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IEC60068 -70℃ Walk-In Temperature And Humidity Environmental Test Chamber 6m³

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IEC60068 -70℃ Walk-In Temperature And Humidity Environmental Test Chamber 6m³

Country/Region china
City & Province guangzhou guangdong
Categories Pressure Measuring Instruments
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Product Details

 

IEC60068 -70℃ Walk-In Temperature And Humidity Environmental Test Chamber 6m³

 

Equipment Overview:

 

 

This test chamber simulates the temperature and humidity changeable environment for the products or materials. It is widely used in the adaptability test of electrical, electronics, instrument and meter and other product parts under high and low temperature and humid environment during storage, transportation and usage, to determine the temperature adaptability of the above products or materials to high and low temperature and humid environment, especially for product electrification changes in performance and mechanical properties.

It conforms to standards:

IEC60068-2-1:2007 “Environmental Testing-Part 2-1: Tests-Test A: Cold, IDT”

IEC60068-2-2:2007 “Environmental Testing-Part 2-1: Tests- Test B-Dry heat, IDT”

IEC60068-2-78:2012 “Environmental Testing-Part 2-78: Tests-Test Cab: Damp heat, steady state, IDT”

IEC60068-2-30:2005 “Environmental Testing-Part 2-30: Tests-Test Db: Damp heat, cyclic (12h+12h cycle), IDT”

 

 

 

Technical Parameter:

 

No.ProjectContent
AProduct numberSN886-6m³
BProduct brandSINUO
CChamber inner sizeW2000mm x D1500mm X H2000mm
External chamber Dimensions

Cabinet part: about 2300mm W ×2890mm D

×2350mm H

DTemperature range-70℃~+180℃(range adjustable)
Heating rate-70℃~+180℃ average heating rate throughout the process about 2~3℃/min
Cooling rate+180℃~-70℃ average cooling rate throughout the process about 0.7~1℃/min
Temperature display resolution0.1℃
Temperature fluctuation≤±0.5℃Data measured under no-load conditions
Temperature deviation≤±2.0℃
Humidity range20%-98% RH
Humidity deviation+2.0%RH / -3.0%RH
Humidity deviationBelow 75%RH≤±5.0%RH, above 75%RH≤+2/-3%R.H
Humidity fluctuation≤±2.0%R.H
Temperature and humidity control capability range chart

(Refer to the temperature and humidity controllable range chart, no moisture source or heat load)

EMotor noise≤75dB (A) (The noise detection device is measured 1m away from the equipment door)
FPower SupplyAC3¢5W 380V 50Hz (R, STN three-phase five-wire plus ground wire) (voltage fluctuation ≤±10%)
GPowerOverall 25KW
HEnergy-saving designThe PLC of the control system is used to automatically adjust the operating conditions of the refrigerator according to the test conditions. The refrigeration system can adjust the power according to the load and has compressor energy adjustment technology, which can achieve excellent energy-saving effects.
ICooling methodThe equipment adopts water-cooling type (comes with a water tower, water pump).
 
 
Structure and Material:
 

 

Overall installation

The warehouse is assembled and installed by fastening locks on site, and has a beautiful appearance. The interlayer between the inner chamber and the outer shell is filled with polyurethane foam and reinforced steel plates, which can simultaneously insulate and strengthen the inner and outer chambers. The structure is solid, the installation is convenient and quick, and the construction period is short.
Outer chamber materialStandard thickness of exterior color steel plate: 0.8mm
Inner chamber materialThe inner chamber is made of SUS#304 matte stainless steel. Thickness: 1.0mm

 

Insulation material

100mm rigid polyurethane foam and glass wool, flame-retardant and fireproof, meeting environmental requirements. The interlayer between the inner chamber and the outer shell is filled with polyurethane, which can simultaneously insulate and strengthen the inner and outer chambers. The structure is solid, the installation is convenient and quick, and the construction period is short.
Vertical boards and roof boardsMade of SUS#304 matte stainless steel (full thickness 1.0mm)
Bottom materialMade of SUS#304 embossed stainless steel anti-slip material

