Atmospheric particle detection, low concentration constant temperature and humidity weighing system, environmentally friendly detection, intelligent and precise

Technical parameters:

1. The new constant temperature and humidity weighing system places a high-precision balance in the high-precision constant temperature and humidity system. The sample to be weighed is placed in the system, equilibrated for 24 hours, and then manually weighed. This system overcomes the impact of temperature and humidity changes in the laboratory environment on weighing results and improves the accuracy of weighing.

2. The box body is made of high-quality cold-rolled steel plate surface with electrostatic spraying, and the coating is hard and firm, with extremely strong rust prevention ability. The front door is fully glass and can be opened, with two reserved operation workstations

3. The box is equipped with pulleys and self-locking function, making it easy for the whole machine to move and fix, and the balance works inside the system. The sample is balanced in a high-precision constant temperature and humidity environment to ensure the weighing accuracy of the sample. The system has automatic mechanical fault alarm function and automatic water tank water shortage alarm function. It is designed reasonably and adopts multi-level seismic measures to ensure the continuous and stable operation of the balance.

The wind speed inside the constant temperature and humidity weighing system does not affect the storage, retrieval, etc. of the samples. The constant temperature and humidity system adopts a cycle of upward air supply and downward air suction to ensure uniform temperature and humidity inside the box. The box door is equipped with a full frame transparent window for observing changes in the indoor samples. The observation window is made of organic panels, which have the advantages of transparency, heat insulation, and are not prone to steam frosting; And silicone gloves should be equipped to ensure that the temperature and humidity fluctuations inside the constant temperature and humidity chamber meet the requirements of HJ836-2017 "Determination of Low Concentration Particulate Matter in Fixed Pollution Source Waste Gas by Weight Method" during manual operation, and the balance weighing is not affected. This product meets the requirements of GB2423.1-2001 Test A "Low Temperature Test Method";

GB2423.2-2001 Test B "High Temperature Test Method";

GB2423.3-93 Test Ca "Constant Damp Heat Test Method" GBT1740-2007

Meet the standards HJ618-2011, HJ656-2013, and HJ836-2017 of the Ministry of Environmental Protection for low concentration particulate matter in fixed pollution source exhaust gas

Determination of Particle Weight Method "; According to the regulations, constant temperature and humidity adjustment ensure the accuracy of the sample weighing results and the stability of the sample weighing data

The upper part of the box is the experimental area, the bottom is a frame type, and the electrical control cabinet is located on the right side of the equipment. Reasonably designed and durable. On the premise of complying with national standards and ensuring stable performance in all aspects, the equipment is more practical and easy to control. Moreover, the device has the characteristics of easy installation, simple operation, and basically no need for daily maintenance.

4. The studio uses internationally recognized SUS304 # stainless steel plates with rounded corners, smooth and easy to clean.

5. Studio capacity: (350 liters) 800 * 600 * 500mm

6. Temperature range: 5-50 ℃; Temperature fluctuation: ± 0.5 ℃; Temperature uniformity: ≤ 2 ℃

Humidity range: 40% to 98% R.H; Humidity tolerance: ± 3-5% R.H

7. Power supply: 220V 50Hz Power: 1300W

Materials and characteristics:

Temperature and humidity controller: Programmable digital microcomputer controller, the product adopts comprehensive electromagnetic compatibility design and humanized menu design, and uses the company's independently developed adaptive temperature control technology for temperature control, making equipment operation completely foolproof, solving the problems of PID control technology requiring multiple parameter settings and temperature overshoot in the past, and achieving excellent temperature control effect. Microcomputer intelligent control, after setting the temperature, the instrument automatically controls the heating power and displays the heating status, with precise and stable temperature control. Overtemperature alarm and automatic cut-off of heating power supply.

Refrigerant: Environmentally friendly refrigerants are used in accordance with international environmental conventions.

Refrigeration Unit: Adopting the modular semi enclosed high-efficiency original refrigeration unit "Qianjiang" to ensure long-term and stable operation.

Humidification system: Ultrasonic atomization humidification method, with significant effect. Ensure stable and reliable operation under high temperature and high humidity conditions.

Heating method: Nickel chromium alloy electric heater

Dehumidification method: Refrigeration table cold dehumidification

Humidity sensor: A-grade PT100 platinum resistor