Figure 7 Flow chamber
Note: The arrows indicate the sample flow direction.
Make sure the NPT fittings of the flow chamber (see
Figure 3
on page 6 for location) are leak free by
adding waterproof material onto the male thread. The recommended waterproof material for each
flow chamber is:
Flow chamber
Probe 8310/8311/8312
Probe 8315/8316/8317/8394
08313=A=0001
PTFE thread sealant tape
PTFE thread sealant tape
08318=A=0001
PTFE thread sealant tape
Loctite 577
08394=A=8200
PTFE thread sealant tape
Loctite 577
08394=A=8150
PTFE thread sealant tape
Loctite 577
Programming the transmitter
For detailed information regarding transmitter programming, please refer to the user manual
delivered with the transmitter.
Set the measurement type
Make sure that both switches on the conductivity module of the transmitter are correctly configured
on position
K
(to indicate a 2 electrode probe).
Set the cell constant
On the
PROGRAMMING-MEASURE-PROBE
menu, set the cell constant value (
K
) of the probe.
This value is indicated on the probe certificate and is determined with a precision of < 2% in
compliance with standards ASTM D 1125 and ISO7888.
Set the frequency
On the
PROGRAMMING-MEASURE-PROBE
menu, set the probe frequency in relation to the
conductivity:
K (cm
-1
)
Low conductivity
Average conductivity
High conductivity
0.01
0.01 to 0.1 μS
0.1 μS to 20 μS
20 μS to 200 μS
0.1
0.1 to 1 μ S
1 μS to 200 μS
200μS to 2 mS
1.0
1 to 10 μ S
10 μS to 2 mS
2 to 20 mS
Whenever possible, it is preferable to operate in the
Average conductivity
zone (and therefore to
choose the correct type of probe).
Low conductivity zone:
To avoid causing a parallel capacitance, do not combine a long length of
cable with a high measurement frequency (measurement of conductivity too high). If using a long
length cable (> 20 meters) set the frequency to 70 Hz.
Average conductivity zone:
No particular precautions are required. Set the frequency to 1 kHz.
English
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