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Explosion-proof Specifications
Multi-gas detector
Model XA-4400II
Type of protection
II 1 G Ex ia IIC T3 Ga (ATEX)
Ingress protection code
IP20 (with BP-4000IIAL or BP-4000llMH)
Rating
Ambient
temperature
-20
≦
Ta
≦
+50
℃
Battery unit
Model BP-4000IIAL
Type of protection
II 1 G Ex ia IIC T3 Ga (ATEX)
Ingress protection code
IP20 (with XA-4400II)
Rating
Ambient
temperature
-20
≦
Ta
≦
+50
℃
Battery unit (rechargeable)
Model BP-4000IIMH
Type of protection
II 1 G Ex ia IIC T3 Ga (ATEX)
Ingress protection code
IP20 (with XA-4400II)
Rating
Ambient
temperature
-20
≦
Ta
≦
+50
℃
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9. Specifications
Multi-gas detector
Model XA-4400II
Target gas
Methane or
isobutane
(Combustible gas)
Oxygen
Hydrogen sulfide
Carbon monoxide
Detection principle
Catalytic
Galvanic cell
Electrochemical
Electrochemical
Gas sampling
method
Diffusion
Detection range
(Service range
*1
)
0-100%LEL
(101-110%LEL)
0-25.0vol%
(25.1-50.0vol%)
0-30.0ppm
(30.1-50.0ppm)
0-300ppm
(301-2000ppm)
Accuracy
*2
(excluding service
range)
/-10%LEL
/-0.5vol%
/-1.5ppm
Less than 150ppm:
/-15ppm
151-300ppm:
/-30ppm
Display resolution
1%LEL
0.1vol%
0-35ppm: 0.1ppm
35-150ppm: 0.5ppm
0-350ppm: 1ppm
350-2000ppm:
5ppm
Alarm set values
1
st
stage alarm:
10%LEL
2
nd
stage alarm:
30%LEL
1
st
stage alarm:
19.5vol%
2
nd
stage alarm:
18.0vol%
1
st
stage alarm:
10.0ppm
2
nd
stage alarm:
15.0ppm
TWA: 10.0ppm
STEL: 15.0ppm
1
st
stage alarm:
50ppm
2
nd
stage alarm:
150ppm
TWA: 25ppm
STEL: 300ppm
*3
Response time
*4
Within 30 seconds
Within 20 seconds
Within 30 seconds
Within 30 seconds
Gas alarm method
Beeping alarm, red flashing lights, vibration, LCD (automatic recovery)
Power source
BP-4000IIAL Battery Unit : 1 x Panasonic (or Duracell or Energizer or Varta)
alkaline battery (LR03/AAA)
BP-4000IIMH Battery Unit : 1 x GP GP75AAAHC (rechargeable)
Continuous
operation time
*5
Approx. 40 hours when the battery saving mode is active / Approx. 20 hours when the
battery saving mode is inactive / Approx. 1200 hours without combustible gas sensor
Operating temperature
and humidity
-20 to 50
°
C 30 to 85%RH. No condensation.
Operating pressure
range
Atmospheric pressure (800 to 1100hPa)
Explosion-proof
structure
II 1 G Ex ia IIC T3 Ga (ATEX)
Ingress protection
Equivalent to IP67
*6
Functions
Self-diagnosis (sensor error), automatic air adjustment, battery level indication,
peak-hold, LCD backlight, audio alarm muting during gas alarm, time/temperature indication,
alarm test, alarm volume change, audio muting, battery saving mode, data logging
Dimensions
70 (W) x 73 (H) x 26 (D) mm (excluding protrusions)
Weight
Approx. 130g (excluding battery)
Specifications may be subject to change without notice.
*1: Reference indication beyond the detection range.
*2: Under an identical measurement condition.
*3: STEL alarm set value of carbon monoxide is not defined by ACGIH, but the manufacturer’s standard value.
*4: Time for 90% response (at 20 +/- 2°C in ambient temperature).
*5: At 25°C, with no alarm, backlight and data logging off. The time varies according to the circumstances, condition
of use, storage period, etc.
*6: Dust-proof and water-proof structure which meets the New Cosmos test complying with IEC60529 ingress
protection code IP67 in the condition of brand-new detector. However, this ingress protection code IP67 does not
guarantee any gas detection.
IP67 refers a combined structural rating (IP6X) in which a unit is tested using a dust test where the unit is
depressurized by a maximum of 2 kPa from ambient air pressure and placed in a chamber containing a quantity
of dust to verify that there is no accumulation of dust inside the unit, and a structural rating (IPX7) in with which a
unit is slowly immersed in a stationary water bath filled with normal tap water with the bottom of the unit at 1m
from the water surface for 30 minutes to verify that there is no water entry and damage from exposure.
