Calibration Of All Amperometric Measured Variables - ProMinent DULCOMETER D1Cb Assembly And Operating Instructions Manual

Measured Variables and Operating Menus for Amperometric Sensors
7.5

Calibration of All Amperometric Measured Variables

WARNING!
Danger of incorrect metering
This can result in hazardous incorrect metering
During initial commissioning, the measured variable and the measuring range of the
sensor must be set prior to calibration. Refer to
Measured Variable and Measuring Range' on page 54
calibration
zero p.: 4.00 mA
slope
6.50 mA/ppm
Fig. 38: Calibration of All Amperometric Measured Variables
Error message
Calibration not possible!
Gradient too low
Calibration not possible!
Gradient too high
DPD value too low
DPD > x.xx ppm
* Please also note the operation manual for the respective sensor
74
calibration
DPD-value
1.55 ppm
calibration
Zeropoint
4.00 mA
Condition
Gradient too low
(< 20 % of standard gra‐
dient)
Gradient too high
(> 300 % of standard gra‐
dient)
DPD < 2 % of measuring
range
Ä Chapter 5.1.2 'Selection of the
calibration
DPD-value
01.55 ppm
14.00 mA
calibration
zero p.:
take over value?
4.00 mA
Remarks *
Repeat calibration
Repeat calibration
Repeat calibration after
addition of metering
medium or fit sensor suit‐
able for the process
calibration
zero p.: 4.00 mA
slope
6.50 mA/ppm
A0018_GB