1 overview, 1 structure and function, Overview – Xylem FDO 925 User Manual
Page 5: Structure and function, 1overview
FDO
®
925
Overview
21
ba75898s01
04/2010
1
Overview
1.1
Structure and function
Structure
Sensor cap with
memory chip
A memory chip is integrated in the sensor cap. The following data are stored
on the memory chip:
z Type designation of the sensor cap
z Series number
z Data of the factory calibration or user calibration
Intelligent mem-
brane (IQMC tech-
nology)
For each membrane, the individual calibration values are determined by a
factory calibration process and stored to the memory chip of the sensor cap,
ensuring maximum accuracy over the whole lifetime of the sensor.
1
Shaft
2
Connection head
3
Fixing ring
4
Sensor membrane
5
SC-FDO
®
925 sensor cap with memory chip
6
Gold-plated contacts for the memory chip of the sensor cap
7
Locking device
8
Measurement window
9
O-ring
10
Thermistor enclosure with temperature sensor
1
2
5
7
3
10
6
9
8
4