ProMinent DULCOTEST DT1B User Manual

3.2 Operating instructions
Display Meaning
Hi Measuring range exceeded or turbidity too
high.
Lo Measuring range undershot.
Change the batteries immediately, continuing
work impossible.
btLo Battery voltage for background lighting too low,
although measurement is possible.
A1856
With a method adjusted by the user, when the
result is shown in the display, an arrow appears
in the [Cal] position.
3.3 Error messages
Display Meaning
E 27/ E 28/
E 29
Light absorption too great. Cause e.g. dirty optics.
E 10 / E 11 Calibration factor outside the permissible range.
E 20 / E 21 Detector receives too much light.
E 23 / E24 /
E 25
Detector receives too much light.
E 22 The battery power was too low during the measurement.
Replace the battery.
E 70 Cl: Factory calibration not OK / deleted
E 71 Cl: User calibration not OK / deleted
E 72 Cl HR factory calibration not in order / deleted
E 73 Cl HR user calibration not OK / deleted
Operating Menu
18

ProMinent DULCOTEST DT1B Specifications

General

Measurement Principle	Electrochemical
Resolution (pH)	0.01 pH
Resolution (Temperature)	0.1 °C
Measuring Range (pH)	0 to 14 pH
Measuring Range (Temperature)	0 to 100 °C
Operating Temperature	0 to 50 °C
Temperature Range	0 to 100 °C
Housing Material	Plastic