GDJX Series high and low temperature alternating test chambers

Scope of application
It is used for high and low temperature environmental tests and testing in industrial and mining enterprises, laboratories, scientific research institutions, etc.

Structural features
>Mirrored stainless steel studio for easy cleaning.
>The original French "Taikang" fully enclosed compressor has stable operation and reliable operation.
>Microcomputer temperature controller, with color touch LCD screen display and PID Self-tuning function, accurate temperature control and reliable.
>The air duct circulation system consists of a low-noise inlet fan and a suitable air duct, and the temperature in the work room is uniform.
>There is a diameter of 50 on the left side of the box mm Test hole, available for external power cord and signal cord.
>This series of test chambers is suitable for humid and heat tests, high temperature tests, low temperature tests and high and low temperature gradient tests on industrial products. It has a high limit temperature (humidity) range and high actual temperature (humidity) accuracy
Features； Comply with the "Technical Conditions of Environmental Test Equipment" series of standards GB/T10586-2006（ Technical conditions of humid and heat test chamber), GB/T10589-1989（ Technical conditions of low temperature test chamber), GB/T10592-1989（ Technical conditions of high and low temperature test chambers), GB/T11158/T（ Requirements for technical conditions of high temperature test chamber).
>Optional printer
>Optional recorder
>Optional RS232/RS485 Communication interface, can be connected to the computer.

Technical parameters:

Featured Description

(1) Temperature sensor       DIN A class Φ5mm SUS Made of stainless steel PT 100×1 branch.

(2) Temperature control method   P.I.D Automatic calculation + Fuzzy control.

(3) Temperature and humidity conversion, multi-stage compensation correction for microcomputer.

(4) Display interface 7 ″TFT Touch screen, optional display in Chinese and English.

(5) Communication interface Standard 10 M/100M The Ethernet communication interface can be connected to a maximum of 16 units.

(6) Data interface  USB Data interface, used for historical data export, process parameters and setting parameters import.

(7) Humanized operation

     a. Automatic control, refrigeration compressor, temperature and electric heating output power adjustment, P.I.D Calculus control…etc.

     b. Safety self-test The safety self-test of the main system components, when an abnormality occurs, the status is indicated by the controller and stopped operating.

     c. Independent control The controller will heat up /All functions such as cooling are completely independently controlled.

Main functions

(1) Temperature display accuracy 0.1 ℃ 。

(2) Temperature control accuracy   ± 0.1℃ 。

(3) Setting screen: Key setting method, built-in operation selection (set value or program), program setting, appointment startup, program editing and other options, making it easy to operate.

(4) Programmable capacity 10 sets ×100Each section can have a time of 99 hours and 59 minutes.

(5) Loop function Each group of programs can execute 999 loopbacks.

(6) Display language English

(7) Appointment startup has the function of setting year, month, day, hour and minute.

(8) Program screen display

     a. Curve display The set value curve and actual running value curve can be displayed when the program is running.

     b. Real-time display Displays the execution program number, segments, remaining time, number of cycles, and temperature values.

     c. Output Power Display Temperature Electric Heat Output Power Percentage Display.

     d. Operation cumulative display of total operation time.

(9) Deviation value correction Temperature deviation value compensation and correction functions.

(10) I/O Self-test safety self-test function, automatic power outage protection and fault indication when abnormality occurs.

(11) Fault records display historical data of the fault, which is easy to trace, repair and troubleshoot.

(12) Three modes of power outage and return are optional. cBREAK(Interrupt )， dCOLD(Cold start )，eHOT(Hot start )。

(13) Automatic calculation microcomputer automatic calculation P.I.D. ， With 9 sets of parameters combined with solid-state relay power control, the temperature and humidity control is more accurate (proportional, integral, differential ＋Solid-state relay control method )。

(14) Temperature upper and lower limit protection The upper and lower limits of temperature protection can be set.

(15) The protection device controller monitors the safety protection system and preventive fault self-test control.

(16) Power-off memory can be stored for 10 years of power-off memory function.

(17) Operation mode selection Operation mode can be divided into program operation and fixed value operation.

(18) Screen Backlight The brightness of the screen backlight can be adjusted, and the backlight time can be set.

