How to buy a programmable constant temperature and humidity machine, where can I know?

The constant temperature and humidity machine (constant temperature and humidity test chamber | programmable constant temperature and humidity test machine | high and low temperature alternating humidity test chamber) mainly provides constant humidity and complex alternating high and low temperature test environment and test conditions for electronic components, industrial materials and finished products in all aspects of research and development, production and inspection, and is suitable for various industries such as electronic appliances, communications, chemical industry, hardware, rubber and toys. The operation of the constant temperature and humidity machine system is realized by three interrelated systems: refrigerant circulation system, air circulation system and electric automatic control system; In the refrigerant circulation system, the liquid refrigerant in the evaporator absorbs the heat of the air (the air is cooled and dehumidified) and begins to evaporate. Finally, the refrigerant and air form a certain temperature difference, and the liquid refrigerant completely evaporates into a low-temperature and low-pressure gas state, and then is sucked and compressed by the compressor (pressure and temperature rise). Gaseous refrigerant absorbs heat through condenser (air cooling/water cooling) and condenses into liquid. Throttled by expansion valve (or capillary tube), it becomes low-temperature and low-pressure refrigerant, which enters the evaporator to complete the refrigerant circulation process. The temperature range of constant humidity and constant humidity machine is 0℃ ~ 150℃, and the humidity range is 30% ~ 98% RH. According to the test requirements, it can be divided into two types: vertical and desktop.

Chinese name

Constant temperature and humidity machine

Observe the window size

310× 270mm

Load-bearing of sample rack

≤ 30kg/layer

Door handle

Adopt unresponsive door handles.

quick

navigate by water/air

Features of auxiliary structure products Product selection National standard Sheet metal structure equipment features The humidification, dehumidification, air supply, circuit control, safety protection, working principle, matters needing attention, technical terms and implementation standards are introduced in detail.

Specifications and models?

Model 1

Model setting

Studio size mm

Overall dimension mm

temperature range

DHS- 100

450×450×500

1 150× 1050× 1750

Answer: -20℃~ 150℃

DHS-225

500×600×750

1200× 1 100× 1900

b:-40℃～ 150℃

DHS-500

700×800×900

1450× 1400×2 150

Celsius: -60 degrees ~65438 degrees +050 degrees

Spread out completely

Model 2

Volume (unit: liter)

Studio size (depth * width * height) mm

Overall dimension (D*W*H) mm

100- left

450×450×500

1200× 1000× 1650

225 left side

500×600×750

1300× 1 150× 1900

504- Left

700×800×900

1450× 1400×2 100

Spread out completely

Auxiliary structure?

1, temperature circulation system: the test chamber adopts special air-conditioning low-noise long-axis fan motor and stainless steel multi-blade impeller, which is resistant to high and low temperatures and achieves strength.

Convection vertical diffusion cycle

FR constant temperature and humidity testing machine

2. Auxiliary structure: sealing: double-layer high-temperature resistant and high-strength sealing strip is adopted between the door and the box to ensure the sealing of the test area.

Door handle: Non-reactive door handle is adopted, which makes the operation easier.

Casters: the bottom of the machine adopts high-quality movable PU wheels.

3. Observation window (effective field of view): The observation window is made of multi-layer hollow tempered glass, and the inside is glued with conductive film for heating and defrosting (clearly observing the test process).

Observation window size: 3 10×270mm (corresponding volume: 10 1L, 225L) 430×440mm (corresponding volume: 504L, 800L, 1000L).

4. Standard configuration of test chamber: test hole: installed on the left side of the machine? 50mm, used for external test of power or signal wires (the aperture and number of holes shall be specified separately before ordering).

Standard sample rack on the second floor

Bearing capacity of sample rack: ≤30kg/ layer

FR constant temperature and humidity testing machine

Equipped with condensate receiving tray, and excluded from the box.

Product features?

1, with independent intellectual property rights and design patents and mastering the core technology of environmental test chamber.

2. The control instrument adopts UMC 1200 imported from Japan, which can be monitored remotely.

3. The refrigeration system adopts the original Taikang compressor set in France and is equipped with a condensate tray.

4. The core electrical components are imported famous brands such as Schneider.

5. Follow the advanced design concept of foreign environmental test equipment and separate water and electricity.

6, shallow tank humidification, novel and unique, drawer-type water adding method, super-large water tank design.

7. Front drawer-type water supply box: 50L large capacity (portable), with high and low water level indication, detachable for cleaning.

8. A drainage groove is designed at the bottom of the working room to prevent steam condensation and protect the test workpiece to the maximum extent.

9. The lighting system adopts Philips suite, and the observation window adopts funnel-shaped design to broaden the observation field of vision.

10, unique leakage protection design, safer operation.

1 1, strive for perfection, focus on every detail and put it into use.

Product selection?

Constant temperature and humidity machine is a very professional air purification equipment. Non-professionals don't know enough about this, and often make simple choices according to the area of the dehumidified place. Places where constant temperature and humidity machines are used (such as advanced laboratories and purification workshop). ) has strict requirements on the temperature and humidity fluctuation range of its equipment. Therefore, the air purification equipment such as constant temperature and humidity machine cannot be selected simply according to the area of the use place, but the professional constant temperature and humidity machine supplier represented by the above-mentioned maritime companies should be selected according to the overall wet load of the use place. Specifically, according to the comprehensive factors such as area, floor height, initial humidity value, target humidity value, indoor airtightness, moisture dissipation source, fresh air supply and so on, the key parameters such as total enthalpy difference, dehumidification/humidification per unit time, refrigeration capacity/heating capacity are calculated, and then the comprehensive selection and matching of constant temperature and humidity machines are carried out.

National standards?

GB/T2423.3-2006

Sheet metal structure?

The box body is processed and shaped by numerical control machine tool, which is beautiful, elegant and novel, and adopts non-reactive handle, which is easy to operate.

The inner container of the box body adopts imported high-grade stainless steel (SUS304) mirror plate or 304B argon arc welding, and the outer container of the box body adopts A3 steel plate.

Using microcomputer temperature and humidity controller, the temperature and humidity control is accurate and reliable.

The Daguan inspection window is equipped with lighting, which keeps the box bright and has multiple layers of glass, so as to clearly observe the situation in the box at any time.

Equipped with an independent temperature limit alarm system, it will automatically stop when the temperature limit is exceeded, ensuring the safe operation of the experiment without accidents.

The recorder can be selected, and the printer can print and record the set parameters, and scan out the temperature and humidity change curve and 4 ~ 20mA standard signal.