YOKOGAWA EXAxt ZR22G, User Manual, Page: 74 / 211

<4. Piping>
4-9
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
<Blow pipe manufacturing>
Manufacture the blow pipe as illustrated in Figure 4.12, and mount it on the high temperature
probe adapter.
Approximately
200
Rc1/4
Stainless steel flange
Welded
8 (O.D.) by 6 (I.D.) Stainless steel pipe
F4-11E.ai
Unit : mm
8 ~ 10
Φ
100
Φ
80
4-
Φ
9
Figure 4.12 Manufacturing Blow pipe and Flange
4.4 Piping for the Detector with Pressure
Compensation
The ZR22G-

-

-

-P Detector with Pressure Compensation may be used in System 2 and
System 3. However, it cannot use piping for high temperature probe adapter or blow back piping.
Use this detector whenever the furnace pressure exceeds 5 kPa (see Note). Even if the furnace
pressure is high, the detector can measure by adjusting pressure of the detector to the furnace
pressure using instrument air. The inside pressure of the probe will be kept the same as the
furnace pressure by feeding instrument air at higher pressure than that in the furnace.
NOTE
Sample gas pressure should not vary rapidly and widely.