Hanna Instruments HI 943500A - Manual (Page 14)

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• It is recommended to install the HI 7635 vertically. This is to
ensure that trapped air bubbles or turbulent flows cause minimal
interference to the measurement system. The maximum working
pressure of this unit is 5 bar (72.5 psi).
WARNING: Do not use when temperature exceeds 80°C (176°F).
• The HI 7638 process conductivity probe is also
supplied with a 3 m (10') cable. The 6-core
cable of this probe is connected to the HI 8936
process conductivity transmitter as shown.
The DIN connector has to be removed when this probe is used in
conjunction with an HI 8936 transmitter. See page 24 for the
proper connection scheme.
FOR HI 943500 ONLY
Ensure that the HI 7638 con-
ductivity probe is connected
to the meter securely by align-
ing the pins with the socket,
pushing the plug in and
tightening the threaded ring.
• The HI 8936 transmitter may be
wall-mounted at any convenient loca-
tion close to the measurement site.
To minimize thermal drifts due to
extreme temperature fluctuations, par-
ticularly for outdoors measurements, it
is recommended to protect the trans-
mitter inside a casing.
• For the installation of the HI 7635 conductivity probe, use rubber
seals between the probe and the pipe or elbow joints. A pipe
sealant is also recommended to ensure a leak free joint. When
screwing the joints, take care not to overtighten as excessive
pressures can damage the probe.
• The HI 7635 conductivity probe is
supplied with a 3 m (10') cable. The
6-core cable of the probe is connected
to the HI 8936 transmitter as shown.
The connections are color coded for an
easy installation.
See page 24 for the proper connec-
tion scheme.