in the device list
or terminal mode.
26
ALMEMO
´ on the device light up ?
CONNECT
2790
®
.
F1
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