YOKOGAWA EXAxt ZR22G, User Manual, Page: 76 / 211

<4. Piping>
4-11
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
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ZA8F Flow Setting Unit
EXA ZR402G
ZR22G Separate type
Zirconia Oxygen Analyzer, Detector
ZR402G Converter
Reference
gas
Calibration
gas
Stop valve
or
Check valve
Needle
valve
Flowmeter
Instrument air
Air Set
Pressure
reducing
valve
Zero gas cylinder
Calibration gas
unit case
F4-13E.ai
Span gas
(Same as Zero gas calibration unit)
100 to
240 V AC
Contact input
Analog output, Contact output
Digital output (HART)
Signal
(6-core shield cable)
Heater (2 core cable)
Figure 4.14 System 2 using a detector with pressure compensation
4.4.1 Piping Parts for a System using Detector with
Pressure Compensation
Check that the parts listed in Table 4.3 are ready.
Table 4.3 Piping Parts
Detector Piping location Parts Name Note
Detector with
pressure
compensation
Calibration gas inlet Stop valve or check
valve
Recommended by YOKOGAWA (L9852CB
or G7016XH) Provided by YOKOGAWA
(K9292DN or K9292DS)
Nipple * Rc 1/4 or 1/4 NPT General parts
Zero gas cylinder User´s scope
Pressure reducing valve Recommended by YOKOGAWA
(G7013XF or G7014XF)
Joint for tube connection Rc 1/4 or 1/4 NPT General parts
Reference gas inlet Air set Recommended by YOKOGAWA
(G7003XF/K9473XK or G7004XF/K9473XG)
Joint for tube connection Rc 1/4 or 1/4 NPT General parts
Note: Parts with marking * are used when required.
General parts can be found on the local market.
4.4.2 Piping for the Calibration Gas
Calibration gas piping is basically identical to that of System 2. See Section 4.2.2.
4.4.3 Piping for the Reference Gas
Reference gas piping is basically identical to that of for System 2. See Section 4.2.3.