Purpose:
Suitable for collecting multiple harmful gas samples such as SO2, NOX, NH3 in the air at once.
Adopting standards:
HJ2.2-2018 Technical Guidelines for Environmental Impact Assessment - Atmospheric Environment
JJG 956-2013 "Verification Regulations for Atmospheric Samplers"
Main features:
1.4 gas paths, capable of simultaneous sampling; Can collect 2 daily averages and 8 hourly samples at once
2. Using mass flow sensors and microcontroller measurement and control technology, the flow rate of the vacuum pump is automatically controlled to achieve constant flow sampling
3. Constant temperature sampling control technology
Adopting semiconductor refrigeration and heating technology, temperature sensors, and constant temperature control technology. Users can freely choose to set the sampling control temperature within the range of (15-35) ℃ according to their needs.
4. Good light avoidance
The absorption bottle installed in the constant temperature box can avoid direct sunlight and reduce the impact of light on the absorption liquid.
5. Able to automatically measure environmental temperature, atmospheric pressure, flow rate and other parameters
6. Able to digitally set parameters such as sampling flow rate (operating conditions), sampling time, interval sampling time, sampling volume (standard conditions), etc
7. Able to digitally calibrate values such as flow rate, temperature, pressure, time, etc
8. Automatically display values such as flow rate, sampling volume, temperature, pressure, sampling time, power outage time, etc
9. Overload automatic protection: During the sampling process, if the sampling flow rate is less than or greater than the set sampling flow rate, the instrument will automatically shut down for protection
10. Power outage protection function: During the sampling process, if there is a power outage, the sampling data can be automatically saved, and sampling can continue after the power is restored
11. Can store 310 sets of sampling data and power outage data, with a retention period of 10 years
12. Automatic protection function for sampling gas path
The anti backflow filter dryer in the sampling gas path structure can not only dry the gas in the filtered gas path, but also prevent the absorption liquid from backflow into the lower gas path, playing a role in protecting the flow sensor and pumping force.
Technical indicators:
Parameters |
Parameter range |
resolution |
Indication error |
sample flow |
(0.1~1.0)L/min |
0.001L/min |
Better than ± 2.5% |
Traffic repeatability and stability |
Traffic repeatability ≤ 0.5%, traffic stability ≤ 2% |
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temperature control |
(15~30)℃ |
0.1℃ |
Better than ± 1 ℃ |
timing error |
1s |
Better than ± 0.1% |
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Load capacity |
When the flow rate is 1L/min, the load is ≥ 10kPa |
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A/B sampling mode |
Method 1: Immediately sample for 24 hours. Method 2: Delay sampling for 24 hours - set the start time of A/B channel sampling and the sampling time for 24 hours separately; Set the starting time range from 00:00 to 23:59. Method 3: Scheduled Sampling - Set the start and end times of A/B timed sampling separately; The range for setting the start and end times is from 00:00 to 23:59. |
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HY-2118-10 C/D sampling mode |
Method 1: Collect Hourly Value Samples - The system samples at fixed time intervals (starting at 02:00 for C1/D1, 08:00 for C2/D2, 14:00 for C3/D3, and 20:00 for C4/D4). Sampling automatically stops after 1 hour for each channel, and the samples are collected into the corresponding absorption bottles. This program cannot be changed by the user. Method 2: Timing Sampling - Set the start and end times for C1/D1, C2/D2, C3/D3, and C4/D4 timing sampling separately. The start time for C2/D2 must be after the end time for C1/D1, the start time for C3/D3 must be after the end time for C2/D2, and the start time for C4/D4 must be after the end time for C3/D3. Otherwise, sampling cannot be started normally. Method 3: Only applicable for timed sampling of 2 samples collected on the C/D channel. Set the start and end times of the C/D channel, and start and end sampling on both channels simultaneously. The samples are collected into the absorption bottles corresponding to C1/D1. |
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power consumption |
<20W |
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noise |
≤50dB |
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Working power supply |
AC(220±22)V,50Hz |
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Host size |
Length x Width x Height: (400 x 330 x 480) mm |
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weight |
About 11kg |
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Working conditions:
1. Working environment temperature: (-30~50) ° C
2. Relative humidity of working environment: ≤ 85%
3. Atmospheric pressure: (80-105) kPa
