Polymetron 9210 - Typical Measurement Values During Calibration

70
Troubleshooting
10.3 Typical measurement values during calibration
These values are indicative and depend on the ambient temperature. The real values may
deviate by more than one volt without having any effect on the measurements.
6. CALIBRATION
Wrong configuration of the
calibration solution
concentration
Reprogram the calibration solution concentration (SiO
2
).
Wrong concentration of the
standard solution
Prepare a new standard solution.
Wrong laboratory analysis of
the calibration solution
concentration
Verify the SiO
2
concentration of the laboratory calibration solution.
Wrong chemical products or
old or contaminated
Wrong purity? New supplier? Clean the reagent bottles.
7. REAGENTS
Reagent canisters connected
in the wrong order.
Verify the flow of the circuit from the MAINTENANCE /
PUMPS-OTHERS menu.
Reagent tubes connected in a
wrong order.
Verify the flow diagram.
Wrong concentration Prepare a new batch of reagents.
Wrong chemical products or
old or contaminated
Wrong purity? New supplier?
Wrong proportion of reagent Check the pumps.
Bacterial development in
reagent R3 (greenish deposit)
Add 40 ml of sodium benzoate at 1 g/L.
8. PHOTOMETER
Wrong or irregular
measurement
Verify the photometer in MAINTENANCE / PHOTOMETER TEST.
In this menu measurement values of reference and measurement
during the last calibration of the measurement cycle appear. The
typical values of these are in the tables on page 70.
Is there an error message?
Version 0 - 1000 ppb
Sample concentration Reference (mV) Measure (mV)
107 ppb 3500 2515
214.9 ppb 3500 1754
267.4 ppb 3500 1472
534.8 ppb 3500 603
Version 0 - 5000 ppb
Sample concentration Reference (mV) Measure (mV)
1000 ppb 3500 1400
3000 ppb 3500 300