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Chematest 35
Menu Explanations
3.4 Set Time
4 Settings
4.1 Sensors
Photometer
Electrode
Filter time
constant
Temp. Comp.
Standards
Electrode
Filter time
constant
42
Adjust date and time.
Enter the reference values of the verification cuvettes according to
the enclosed calibration certificate.
Range: 0.000–2.000
pH
Used to damp noisy signals. The higher the filter time constant, the
slower the system reacts to changes of the measured value.
Range: 5–300 s
Choose the compensation model which fits best to your application.
Temp. Comp.
None
Nernst
Coefficient
None: no temperature compensation.
Nernst: for potable water, waste water, swimming pools.
Coefficient: for special applications.
Range: −0.100–0.100 pH unit per °C
NOTICE: For this setting the unit °C is always used, regardless
of the setting under
A temperature curve is programmed for SWAN standard 1, pH 7
and SWAN standard 2, pH 9. If you want to use your own standards
you can readjust the temperature curve according to your stan-
dards.
Standard 1: Assign the measured pH value to the according
temperature from 0–50 °C in steps of 5 °C.
Standard 2: Assign the measured pH value to the according
temperature from 0–50 °C in steps of 5 °C.
Redox/ORP
Used to damp noisy signals. The higher the filter time constant, the
slower the system reacts to changes of the measured value.
Range: 5–300 s
4.3 Units, p.
44.
A-96.730.121 / 160920
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