IEC60068-2 Constant Temp & Humi Environmental Testing Chamber -40 To 150°C

This temperature & humidity test chamber complies with IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-78 and Clause 15 of IEC 60335 -1 and other relevant standards.

It is designed to perform cold, heat, humidity and dryness tests on electronic components, electrical products, home appliances, plastic materials and other specimens. The testing verifies product reliability during storage and transit under alternating high/low temperature and humid conditions.

Temperature and Humidity Range Scheme:

• IEC60068-2-1:2007 Environmental testing – Part 2-1: Tests – Test A: Cold (IDT)
• IEC60068-2-2:2007 Environmental testing – Part 2-2: 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 (12 h + 12 h cycle) (IDT)

The unit features a fully enclosed chamber design with the following advantages:

• Extra-wide temperature and humidity range to satisfy diverse testing requirements.
• Adopts advanced balanced temperature & humidity control system, which delivers stable heating and humidifying performance. It maintains high accuracy and excellent stability for precise environmental simulation.
• Auto-switchable refrigeration circuit: The system automatically activates the refrigeration loop based on set temperature values, enabling direct cooling even at high ambient temperatures. The cooling system is equipped with an imported hermetic compressor and air-cooled condenser unit.
• A viewing window is fitted on the chamber door for real-time observation of test samples.

Standard configuration of test chamber

Cooling system

Screen introduction

Screen display function

1. It adopts screen dialogue mode, no key input is required, and the screen directly touches the options.
2. Temperature set (SV) and actual (PV) values are displayed directly.
3. Can display the currently executed program number, segment, remaining time and number of cycles.
4. Running accumulated time function.
5. The temperature program setting value is displayed in a graphical curve, with the function of real-time display of the program curve execution.
6. Equipped with a separate program editing screen, at least 5 segments of temperature, humidity and time can be entered on each page.
7. Chinese and English can be switched at will.
8. The fault prompt screen is displayed.
9. The screen backlight can be adjusted.
10. The screen display protection function can be set to timer, TIMER or manual shutdown.

Program capacity and control functions

1. Available program groups: maximum to 120 PATTEN.
2. Available memory capacity: total of 12000 SEGMENTS.
3. Repeatable execution of commands: each command can be executed up to 3200 times.
4. The program is created in a conversational manner, with functions such as editing, clearing, and inserting.
5. SEGMENTS time setting 0~99Hour59Min.
6. Programmable timing control module device x2 sets.
7. With power-off program memory, automatic start and continuous program execution after power-on.
8. With RS-485 or RS-232 communication interface.
9. Graphic curves can be displayed in real time during program execution.
10. With automatic adjustment of freezing capacity.
11. With scheduled start and shutdown function.
12. With date and time adjustment function.
13. Key and screen lock (LOCK) function.

Controller specifications

Technical indicators:

1. 7-inch color touch screen
2. Two control modes: program/fixed value
3. Sensor type: two PT100 inputs (electronic sensor input optional)
4. Output mode: voltage pulse (SSR)/control output: 2 (temperature/humidity)/2 4-20mA analog output/16 relay outputs (passive)
5. Control signal: 8 IS control signals/8 T control signals/4 AL control signals
6. Alarm signal: 16 DI external obstacle alarms
7. Temperature measurement range: -90.00℃--200.00℃, (optional -90.00℃--300.00℃) error ±0.2℃
8. Humidity measurement range: 1.0%--100%RH, error ±1%RH
9. Communication interface: (RS232/RS485, maximum communication distance 1.2km [optical fiber up to 30km])
10. Interface language type: Chinese/English
11. Equipped with English input function
12. Can be used with a printer (USB function optional)
13. A variety of signal combination relay outputs, and the signals can be subjected to logical operations (NOT, AND, OR, NOR, XOR), referred to as PLC programming ability
14. Diversified relay control methods: parameter->relay mode, relay->parameter mode, logic combination mode, composite signal mode
15. Program editing: 120 groups of programs can be programmed, and each group of programs can program up to 100 segments

Controller technical parameters

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

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

Temperature slope: 0.1~9.9 can be set.

It has upper and lower limit standby and alarm functions.

Temperature and humidity input signal dry and wet bulb PT100x2.

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

Dry and wet bulb with automatic correction screen function