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Temperature & Humidity Test Chamber OTH-150DJ

OTH-150DJ is used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. It is suitable for quality testing of products such as electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical care, and aerospace.

 

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Product Detail

Standard

GJB 150.3 high temperature test GJB 150.4 low temperature test

IEC68-2-1 Test A: Cold IEC68-2-2 Test B: Dry Heat

GB 11158 "Technical Conditions for High Temperature Test Chambers" GB10586-1 "Technical Conditions for Humidity and Heat Test Chambers"

GB/T 2423.2 "Basic Environmental Test Procedures for Electrical and Electronic Products Test B: High Temperature Test Method"

GB/T 2423.3 "Basic Environmental Test Procedures for Electrical and Electronic Products Test Ca: Constant Damp Heat Test Method", etc...

 

Technical Parameters

Internal dimensions

W500*H600*D500mm

External dimensions

W780*H1720*D1490mm The actual product shall prevail;

Temperature range

-40℃~150℃

Humidity range

20%~98%R.H (Refer to the temperature and humidity control range chart)

Internal material

SUS304 Stainless steel

External material

Electrostatic spray paint or SUS304 stainless steel

Cooling System

French Taikang single stage compressor

Refrigerant

R404a(DuPont, USA)

Cooling method

Air-cooled

Controller

Self-developed 7-inch full-color touch screen controller

Heating rate

2.0℃~4.0℃/min Non-linear no-load

Cooling rate

0.7℃~1.0℃/min Non-linear no-load

Appendix

50mm wiring hole*1 set, humidifying gauze*1 pack, manual warranty card*1 copy, storage rack*2 pieces

Weight(kg)

160

Voltage(V)

AC220V

Installed power(kw)

5(Operating power 3.5KW)

Maximum current(A)

22

 

 

Specification

1. 

Application

Equipment used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. It is suitable for quality testing of products such as electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical care, and aerospace.

2. 

Sample limit

This test equipment prohibits: testing of flammable, explosive and volatile substance samples or storage of corrosive substance samples or storage of biological samples, testing or storage of strong electromagnetic emission source samples

3. Performance

3.1.Test environment conditions

3.1. Test Methods

The ambient temperature is +25°C, the relative humidity is ≤85%, and there is no sample in the test chamber

GB/T 5170.2 Temperature test equipment

GB/T 5170.5 damp heat test equipment (only damp heat type)

3.2. Temperature fluctuation

±0.5℃

3.3. Temperature deviation

±2.0℃

3.4. Humidity fluctuations

±2.5%R.H

3.5. Humidity Deviation

±3.0%

3.6. load condition

The test space is no more than three-quarters of the total space, and there is no heat source.

3.7. Punching sample holder (reference picture)

 

3.8. Temperature and humidity control reference chart

 

3.9. Meet the test standard

 

 

 

 

GJB 150.3 high temperature test GJB 150.4 low temperature test

IEC68-2-1 Test A: Cold IEC68-2-2 Test B: Dry Heat

GB 11158 "Technical Conditions for High Temperature Test Chambers" GB10586-1 "Technical Conditions for Humidity and Heat Test Chambers"

GB/T 2423.2 "Basic Environmental Test Procedures for Electrical and Electronic Products Test B: High Temperature Test Method"

GB/T 2423.3 "Basic Environmental Test Procedures for Electrical and Electronic Products Test Ca: Constant Damp Heat Test Method", etc...

4. Structure

4.1. Insulation layer structure

 

Outer wall material: electrostatic spray paint or 304 stainless steel Inner wall material: 304 stainless steel

Box insulation material: flame retardant and fireproof rigid polyurethane foam Door insulation material: flame retardant and fireproof rigid PU polyurethane foam

4.1. air conditioning channel

Up and down air outlet, centrifugal circulation motor

4.2. Test box standard configuration

The visible window area is about L220xH250mm with three vacuum layers;

Lighting lamp in the box, wiring lead hole: 1 set of φ50mm;

4.3. Door

Single door, left door, observation window, lighting, window/door frame anti-condensation electric heating device;

4.4. Control Panel

Controller display, running indicator light, power button switch, USB data download interface

4.5. mechanical room

Refrigeration unit, water tray, drain hole, etc.

4.6. Power distribution control cabinet

Power distribution board, cooling system

4.7. Heater

High-temperature insulating ceramic heating wire (fast heating speed, small inertia, etc.)

