Jd-8m3 Temperature Humidity Chamber , Constant Temperature And Humidity Chamber

1. Product name

Product number

Walk-in constant temperature and humidity chamber

JD-8m3

1. Sample limit

This test equipment is prohibited:

Testing or storage of flammable, explosive, volatile materials

Testing or storage of corrosive substance samples

Testing or storage of biological samples

Testing or storage of samples of strong electromagnetic emission sources

Testing or storage of radioactive material samples

Testing or storage of highly toxic substances

Testing or storage of specimens that may cause flammable, explosive, volatile, highly toxic, corrosive and radioactive materials during testing or storage

3.Volume, size and weight

1. Nominal internal volume

1. Inner box size

1. Appearance Dimensions

1. Weight

1. Performance

1. Test environmental conditions

The ambient temperature is +5~+28°C, the relative humidity is ≤85%, and there is no sample under the test chamber.

GB/T 5170.2-2008 temperature test equipment

GB/T 5170.5-2008 damp heat test equipment

1. Temperature range

1. Control accuracy

Temperature: ±0.2 °C

(refers to the difference between the controller set value and the measured value of the controller)

1. Temperature fluctuation

≤0.5°C (temperature fluctuation is half of the difference between the highest temperature and the lowest temperature measured at the center point)

1. Temperature error

≤±1°C (the average temperature of the display temperature controller minus the average temperature measured at the center point)

1. Temperature uniformity

≤2.0°C (temperature uniformity is the arithmetic mean of the difference between the measured maximum temperature and the lowest temperature in each test)

1. Heating time

1. Cooling time

A sound level ≤ 70dB (A)

(Measured in a soundproof room with a ring temperature of 25 ° C and less echo; use A weighting to test the average of 8 points; each test point is 1 m away from the noise source and 1 m above the ground)

3.9. Satisfy the test method

GB/T2423.1-2008 (IEC60068-2-1:2007) Low temperature test method Ab

GB/T2423.2-2008 (IEC60068-2-2:2007) High temperature test method Bb

GJB150.4-1986 Low temperature test

GJB150.3-1986 high temperature test

GB/T2423.3-2006 (IEC60068-2-78:2007) constant damp heat test method Cab

GB/T2423.4-2008 (IEC60068-2-30:2005) Alternating damp heat test method Db

GJB150.9-1986 Damp heat test (Figure 1, Figure 2)

(The heat capacity of steel with a load of not more than 35kg/m3 per cubic meter, no active wet and hot load during the damp heat test)

1. Structural features

4.1. Thermal insulation structure

1. Outer wall material: high quality color steel plate

2. Inner wall material: high quality SUS#304 stainless steel plate

3. Box insulation material: rigid polyurethane foam + fiberglass

4.1. Air conditioning channel

1. Adopt multi-blade centrifugal circulation fan, strengthen the shaft and add high-low temperature resistant rotating blade aluminum alloy to achieve forced convection.

2. FLOW THROW air supply mode; horizontal diffusion vertical heat exchange arc cycle.

3. Adjustable side air outlet and guard return air outlet.

4.1. Test box standard configuration

1. Observation window: 1 transparent tempered glass hollow tempered glass (located on the door)

2. Lead hole: φ50mm 1 (on the left side of the box)

3. Indoor lighting on the door (high efficiency and long life energy saving lamp)

4. Host computer communication software CD, U disk interface, RS23 communication interface, misoperation hardware lock LOCK, communication cable 1

1. Door

Double-open hinged door (left hinge, right handle when facing the cabinet), with

observation window, lighting, window frame/door frame anti-condensation electric heating device, door opening size: (1.6)M

1. Control panel

Controller display, U disk interface, RS232 computer communication interface, misoperation hardware lock LOCK, power switch, emergency stop switch, status indicator and sound and light alarm device

Refrigeration unit, water tray, drain hole

Condenser, plate heat exchanger, wind motor

Freezing system safety protection device (see configuration list for details)

1. Power distribution control cabinet

IO board, machine tool transformer, ballast, intermediate relay, time relay, solid state relay, AC contactor, thermal relay, fuse, under-reverse phase relay, air switch

1. Heater

1. Nickel-chromium alloy electric wire heater

2. Heater control mode: non-contact and other periodic pulse width adjustment, SSR (solid state relay)

3. Heater power: (27) KW

4.5. Humidifier

1. External detachable boiler humidification method

2. Stainless steel armored humidifier

3. Humidifier control mode: non-contact and other periodic pulse width adjustment, SSR (solid state relay)

4. Water level control device, humidifier anti-drying device, sediment collecting device, liquid level observation window

5. Humidifier power: (18) KW

1. Automatic water supply device

2.RO membrane + activated carbon water supply filter, removable cleaning

3. High and low temperature double water level electronic level switch to prevent

malfunction

4. Water shortage and air pollution over temperature protection + ultra low water level protection + water supply timeout to ensure safe operation of equipment

1. Power cable hole and drain hole

1. Refrigeration system

1. Refrigeration compressor

1. Evaporator

1. Condenser

1. Throttling device

1. Plateheatexchanger

(usedincascaderefrigeration system)

1. Refrigerator control mode

1. The control system automatically adjusts the optimal energy-saving condition of the chiller operation according to the test conditions.

2. The evaporator cooling capacity is switched by the control system to drive the solenoid valve

3. Compressor return air cooling circuit

1. Cooling agent

1. Electrical control system

1. Controller model

OYO9256P: 5.7 inches, 640 x 480 dot matrix, TFT color LCD display

Program mode, setting method

OYO9256P Chinese and English menu (free choice), touch screen input

OYO9256P (touch type)

1. Program: up to 120 groups

2. Number of segments: up to 14400 segments

3. Number of cycles: maximum infinite loop

Temperature: adjusted according to the temperature range of the equipment

Temperature: 0.01 ° C; time: 1 min; Humidity: 0.1% RH (temperature and humidity test equipment)

0~5VDC analog signal

U disk interface, RS-232 interface, misoperation hardware lock LOCK, random computer communication software

1. Anti-integration saturation PID

2.BTC balance temperature control mode + DCC intelligent cooling capacity control + DEC intelligent electrical control (temperature test equipment)

3. BTHC balance temperature regulation and humidity control mode + DCC intelligent cooling capacity control + DEC intelligent electrical control (temperature and humidity test equipment)

With battery-protected RAM, it can save the set value, sampling value and sampling time of the device; the maximum recording time is 180 days (when the sampling period is 60S)

1. Fault alarm and cause, processing prompt function

2. Power failure protection function

3. Upper and lower limit temperature protection function

4. Calendar timing function (automatic start and automatic stop operation)

5. Self-diagnosis function.

1. Temperatureandhumidity measurement

1. Damp heat system water supply

1. Watersupply method

1. Location of water supply unit

1. Waterquality requirements

1. Safety protection device

1. Refrigeration system

1. Compressor overheat protection

2. Compressor overcurrent protection

3. Compressor high and low voltage protection

4. Compressor oil pressure protection (optional for large semi-hermetic compressors)

5. Supply temperature over temperature protection

6. Ultra high pressure relief protection

7. Air-cooled: condensing fan overheated

1. Humidification heat pipe dry burning protection

2. Water level abnormal protection

3. Water supply overtime protection

1. Test chamber

1. Adjustable over temperature protection

2. Air conditioning channel limit over temperature protection

3. Fan motor overheat protection

1. Other

1. Total power phase sequence and phase loss protection (for three-phase power supply)

2. Overload and short circuit protection

3. The cabinet is opened several times to cause the refrigeration system fault alarm protection