Temperature and humidity control cabinet

1.1 Purpose

The function of this constant temperature and humidity storage box/cabinet is to provide storage space with constant temperature and humidity, low temperature and humidity, normal temperature and humidity, etc., and meet the requirements of relevant storage product standards, suitable for long-term storage. It is suitable for the storage of various products with temperature and humidity requirements, such as electrical, military, electronic products, semiconductors, new energy, automobiles, chemical medicine, scientific research institutions, laboratories, archives and museums, etc.

1.2 System

    The storage box includes a box body, a refrigeration system, a heating system, an air duct system, a temperature and humidity control system, a safety protection device, etc.

1.3 Features

The storage box system is designed and manufactured using clean environment model technology, adopts energy regulation technology, energy-saving design, good sealing, high strength, easy maintenance, and a standardized integral structural box that conforms to normal aesthetics; it has the advantages of easy operation, high degree of automation of the control system, stable system operation, and long trouble-free operation time.

1.4 Satisfaction of standards

IPC/JEDECJ-STD-033B humidity control meets

GB/T2423.3-2006 (IEC60068-2-78:2007) Constant humidity Cab

GB5170-85 and JB/T5520-91/conform to national standard GBT30435-2013

1.5 Model Overview

Model: AMST-650WS

Volume: 650L

Temperature range: 5-50℃

Humidity range: 30-80RH%

      project

content

2.1 Studio volume

  900mm×600mm×1200mm (W×D×H)

2.2 Dimensions: Approx.

  1020mm×800mm×1800mm (W×D×H)

2.3 Temperature range

  5℃～50℃ (fixed point adjustable)

2.4 Temperature Fluctuation

  ±1.0℃(no load, steady state)

2.5 Temperature digital display accuracy

  0.1℃

2.6 Humidity range

  30～80%RH (fixed point adjustable)

2.7 Humidity Fluctuation

  ±5.0%R (no load, steady state)

2.8 Humidity digital display accuracy

  0.1%RH

2.9 Total Power

  About 2.3KW

2.10 Operating power

  About 1-2.3KW (depending on the heating and cooling rate, related to turning on the refrigeration unit)

2.11 Power Supply

  220V±10%V；50Hz；

2.12 Power Cord

  1.5 m

project

content

3.1 Structural method

The overall structure is made of A3 iron plate sprayed with plastic and SUS304 stainless steel plate. Observed from the front of the door, there is a studio on the top, a refrigeration unit and a dehumidification unit on the bottom, a temperature and humidity control device on the top, and a humidifier on the other side. There is an air duct at the rear of the box, and a circulating fan, heater, evaporator, defrosting device, etc. are installed in the rear air duct.

3.2 Material composition

1) Outer wall material: 3A cold-rolled steel plate, double-sided electrostatic spraying, pearl white color

2) Inner wall material: SUS304 mirror stainless steel

3) Insulation material: rigid polyurethane foam/glass wool

3.3 Gate

1) The main door of the studio is a suction door that opens to the left at the front.

2) Door opening size: 900×1200 mm (width×height), door frame with two magnetic adsorption sealing strips and anti-condensation electric heating device.

3) Color is pearl white

3.4 Observation Window

Located in the middle of the storage box door, it has a large observation window and frost-proof double-layer glass.

3.5 Test lead hole

One Φ50mm lead hole, located on the side wall of the box (optional).

3.6 Lighting

There is a lighting lamp on the top of the observation window, which is controlled by the upper central control switch, making it convenient to operate at night or in dark places.

project

content

4.1 Control Methods

Forced air circulation balances temperature and humidity.

4.2 Air circulation device

Centrifugal fan, long shaft external motor drive.

4.3 Heating method

High temperature heating components are installed in isolation, which will not cause harm to surrounding objects or personnel, PID adjustment, actuator: solid state relay.

