Instruction Manual

<6. Maintenance>

6-54

IM 11B08A01-01E

IMPORTANT

• During the purge, purge gas may ﬂ ow into the sample return line, causing pressure

ﬂ uctuation.

Prepare the sample return line and collection tank, if necessary.

• Prepare the sample return line so that the sample does not return.

CAUTION

The isothermal oven is extremely hot after turning off the power immediately. Keep the purging

air supplied for more than an hour after turning off the power. Keep hands away from the oven

components.

(5) Remove the four pipes connected to the ﬂ owmeter.

(6) Loose the mounting screws at the base and remove the ﬂ owmeter.

(7) Replace the ﬂ owmeter in the reverse order of steps (5) and (6).

(8) Conﬁ rm that there are no leaks in the piping.

K9805WA, K9805WC for gas samples (Gasket: Viton)

K9805WE for liquid samples (Gasket: Teﬂ on)

K9805WB, K9805WD for gas samples (Gasket: Teﬂ on)

K9805WF for liquid samples (Gasket: Daiel Par-Flour)

F0247.ai

Nut 1

Taper tube

Gasket

Connector

Nut 2

Screw (two)

Base

Figure 6.47 Taper Tube

When replacing only the taper tube, follow the procedure below (see Figure 6.47).

(1) Stop the operation. (See “3.3.4 Stopping operation” for this procedure).

(2) Turn off the supply of the sample.

(3) If the sample is liquid, purge the sample line with the purge gas (nitrogen gas or instrument

air).

2nd Edition : May 11, 2012-00