Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 2)

i
IM 11M12A01-21E
Introduction
The ZR22A and ZR202A Heater Assemblies for ZR22G, ZR22S, ZR202G and ZR202S are described
here.
The ZR22G, ZR22S, ZR202G and ZR202S manuals are listed below.
User’s Manual IM No.
Model ZR22G, ZR402G Separate type Zirconia Oxygen Analyzer IM11M12A01-02E
Model ZR22G, ZR402G Separate type Zirconia High Temperature Humidity Analyzer IM11M12A01-03E
Model ZR202G Integrated type Zirconia Oxygen Analyzer IM11M12A01-04E
Model ZR202G Integrated type Zirconia High Temperature Humidity Analyzer IM11M12A01-05E
Model ZR22S, ZR402G Separate type Explosion-proof Zirconia Oxygen Analyzer IM11M13A01-02E
Model ZR202S Integrated type Explosion-proof Zirconia Oxygen Analyzer IM11M13A01-04E
The heater assembly is a replaceable part. After unpacking, check the following. If any problems are
found, contact our sales office (do not install if problems are found).
Our warranty does not apply if user replaces the heater.
• Check after unpacking
Do a visual inspection to check that bracket is not bent, and insulator element is not chipped or broken.
• Measure resistance of heater and thermocouple (using a tester or the like):
Yellow
Green
Red
White
1
2
3
4
< ZR22A (Separate type) heater assembly >
< ZR202A (Integrated type) heater assembly >
Insulator
Insulator
Bracket
Bracket
Check that heater resistance
is 90 Ω or less.
Check that heater resistance
is 90 Ω or less.
Check that resistance of
thermocouple 5 Ω or less.
Check that thermocouple resistance
(between terminals 3, 4) of 5 Ω or less.
Media No.IM 11M12A01-21E (CD) 3rd Edition :July 2012 (YK)
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