Xylem WQL User Manual

SensoLyt® WQL

pH electrode with polymer electrolyte

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Operating manual

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SensoLyt®WQL

Note

The latest version of the present operating manual can be found on the
Internet under www.WTW.com.

Copyright © Weilheim 2009, WTW GmbH

Reprinting - even as excerpts - is only allowed with the explicit written
authorization of WTW GmbH, Weilheim.
Printed in Germany.

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SensoLyt®WQL Technical data

Technical data

General data Reference electrolyte Polymer electrolyte, AgCl-free

Junction Single hole junction
Shunt element Ag/AgCl
NTC Yes

Measurement and

application

characteristics

Dimensions,

weight

Materials Shaft Glass

pH measuring range 2.000 ... 12.000
Allowed temperature range 0 ... 60 °C (32 ... 140 ° F)
Membrane resistance at

< 500 MOhm

25 °C
Pressure resistance* IP 68 (10

6

Pa or 10 bar)

Typical application Use in WQL-pH logger

* The electrodes meet the requirements according to article 3(3) of the
directive, 97/23/EC ("pressure equipment directive").

Shaft length 120 mm
Shaft diameter 12 mm
Weight approx. 45 g

Connecting head 12 mm
SMEK plug PEEK with gold-plated contacts
O-rings FPM (Viton)

Electrical

connection

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SMEK head, 6-pole

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