Specifications
The 8350 pH and 8351 Redox probes are dedicated for process measurements. The pH probes
incorporate impedance control and a temperature sensor in contact with the sample.
8350.4 8350.5 8351
1 - Glass
2 - Tube containing PT100
3 - Platinum ring
4 - PTFE Junction
A special model (8350.3) is compatible with all the standard accessories and is designed for use in
hydrofluoric acid.
8350.4 8350.5 8351
Application Measuring pH at high
temperatures
Measuring pH in a
waste water
environment
Measuring redox
Junction type Flat, PTFE Flat, PTFE Flat, PTFE
Body material PPS CPVC PPS
Measurement range 0-14 pH 0-12 pH ± 1500 mV
Maximum temperature (°C) 110 80 110
Maximum pressure 10 bar 10 bar 10 bar
Drift (/ week) < 3 mV < 3 mV < 3 mV
Offset @ pH7 ± 20 mV ± 20 mV N/A
Slope 56-61 mV/pH 56-61 mV/pH N/A
Reference impedance @ 25°C < 50 Kohm < 50 Kohm < 50 Kohm
Glass impedance @ 25°C 150-500 Mohm 150-500 Mohm Platinum
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
English
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