Portable Explosion Detector ASV-1
- General description
- Technical data
Portable Explosion Detector ASV-1
designed to measure pre-explosive concentrations of flammable gases, vapors of flammable liquids and their complex in air and signaling about exceeding set thresholds of the measured value.
Analyte are hydrocarbons C1 – C18, vapors of organic spirits and thermofors. Exceptions are hydrogen and the components containing in its composition halogens, sulfur, silicon and phosphorus compounds.
Application areas are explosion hazard areas, indoor and outdoor installations in different industries.
Operational principle
Functional principle of ASV-1 is thermochemical, based on the measurement of the thermal effect of the combustion of the analyte at the surface of the catalyst. In the construction of the transmitter applies sensor point-trigger type.
Sampling by diffusion method using an external sampling device supplied also available forcing of analyzable atmosphere.
CONSTRUCTION
The explosion detector is configured in a rectangular case made of aluminum alloy, which houses Transducer, controller, alarm devices and power supply. On the front side of the device are arranged liquid crystal display and control keys. The explosure detector provides warning light and sound signal about thresholds are exceeded.
Explosion detector achieved species protection “intrinsically safe” level “ib” according to IEC 60079-10-98 and “explosion-proof” according to IEC 60079-1-98, marking Ex 1ExibdIIBT5 X.
Personnel protection is against contact with live parts or proximity to, and protection against ingress of solids and water in accordance with IES 529-89 IR63.
The detector has built-in software, designed to meet the challenges of measurement pre-explosive concentrations of flammable gases, vapors of flammable liquids and aggregate in the air.
Advantages:
– Very high accuracy on LEL ( pls see “Technical data” TAB)
– Portable
Stationary Explosion Detector ASV-2
Technical Characteristics
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Measurement Range
from 0 to 50 % LEL
Accuracy
– Methane
– in determining the content of flammable gases, vapors of flammable liquids and their totality in the air±4 % LEL
±6 % LELLimits of permissible variation detector indications
±1 % LEL
Limits of additional absolute measurement error of detector by changes affecting parameters within the operating conditions must be equal, as a fraction of the maximum permissible absolute measurement error:
– By temperature
0.8
– by varying the relative moisture of the environment and the analyzed gas mixture
0.2
– By atmospheric pressure
0.2
Nominal settling time of the output signal of the detector Т0.9 nom
20 sec
Detector warm-up time
max 2 min
Setting range two alarm thresholds
from 5 to 50 % LEL
Time to alarm
max 15 sec
Electric supply
Built-in power supply (3 batteries type LR6 or 3 AA batteries)
Continuous operation under normal climatic conditions:
– By electric supply type LR6
– By fully charged batteriesmin 30 h
min 15 hDimensions (H x W x D)
max 185 х 38 х 59 mm
Weight
max 0.38 kg
Mean time between failures
6000 h
Mean life
10 years
Terms of Use
-Range of ambient temperatures
from – 35 to 50 °C
Range of atmospheric pressure
from 84 to 106.7 kPa
Relative moisture content at a temperature 25 °С
to 95 %
Contents of Delivery
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Explosive Detector Portable ASV-1
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Charger
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Carrying bag for detector
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Batteries AA
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Manual
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Verification procedure
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Pasport
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Nozzle, enema bottle, silicon tube (length 3.5 m)
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Sensor (by customer’s request)