32 of 220 Instrument Installation - Anatel A643a
RPS - June 2007 - Edition 12
Operator Manual Anatel
7) Repeat step 2 through step 5 to attach the 10-foot 1/8” OD polypropylene drain tubing
to the WATER OUT port. Run the open end to a gravity feed drain.
The drain must be open (without suction or pressure) and the end of the 10-foot drain tube
should extend no more than 3 feet below the instrument. Do not cut the drain tubing or
instrument performance may be adversely affected.
8) Make sure the sample vessel is installed and securely tightened on the calibration
assembly.
9) Leak test the connections by slowly opening the upstream isolation valve to introduce
water into the instrument. Pulse the valve several times by opening and closing it, then
recheck the fittings.
10) If necessary, slowly tighten the compression fittings to stop any leaks.
Once a new ferrule has been “swaged” by tightening it 1-1/4 turns, it should be tightened only
another 1/8- to 1/4-turn to seal the connection: overtightening the fittings may damage or
crush the ferrules and cause leaks.
Fig 2-22 : Anatel A643a Water I/O Connections
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