EDS3-125B Datasheet, PDF (1/4 Pages) Fuji Electric – PARAMAGNETIC OXYGEN ANALYZER

PARAMAGNETIC OXYGEN ANALYZER
DATA SHEET
ZKG
This product is a dumbbell type paramagnetic oxygen
analyzer. Because this analyzer is based on that the mag-
netic susceptibility of oxygen gas is larger than coexisting
gases, stable measurement is ensured unaffected by co-
existing gases. The detector does not have a heating part
such as heater. Therefore, this analyzer is suited for mea-
suring the oxygen concentration in flammable gas. Fur-
ther, running cost can be saved since reference gas is not
required.
FEATURES
1. Since reference gas is unnecessary due to use of a
dumbbell type paramagnetic system, this analyzer will
not entail an additional running cost.
2. The principle of measurement is dependent on the
strong magnetic property of oxygen molecules. There-
fore, measurement is almost unaffected by other mol-
ecules weaker in magnetic property than oxygen.
3. Suited for measuring oxygen in flammable gas.
4. Small-sized and easy to handle.
5. Usable with a wide range of power supplies.
6. Output is linear.
SPECIFICATIONS
Measuring range:
0 to 10, 21, 25, 50, 100% O₂
Number of ranges:
1 or 2 ranges (selectable by code sym-
bol)
Measuring system:
Paramagnetic (dumbbell type)
Output signal: One of the following signals (selectable
by code symbol)
4 to 20 mA DC (load resistance 550 Ω
max.)
0 to 1 V DC (permissible load resistance
100 kΩ max.)
0 to 10 mV DC (permissible load resis-
tance 100 kΩ max.)
Repeatability: Within ± 0.5% of full scale
Linearity:
Within ± 1.0% of full scale
Zero drift:
Within ± 2.0% of full scale/week
Span drift:
Within ± 2.0% of full scale/week
Response time: Within 15 sec (90% response)
Flow rate of sample gas:
0.5 L/min ± 0.2 L/min
Pressure loss: Approx. 0.3 kPa (at sample gas flow rate
0.5 L/min)
Flow rate of purge gas (option):
1 L/min, N or air (flowed for purging corro-
2
sive ambient gas)
Power supply: 100 to 240 V AC, 50/60 Hz
Power consumption:
Approx. 35 VA
Ambient temperature:
0 to 45˚C
Ambient humidity:
Less than 90% RH
Warm-up time: Approx. 30 minutes
Materials of gas-contacting parts:
SUS304, SUS316, fluororubber, borosilicate
glass, Electroless Nickel, platinum, platinum/
iridium alloy, PP, Toaron, PVDF (polyvinylidene
fluoride), PPS resin
Interference due to coexisting gas:
Interfering Interfering gas
gas concentration
NO 2000ppm
CO
100vol%
CO2
100vol%
CH4
100vol%
Interfering
concentration
0.15vol% O2 max.
0.1vol%O2 max.
– 0.35vol%O2 max.
– 0.25vol%O2 max.
Enclosure:
Steel casing, for indoor application, flush
mounting on panel
Dimensions (H x W x D):
240 x 192 x 234 mm
Weight:
Approx. 5 kg
Finish color: Munsell 10Y7.5/0.5 semi-gloss
EDS3-125b
Date Apr. 1, 2011