SETTINGS THE THRESHOLD, LIMIT VALUE AND COMMISSIONING (Continuation)
Other settings and optimisation:
• If the ascertained limit value is below 10% in the HIGH or MEDIUM range, turn anticlockwise (-) to switch into the LOW range, thus
permitting a more accurate adjustment.
• In order to avoid inadvertent switching due to any brief occurrence of gas bubbles or particles, switching contact delay time (TD) can be
increased to as long as 9.9 seconds.
• Inadvertent switching in the event of switching point fluctuation can be avoided by increasing reset hysteresis (HY).
TROUBLESHOOTING
Error
Cause
Remedy
The blue LED is always on.
The limit value is too low.
Set a higher ‘’Limit value’’!
Reset hysteresis is too high.
Set a lower ‘’Reset Hysteresis’’ value!
Turbidity exceeds the upper limit of the measuring range.
Check the measuring cell for any impurities
(Especially if the measurement previously
and remove them. Clean the glass
functioned in a permanently stable manner.)
discs!
“TT” appears on the display
Light from the emitter is not reaching the receiver.
Check/ Mount the emitter and/or receiver
or
to the measuring cell.
the HDR5 receiver blinks red.
Check the measuring cell for any impurities
and remove them.
Clean the glass discs.
The turbidity value is so high, that no light is
reaching the receiver.
HDR5 emitter blinks red.
Defective emitter.
Replace the emitter.
“TR” appears on the display.
The receiver has malfunctioned or it is not connected.
Check the connection of the receiver!
“ER” appears on the display.
Digital transmission between the receiver and the
Check the cable, observe EMC
GS5 is severely impaired.
environment, use a shielded cable.
“CR” appears on the display.
An internal memory error has occurred.
Reset to factory settings!
“HT” appears on the display.
The maximum permissible temperature of the
Comply with permissible temperature or
connected sensor has been exceeded.
switch off temperature monitoring in the
TP menu!
“LT” appears on the display.
The minimum permissible temperature of the
Comply with permissible temperature or
connected sensor has been fallen short of.
switch off temperature monitoring in the
TP menu!
The switching point has shifted.
Deposits on the optical windows.
Clean the glass discs!
The liquid level is too low.
Fill the measuring cell or immerse the
probe!
An incorrect turbidity range has been selected.
Change the turbidity range!
The limit value is too low or too high.
Adjust the limit value!
TUR
19-08-2021
M-410.03-EN-AA
410-03
/8
Turbidity Limit Value
Evaluation Unit
TURBISWITCH GS5
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Fax
+33 (0)1 30 25 83 20
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