GEORGE FISCHER +GF+ SIGNET 2550, Instruction Manual

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7
2.7 Installation tips
1. Make sure the Filter function is set to the proper
value for your AC power source (50 or 60 Hz).
(See sec 3.4.4)
2. Allow the magmeter to operate for a period
before attempting to calibrate the unit. The elec-
tronics require a "settling" period during which the
electrode may generate unstable signals. Thirty
minutes to one hour is sufficient.
3. In plastic piping systems, the fluid carries
significant levels of static electricity that must be
grounded for best magmeter performance.
Since plastic pipe is not grounded as metal pipes
are, extra steps must be taken. Identify the places
where the fluid is in electrical contact with external
metal structures or grounds. Connect these points
to TS5 wherever practical.
4. Connect the 24 VDC power and the analog
output signal cables through separate cable ports.
If the frequency output is being used, install a
watertight cable connector in one of the unused
ports. Do not run two cables through one port.
Doing so will defeat the watertight integrity of the
port. (See sec 3.9, spare parts list)
Cable gland
tightened
Cable gland
not tightened
With moisture
drip loop Without moisture
drip loop
careful cable routing and sealed ports can help prevent water intrusion.