(19) Setting the lock setting value has a lock function to prevent people from operating incorrectly.

(20) Program naming program data can be grouped, cleared, inserted and other functions according to the test name.

three. Structure and material:

(1) Inner box material    SUS-304 Stainless steel mirror panel.

(2) External material  SPCC Cold-rolled steel plate electrostatic powder paint treatment.

(3) Insulation material, high density hard PU(Polyamine ) Foamed and ultrafine fiberglass cotton.

(4) Box Door

     a. Window Multi-layer hollow thermal mold tempered glass window with lighting, window size W *H 260*340 ( ㎜)。

     b. Door handle Flat embedded handle.

     c. Door sealing: Double-layer sealing of temperature resistant and moisture-resistant silicone strips.

     d. Opening direction: Single-opening door design, opening method from the right side to the left side.

(5) Test hole The test hole is located on the left side of the body ∮50 ㎜×1Holes, silicone plug ×1 Only.

(6) Movement and support Pullwheel movement adjustment placement position and strong bolt support fixed position *4Only (200kg/ wheel )。

(7) Shelf stainless steel bar shelf *2 Block, load 20 kg， Each floor can be adjusted in height of 50 ㎜。

Four. Temperature electric heating and circulation:

(1) Air supply method: High impedance motor and aluminum alloy centrifugal air wheel. The air supply method is a horizontal air outlet arc cycle design.

(2) Air guide plate design Adjustable arc air guide plate design effectively improves temperature and humidity uniformity.

(3) Heating system Microcomputer intelligent automatic control electric heating power balance temperature regulation +High-performance stainless steel tube heater.

five. Refrigeration system:

(1) Refrigeration device French Taikang fully sealed high-efficiency compressor +Air-cooled condenser.

(2) Heat generation load regulation Multi-stage heat exchange device with high cooling heat exchange capability.

(3) The air in the circulating box is heat exchanged through the fin-type evaporator, and the air temperature is continuously reduced, which has the effect of cooling.

(4) Anti-condensation and anti-freeze are designed with heat pipe technology to prevent condensation and anti-freeze.

(5) High efficiency refrigeration components

     a. Evaporator Fin type internal thread copper tube evaporator, aluminum heat exchanger.

     b. Condenser Fin type internal thread copper tube evaporator, aluminum heat exchanger +High flow axial heat dissipation fan.

     c. Dry Filter European Denver drying filter.

     d. Oil separator   B and C Model equipped with American Aigao oil separator

     e. Refrigerants are all made of environmentally friendly refrigerants R404a/R23。

     f. Throttle device European Denver refrigeration expansion valve.

     g. Plate heat exchange Taiwan High Power plate heat exchange.

six. Safety protection device:

(1) Circuit Breaker Fuseless switch circuit breaker.

(2) Controller internal protection

     a. Temperature sensor is open or short circuit (Overrange )。

     b. Overtemperature protection is the high and low temperature protection setting for the first layer operation.

(3) External fault detection protection

     a. Second layer protection overload protector (Temperature set 1 )。

     b. The third layer of protection is independent electronic temperature protection switch, which can set the upper temperature limit protection.

     c. Compressor protection compressor pressure protection, overload protector, and overheating protection.

(4) Failure abnormal alarm When a fault abnormality occurs, the power outage protection will be automatically issued, and the alarm sound will be displayed on the controller.

seven. appendix:

(1) Operating manual includes product instruction manual, simple troubleshooting instructions, and product maintenance instructions.

(2) Factory inspection report Nine-point temperature uniformity test correction report (Traceable third-party metrology report for measuring instruments )。

eight. Power supply: 1 Ø 220V 50Hz  3Ø 380V 50Hz

GDJX-50A GDJX-120A GDJX-250A GDJX-500A GDJX-800A

GDJX-50B GDJX-120B GDJX-250B GDJX-500B GDJX-800B

   GDJX-120C GDJX-250C GDJX-500C GDJX-800C

Nine. Ambient environment: Ambient temperature range that can be used: 5 ~35 ℃ ，Ambient temperature range for optimal performance: 15 ~30 ℃。

                              　   ▲Not used for long-term freezing and refrigeration