YOKOGAWA ZR22S, Руководство пользователя

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<11. Inspection and Maintenance>
11-8
11.1.4 Replacement of Flame Arrestor Assembly
If it takes longer for the analyzer to return to read the concentration of a sample gas after
calibration, the flame arrestor may have become clogged. Inspect the flame arrestor and if
necessary, clean or replace it.
Set the flame arrestor assembly
1
in place using a special pin spanner (with a pin 4.5 mm in
diameter: part no. K9471UX or equivalent). If a flame arrestor assembly that has already been
replaced once is used again, apply grease (NEVER-SEEZ: G7067ZA) to the threads of the flame
arrestor assembly.
If the flame arrestor assembly is clogged with dust, replace it with new one or wash it.
In case of the ATEX flameproof model (MS Code: ZR22S-A-...) or IECEx flameproof model (MS
Code: ZR22S-D-...), the flame arrestor assembly
1
is bonded to the detector
22
with an ceramic
adhesive. To remove the flame arrestor assembly
1
, crack the hardened adhesive on the joint
by tapping it with a flat blade screwdriver and a hammer or appropriate tools. After reattaching the
flame arrestor assembly
1
, apply a small amount of ceramic adhesive (part no. G7018ZA), with
a diameter not exceeding 10 mm, to the joint part. Be careful not to allow the ceramic adhesive
to enter between the female and the male screws. Before applying, stir the ceramic adhesive
thoroughly. The ceramic adhesive should be stored in a cool, dark place and has a shelf life of 6
months from the date of shipment.
Flame Arrestor Assembly
Detector
Apply adhesive here
Flame Arrestor Assembly
Detector
F11-5E.ai
Figure 11.5 Removal of Flame Arrestor Assembly
11.1.5 Replacement of O-ring
The detector uses three different types of O-rings
13
,
19
, and
20
, two O-rings of each type.
Part No. Description
7
K9470BJ Metal O-ring
13
K9470ZS O-ring with grease
19 20
K9470ZP Two pairs of O-rings with grease
IM 11M13A01-02E