Xylem YSI 182-XT-4, Operation Manual

Page: 79 / 144

System 182-XT-4 Operation
4 - 15 ba76027e02 12/2014
4.5 Calibration of sensors
General proceeding
Sensors can be protected by a password against
unauthorized calibration. For more detailed information on
password protection, see section 4.6.
1 Switch to the measured value display with
m
.
2 Select the sensor to be calibrated with
W
(in the single
display, the sensor being displayed is always selected at the
same time).
3 Call up calibration with
c
.
The message, During the calibration procedure, the linked
outputs are frozen, appears. The maintenance condition is
switched on the next time the
g
key is pressed. Return to the
measured value display without switching on the maintenance
condition with
m
or
e
.
By activating the maintenance condition, linked outputs
remain in their present state. The measured value or status
display of the sensor flashes in the measured value display.
4 Confirm with
g
. The maintenance condition is active.
The following proceeding is sensor type specific.
The display guides you through all steps.
Follow the instructions exactly.
A message of the success of the calibration and the
determined calibration data appear at the end.
Up to this point you can cancel the calibration procedure
with the
e
key at any time. The system continues to work
with the old calibration data. The maintenance condition,
however, has to be switched off again in any case.