Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 41)

<3. Installation>
3-2
IM 11M12A01-04E
3.1.2 Probe Insertion Hole
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 3.1 for the dimensions.
If the detector is mounted horizontally, the calibration gas inlet and reference gas inlet should
face downwards.
• When using the detector with pressure compensation, ensure that the flange gasket does not
block the reference gas outlet on the detector flange. If the flange gasket blocks the outlet, the
detector cannot conduct pressure compensation. Where necessary, make a notch on the flange
gasket.
• The sensor (zirconia cell) at the probe tip 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) If the probe length is 2.5 m or more, the detector should be mounted vertically (no more than a 5°
tilt).
(3) The detector probe should be mounted at right angles to the sample gas flow or the probe tip
should point downstream.
100mm
(vertical)
Bounds of the probe
insertion hole location
Flange matches
the detector size
(horizontal)
100mm
Four-hole flange Eight-hole flange
F3101E.ai
* 1
Note
*1
Type Outside diameter of detector
With dust filter 51 mm in diameter (Note)
With probe protector 60.5 mm in diameter (Note)
Standard 50.8 mm in diameter (Note)
(Note) When using the detector with pressure compensation, ensure that the flange gasket does not block the reference gas
outlet on the detector flange. If the flange gasket blocks the outlet, the detector cannot perform pressure compensation.
Where necessary, make a notch in the flange gasket.
Figure 3.1 Illustrates an example of the probe insertion hole
3.1.3 Installation of the Probe
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.