408l Programmable Constant Temperature And Humidity Test Chamber

Equipment use:

The constant temperature and humidity test chamber is suitable for electricians, electronics, instrumentation, home appliances and other products,Adaptability of parts and materials in storage, transportation and use under high and low temperature alternating temperature and humidity environment test; is all kinds of electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, gold reliability testing of test and quality control projects for genus, food, chemistry, building materials, medical, aerospace, etc.
device.

Features:

1. Balanced temperature and humidity control system (BTHC), the SSR is controlled by P.I.D., so that the heating and humidifying amount of the system is equal to the heat and moisture loss, so it can be used stably for a long time.

2. The new perfect design, high-quality appearance, the system extracts the essence of Japan and West Germany advanced technology design and manufacture.

3. It adopts full capillary and automatic load capacity adjustment system technology, which is more stable and reliable than the expansion cutting system. The temperature and humidity control is precise, and the temperature rise and fall speed is fast, stable and uniform, saving valuable time for users.

4. The PLC control mode of the refrigeration system truly achieves 30% energy saving.

5. Exclusive volume design to maximize the floor space of the venue.

Equipment performance:

1. Temperature range: -75 ° C ~ +200 ° C.

2. Temperature fluctuation: ±0.5 °C.

3. Temperature uniformity: ±2.0 °C

4. Humidity range: 20% to 98% R.H.

12. Humidity fluctuation: ±1.5% R.H.

13. Humidity uniformity: ±3.0% R.H.

14. Heating time: 0°C～+200°C≤45 minutes nonlinear no-load;
-20 ° C ~ +200 ° C ≤ 65 minutes of nonlinear no-load;
-75 ° C ~ +200 ° C ≤ 90 minutes nonlinear no-load;
8. Cooling time: +20 °C ~ 0 °C ≤ 25 minutes nonlinear no-load;
+20 ° C ~ -20 ° C ≤ 35 minutes nonlinear no-load;
+20 ° C ~ -40 ° C ≤ 65 minutes nonlinear no-load;
+20 ° C ~ -75 ° C ≤ 90 minutes nonlinear no-load;

Note:

1. Performance measured after 25 minutes of stability without test load and without shelf.

2. The temperature and humidity sensor is set at the air outlet of the circulation motor.

3. Temperature and humidity uniformity is defined as: the measured data at the geometric center point of the experimental machine at temperature and humidity.

Equipment implementation standards:

Manufacturing standard: GB/T10586-2006, GB/T10592-1989

Verification standard: GB/T5170.2-1996, GB/T5170.5-1996;

fulfill the standard:

GB2423.2-2008 (IEC68-2-2) Test B: High temperature test method;

GB2423.3-2006 (IEC68-2-3) Test CA: Constant damp heat test method;

GB2423.4-2008 (IEC68-2-30) Test CB: alternating wet heat test method;

GB2423.22-2008 (IEC68-2-14) test NB: temperature cycle test method;

GJB150.3A-2009 (MIL-STD-810D) high temperature test method;

Equipment structure:

1. Internal dimensions: 600mm*850mm*800mm

2. Chassis material:
a. Outer box material: Baosteel high-quality steel plate electrostatic spray treatment (purple blue).
b. Inner box material: SUS304# heat-resistant cold-resistant stainless steel plate or 304 mirror stainless steel plate.

3. Insulation material: Double insulation of ultra-fine glass fiber and polyurethane foam board.

4. Outer box base: National standard angle iron + GB channel steel + special anti-rust treatment of electrolytic board spray.

5. Test box door:

a. Material: Same as the test case.
b. Handle: Stainless steel handle.
c. Rear button: SUS#304
d. Window 340 × 450 × 20mm four-layer vacuum glass layer.
e. Test hole: 1 hole 50mm hole on the left side of the body, 1 stainless steel hole cover, 1 silicone plug.

6. Air circulation system:
a. Motor: AC220V 90W 1 set long axis.
b. Multi-wing wind wheel.

7. Heating system: Fin-type heat-dissipating tubular stainless steel electric heater to heat the air circulation.

8. Humidification system: U-shaped humidifier for stainless steel electric steam generation (equipped with dehumidifier and automatic water supply).

9. System noise: 60 DB or less.

10. Use power: AC1 ∮ 3W 220V ± 10%; 50HZ.

Equipment control system:

Temperature and Humidity Controller: Self-developed and deeply customized 7-inch color HD liquid crystal display by Taiwanese manufacturers, human-machine interface touch-type Ying

Direct button type programmable controller, Chinese and English display and 320×240 dot graphics wide viewing angle, high contrast LCD with adjustable backlight function
LCD controller (Chinese and English)

(Switchable in English and Chinese)

a. Controller specifications:

※ Accuracy: Temperature ± 0.1 ° C + 1 digit.

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

※ It has upper and lower limit standby and alarm functions.

※ Temperature input signal electronic temperature sensor.

※ Temperature conversion output: 4～20MA.

※ 9 sets of P.I.D control parameter settings, P.I.D automatic calculation.

b. Screen display function:

※ The screen is interactive, no need to press the key, the screen directly touches the option.

※ The temperature and humidity setting (SV) and the actual (PV) value are displayed directly.

※ The current execution program number, number of times, remaining time and number of cycles can be displayed.

※ Operation cumulative time function.

※ The temperature and humidity program setting value is displayed in a graphical curve, and the program curve execution function is displayed in real time.

※ With separate program editing screen, you can input at least 5 segments of temperature and time per page.

※ Chinese and English can be switched at will.

※ The screen can be used for backlight adjustment.

※ The screen display protection function can be used for timing, TIMER or manual setting.

c. Program capacity and control functions:

※ Program group that can be used: up to 100 PATTEN.

※ Usable memory capacity: 1200 SEGMENTS.

※ Repeatable execution of commands: up to 999 times per command.

※ The program is produced in a dialogue style with functions such as editing, clearing, and insertion.

※ SEGMENTS time setting is 0~99Hour59Min.

※ With power-off program memory, it will automatically start and continue to execute program function after power-on.

※ With RS-232 communication interface (software sold separately).

※ The graphic curve can be displayed in real time during program execution.

※ With reservation start and shutdown function.

※ With date and time adjustment function.

※ Button and screen lock (LOCK) function.

Equipment refrigeration system:

1. Freezing system: air-cooled single-stage automatic load capacity adjustment technology.

◆ Compressor and system: France imported "Taikang" brand fully enclosed compressor unit refrigeration system.

◆ Cooling method: air-cooled fan condenser.

◆ Evaporator: (Taiwan Zhongli) evaporator fin type automatic load capacity adjustment.

◆ Expansion system: (Denmark DANFOSS) Automatic capacity control refrigeration system.

◆ Refrigerant: Green environmental protection (HFC) with zero ozone coefficient. (United States) Lianxin refrigerant R-404A.

2. Freezing aids:

◆ Expansion valve (Denmark DANFOSS), solenoid valve (Japan Palace), filter (DANFOSS, Denmark),

◆ Pressure controller (DANFOSS, Denmark), globe valve (DANFOSS, Denmark), oil separator (ALCO, Europe and America),

◆ Oil pressure switch (Japan Palace), compressor refrigeration oil (American ice bear) and other refrigeration accessories are imported.

3. Provide documentation: