KROHNE OPTISENS PH 8390 EN - Manual (Page 10)

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DEVICE DESCRIPTION
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OPTISENS PH 8390
www.krohne.com 03/2012 - 4001930601 MA OPTISENS PH 8390 R01 en
The pH electrodes are available with different diaphragms:
pH electrode with open diaphragm and Pt100 pH electrode with open diaphragm and Pt100 pH electrode with open diaphragm and Pt100 pH electrode with open diaphragm and Pt100
open diaphragm (microscopically small hole in the glass); integrated Pt100 temperature
measurement; suitable for cooling water, waste water and chemical industry applications.
pH electrode with ceramic diaphragm pH electrode with ceramic diaphragm pH electrode with ceramic diaphragm pH electrode with ceramic diaphragm
Ceramic diaphragm; suitable for drinking water and pool industry applications.
pH electrode with PTFE diaphragm pH electrode with PTFE diaphragm pH electrode with PTFE diaphragm pH electrode with PTFE diaphragm
Dirt-repellent Teflon diaphragm; suitable for waste water, surface water and process water
applications.
2.3 Nameplate
The sensor type is specified on the labelling of the sensor package and on the sensor itself.
Figure 2-3: Diaphragm types
1 Reference electrode
2 KCl solution
3 Inner pH 7 buffer solution
4 Measuring electrode
5 PTFE diaphragm
6 Ceramic diaphragm
7 open diaphragm
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
.book Page 10 Monday, March 19, 2012 1:52 PM