Explosion proof dual channel atmospheric sampler

QCS-3000Dual channel atmospheric sampler (explosion-proof)

1、 Product Introduction:

This sampler was newly launched by our company in 2019Explosion proof dual channel atmospheric samplerThe instrument is controlled by a microcomputer constant current system, an LCD digital display system, menu settings, and can be used for both AC and DC. Using American microcontrollers as intelligent control central processing units to make the instrument more adaptable. Standard configuration includes lithium iron phosphate batteries to meet long-term sampling requirements. It is a relatively advanced, ideal, and practical atmospheric testing method suitable for occupational health, environmental protection, factories, mines, enterprises, and collegesexplosion-proofdual-pathair sampler.

This sampler is designed with Exib Ⅱ BT3Gb level (intrinsic safety type) explosion-proof according to MT162-95 "General Technical Conditions for Workplace Dust Samplers", Q/320925JYH05-2019 Enterprise Standard for Atmospheric Samplers, and GB3836.4-2010 standard. It is suitable for factories, mines, and other workplaces containing explosive gases. It has the characteristics of small gas pulsation in sampling, large load capacity, stable flow rate, simple operation, safety and reliability, and easy portability.

2、 Product features:

1. The sampling time can be set arbitrarily within 1min to 99h59min

2. Adopting a large LCD screen display, intelligent management system, menu settings, capable of recording the last sampling time, continuous sampling, intermittent sampling, intelligent power management, timely display of battery level, and charging indication

3. Using memory free high-performance lithium batteries, there is no need to discharge before charging

4. In the lithium battery pack of the sampler, a short-circuit current limiting protection device is specially designed to ensure that the sampler operates within a safe current range, thereby improving the safety performance of the sampler.

5. Adopting an independent dual channel volumetric diaphragm pump for sampling ensures the sampling time and accuracy

6. When the battery voltage is below 6V (please charge it in time), the sampler automatically starts self-protection to avoid affecting the battery's service life due to over discharge.

3、 Working principle:

4、 Technical parameters and working conditions:

1. Flow range: 20-500mL/min, 0.1-1L/min,0.1-1.5L/min, 0.1-3.0L/min (optional)

2. Flow error: ≤± 5%

3. Timing error: ≤± 0.2%

4. Large negative pressure: ≥ 35000Pa

5. Charging current: 500mA

6. Sampling time: ≥ 8 hours

7. Working temperature: -10-40 ℃

8. Noise: ≤ 60dB

9. Relative humidity: ≤ 85%

10. Weight: 1.6KG

11Explosion proof form: Intrinsically safe Ex ibⅡB T3Gb

12. Volume: 220x150x80mm

5、 Usage and maintenance:

1. Sampling: After fixing the absorption bottle with absorption solution (or activated carbon sampling tube), turn on the 'switch' button to enter the startup screen and set the sampling time (adjust the time setting position with the left and right buttons, and add or subtract the set sampling time). After setting the sampling time, press the 'Confirm' button to start sampling. At this time, the internal power supply of the sampler supplies power to the motor through the control circuit, driving the air pump to draw air at a constant flow rate. Harmful gases in the air are drawn into the absorption liquid of the absorption bottle (or onto the activated carbon). At the same time, the timer set starts sampling and timing. After the set sampling time, the instrument automatically stops and the sampling is completed. Then take the samples back to the laboratory for analysis.

If you need to pause the sampling process, press the "confirm" button. Press the 'Confirm' button again to continue sampling. To reset the sampling time, press the "Cancel" button for 3 seconds, and then you can reset the sampling time. When there is no operation in the system function settings, the backlight will automatically turn off for about 5 seconds (entering power-saving mode). After setting the menu once, the next time you turn on the computer, simply press the 'power on' button and select the desired time. Press' confirm 'to start sampling.

2. Charging: The display screen of the instrument shows the battery capacity, and this graphic represents full charge. When the graphic represents under voltage, charging is required. When charging, simply connect the battery cable to AC power and connect it to the sampler for fully automatic charging. The indicator light of the charging completed host has changed from red to green.

3. Attention: If the battery is not used for more than 3 months, it should be recharged to ensure its service life.

6、 Configuration List:

1 host

1 instrument box

2 safety bottles

4 rubber hoses

1 absorption bottle rack

2 fixed nuts

1 tripod

1 lithium battery charger

1 copy of instruction manual

1 certificate of conformity

1 warranty card