wtw FDO 925 - Recommended Fields of Application

FDO
®
925 Overview
5
ba75898e06 08/2015
Sensor cap with
memory chip
A memory chip is integrated in the sensor cap. The following data are stored
on the memory chip:
 Type designation of the sensor cap
 Series number
 Data of the factory calibration or user calibration
Intelligent
membrane (IQMC
technology)
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.
Automatic sensor
recognition
The data of the sensor and sensor cap is recalled by the meter when the
sensor is connected and is used for measurement and for measured value
documentation. The calibration data are stored in the sensor cap. Thus, the
calibration is automatically retained if the sensor or meter are exchanged.
The digital transmission technique guarantees the failure-free communica-
tion with the meter even with long connection cables.
Firmware update You can update the firmware of the IDS sensor using your meter.
Details on the firmware update are given in the current operating manual of
your meter.
The current operating manual of your meter and the firmware update for the
sensor are available on the Internet under www.WTW.com.
1.2 Recommended fields of application
Recommended
fields of
application
 On site measurements in rivers, lakes and wastewater
 Applications in water laboratories
 BOD measurements