PRODUCTS CENTER
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Product name：JC-AWS9 type low concentration weighing constant temperature and humidity system -
Order number： -
Model：JC-AWS9 -
Stock status：Delivery according to contract -
Logistics：FOB、FAS、CIF、CFI、DES
- Product Introduction
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1. Product introduction
The implementation of the new environmental protection standard "The Gravimetric Method for Determination of Low-Concentration Particles in Stationary Pollution Source Waste Gas" (HJ836-2017), the new standard will be officially implemented on March 1, 2018. At the same time, the Ministry of Environmental Protection has revised the "Measurement of Particulate Matter and Gaseous Pollutant Sampling in Stationary Pollution Sources" (GB/T16157-1996), which will also be implemented together with HJ836-2017.
HJ836-2017 "Determination of Gravimetric Method for Determination of Low-Concentration Particles in Stationary Pollution Source Waste Gas" HJ836-2017 New Standard Requirements for Constant Temperature and Humidity Equipment
Select the sampling head that has been balanced according to 8.2.1, and use it in the constant temperature and humidity equipment The balance is weighed, each sample is weighed twice, the interval between each weighing should be greater than 1h, and the maximum deviation between the two weighing results should be within 0.20mg. Record the weighing result and take the average value of 2 weighings as the weighing result. When the mass difference between the two weighings of the same sampling head is greater than 0.20mg, the corresponding sampling head can be rebalanced for at least 24 hours before weighing; if the mass difference between the second weighing and the last weighing is still greater than 0.20mg , the corresponding sampling head can be rebalanced for at least 24 hours and then weighed; if the weight difference after the third balance and the last weighing is still greater than 0.20mg, after confirming that the balance weighing instrument and operation are correct, the sample will be discarded.
2.Features of this product
① Realize the balance of the sample in the high-precision constant temperature and humidity box.
②The electronic balance can work in a high-precision constant temperature and humidity box.
③ Realize sample balance and weighing in the same constant temperature and humidity box to ensure the accuracy of sample weighing results.
④The constant temperature and humidity box adopts a reasonable circulating air method to ensure uniform temperature and humidity in the box.
⑤ Realize the separation and flexible connection of the vibration source such as the compressor and the box, overcome the problem of shockproof and mute, and avoid the interference of equipment vibration on the balance weighing.
⑥ There are two operation inlets on the box body, and there are two rubber gloves at the inlets, so that the product will not touch the external air when handling the product, and it is sealed with a rubber stopper.
⑦The balance table has multi-level shock-proof treatment to ensure that the balance works stably.
3. Product parameters
1. Device name
Constant temperature and humidity test weighing system
2. Equipment model
JC-AWS9
3. Main technical parameters of the equipment
3.1 Internal Dimensions
500×850×600 (mm) (D×W×H)
3.2 External Dimensions
780×1250×1400 (mm) (D×W×H)
3.3 Temperature range
15℃～40℃
3.4 Temperature fluctuation
±0.5℃
3.5 Temperature Resolution
0.1℃
3.6 Humidity range
30～70%RH
3.7 Humidity Resolution
0.1%RH
3.8 Humidity fluctuation
±3%RH
3.9 Power
220V 50/60HZ
3.10 Temperature control accuracy:
±0.1℃
3.11 Display Resolution:
Time: 0.1min, temperature: 0.1℃, humidity 0.1%RH
3.12 Product weight
200KG
3.13 Sample Holder
1 story
3.14 Control Instruments
Taiwan vinylon touch screen control instrument
3.15 Box door
The device has a built-in large glass door with two operating entrances and two rubber stoppers.
3.16 Circular mode
The equipment adopts the internal circulation method of upper air supply and lower air suction to ensure the stability and uniformity of the temperature and humidity of the box.
3.17 Overall structure
Refrigeration unit (external), co-located with the host, does not affect the work of the host
3.18 Air conditioning
A set of axial fans. Heaters, condensers, humidifiers.
3.19 Heater
Electric heating wire humidifier
3.20 Humidifier
Stainless Steel Humidifier
Control mode: PID control mode , water level control device: heater anti-dry burning protection device
3.21 Security Protection
Refrigeration system: compressor overpressure protection, compressor motor overheat protection, compressor motor overheat protection, compressor overcurrent protection
Constant temperature and humidity box: over temperature protection, water shortage protection, temperature over temperature insulation, fan overheat protection Electrical appliances: leakage protection, overload protection, load short circuit protection
4. Equipment structure performance
4.1
Box reference diagram
When handling the product, it is isolated from the outside air!
4.2
Air supply circulation system
motor
Imported fan motor + high temperature resistant aluminum alloy circulation fan
Duct circulation
The air circulation adopts the design of upper air outlet and lower air return, and the wind pressure and wind speed meet the test standards.
Centrifugal fan
The use of high-quality centrifugal fans for strong air circulation can avoid any dead angle and make the temperature distribution in the test area uniform;
Energy saving and quietness are better to ensure a good office environment and the working environment of operators, and the current national and domestic environmental protection requirements
4.3
Heating system
①
The heating system adopts the hot air circulation heating method, and the temperature distribution is uniform and completely independent system.
②
The temperature control output power is calculated by the microcomputer, and the heating power is automatically controlled according to the internal load.
rate, in order to achieve high-precision and high-efficiency electricity benefits, more environmentally friendly and energy-saving
③
Main components of the system: heating tube, solid state relay, etc.
4.4
humidification system
①
All stainless steel shallow surface evaporative humidifier is adopted.
②
The humidification and dehumidification system is completely independent;
Water level control: adopt mechanical float water valve to avoid electronic malfunction
③
Water supply system: water tank,
④
Humidification system composition: humidifier, water level controller, connecting water pipe, hose
4.5
Refrigeration and dehumidification system
compressor
Imported Danfoss hermetic compressor,
cooling method
air cooling
Expansion valve
Danfoss thermal expansion valves are designed for refrigeration applications,
The electromagnetic valve
Imported Italian Castor solenoid valve is mainly used for defrosting adjustment and medium flow control of refrigeration system
condenser
The air-cooled condenser adopts a high-torque, low-speed fan,
Therefore, the noise is low, and the V-type wind condenser also has the advantages of large cooling capacity, small occupied area and beautiful appearance.
Evaporator
Zhejiang Wasion
4. Product Features
①It has the function of temperature display value correction/temperature and humidity sensor correction function (with automatic calibration function to ensure the accuracy of the test)/compressor automatic stop/reservation start/stop operation/pause recording/power failure memory function: When the power is turned off, the program data memory can be kept for 3 months.
②Password protection: set the keyboard input to lock or unlock, set the automatic turn-off time of the backlight, display the running curve of temperature and humidity, click to expand and shrink the graph, and display the language : Chinese/English switchable.
③Using high-definition true color LCD touch screen, real-time monitoring (monitoring and controlling real-time data, signal point data, actual output status). -
