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E-mail
2748466411@qq.com
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Phone
13121899399
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Address
No. 18 Xingmao Third Street, Tongzhou District, Beijing
Beijing Tongde Entrepreneurship Technology Co., Ltd
2748466411@qq.com
13121899399
No. 18 Xingmao Third Street, Tongzhou District, Beijing
Mining four in one gas detector model: CD4 (B)
Test gas |
Carbon monoxide (CO), sulfur dioxide (SO)2）Hydrogen sulfide (H)2S）、 Carbon dioxide (CO)2） |
Measurement principle |
Fixed potential electrolysis method (CO, H)2S、SO2）Infrared principle (CO)2） |
test scope |
CO：（0～1000）×10-6CO，SO2：（0.0～100.0）×10-6SO2，
H2S ：（0.0-100.0）×10-6H2S，CO2：（0.00～5.00）% CO2
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Basic error |
CO：0～20×10-6； ±2×10-6CO
>20～100×10-6； ±4×10-6CO
>100～500×10-6± 5% true value
>500～1000×10-6± 6% true value
SO2：0.0～50； ±5.0×10-6SO2 H2S：0～49； ±3×10-6H2S
>50.0～100.0； True value ± 10%>50-100; ± 10% of the true value
CO2： 0.00～0.50； ±0.10%CO2
0.50～5.00； ± (0.05+5% of the true value)
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Alarm error |
CO: Alarm point: 25 × 10-6CO ±1×10-6CO
SO2Alarm point: 10.0×10-6±0.2×10-6SO2
H2S: Alarm point: 10 × 10-6H2S ±1×10-6H2S
CO2Alarm point: 1.00% CO2±0.05%CO2
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response time |
Sulfur dioxide should not exceed 45 seconds; carbon monoxide should not exceed 45 seconds; hydrogen sulfide should not exceed 45 seconds; carbon dioxide should not exceed 60 seconds; (flow rate 200ml/min) |
Alarm sound level intensity |
Not less than 75dB (A) (1 meter away from the buzzer) |
Alarm light visibility |
Not less than 20m (in the dark) |
working hours |
>10h |
External dimensions/weight |
135mm×60mm×20mm/200g |
Battery Specifications |
The intrinsic safety power supply YT-103450 is produced by Weifang Chenhui Lithium Battery Technology Co., Ltd7.4A 1800 mAh lithium manganese oxide battery, a dual lithium battery protection circuit, and a current limiting resistor are used to form an intrinsic safety battery module, which is sealed with epoxy resin.
Maximum open circuit voltage U0：8.0V， Maximum short-circuit current I0：2.5A。
Rated working voltage:7.2V working current: ≤ 120mA
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