PART FOUR - SERVICE AND MAINTENANCE
SECTION 2 - PRESERVING MEASUREMENT ACCURACY
Rev. 5-1000
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
93
S
ECTION
2
2.1 Keeping Sensor(s)
Clean
2.2 Keeping Analyzer
Calibrated
☞
2.3 Avoiding Electrical
Interference
☞
To maintain measurement accuracy, periodically clean the
sensor(s). Operating experience will help you determine the
intervals between cleanings (typically once a month). Use
the recommended cleaning procedure described in the GLI
contacting conductivity sensor instruction manual.
If the DRY-CAL method (PART THREE, Section 5.3) was
used to calibrate the analyzer, re-calibration is only required
when replacing the GLI enhanced performance conductivity
sensor.
If a different sensor brand is used, or if the ana-
lyzer was calibrated using the 1 POINT SAMPLE
method, periodic re-calibration is required.
In all cases,
always calibrate the analyzer when a sensor is replaced.
NOTE:
If your measuring application requires utmost accu-
racy, GLI offers a re-certification service to verify a
used sensor’s CELL K value and temperature T
FACTOR. For details, call your local GLI represen-
tative or the GLI Customer Service Department.
Recommendation:
Do not run the sensor cables (and in-
terconnect cables, if used) in the same conduit with AC or
DC power wiring.
Maintenance Tip!
Excess cable should not be coiled
near motors or other equipment that may generate
electrical or magnetic fields. Cut cables to proper length
during installation to avoid unnecessary inductive pickup
(“electrical noise” may interfere with sensor signal).
PRESERVING MEASUREMENT ACCURACY