4.8. Humidifier

Steam humidification system, circulation through the air duct system

4.9. Power cord hole and drain hole

located on the back of the device

5. Cooling System

6.1 Refrigeration Compressors

 Fully enclosed compressor imported from France Taikang

6.2 Evaporator

 

  Finned tube evaporator (double as dehumidifier)

6.3Condenser

 

     Air-cooled finned tube condenser    

6.4  Expansion system

Volume Control Refrigeration Systems (Capillary or Expansion Valve)

6.6 Chiller control method

The controller of the control system automatically adjusts the operating conditions of the refrigerator and the evaporation pressure regulating valve according to the test conditions.

Compressor return air cooling circuit.

6.7 Refrigerant

American DuPont R404a

(environmentally friendly, ozone depletion index is 0)

 

7.Screen controller

Zhenghang independent research and development program (hardware customization)

    

7.1 Features of temperature and humidity controller

Zhenghang independently developed a 7-inch touch screen control system,

Chinese and English operation interface, with 110 groups of programs and 5000 segments of memory,

Each section is 999Hour59Min, which can be divided and set arbitrarily and has multiple sets of PID control functions.

7.2 Controller Specifications

Accuracy: temperature ±0.01℃+1digit, humidity ±0.1%R.H+1digit

Resolution: temperature ±0.01℃, humidity ±0.1%R.H.

Temperature slope: 0.1 ~ 9.9 can be set.

With upper and lower limit standby and alarm function.

Temperature and humidity input signal wet and dry bulb PT100x2.

15 groups of P.I.D control parameter settings, P.I.D automatic calculation.

Dry and wet bulb automatic correction.

7.3 Screen display function introduction

     

Temperature and humidity setting (SV) and actual (PV) values are directly displayed.

It can display the current program number, segment, remaining time and cycle times.

Running cumulative time function.

The set value of the temperature and humidity program is displayed as a graphic curve, and it has the function of real-time display of the program curve execution.

It has a separate program editing screen, and each page can input at least 5 segments of temperature, humidity and time.

Chinese and English can be switched at will. The fault prompt screen is displayed. The screen can be adjusted for backlight.

The screen display protection function can be set as timing, TIMER or manual shutdown.

Available program groups: up to 110 PATTEN.

Usable memory capacity: 5000 SEGMENTS in total.

Repeatable commands: each command can be up to 999 times.

The production of the program adopts a conversational style, with functions such as editing, clearing, and inserting.

SEGMENTS time setting 0~999Hour59Min.

Programmable sequence control module device.

With power-off program memory, it will automatically start and continue to execute the program after power is restored.

Graphical curves can be displayed in real time during program execution.

It has the function of automatically adjusting the freezing capacity.

With scheduled start and shutdown functions.

Button and screen lock (LOCK) function.

8 Safety device

8.1 Refrigeration System Protection

●Compressor overheating         

●Compressor overcurrent     

●Compressor oil pressure overpressure protection  

●Condensing fan overheated

8.2 Chamber protection

●Adjustable over-temperature protector    

●Air conditioning channel limit over temperature  

●Fan motor overheating

8.3 Other protection

●Leakage Protection         

●Heating and humidification dry burning protection    

●Overload and short circuit protection   

●Over-temperature power-off protection    

●Water tank protection

9 Appendix

9.1   USB Interface (standard configuration)

The controller can download historical curves and historical data. The historical data is saved in Excel format, and the required data can be downloaded by date. The historical data is saved in the form ofJPG pictures, which can be enlarged or reduced according to the needs, and then downloaded.

9.2 Remote control system and mobile APP control (requires optional function)

 

10Transportation

The test box is integrated and transported as a whole; (short-distance self-delivery, long-distance logistics)

10.1 Size

10.2 Weight

Maximum shipping dimensions (without packaging): see selection table "Dimensions"

Maximum transport weight (without packaging): see selection table "Weight"

11 Conditions of Use

The user guarantees the following conditions

12.1 Installation site

The ground is flat and well ventilated

No strong vibration around the device

There is no strong electromagnetic field around the device

No flammable, explosive, corrosive substances and dust around the equipment

Appropriate use and maintenance space is reserved around the equipment, as shown in the figure below:

 

 

A:≥10cm

B:≥60cm

C:≥60cm

D:≥150cm

12.2 Environmental conditions

Temperature: 5℃~30℃ Relative humidity: ≤85% Air pressure: 86kPa~106kPa

12.3 Humidification water

Bottled drinking water or distilled water, not unfiltered tap water;

12.4 Power supply conditions

power supply

 

 

 

AC220V single phase (must be connected to protective ground)

Allowable voltage fluctuation range: ±10% V

Frequency: 50Hz

The grounding resistance of the protective ground wire is less than 4Ω

The user is required to configure an air or power switch of corresponding capacity for the device at the installation site, and this switch must be used independently for this device (not for use with sockets)

 

 

 

 

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