Xylem FDO 925 - Manual (Page 5)

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