Calibrate Sensor Zero Point [Check Zero] - ProMinent DULCOMETER Assembly And Operating Instructions Manual

8.1.2

Calibrate sensor zero point [CHECK ZERO]

The sensor has been removed and is connected electrically to the controller.
For calibration hold the sensor in the air.
OPERATION
2.20
25.0 °C
Fig. 24: Calibrate sensor zero point [CHECK ZERO]
1. Press the
ð The menu
2. Using or
ð The menu
3. Using or
ð The menu
4. Wait until the displayed value, for example
only slightly
ppm
3.00
0% MENU
LIMIT ↓
key
[MENU] appears.
[INPUT] and press the
select the entry
[INPUT] appears.
[CHECK ZERO] and press the
select the entry
[CHECK ZERO] appears.
≡MENU
LIMITS
CONTROL
INPUT
※INPUT
SENSOR: CLB2
↳FILTER: 3s
↳CHECK ZERO...
ℂ CHECK ZERO
SENSOR= +2.27 µA
1.87 ppm
CAL=CHECK ZERO
ℂ CHECK ZERO
ZERO= +81 pA OK
CAL=ACCEPT OK=RESET
[µA] , no longer changes, or changes
Operating menus
ℂ CHECK ZERO
ZERO= 0 nA OK
CAL=ACCEPT
key
key
A1087
51