Diagnostics and troubleshooting
Teqwave H
68
Hauser
12
Diagnostics and troubleshooting
12.1 General troubleshooting
12.1.1 For the local display: transmitter with touch screen
Error
Possible causes
Remedial action
Local display dark and no output signals.
Supply voltage does not match that specified on
the nameplate.
Apply the correct supply voltage.
Local display is dark, but signal output is within
the valid range.
Display is set too bright or too dark.
Set the display brighter or darker via the
"Teqwave Viewer" operating tool using the
"Brightness" parameter.
Display module is faulty.
Contact Hauser Service.
12.1.2 For the local display: transmitter with LEDs
Error
Possible causes
Remedial action
LEDs on the measuring device are not lit and no
output signals.
Supply voltage does not match that specified on
the nameplate.
Apply the correct supply voltage.
LEDs on the measuring device are not lit but
signal output within the valid range.
Display module is faulty.
Contact Hauser Service.
12.1.3 For output signals
Error
Possible causes
Remedial action
Signal output outside the valid range.
Incorrect configuration.
1.
Check the configuration and correct if
necessary.
2.
Stay within the specifications of the
outputs indicated in the "Technical data".
3.
Observe the failure mode of the outputs
as indicated under "Signal on alarm" in the
"Technical data" section.
Device shows correct value on the local display
but the signal output is incorrect, though in the
valid range.
Configuration error.
Check the configuration and correct if necessary.
Measured value not stable
Operation outside the range of application.
1.
Ensure homogeneous mixing of the liquid
and continuous flow of liquid to the
sensor.
2.
Remove air bubbles and/or particles.
3.
Ensure the temperature value is stable.
Suboptimal configuration.
Check the configuration of the "Averaging"
parameter. The following values are
recommended:
• Temperature: 10
• Speed of sound: 5
• Analysis parameter: 5
Measuring device measures incorrectly or
concentration value is zero.
Concentration app not used correctly.
Check the selected concentration app and
change the concentration app if necessary.
Communication error.
Restart the transmitter. In doing so, disconnect
the device from the supply voltage for at least
30 seconds.