EDS3-124C Datasheet, PDF (1/12 Pages) Fuji Electric – IN-SITU ZIRCONIA OXYGEN ANALYZER

IN-SITU _{ZIRCONIA OXYGEN ANALYZER}
DATA SHEET
ZSB
This oxygen analyzer is used to continuously measure
oxygen concentration in combustion exhaust gas of
industrial boilers or furnaces, and is ideally suited for
combustion moni-toring and control.
The analyzer consists of a flow guide tube with a
detector, which is directly inserted into a flue, etc. to
introduce the gas to be analyzed, a transducer, which
performs control, signal processing, display, input to
and output from outside, and communication, and an
auto calibration/blow unit. The detector of a unit sensor
structure facilitates on-site maintenance. The transducer
provided with an unconventional sensor diagnostic
function and sensor renewal function ensures long-term
stable detecting operation.
FEATURES
1. No need for gas sampling devices
Since the sensor unit is directly inserted into a flue,
etc., gas-sampling devices such as gas aspirator and
dehumidifier are not required, which ensures high
response speed.
2. Easy maintenance
The sensor in a unit structure mounted to the detec-
tor can be replaced easily. Since the detector and
the flow guide tube are installed separately, the filter
at the tip of the detector can be replaced easily, and
detector and the flow guide tube can be maintained
separately depending on the degree of formation of
rust, for example.
3. High reliability ensured by the sensor diagnostic and
sensor renewal functions
Depending on the components in the gas to be
measured, the sensor electrode may degrade. The
transducer diagnoses the degree of degradation of
the sensor and renews it electrically, thus ensuring
high reliability and long-term stable measurement.
4. Improved safety
Detecting a break of the thermocouple for heater con-
trol installed at the sensor, power supply to the detec-
tor is stopped. Furthermore, external contact input
stops power supply to the detector in an emergency.
Those functions along with the key lock function are
equipped as standard to ensure improved safety.
5. Simple operation
The transducer can be operated and various settings
can be made using an interactive system, and display
language is available in English, Japanese, and Chi-
nese.
SPECIFICATIONS
General
Measuring object: Oxygen in noncombustible gas
Measuring method:
Directly insert type zirconia system
Measuring range:
Repeatability:
0 to 2 ···Setting range at option 2 in
50 vol% O2 (in 1 vol% O2
steps)
Within ±0.5%FS
Linearity:
Within ±2%FS
Response time:
Warmup time:
Within 4 to 7 sec, for 90% (from cali-
bration gas inlet)
More than 10 min.
Analog output:
Power supply:
4 to 20mA DC (allowable load resis-
tance 500Ω or less) or
0 to 1V DC (output resistance more
100Ω or more)
Rated voltage;
100 to 120V AC (operating voltage
90 to 132V AC)
Rated frequency; 50/60Hz
EDS3-124c
Date Apr 1, 2011