Yamato Pure Line WE200, Instruction Manual, Page: 15 / 55

13
2. PRE-OPERATION PROCEDURES
Installation
9. Install the membrane filter.

Install the membrane filter as follows:

Unless watertight connection is made, threaded portion may leak fluid which could mix
with and contaminate pure water samples. Always ensure a secure, watertight
connection.
（
1
）
From the included items, take out two membrane filters and the roll of Teflon thread
seal tape.
（
2
）
Observe the direction of the arrow on the membrane filter. Apply thread seal tape
by winding it clockwise around the threads, as shown, for two to three turns, while
pulling on tape to stretch it slightly. Begin wrapping at third thread from the tip, so that
first two threads remain exposed. Cut remaining tape away.
（
3
）
Screw the membrane filter into receptacle on front of unit, so that the side with the
thread seal tape is up. Exercise care not to crush threads. Draw a pure water sample
and check for leaks from membrane filter. If any leaking is found, screw membrane
filter in further. The reference number of turns to tighten is two and a half to three.
※
Store the remaining thread seal tape in a safe and convenient location. It is used for every
membrane filter change.
Membrane filter
Detail
Leave first two
threads exposed
Thread seal tape