Structure and material

External chamber

Electrostatic spraying of cold rolled steel plate

Inner chamber

SUS304# stainless steel plate.

Insulating layer

Hard polyamine foam + ultra-fine eco-friendly glass fiber cotton

Door

Single door to the left

Observation window

The single door is equipped with a 3-layer vacuum large glass observation window (30*40CM);

The door frame is equipped with electric heating (automatic adjustment) anti-frost and anti-condensation device.

Test hole

50 mm or 100 mm on the left of chamber (stanadard Qty: 1)

Glove holes

Optional

Sample racks

2 pieces

Seal

Original imported silicone seal

Pressure balance port

1/2 inch drainage shared type

Light

9W LED energy-saving lamps is attached to the observation window.

Comunication way

USB interface(standard), RS-232 or Crystal Head are optional

Color

There is no special requirement for color, ITM-LAB universal color will be used (reference picture)

Cooling System

Air cooling method

Piston reciprocating compressor

Compressor

France Tecumseh, Japan Hitachi ,Germany Bitzer or other

Type and quantity depend on test conditions

Refrigerating fluid

Non-fluorine environmental refrigerant (DuPont)

HFC R404A or R23

Condenser

Air cooled efficient forced convection fins.

Evaporator

High efficiency multi-stage finned evaporator with hydrophilic membrane (fin thickened)

Oil separator

Henry

Expansion valve

Danfoss thermal expansion valve

Magnetic Valve

Saku Palace and Danfoss in Japan

Sight glass

Danfoss

Other accessories

All are international brand quality products

Dehumidification

1. Cryodehumidification by refrigeration system (the air in the box passes through the evaporator at a temperature lower than the dew point, and the water is precipitated).

System features

1 Adopts (BTHC) balanced temperature and humidity regulation mode, automatically switches the flow rate of the refrigeration system according to different working conditions, and cuts off the redundant system in the constant section to maintain energy saving operation and cooling control.

2 Multi-stage evaporator combination, can obtain more uniform and efficient cold volume exchange efficiency and refrigeration output;

3.The flow control is automatically adjusted by the corresponding thermal expansion valve;

Heating system

Heating tube

Bare wire nickel chromium alloy electric heating tube

Control mode

High precision contactless switch control is realized by the output signal of the controller through the SSR solid state relay. (Right picture is Swiss Jiale solid state relay).

Controller and control circuit

Control mode

High precision resistive touch screen, USB external mouse control;

Display

7 "TFT true color LCD screen. (resolution 800*480)

Input force

2 sets of input, support wet and dry ball PT100 and humidity transmitter,

thermocouple T, K, E, etc

Accuracy

0.1 high precision sampling

System capacity

100 groups of programs *999 paragraphs (can cycle 999 times), the number of paragraphs required for each group of programs can be arbitrarily divided, and each group of programs can be freely linked to each other (up to 20 steps)

Operation mode

Set value (slope)/program operation mode.

Output mode

PID+SSR/SCR Automatic forward and reverse two-way synchronous output.

Software function

1.Temperature and humidity curve:

Paperless recording: built-in recording program, the controller memory can be stored, 24H operation for 300 days. Can easily generate temperature and humidity curve file automatically, And save to CSV table;

2. Perfect interface:

External USB, R232, R486 and Crystal head communication lineport: can be directly connected to the computer and printer, to achieve local data printed by the line, the USB port can be used to easily export data such as history curve.

3. Timing control:

2 sets of timing output control interface, with 10 kinds of time control mode, can provide switching signal output according to the requirements of program setting, note that only the control signal, the test power supply in the box needs to be separately connected and there is a special power supply system.

4.Fault display:

16 groups of fault alarm output, Chinese and English humanized prompt fault causes and troubleshooting methods

6. Start by appointment:

All test conditions can be set up to schedule start-up function.

7. Connect the control system.

Computer control software (CD) is included.

Main components of control circuit

The main parts of the control line are high-quality brands (right picture: French Schneider AC contactor)

Defensive function

1. Compressor overheating, overcurrent, overpressure protection,

2. Condensate fan overheat protection

3. Controller AC power supply lightning protection device

4. Box overtemperature protector (adjustable),

5. Test chamber temperature fuse pipe, air conditioning channel limit overtemperature protection

6. Centrifugal fan motor overheating protection

Seven. Total power supply phase loss, leakage, overload, short circuit protection, power distribution cabinet open protection, total power supply with no fuse protection switch.

8. Test product overtemperature protector (independent).

Working condition

1. Ambient temperature: 5℃-35℃;

2. Relative humidity: ≤85%RH;

3. Atmospheric pressure: 80kPa~106kPa

4. There is no strong vibration around

5. Power supply voltage:

5.1 Power supply: please refer the technical sheet

5.2 Cable requirements: depend on the model

6. Frequency: 50±0.5Hz, 60Hz is supported.

7. Ambient air quality requirements: does not contain high concentration of dust and flammable. Explosive gas or dust, no source of strong electromagnetic radiation nearby.

8. Do not place inflammable, explosive or volatile, corrosive gases in the box for testing or storage

9. 600mm is reserved on the left and right sides and the back of the machine for heat dissipation