EDS3-212A Datasheet, PDF (1/14 Pages) Fuji Electric – MULTI-CHANNEL ZIRCONIA OXYGEN ANALYZER

MULTI-CHANNEL ZIRCONIA OXYGEN ANALYZER
DATA SHEET
ZRN, ZFK
This oxygen analyzer measures at multiple points the
oxygen concentration included in the exhaust gas from a large
boiler, and simultaneously outputs the average value of the
concentrations.
Since the distribution of oxygen concentration in exhaust
gas is not uniform with a large boiler such as found in a power
plant, the concentration is measured at multiple points in a
flue. These values are averaged to provide an optimum
oxygen concentration signal which is necessary for
combustion control.
The converter (ZRN) will accept inputs from up to nine
direct-insertion type zirconia oxygen detectors (ZFK), and
carries out computations such as averaging of signals from
the detectors.
The detectors are available in general-use, anticorrosive
and high-temperature types for selection according to the
customer's intended use.
General-use detector
High-temperature detector
FEATURES
1. Up to nine detectors connectable
3, 6 or 9-channel configuration is selectable, and channels
are freely usable within the selected number. Addition of
channel unit allows expansion in units of 3 channels (9
channels max.).
2. Interactive setting of parameters
Various parameters for measurement and maintenance
are easily settable through interaction with the liquid
crystal display.
3. A variety of output signals
Available as analog output are 3 sets of average-value
outputs (average values from desired channel combi-
nation) and oxygen concentration output for each channel.
Also there are 4 contact outputs per channel and 7 contact
outputs common to all channels. All of the analog outputs
are isolated.
4. Full complement of maintenance functions
Auto calibration function and manual/auto blow-down
function are standard-equipped. A self-diagnosis function
for the main unit facilitates taking a remedy at the
occurrence of a fault.
5. Sampling device is unnecessary
Gas sampling devices such as gas aspirator and
dehumidifier are unnecessary since the detector is a
direct-insertion type. The detector is available in a high-
temperature type for measurement of hot gases up to
1590°C and an anticorrosive type for measurement of
strongly corrosive gas from a garbage incinerator.
Converter
SPECIFICATIONS
General
Measuring object: Oxygen contained in noncombustible
gas
Measuring principle:
Direct-insertion zirconia system
Measuring range: 0 to 2 ^……50 vol% O₂, freely settable
(in 0.5% O₂ steps)
Repeatability:
Within ± 0.5% of max. output signal
Linearity:
± 2% of full scale
Response time: Within 7 sec for 90% response (from
calibration gas inlet)
Power supply: 100, 115 or 220VAC, 50/60 Hz
Power consumption:
Approx. 50VA + 50VA x No. of channels
(at steady state of general-use detector)
Approx. 50VA + 200VA x No. of channels
(at startup of general-use detector)
Warmup time: Approx. 15 minutes
Oxygen detector (Type ZFK2,5), Ejector (Type ZTA)
Measuring detector:
For general-use: ZFK2
For corrosive gas: ZFK5
EDS3-212a
Date Apr. 30, 1997