 

Chamber door

The exterior of the door is made of cold-rolled steel plates that are CNC cut, folded, and painted (thickness 1.2mm), and the interior is reinforced with square tubes to ensure no deformation or air leakage during long-term use. Hinged single door, in order to prevent condensation or frost on the door frame and the edge of the door during low temperature testing, the door frame and the edge of the door are equipped with electric defrosting devices.
BottomThe bottom drainage groove is 60mm wide and 30mm deep. It is sunken around the bottom perimeter. 2 stainless steel floor drains are used for the test chamber to test high temperature and high humidity to discharge condensation water.
 

 

 

 

Bottom plate

(a) Uniform load: 500kg/m2;

(b) The bottom plate bearing capacity is ensured by horizontal channel steel to ensure that the test chamber is installed on a flat surface. The test chamber bottom plate is installed with load-bearing wooden squares. A 3mm anti-slip aluminum plate is installed on the stainless steel bottom plate to ensure uniform stress on the entire bottom plate.

 

Observation window

Observation window size: Width 400*Height 600mm. The door is equipped with a heat-resistant and anti-sweat 3-layer vacuum large glass observation window. During any test, there will be no frost or condensation on the surface.

Lighting device2 lighting lamps are installed in the test chamber, which is explosion-proof and moisture-proof.

 

Lead hole

The body is equipped with 1 Φ100mm hole, 1 soft plug and 1 hole cover, which can be used for external test power cord or signal line passing through

SealingThe door seal of the test chamber is made of silicone rubber strip, which is resistant to high and low temperatures, anti-aging, and has good sealing performance.
Pressure balance windowThe pressure balance window balances the pressure inside and outside the warehouse. It prevents the door from being pushed outward when the internal pressure is too high during heating, and prevents the door from being sucked inward and unable to open during cooling. It is normally closed, and opens automatically when the pressure difference is large.
Temperature SensorUsing imported platinum PT100 temperature sensor, high accuracy
Humidity SensorAdopt high-sensitivity humidity sensor with high accuracy and long life
Air supply system

 

 

 

 

Schematic diagram of air supply

 

The air outlet adopts the circulation air return method of upper air outlet and lower air return.

 

 

Air supply characteristicsThe air is transported by the centrifugal wind wheel, and the air outlet louver adjusts the wind direction to fully ensure the uniformity inside the chamber.

 

Circulation motor

 

Using 380V asynchronous motor

 

 

 

Wind wheel

 

Multi-wing centrifugal circulation fan, high and low temperature resistant aluminum alloy blades

 

Refrigeration system

 

Refrigeration method

 

Binary cascade mechanical vapor compression

 

 

German GEA Semi-Hermetic Piston Compressor or Emerson Scroll Compressor

Compressor

 

Refrigerant

 

Non-fluorine and environmentally friendly HFC R404a+R23

 

 

 

Condenser

 

Water-cooled high-efficiency shell and tube type

 

 

Evaporator

 

High-efficiency multi-section aluminum alloy fin evaporator (thickened fin type)

 

Other accessories

They are all high-quality products of international first-line brands (picture on the right: filter dryer)

 

DehumidificationFreezing and dehumidification by the refrigeration system (the air in the box passes through the evaporator at a temperature lower than the dew point, and moisture is precipitated)
Heating and humidification system
Heating tubeElectric heating, high-quality nickel-chromium alloy electric heating wire type, PID pulse width modulation control SSR automatically adjusts the heating power.
Control methodThe controller output signal is used to achieve high-precision contactless switch control through SSR solid state relays.
Humidification tubeBoiler type electric heating, high-quality nickel-chromium alloy electric heating wire type plus SUS304 armor, PID pulse width modulation control SSR automatically adjusts the heating power. Steam is injected into the test chamber after humidification
Control methodThe controller output signal is used to achieve high-precision contactless switch control through SSR solid state relays.
Control system and control circuit