4.4 Air cooling method

Finned evaporator.

project

content

5.1 Temperature and humidity measuring device

Use high-precision A-level PT100 and Samsung sensors for temperature and humidity measurement sensing

5.2 Heating composition

1. Nickel-chromium alloy electric heating wire heater

2. Heater control method: contactless equicyclic pulse width modulation, SSR (solid state relay)

5.3 Temperature and humidity controller

1. Identifier definition

T1 appointment: When in the appointment timing state, T1 flashes and the [(2) display window] displays the appointment countdown time;

T2 heating: When heating has output, T2 lights up;

T3 compressor: When the compressor starts, T3 lights up; when the compressor is waiting for the start delay, T3 flashes;

T4 humidification: When humidification has output, T4 lights up;

T5 daytime: When entering daytime mode, T5 lights up;

T6 Night: When entering the night mode, T6 lights up;

T7 timing: When entering the running timing state, T7 flashes, and [2 display window] displays the timing countdown time;

T9 open door: When the door is opened, T9 lights up;

T10 alarm: T10 lights up when there is a temperature or humidity alarm; T10 flashes when entering low temperature or high temperature protection state;

T11 lock screen: When entering the lock screen state, T11 lights up;

T12 water addition: When the water pump has output, T12 lights up;

T13 defrost: When defrost has output, T13 lights up;

T15 lighting/: When the lighting has output, T15 lights up;

2. Display window

【（1）Display window】Display: cycle or segment value; 【（2）Display window】Display: timing or time setting value;

【（3）Display window】Display: Temperature measurement value; 【（4）Display window】Display: Temperature setting value;

【（5）Display window】Display: Humidity measurement value; 【（6）Display window】Display: Humidity setting value;

【（7）Display window】Displays: light intensity setting value or heating output power.

3. Button definition

【Lock Screen】Key: In normal display state, long press this key for 2 seconds to manually lock or unlock the screen. 【Illumination】Key: In normal display state, click this key to turn on or off the lighting. 【Set】Key: In normal display state, click this key to enter the setting value modification interface, long press this key for 3 seconds to enter the parameter table modification interface. 【Shift】Key: In setting state, click this key to shift and flash the setting value. In normal display state, if running in 【Day/Night】 mode, you can switch between day and night operation states; if running in program mode, you can switch between display segments or cycles. 【Increase】Key: In setting state, click this key to increase the setting value. 【Decrease/Defrost】Key: In setting state, click this key to decrease the setting value; in normal display state, long press this key to manually turn on the defrost function. 【R/S】Key: In normal display state, click or long press this key to start or stop the operation of the controller.

project

content

6.1 Configuration

1) Compressor: French imported brand Taikang fully enclosed low-noise rotor compressor

  2) Cooling method: air cooling

  3) Other refrigeration accessories are all from well-known brands.

6.2 Refrigerator Control

According to the storage conditions, the control system automatically adjusts the operating conditions and cooling capacity of the refrigerator to ensure that the compressor works in a suitable state and extend the service life of the compressor.

6.3 Working method

   The unit adopts a first-stage compression/dedicated pressure relief valve at 0℃~-50℃

6.4 Working medium

Environmentally friendly refrigerant R404a

6.5 Vibration and noise reduction

Special fixing and unit enclosure measures for refrigeration machines.

project

content

7.1 Humidifier

1. External detachable humidification method

2. Atomizing humidifier

3. Control method: induction signal control

4. Clear water level observation

5. Humidifier power: 0.6KW

7.2 Humidification water source

Deionized water, distilled water or purified water

7.3 Dehumidification method

Condensation dehumidification/integrated high-performance control unit, using dry air to continuously circulate and inject to achieve constant humidity in the cabinet

project

content

8.1 Studio

1) Independent studio over-temperature protector

2) Fan overheat protection

8.2 Refrigeration System

1) Compressor overpressure

2) Compressor overcurrent

3) Compressor overheating

4) Exhaust temperature protection

8.3 Power System

1) Protection against power phase loss and phase sequence error

2) Electrical thermal overcurrent protection

8.4 Others

1) Shell grounding protection

             model

AMST-50WS

AMST-100WS

AMST-150WS

AMST-258WS

Working size (D*W*H)

350*350*410

410*420*600

400*470*820

460*520*1080

External dimensions (D*W*H)

550*470*960

610*550*1150

600*600*1360

660*650*1650

model

AMST-320WS

AMST-500WS

AMST-650WS

AMST-1000WS

Working size (D*W*H)

400*800*1000

500*900*1150

600*900*1200

800*1100*1200

External dimensions (D*W*H)

600*920*1550

700*1020*1720

800*1020*1800

1000*1220*1800

Performance
parameters

Temperature range

5℃～50℃

Humidity range

35%～70%RH