DRK-GDW High and Low Temperature Test Chamber

Performance indicators

1. Sample limitation:

This test equipment is prohibited:

Test and Storage of Flammable, Explosive and Volatile Substances

Testing and Storage of Corrosive Material Samples

Testing or storage of biological samples

Testing and Storage of Samples from High Electromagnetic Emission Sources

2. Volume and size:

Nominal Content Area (L): 80L/150L (according to customer requirements)

Nominal Inner Box Size (mm): 400 *wide 400 *high 500 mm/500 *500*550

Nominal Outer Box Size (mm): 1110 *770 *1500 mm

3. Performance:

Test environment conditions:

Airflow around the equipment is smooth, no high concentration dust, no corrosive or flammable and explosive gases.

Ambient temperature: 5-35 C

Relative humidity: <85%RH

4. Testing methods

Temperature range: - 40 /- 70 ~ + 150 (- according to customer requirements)

Temperature fluctuation: +0.5 C

Temperature deviation: +2.0 Temperature

Temperature change rate:

It takes about 35 minutes for 4.2.4.1 to rise from + 25 to + 150 C (no load)

It takes about 65 minutes for 4.2.4.2 to decrease from + 25 ~40 ~C (no load)

GB/T 2423.1-2001 Test A: Low Temperature Test Method

GB/T 2423.2-2001 Test B: High Temperature Test Method

High Temperature Test of GJB150.3-1986

GJB150.4-1986 Low Temperature Test

Functional Introduction

1. Structural characteristics:

Thermal insulation envelope structure:

Exterior wall: high grade steel plate paint

Inner wall: SUS304 stainless steel plate

Insulation Material: Glass Fiber

Air conditioning channels:

Fans, heaters, evaporators (and dehumidifiers), drainage devices, humidifiers, dry-burning preventers,

Standard configuration of laboratory body:

Pneumatic Balance Device

Gate: Single door. Open glass observation window with heat and dew proof for distribution on door. Test window size: 200 *300 mm. The door frame is equipped with dew-proof electric heating device to prevent frost phenomenon during low temperature operation test. Lighting lamp for observation window.

Control panel (on distribution control cabinet):

Temperature (humidity) control screen, operation button, overtemperature protection switch, timing device, lighting switch

Machinery room: Mechanical room includes: refrigeration unit, drainage device, fan, distribution control cabinet, humidification and humidity water control device.

Distribution control cabinet:

Radiator fan, buzzer, distribution board, leakage circuit breaker of main power supply

Heater: Heater Material: Stainless Steel 316L Fin Heat Pipe. Heater control mode: Contactless equal period pulse width modulation, SSR (solid state relay)

Humidifier: Humidification method: stainless steel humidifier. Humidifier material: stainless steel armor

Control mode of humidifier: Contactless equal period pulse width modulation, SSR (solid state relay)

Humidifier device: water level control device, heater anti-dry burning device

Noise: <65 DB

2. Refrigeration system:

Working mode: air-cooled mechanical compression single-stage refrigeration mode

Refrigeration compressor: original imported French "Taikang" totally enclosed refrigerator

Evaporator: Fin heat exchanger (also used as dehumidifier)

Throttle device: thermal expansion valve, capillary

Evaporative Condenser: Brazed Plate Heat Exchanger

Refrigerator control mode:

The control system PID automatically adjusts the operating conditions of the chiller according to the test conditions.

Evaporative pressure regulating valve

Recirculation Cooling Circuit of Compressor

Energy Regulating Circuit

Refrigerants: R404A, R23

Other:

Major components adopt international high-quality brand products.

Compressor cooling fan is the original standard of Taikang, France

 3. Electrical control system:

Controller (Model): Touch Screen Control

Display: LCD Touch Screen

Operation mode: fixed value mode.

Setting mode: Chinese menu

Input: Thermal Resistance

Refrigeration system:

Compressor overpressure

Compressor motor overheating

Compressor motor overcurrent

4. Laboratory:

Adjustable over temperature protection

Ultimate Over temperature of Air-conditioning Channel

Fan motor overheating

5. Other:

Phase sequence and phase-out protection of total power supply

Leakage protection

Load Short Circuit Protection

3. Other configurations:

Power cable: one accessory of four-core (three-core Cable + protective grounding wire) cable:

Lead hole: Lead hole has diameter of 50mm, specifications, its position and quantity can be customized according to user's requirements under the condition that the box structure permits and does not affect the performance.

4. Conditions of use (guaranteed by users of the following conditions):

Venue:

Flat ground, well ventilated, free of flammable, explosive, corrosive gases and dust

There is no strong electromagnetic radiation source nearby.

There are drainage ground leaks near the equipment (within 2 meters from the refrigeration unit)

Ground load-bearing capacity of site: not less than 500 kg/m2

Keep adequate maintenance space around the equipment

Environmental conditions:

Temperature: 5 ~35.

Relative humidity: <85%RH

Air pressure: 86-106 kPa

Power supply: AC380V 50HZ

Power capacity: 3.8Kw

Requirements for storage environment:

When the equipment is not working, the ambient temperature should be kept within +0-45 C.