Evoqua WALLACE & TIERNAN MFC, Instruction Manual

Page: 166 / 268

166
WT.050.580.000.DE.IM.0714
Operation
MFC
5.
Position.Ym? Ym range too narrow
Position 0 % or 100 % incorrectly
calibrated
Set gap between 0 % and 100 % to at
least 60 % of the entire path
Positioner selected, but not
connected Check setting: Positioner with Ym
Feedback signal incorrect Check feedback signal (1kOhm)
Positioner feedback incorrectly
connected or defective Check (refer to 9. “Wiring Diagrams" on
page 245)
Module? Sensor module was removed
Sensor module defective Refit or replace the sensor module
Adaption? Adaption terminated with error Refer to 4.9 “Adaption" on page 104
Measuring range 1?
Measuring range 2?
Measuring range 3?
Measuring range 4? Min. or max. limit value is outside
the measuring range Check the min/max limit values and
change, if necessary
Setpoint trim? Measuring range and unit for Mod 1
and Mod two not identical Set measuring range and unit for Mod 1
the same, e.g.
Mod 1 = 1.00 mg/l
Mod 2 = 1.00 mg/l
Error message Cause Remedy