YOKOGAWA EXAxt ZR22G, Руководство пользователя, Страница: 58 / 211

<3. Installation>
3-7
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
3.2.3 Mounting of the High Temperature Detector
CAUTION
• Ceramic (zirconia) is used in the sensor (cell) portion on the detector probe tip. Care should
be taken not to drop the detector during installation.
• The same applies to a probe made of silicon carbide (SiC).
• A gasket should be used on the flange surface to prevent gas leakage. The gasket material
should be selected depending on the characteristics of the sample gas. It should be heatproof
and corrosion-proof. The parts, which should be supplied by the user, are listed in Table 3.1.
Table 3.1 Accessories for mounting high temperature probe adapter
Mounting flange specification Parts name Q’ty Note
JIS 5K 50 FF (equivalent) Gasket 1 Heatproof and corrosion-proof
Bolt (M12 by 50) 4
Nut (M12) 4
Washer (for M12) 8
ANSI Class 150 4RF (equivalent) Gasket 1 Heatproof and corrosion-proof
Bolt (M16 by 60) 8
Nut (M16) 8
Washer (for M16) 16
A high temperature detector should be mounted as follows:
(1) It is recommended to mount the detector vertically. When it is impossible due to the physical
arrangements and the detector is mounted horizontally, ensure that the probe tip be placed
no higher than the probe base.
(2) When mounting a high temperature probe adapter, be sure to insert a gasket between the
flanges to prevent gas leakage. When the furnace pressure is negative, ensure that there is
no leakage of air into the detector.
(3) When mounting the detector in a position other than vertical, the cable inlet should face
downward.
(4) When installing the detector in a low-temperature location such as in the open air, cover the
probe adapter including the ejector with a heat insulator (e.g. ceramic wool) to keep it warm
and to prevent condensation of drain on the ejector.
Wiring connection
Wiring connection
When using an SiC probe, mount the probe vertically
with an allowable tilt of ± 5°.
Mount the probe so that
the probe tip is not higher
than the probe base.
F3-6E.ai
Figure 3.8 Mounting of the High Temperature Detector