YOKOGAWA ZR22S, User Manual

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<3. Installation>
3-7
IM 11M13A01-02E
3.1.6 Probe Insertion Hole
Includes those analyzers equipped with a probe supporter and probe protector.
When preparing the probe insertion hole, the following should be taken into consideration:
CAUTION
• The outside dimension of detector may vary depending on its options. Use a pipe that is
large enough for the detector. Refer to Figure 3.6 for the dimensions.
• If the detector is mounted horizontally, the calibration gas inlet and reference gas inlet
should face downwards.
• The sensor (zirconia cell) at the tip of the detector may deteriorate due to thermal shock if
water drops are allowed to fall on it, as it is always at high temperature.
(1) Do not mount the probe with the tip higher than the probe base.
(2) The detector probe should be mounted at right angles to the sample gas flow or the probe
tip should point downstream.
100 mm
100 mm
F03-4E.ai
(vertical)
Bounds of the probe
insertion hole location
Flange matches
the detector size
(horizontal)
Type Outside diameter of detector
Standard 52 mm in diameter
With probe protector 60.5 mm in diameter
Four-hole flange Eight-hole flange
*1
*1
Figure 3.6 Example of forming probe insertion hole
3.1.7 Installation of the Detector
CAUTION
• The cell (sensor) at the tip of the detector is made of ceramic (zirconia). Do not drop the
detector, as impact will damage it.
• A gasket should be used between the flanges to prevent gas leakage. The gasket material
should be heatproof and corrosion-proof, suited to the characteristics of the sample gas.
The following should be taken into consideration when mounting the general-purpose detector:
<General-purpose detector>
(1) Make sure that the cell mounting screws (four bolts) at the tip of the detector are not loose.
(2) Where the detector is mounted horizontally, the calibration gas inlet and the reference gas
inlet should face downward.