Three Comprehensive test Chamber, Designed with International JTM Specifications, Temperature and Humidity Control System

Control mode and characteristics: The system is designed with international JTM specifications, temperature and humidity control system, and is controlled by P.I.D.+SSR mode, which can be used stably for a long time. The system complies with MIL STD, GB, JIS, JEDEC, IEC and other test specifications.

1. Performance:  

1.1 Temperature range: -40~150°C

1.2 Temperature control stability: 0.5°C

1.3 Temperature deviation: 2.0°C

1.4 Temperature change rate: average 1.5°C/min (-40~+150°C)

1.5 Humidity range: 20%~98%RH.

1.6 Humidity control stability: 2.5%RH.

1.7 Average humidity distribution: ±3%

1. 8 Temperature and humidity control range:

2. Relevant parameters

2.1 Inner box material: stainless steel plate (SUS #304, ), stainless steel welded all over the circumference.

2.2 Outer box material: high-grade gauze brushed stainless steel plate, the bottom adopts a lifting platform and a guide rail

2.3 Insulation material: high-strength PU foam and high-density glass fiber wool

2.4 Anti-sweat parts: The heat energy of the K-type return pipe of the refrigeration system is used for sweat-proof treatment to save electricity.

2.5 Heater:

a. SUS304 stainless steel high-speed heating electric heater.

b. Completely independent system, does not affect the refrigeration and control

line.

2.6 Humidifier:

a. Adopt electronic parallel mode micro humidification system

b. The humidifier is made of SUS304 stainless steel and has a water level observation window

c. Laminar flow contact dehumidification method of evaporator coil dew point temperature (ADP).

d. The latest design is equipped with triple protection devices for overheating, overflow and pressure relief

e. The humidification and dehumidification systems are completely independent

f. The water level control adopts mechanical float water valve to eliminate electronic malfunction.

g. The water supply source (must be pure water) and drainage shall be responsible for the user unit

2.7 Air Supply and Circulation System:

a. Fan motor stainless steel extended shaft + high and low temperature resistant aluminum alloy multi-wing structure circulating fan to achieve forced convection vertical diffusion cycle. (2 sets for machines 3 and 4)

b. Adjustable side blowing outlet of the tuyere and installation of protective net return air outlet.

2.8 Door: Single door,

a. Window W200xH210mm 3-layer explosion-proof glued glass, inner glued sheet heating mist eliminator.

b. Original imported flat built-in handle

c. Hinge: original imported, can prevent the door from shaking arbitrarily, its material is SUS #304

d. PL type fluorescent lamp 5W in the box lamp, which can clearly see the test product in the box

e. High and low temperature resistant to high tensile silicone foaming tight 2 pieces

c. The output power of temperature control is calculated by microcomputer to achieve high precision and high efficiency of electricity efficiency.

2.9 Refrigeration system: Binary refrigeration system is adopted, which has good efficiency and energy saving

a. Compressor: Imported high-efficiency power-saving refrigeration compressor.

b. Welding: The whole system pipeline is tested for nitrogen welding and expansion pressure for more than 24 hours

c. Refrigerant: R-134a (high temperature section), R-404 (unary system), R-23 (binary system) environmentally friendly refrigerant

d. Condenser: Air-cooled - wavy fin type forced air supply condenser      

e. Evaporator: Slope type FIN -TUBE evaporator

f. Expansion system: refrigeration system for capacity control

g. Other accessories: original imported solenoid valve; filter driers; Refrigeration components such as expansion valves

