Domestic color screen portable multi gas detector starts emergency annunciator TN-4A
This portable multi gas detector starts the emergency annunciator TN-4A (hereinafter referred to as the start emergency annunciator), which is a gas detector for personal protection that can continuously detect the concentration of multi gases and is easy to use. The color oLED display screen can display the concentration and other Information, big decibel buzzer, start emergency signal indication lamp And vibration start emergency signal to indicate that the current gas concentration has exceeded the set start emergency signal point. The startup emergency annunciator meets the relevant regulations and requirements of GB3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment, GB3836.2-2010 Explosive Atmosphere Part 1: Equipment Protected by Flameproof Enclosure "D", GB3836.4-2010 Explosive Atmosphere Part 4: Equipment Protected by Intrinsically Safe "1" and other standards. 2、 Features
1. The color oled display screen can continuously display the gas concentration in real time
2. Very high protection level, suitable for dark and humid environment
3. Full automatic zero setting and calibration function
4. Automatic startup full function test (including sensor fault detection)
5. Chinese menu operation mode
6 Gas concentration curve browsing function, intuitive and convenient (optional)
7 The screen display can be inverted (optional)
8. Event recording function (optional)
9. The type of toxic gas detected can be set (optional)
10. There are three kinds of settings, including sound, light and vibration, to start the emergency signal mode
11. Rechargeable lithium ion polymer Battery power supply
3、 Technical indicators
1. Detection gas type and measurement range
S/N | Measurement gas type | measuring range |
one | carbon monoxide | （0~1000）μmol/mol |
two | hydrogen sulfide | （0~100）×10-6 |
three | oxygen | （0~30.0）% |
four | combustible gas | （0~30.0）%LEL |
five | sulfur dioxide | （0~100）×10-6 |
six | hydrogen | （0~1000）×10-6 |
seven | ammonia | （0~100）×10-6 |
eight | ozone | （0~1）×10-6 |
nine | chlorine | （0~50）×10-6 |
ten | Hydrocyanic acid | （0~30）×10-6 |
eleven | phosphine | （0~10）×10-6 |
twelve | nitric oxide | （0~100）×10-6 |
thirteen | Nitrogen dioxide | （0~50）×10-6 |
fourteen | Infrared carbon dioxide | （0~5.0）% |
2. Battery parameters: rated voltage 3.7V, nominal capacity 1800mAh
3. Working current:
Normal current: ≤ 100mA (without carbon dioxide, when the screen is off)
≤ 20mA (including carbon dioxide, when the screen is off)
Start emergency signal current: ≤ 240mA (excluding carbon dioxide)
≤ 120mA (including carbon dioxide)
4. Explosion proof grade: ExdibIIBT3 Gb
5. Sensing Organ class type
Combustible gas: catalytic combustion type
Oxygen: Gavani battery
Carbon dioxide: infrared
Carbon monoxide, hydrogen sulfide, ammonia, sulfur dioxide, chlorine, ozone, nitric oxide, nitrogen dioxide, hydrocyanic acid, phosphine and other toxic gases: electrochemical
6. Detection method: diffusion type
7. Response time
Combustible gas: t90<60s
Oxygen: t90<60s
Carbon dioxide: t90<30s
Ammonia, hydrocyanic acid, ozone gas within 160s, phosphine within 100s, and other toxic gases within 60s
8. Continuous working time of full charge: ≤ 14 hours (including combustible gas)
≤ 96 hours (without combustible gas)
9 Indication error: carbon monoxide: ± 10%
Hydrogen sulfide: ± 5% FS
Combustible gas: ± 5% FS
Oxygen: ± 3.0% FS
Carbon dioxide: within ± 0.1% (volume ratio) when the measurement range is 0~0.50%;
± (5% of 0.05% true value) when the measuring range is 0.50%~5.00%
Other toxic gases: within ± 10% (display value) or ± 5% (full scale), amplification
10 Use environment:
Temperature: - 20 ℃~40 ℃
Relative temperature ≤ 90%, no condensation
11. Storage environment:
Temperature: - 20 ℃~60 ℃
Relative temperature ≤ 90%, no condensation
12. Charging temperature range: - 0 ℃~40 ℃
13. Executive standard: GB12358-2006 GB3836.1-2010、GB3836.2-2010、GB3836.4-2010
14. Shell material: ABS , pc, anti-static TPE
15 Overall dimension: 130mm × 72mm × 36mm
