English 3 - Hach POLYMETRON 8350 User Manual

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
A special model (8350.3) is compatible with all the standard accessories and is designed for use in
hydrofluoric acid.
Application
Junction type
Body material
Measurement range
Maximum temperature (°C)
Maximum pressure
Drift (/ week)
Offset @ pH7
Slope
Reference impedance @ 25°C
Glass impedance @ 25°C
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.
8350.5
1 - Glass
2 - Tube containing PT100
3 - Platinum ring
4 - PTFE Junction
8350.4
Measuring pH at high
temperatures
Flat, PTFE
PPS
0-14 pH
110
10 bar
< 3 mV
± 20 mV
56-61 mV/pH
< 50 Kohm
150-500 Mohm
8350.5
Measuring pH in a
waste water
environment
Flat, PTFE
CPVC
0-12 pH
80
10 bar
< 3 mV
± 20 mV
56-61 mV/pH
< 50 Kohm
150-500 Mohm
8351
8351
Measuring redox
Flat, PTFE
PPS
± 1500 mV
110
10 bar
< 3 mV
N/A
N/A
< 50 Kohm
Platinum

English 3