How much is the temperature shock box

2. Sample limitations

This experimental equipment prohibits:

Testing or storage of samples of flammable, explosive, and volatile substances

Testing or storage of corrosive substance samples

Testing or storage of biological samples

Testing or storage of strong electromagnetic emission source samples

Testing or storage of radioactive material samples

Testing or storage of highly toxic substance samples

The testing or storage of samples that may produce flammable, explosive, volatile, highly toxic, corrosive, and radioactive substances during the testing or storage process

3. Volume, size, and weight

3.1. Nominal internal volume

125L

3.2. Box size in the testing area

W500mm × D500mm × H5O0mm(Deep)×wide×High)

3.3. machine overall size

about2200mm×1650mm×2020mm(Deep)×wide×High)

3.4. Weight

1300KG

4. performance

4.1. Test environment conditions

Under the conditions of an ambient temperature of+5~+28 ℃, relative humidity ≤ 85%, and no sample in the test chamber

4.2. test method

GB/T 2423.1-2001、GB/T 2423.2-2001、GB/T 2423.22-2001、GJB 150.3-2001

4.3. Temperature range in high and low temperature zones

1.High temperature zone: 60 ℃~200 ℃

2.Low temperature zone: -10 ℃~-70 ℃

3.Testing area: 150 ℃~-60 ℃

4.4. Temperature testing range

1.High temperature: 60 ℃~150 ℃

2.Low temperature: -10 ℃~-65 ℃

4.5. High and low temperature conversion time

≤5S

4.6. High and low temperature recovery time

3~5min(Under non-linear no-load conditions)

4.7. Control accuracy

Temperature: ± 0.2 ℃

(Refers to the difference between the set value of the controller and the measured value of the controller)

4.8. temperature fluctuation

≤ 0.5 ℃ (measured high with temperature fluctuation as the center point)Temperature and lowHalf of the temperature difference

4.9. Temperature error

≤± 1 ℃ (the average temperature displayed by the studio temperature controller minus the average temperature measured at the center point)

4.10. Temperature Uniformity

≤ 2.0 ℃ (temperature uniformity refers to the measured high and low temperatures during each test)Arithmetic mean of temperature difference

4.11. Heating rate in preheating zone

≥ 3 ℃/min (non-linear)

4.12. Cooling rate in the pre cooling zone

≥ 2 ℃/min (non-linear)

4.13. operating noise

ASound level ≤70Db(A)

(At ambient temperature25℃, measured in soundproof rooms with low echo; adoptAWeight calculation, testing8The average value of individual points; Horizontal noise source at each testing point1Meters, height above the ground1rice)

4.14. Meet the test method

GB/T2423.1-2008(IEC60068-2-1:2007)Low temperature test methodAb

GB/T2423.2-2008(IEC60068-2-2:2007)High temperature test methodBb

GB2423.22-87Temperature change test method

GJB150.5-86Temperature shock test

GJB360.7-87Temperature shock test

GJB367.2-87Temperature shock test

(The load per cubic meter shall not exceed35kg/m3The thermal capacity of steel, without active moisture and heat loads during wet heat testing)

4.15. Design load

not greater than35kg/m3Heat capacity of steel, (If the thermal load exceeds this range, please explain in advance)

5. structural characteristics

5.1.Thermal insulation enclosure structure

1.Outer wall material: high-quality heat-resistant and cold resistant stainless steel plate (or color steel plate with electrostatic spraying)

2.Inner wall material: high-quality heat-resistant and cold resistant stainless steel plate

3.Box insulation material: rigid polyurethane foam+fiberglass

5.2.Air conditioning channel

1. Adopting a multi blade centrifugal circulating fan, reinforced with high and low temperature resistant rotating blades made of aluminum alloy, to achieve forced convection.

2. FLOW THROWAir supply method; Horizontal diffusion, vertical heat exchange, arc-shaped cycle.

3. The program automatically controls the high-speed cylinder to drive the switching of high and low temperature air supply gates.

5.3.Standard configuration of test chamber

1.Mobile wheels:6a

2.Fixed foot cup:4One (height adjustable)

3.Sample rack: Stainless steel sample rack2Layer, hook8One, load-bearing capacity(uniform distribution):25kg/layer

The cumulative total load capacity of the samples in the box shall not exceed:60kg）

4.Upper computer communication software CDUDisk interfaceRS23Communication interface, hardware lock due to misoperationLOCKCommunication cables1article

5.Lead hole (located on the left side of the box):50mm 1Option (optional)

5.4.door

Single hinged door (facing the box, left hinge, right handle)

5.5. Control Panel

1.Controller display screen

2.UDisk interface

3.RS232Computer communication interface

4.Mistakenly operating hardware lockLOCK

5.power switch

6.Emergency stop switch

7.Status indicator light and sound and light alarm device

5.6.machine room

Refrigeration unit, water tray, drainage hole

Condenser, plate heat exchanger, air transport motor

Freezing system safety protection device (see configuration list for details)

5.7 .distribution control cabinet

IOBoard, machine tool transformer, ballast, intermediate relay, time relay, solid-state relay, AC contactor, thermal relay, fuse, undercurrent phase relay, air switch

5.8.heater

1.Nickel chromium alloy electric wire heater

2.Heater control method: contactless equal period pulse width modulation,SSR(Solid state relay)

