KROHNE OPTISENS PH 8590 - Manual (Page 41)

TECHNICAL DATA
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OPTISENS PH 8590
www.krohne.com 03/2012 - 4001931401 MA OPTISENS PH 8590 R01 en
6.2 Technical data
pH electrodes
INFORMATION!
•
The following data is provided for general applications. If you require data that is more
relevant to your specific application, please contact us or your local representative.
• Additional information (certificates, special tools, software,...) and complete product
documentation can be downloaded free of charge from the website (Download Center).
OPTISENS PH 8590
Measuring system
Measuring principle Potentiometric
Measuring range 0…14 pH
Design
Construction CPVC Body with Tuff Tip®
Shaft diameter 20 mm / 0.79"
insertion length 23 mm / 0.91" or 44 mm / 1.74"
Process Connection 3/4" MNPT
Temperature sensor Pt 100
Sensor Cap attached cable or 4-pin connector
Type of diaphragm Ceramic
Measuring accuracy
Reference conditions Medium: water
Temperature: 20°C / 68°F
Pressure: max. 1 bar / 14.5 psi (absolute)
Maximum measuring
error
pH: 0.2% full scale
Temperature: 1.0% full scale
Repeatability 0.2% full scale
Resolution 0.1 (or 0.01 in extended mode)
Long-term stability 24 hours: tested within accuracy definition
Temperature drift Tested within accuracy definition
Cable length variation Tested within accuracy definition
.book Page 41 Monday, March 19, 2012 2:01 PM