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All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation
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TI 11M12A01-01E
2. Installation Guide
Instrument air is not available
EXA
ZR402G
⬃
⬃
F0202.EPS
ZR22G Zirconia Oxygen
Analyzer, Detector
➀Install the stop valve securely so that the gas does not leak.
➁Use the standard gas unit.
➂Use a shielded cable for the signal line.
ZR402G Converter
Stop valve
Calibration gas
ZO21S Standard gas unit
100 to
240 V AC
Contact input
Analog output, contact output
(Digital output HART)
Signal
(6-core shield cable)
Heater (2-core)
Instrument air is available
⬃
EXA
ZR402G
ZR402G Converter
Check valve
or Stop Valve
ZA8F flow setting unit
ZR22G Zirconia Oxygen
Analyzer, Detector
100 to
240 V AC
Air Set
Instrument air
Calibration gas
Reference
gas
Flowmeter
Needle
valve
Zero gas
cylinder
Span gas
Contact input
Analog output, contact output
(Digital output HART)
Signal
(6-core shield cable)
Heater (2-core)
F0203.EPS
➀Install the stop valve or check valve securely so that the gas does not leak.
➁Use the flow setting unit and zero gas cylinder.
➂Use a shielded cable for the signal line.
Regulator
May 31,2004-00