3.Heater power:[A1]21KW

5.11.Power cord hole and drainage hole

The power cord hole is located above the box, and the drainage hole is located at the back of the box

6. refrigeration system

6.1.working method

Adopting binary cascade refrigeration method

6.2.refrigeration compressor

Fully enclosed (semi enclosed) low-noise piston compressor

6.3.evaporator

External finned and internally threaded tube heat exchanger (customized with high-quality copper and clear water aluminum film special process)

6.4.condenser

Air cooled: external finned internal threaded tube heat exchanger (water-cooled: shell and tube heat exchanger)

6.5.throttling device

expansion valve+capillary tube

6.6.Defrosting device

The program automatically controls the defrosting cycle (which can be manually controlled), using the temperature control principle of hot defrosting,PIDInfinite adjustment of compressor exhaust inlet volume, efficient and energy-saving

6.7.Plate heat exchanger

Stainless steel brazed plate heat exchanger

6.8.Control mode of refrigeration machine

1.The control system automatically adjusts the energy-saving operating conditions of the refrigeration machine according to the test conditions

2.The cooling capacity of the evaporator is driven by the control system to switch the solenoid valve

3.Compressor return air cooling circuit

6.9.manufacture cold agent

R404a/R23The ozone depletion index is0，R23Used for cascade refrigeration systems)

7. electric control system

7.1.Controller Model

monitor

7Inches,

TFTcolorfulLCDmonitor

Operation mode

programmatic approach

Setting method

OYO9226SChinese and English menus (freely selectable)

Touch screen input

Program capacity

OYO9226S(Touch sensitive)

1.Program: High120group

2.Number of loops: High infinite loops

set the scope

Adjust according to the temperature working range of the equipment

resolution

temperature0.1℃； Time:1min

input

TType thermocouple

communication function

UDisk interfaceRS-232Interface and misoperation hardware lockingLOCKRandomly give away computer communication software

Control method

1.Anti integral saturationPID

2.BTCBalanced temperature control method+DCCIntelligent cooling capacity control+DECIntelligent electrical control

Curve recording function

Equipped with battery protectionRAMCan save the set values, sampling values, and sampling time of the device; Record the time as180sky(When the sampling period is60Stime)

Supplementary functions

1.Fault alarm and cause, code processing prompt function

2.A fail-safe mechanism

3.Upper and lower temperature protection function

4.Calendar timing function(Automatic start and automatic stop operation)

5.Self diagnostic function.

Software usage environment

(Provided by the user)

IBM PCCompatible machine,PII or aboveCPU，128MThe above memory, withRS-232communication interface

7.2.temperature measurement

American OmegaTType thermocouple temperature sensor

8. Safety protection device

8.1.refrigeration system

1.Compressor overheat protection

2.Compressor overcurrent protection

3.Compressor high and low pressure protection

4.Compressor oil pressure protection (optional for large semi enclosed compressors)

5.Liquid supply temperature over temperature protection

6.Ultra high pressure relief protection

7.Air cooled: condensing fan overheating (water-cooled: water tower motor overcurrent protection)

8.2.test chamber

1.Adjustable over temperature protection

2.Air conditioning channel over temperature protection

3.Fan motor overheat protection

8.3.other

1.Emergency stop protection

2.Main power phase sequence and phase loss protection

3.Overload and short circuit protection

4.Multiple opening of the box causes refrigeration system malfunction alarm protection

5.Air compressor insufficient gas supply alarm protection

9. Other configurations

9.1.power cable

Five core (three-phase four wire)+Protective earth wire) cable1Article (about)4Meter long)

9.2.main power switch

NFBcircuit breaker

10. transportation

The test box is of integral type and can be transported as a whole

10.1. size

Shipping dimensions (excluding packaging): Refer to3.3External dimensions

10.2. weight

Shipping weight (excluding packaging): Refer to3.4Weight "

11. Terms of Use

The user guarantees the following conditions

11.1. installation site

1.The ground is flat and well ventilated

2.There is no strong vibration around the equipment

3.There is no strong electromagnetic field around the equipment

4.There are no flammable, explosive, corrosive substances or dust around the equipment

5.There is appropriate space for use and maintenance around the equipment, as shown in the following figure:

A：≥30cm B：≥80cm C：≥60cm D:≥60cm E：≥30cm

11.2. environmental conditions

1.temperature5℃～28℃

2.Relative humidity: ≤85%

3.Air pressure:86kPa～106kPa

11.3. Power supply conditions

power supply

1.Voltage range:3∮AC（380±38）V

2three-phase four-wire+Protect the ground wire

3.Allowable fluctuation range of frequency:（50±0.5）Hz

4.The grounding resistance of the protective grounding wire is less than4Ω

5.Require users to configure corresponding capacity air or power switches for the equipment at the installation site, and this switch must be independently used for the equipment

11.4.

current

power consumption

132A

50KW

(at ambient temperature+25Data obtained from testing at ℃, without samples, and stable operating conditions for one hour)

11.5. other

Opening the door of the test chamber during the experiment can cause fluctuations in temperature and humidity inside the chamber; If the door is opened multiple times or for a long time during the experiment, or if the test sample emits moisture, it may cause the refrigeration system heat exchanger to freeze and fail to function properly.