Datasheet

V1.01/EN/00438069
Page 3/21Data 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
Typical areas of application
• Industrial and communal, as well as general water and wastewater engineering
• Process measurements, electroplating plants, final inspections, neutralization plants
• Drinking and well water, boiler feed water
• Lightly polluted wastewater
• Two-chamber system for when electrode poisons (e.g. sulphides, cyanides) are present
• Low-temperature applications (-30 to +30 °C), e.g. measurement in cooling systems
• Media containing fluorides (hydrofluoric acid) up to 1000 mg/l HF
• High-alkaline applications (reduced alkaline error at pH values > pH 12)
Key features
• High-quality zirconium dioxide diaphragms (glass fiber diaphragm for plastic shaft)
• Cartridge-style conduction system with a reference electrolyte with no silver ions
• Pressure-resistant versions up to 10 bar (50 °C)
• Temperature range: up to -5 to +80 °C (90 °C for redox) or -30 to +30 °C (for TT version)
• Temperature probe integration options
• Salt reserve option for increasing service life in media with lower conductivity or in drinking water
• JUMO HA glass for continuous measurements in the up to pH 14 range
• Redox versions with a platinum or gold tip up to ±2000 mV
Extra code
Salt reserve, extra code 837 Two-chamber system (DOKA), extra code 838
The option is available to equip the
electrode with a salt reserve, in the
form of four salt rings (see
illustration). This is recommended
when using the electrode in media
with fewer ions or at high flow
rates. The salt reserve helps to
increase the service life of the
electrode. The rings are not a
manufacturing defect
(crystallization).
If electrode poisons (e.g. sulphi-
des) are in the sample medium, the
extended diffusion path (two con-
secutive chambers (double cham-
ber)) and the double diaphragm
foreclosure prevent electrode poi-
soning.
salt reserve
two-chamber
system
JUMO tecLine pH/Rd
pH and redox combination electrodes with ceramic or glass fiber diaphragm
for water and process measurement technology