Yokogawa ZR202G Zirconia Oxygen High Temperature Humidity Analyzers
Example of Application
Separate and integrated type Zirconia Oxygen
Analyzers
• Large, medium and small boilers (boilers for power
generation: heavy oil, gas or coal)
• Various industrial furnaces (refinery process/iron
manufacture heating furnace, coal kiln, and black liquid
recovery boilers) For other applications, contact
Yokogawa Electric Corporation.
• May not be applicable corrosive gas such as
ammonia, chlorine is present-check wit
YOKOGAWA.
Sample Gas Temperature: 0 to 700°C (Probe only)
It is necessary to mount the cell using
Inconel cell-bolts when the temperature is
greater than 600°C.
For high temperature sample gas (700
to 1400°C), apply 0.15 m length probe
and High Temperature Probe Adapter
ZO21P-H.
Sample Gas Pressure: - 5 to + 250 kPa (When the
pressure in the furnace exceeds 3 kPa,
it is recommended to use pressure
compensated type. When the pressure
in the furnace exceeds 5 kPa, pressure
compensated type is required.)
For 0.15 m probe, - 0.5 to + 5 kPa. No
pressure fluctuation in the furnace should
be allowed.
Note: When the detector is used in conjunction with a
check valve and the ZA8F Flow Setting Unit, the
maximum pressure of sample gas is 150 kPa.
When with a check valve and the ZR40H
Automatic Calibration Unit, it is 200 kPa. If the
pressure of your sample gas exceeds these limits,
consult with Yokogawa.
Probe Length: 0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0,
3.6, 4.2, 4.8, 5.4 m
Probe Material: SUS316 (JIS)
Ambient Temperature: -20 to +150°C
Reference Gas System: Natural Convection,
Instrument Air, Pressure compensated
(other than for probe length 0.15 m)
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