Datasheet

V1.01/EN/00438069
Page 15/21Data Sheet 201020
JUMO GmbH & Co. KG
Delivery address: Mackenrodtstraße 14
36039 Fulda, Germany
Postal address: 36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet: www.jumo.net
JUMO Instrument Co. Ltd.
JUMO House
Temple Bank, Riverway
Harlow, Essex CM 20 2DY, UK
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet: www.jumo.co.uk
JUMO Process Control, Inc.
6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Internet: www.jumousa.com
20102000T10Z001K000
Construction of an electrolyte bridge
für combination electrodes with liquid KCl supply
In water with very low conductivity it is recommended to measure with a pH electrode, which is filled with liquid KCl as reference electrolyte.
The KCl solution is released into the measuring medium through the diaphragm and thus locally increases the electrical conductivity of the me-
asuring medium. This decreases the resistance between pH electrode part and reference electrode part and enables a stable pH measurement.
Potassium chloride (KCl) "contaminates" the previously treated water, therefore, it should be checked whether the water has to be discarded after
the measurement.
For more information, see also JUMO technical essay (FAS) 614 „Information on high-purity water“.
(1) pH combination electrode with KCl liquid electrolyte, e.g. 201020/76-18-09-22-180/833, part no. 00373964
(2) Electrode connecting cable, e.g. 202990/02-92-5-13, part no. 00307298
(3) Transmitter JUMO dTRANS pH 02, e.g. 202551/01-8-01-4-0-00-23/000, part no. 00560379
(4) KCl storage vessel, pressure-resistant, for wall mounting, part no. 00060254
(5) Hose coupling from diaphragm tube to KCl storage vessel (included in 4)
(6) KCl connection (accessorie for 1), part no. 00475617
(7) Grounding
(8) Quick-change fittings, e.g. 202822/105-062-26, part no. 00366915
(8)
(7)
(1)
(6)
(5)
(4)
(2)
(3)