All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation
TI 11M12A01-01E
3-3
<Toc> <Ind>
3. System Configurations
(2) Type: L2 (no auto calibration)
⬃
EXA ZR402G
<2> ZR402G Converter
Check valve
or Stop Valve
<3> ZA8F flow setting unit
<1> 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*1
(6-core shield cable)
Heater (2-core)
Regulator
No.
Check
Sketch of shade
Name
1
2
3
General-purpose detector (with check valve)
Detector with probe protector (same as above)
Detector with filter (same as above)
Note 1: Detector can be selected from among the following
F0302.EPS
See the detector section for details concerning detectors.
(3) Type: L3 (auto calibration)
F0303.EPS
EXA ZR402G
⬃
<1> ZR22G Zirconia Oxygen
Analyzer Detector
<2> ZR402G Converter
Signal*1
(6-core shield cable)
Heater (2-core)
Reference gas
Calibration gas
Flowmeter Needle
valve
Zero gas cylinder
100 to 240 V AC
*2
Check valve
<3> ZR40H Auto-Calibration unit
Contact input
Analog output, contact output
Digital output (HART)
lnstrument air
Regulator
Air Set
Note 1:
Shield cable; Use shielded signal cables, and connect the shield to the FG
terminal of the converter.
Note 2:
When a zirconia oxygen analyzer is used, 100% N
2
gas cannot be used as
the zero gas. Use approximately 1% of O
2
gas (N
2
-based).
May 31,2004-00
