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D01-905en201912 Manual eCHEM Free Chlorine
Free Chlorine
//
Annex
Process data measured values
Address
Access
Data type
Parameters
Value range
Default
0x0000
R / O
float
Concentration /ppm
0x0002
R / O
float
Cell current /nA (@25°C)
0x0004
R / O
float
Temperature
Calibration
The values for zero point (X_Null), slope (X_Span) and then date and time are written to
the sensor. The sensor electronics accepts the new calibration data if the date stamp is
sent within approx. 5 seconds following the values. If the date differs from that of the last
calibration, the new values are stored in the history memory and the oldest values are
overwritten.
Date / Time stamp
•
Data type: unsigned long
•
2
32
= 4294967296
•
Year: (20)42, Month: [94], Day: [96], Hour: [72], Min: [96]
•
Last possible date: 31.12.2042, 23:59
(Subject to technical changes!)
0x0228
R / O
float
X_Null [4]
0x022a
R / O
float
X_Span [4]
0x022c
R / O
unsigned longint
DateTime [4]
yymmddhhmm
0x022e
R / O
float
Measurement range
20
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