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Model: CFZZ6
Description: CFZZ6 Mining Ventilation Resistance Test Instrument
MA: MFA140219 (National safety sign for coal mining products)
KA: KFA140056 (National safety sign for mining products)
ExibI: 320140827 (National certificate number for coal mining intrinsic safe and explosion-proof products)
Patent No. ZL 2012 2 0322596.3
Introduction:
1. Applicable for test of wind speed, absolute pressure, differential pressure, CH4 concentration, temperature and humidity.
2. Comprehensively analysis the loss of line ventilation resistance, local resistance of fan station, resistance distribution of ventilation system and wind pressure, distribution of air volume.
3. For coal mining, non-coal mining, tunnel and other roadways, provide them a scientific basis for ventilation system ' s design, study, safety evaluation, construction and mining.
Technology parameters:
1. Temperature and humidity sensor:
(a) Temperature(℃): -10.0~50.0, accuracy: ± 0.3
(b) Humidity(%RH): 20.0~98.0, accuracy: ± 5
2. Wind speed sensor:
(a) Wind speed(m/s): 0.20~5.00, accuracy: ± 0.2
(b) Wind speed(m/s): >5.00~20.00, accuracy: ± 0.3
3. Atmospheric pressure sensor:
(a) Absolute pressure(hPa): 100.00~1200.00, accuracy: ± 0.3, resolving ability: 0.01
(b) Differential pressure(hPa): -1100.00~1100.00, accuracy: ± 0.1, resolving ability: 0.01
4. Carrier catalytic element:
(a) CH4 concentration (%CH4): 0.00~1.00, accuracy: ± 0.1
(b) CH4 concentration (%CH4): 1.00~3.00, accuracy: truth value ± 10%
(c) CH4 concentration (%CH4): 3.00~4.00, accuracy: ± 0.3
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