 

Controller

It adopts cold-balanced programmable color touch screen temperature and humidity controller "7-inch" Chinese and English true color touch screen human-machine interface (screen conversation type)
 

 

 

 

Screen display function

 

 

Dsiplay resolutionTemperature 0.01℃; humidity 0.1%; time 1min
Running modeProgram running, fixed value running

 

Program capacity

Fixed value operation time can be set up to 9999h59m (setting 0 means continuous operation without time limit);

Usable program capacity: maximum 120 groups;

Usable memory capacity: 120 steps per group;

Repeatable command execution: Each command can be executed up to 999 times.

Setting methodHuman-machine dialogue mode, using touch input and control

 

Communication interface

Can be connected to a computer to display curves and collect data (the computer is not included)

RS-232, RS-485 and USB communication devices

 

 

USB memory cardPlugable USB flash drive to download historical curves, historical data, hot-swappable function

 

Data recording method

It has a battery-protected RAM that can save the device's setting values, sampling values and sampling time; the curve recording period can be set to 30~60 seconds, and the maximum memory time stores 90 days of historical curves and historical data (when sampling).
Power-off memory functionThe power-off recovery mode can be set to: hot start/cold start/stop.
Schedule startup functionOperator can set the power-on time at will, and the machine will run automatically after the time is up when the power is turned on.
Main components of control circuitThe main components of the control circuit are all high-quality brands. Please see the main material list for a detailed list.

 

 

 

Circuit system reference diagram

 

 

Each line is normatively marked with a line number

 

Protective function

1. Comes with fuseless short circuit breaker protection switch

2. Compressor overload and overheating

3. System overcurrent/undervoltage protection device

4. Controller self-diagnosis and fault display

5. Low cooling water pressure protection

6. Power supply reverse phase protection, leakage and short circuit protection

7. Load short circuit protection

8. Safety ground terminal

9. Fan motor overheating or overload protection

10. Air pressure balance device inside and outside the box

 

 

 

Conditions of Use

1. Ambient temperature: -5℃~+28℃;

2. Relative humidity: ≤85%RH;

3. Atmospheric pressure: 80kPa~106kPa

4. No strong vibration around

5. Equipment power supply: (note that test power supply is not included)

5.1 Connect the power supply to 380VAC (±10%), three-phase wire + protective ground wire, grounding resistance ≤ 4Ω;

5.2 Maximum effective power: 25KW

6. Frequency: 50±0.5HZ

Equipment structure diagram (for reference only)

1. Single door 2. Working room

3. Humidity and heat mixing chamber, 4. Humidifier

5. Evaporator 6. Heater 7. Fan 8. Refrigeration unit 9. Cooling tower

 

 
 
Main Material List:
 
NameBrandSpecificationsOrigin
Structural part
CabinetCustomizedLibrary boardMade in China
Inner box 304 stainless steelMade in China
Circulation motorYizheng Made in China
Refrigeration part
CompressorGAE or EmersonSemi-hermetic or scroll compressorGermany or USA
CondenserZhongli Taiwan
EvaporatorZhongli Taiwan
Pressure SwitchDanfossHNSDarmark
DryerDanfossDMLDarmark
The electromagnetic valveOFFENWANGERVBB501Germany
Refrigerant and consumablesHoenywellR404A+R23USA
Control part
ControllerTATOMNT-600China
SensorSealingPT100China
SwitchSchneiderLeakage protection typeFrance
ContactorSchneiderLC1E1810M5France
HeaterCustomizedNichromeChina
Thermal relaySchneiderLRE12NFrance
Under reverse phase protectorSchneider France
Over temperature protectionRainbow5~300℃Korea
Solid state relayFotekSSRTaiwan
RelaySchneider2P,4PFrance
CableChengtiantai China
 

 

Details:

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