Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 43)

<3. Installation>
3-4
IM 11M12A01-04E
< Procedures for installing the dust guard protector (K9471UC)>
The ZR202G is shipped with the dust guard protector when the option code /F2 is specified in case
of ordering the detector. The protector should be used when preventing dusts and water drops from
lowering the detector performance is desired. Screw the protector on the top of the detector so as to
cover the top. When attaching or detaching the protector, perform by hooking holes of its side with
a hook pin wrench for Ø52-55 hole( Pin diameter 4.5 mm: P/N K9471UX or the like) or by pass a
screwdriver through the holes. When re-attaching the protector after detaching it, apply the “Never-
Seez Nickel Special” to it.
4-Ш6
122
Ш50.8
100
Increasing of insertion length
F11-1.ai
Figure 3.2.2 Installation of the dust guard protector
 *B for enhance forth>
The detector is used with a probe protector to support the probe (ZR202G) when the probe length is
2.5m or more and mounted horizontally.
(1) Put a gasket (provided by the user) between the flanges and mount the probe protector in the
probe insertion hole.
(2) Make sure that the sensor assembly mounting screws (four bolts) at the probe tip are not loose.
(3) Mount the detector so that the calibration/reference gas inlet faces downward.
2050
Ø60.5
Notch
Unit: mm
F3103E.ai
Gasket (t1.5)
Calibration gas inlet
Reference gas inlet
Direction of the sample gas flow
Detector top
Figure 3.3 Probe protector (supporting the mounting strength)