2.10 Temperature and humidity controller: (TIME580) Imported 5.0" touch screen LCD display, Chinese/English display touch setting data input

a. Touch-type high-resolution screen, which can be arbitrarily set to fixed conditions or program conditions, and can switch between Chinese/English screens

b. Fixed conditions can be set from 0 - 9999 hours and 59 minutes

c. The programmable mode can set 120 groups of programs with different conditions at the same time, and in any group of programs, you can also intercept part of the number of segments to execute the cycle. 120 groups of test names can be planned

d. A total of 1200 different temperatures, humidities and times can be set in the program (each section can be set to a maximum of 99h 59 min), and 120 sets of programs can be arbitrarily connected in series, and the maximum number of cycles can reach 999 times

e. With a power-off memory device, the remaining procedures can be continued when the power is restored, and the function of activating and the cumulative time of machine operation can be scheduled for the machine, and the record of the warranty can be cooperated

f. Rise/Cool can be used for slope control, and has the function of self-correcting temperature and humidity reference point, with program setting curve screen, and can set the curve scale of temperature range and time

g. With TIMER SIGNAL OUTPUT RELAY, it can output the control contact required by another control program in any stage of the process (OPTION equipped)

h. Temperature sensor using DIN PT-100Ω (platinum sensor)

i. Temperature/humidity control is synchronized and coordinated by P.I.D.+ S.S.R. system, which can improve the stability and life of control components and interfaces. A total of 6 groups of P.I.D. values can be programmed, and more stable P.I.D values can be controlled in different temperature ranges

j. Touch setting, digital direct display, relative humidity %R.H. direct reading, all conditions are automatically locked by microcomputer

k. It has the function of P.I.D. automatic calculation, which can reduce the inconvenience caused by manual setting

 l. In the process of setting or operation, if an error occurs, it will provide a fault warning and response signal to help users or maintenance personnel troubleshoot in the fastest way

m. Blackout memory device for ten years

n. The controller has a recording signal output, which can be connected to a temperature and humidity logger (optional)

o. Standard RS-232C/RS-485 communication interface, long transmission distance, can be connected to PC for control and recording (optional)

2.11 Control Panel:

a. There are two light-type button-type buttons: power switch and lighting switch

b. One over-temperature protection switch

c. Power-on indicator

d. Temperature and humidity recorder (optional)

2.12 Test holes: 1 50mm hole on the left side of the body, 240mm center height, 1 silicone plug head (20mm center opening); 1 100mm flange hole on the right side, 480mm center height, connected with a leather tiger; 1 100mm hole on the right side, center height 210mm; 1 100mm hole on the right side, 80mm center height, 1 silicone plug head (2-8mm opening, 45mm center distance), 1 silicone plug head (no hole).

2.13 Safety protection device:

a. Solid-state electrotranslation (SSR) 2 groups (1 group each for temperature and humidity)

b. Over-temperature protection switch

c. Water shortage protection switch

d. The compressor of the refrigeration system is equipped with over-temperature and overload protection devices

e. Compressor pressure protection switch

f. Under-inverse over-voltage protection switch (if the power supply is single-phase, there is no under-inverting function)

g. Power and control circuit fuses

h. Fuseless switch

i. One air vent (explosion-proof pressure relief function)

 3. Accessories:

  3.1 6 pieces of wet-bulb non-woven fabric for testing

  3.2 Power cord: 1 low-impedance PVC cable 3m long                                              

3.3 Water storage tank

a. Stainless steel water tank 20L is built in the front drawer

b. 1 automatic water pump (automatically supply and transfer water from the lower tank to the upper tank)

c. 1 group of low-water level protection switches

3.4 Specimen Placement Rack:

         The box is equipped with fixed test object card slots on the top and bottom and left and right (see the attached photo for details)

4. Power supply system: The fluctuation of system power supply shall not be greater than ±10%

 5. Environment & Facilities:

  5.1 Allowable working environment temperature 5°C ~ 35°C

  5.2 Water supply (pure water): 2 kg/cm2, pipe diameter 5x8 mm, water supply water 1L/min

  5.3 Drainage: The wastewater after the use of the experiment must be discharged, and the pipe diameter is 3 pipes

6. Movement mode: the shaking table is fixed, and the incubator is moved through the guide rail on the lifting table (see figure)