PID Control Digital Constant Temperature and Humidity Test Chamber
Technical Parameters of desktop temperature &humidity chamber:
| Model | DTH-80A | DTH-80B | DTH-80C |
Internal Dimensions
WxHxD (mm) | 400X500X400 |
External Dimensions
WxHxD (mm) | 1150X1150X1050 |
| Temperature Range | (RT+10℃) ~+150℃ | 0~+150℃ | -20 ~+150℃ |
| Humidity Range | 20%~98%R.H. |
Analytic Accuracy /
Distribution Uniformity
of Temperature & Humidity | 0.1℃; 0.1% R.H / ±2.0℃; ±3.0% R.H. |
Control Accuracy of
Temperature & Humidity | ±0.5℃; ±2.5% R.H. |
| Temperature Rising / Speed Rate | Temperature rising approx. 0.1~3.0℃/min; temperature falling approx. 0.1~1.5℃/min; |
| Internal and External Material | Material of the inner box is SUS 304# stainless steel,of the outer box is stainless steel or SEE cold-rolled steel with paint coated. |
| Insulation Material | Resistant to high temperature, high density, formate chlorine, ethyl acetum foam insulation materials |
| Cooling System | Wind cooling |
| Protection Devices | Fuse-free switch, overloading protection switch for compressor, high and low voltage coolant protection switch, over-humidity and
over-temperature protection switch, fuses, fault warning system, water short storage warning protection |
| Optional Accessories | Inner door with operation hole(Optional), Recorder(optional),Water Purifier |
| Compressor | French Tecumseh Brand,Germany Bizer Brand |
| Power | AC 220V, 1∮ 3 Lines , 50/60HZ; |
| Weight (Kg) | 75 |
1.Feature with environmental test chamber:
1. Graceful appearance, circularly shaped body, surface treated with mist strips, and plane handle with no reaction. Easy to operate, safe and reliable.
2. Rectangular double-glassed watching window for the observation of the test production during the testing process.The window is equipped with sweat-proof electrical heating device that can prevent water steam from condensing into droplets, and with high brightness PL fluorescent bulbs to provide light inside the box.
3. Double-layer-insulated airtight doors, able to insulate the internal temperature effectively.
4. Water supply system that is externally connectable, convenient for refilling water into the humidifying pot and automatically recyclable.
5. The French Tecumseh brand is used for the circulation system of the compressor, capable of removing the lubricant between the condensation pipes and capillaries. The environment-protecting coolant is used for the whole series (R232,R404)
6. Imported LCD display screen is used for the control unit, capable of displaying the measured value as well as the set value and time.
7. The control unit has the functions of multiples segment program editing, and of quick or slope control of temperature and humidity.
8. Inserted mobile pulley, convenient for movement a relocation, with strong positioning screws.
2.Refrigeration/Dehumidification Systems
2-1 Refrigeration Accessories:
2-1-1 Compressor:
Vortex cascade type mechanical refrigerating system
Good refrigeration scale, low noise, low energy consumption, high efficiency.
Two compressors are used for the machine to ensure Long-term & stable operation
2-1-2 Refrigeration Evaporator:
Finned evaporators are used for increasing heat exchange efficiency by 30%.
This evaporator has the advantages of beautiful look, compact shape, and fast cooling effect.
2-1-3 Oil Separator & Refrigeration Oil: Enough high-quality refrigeration oil is most important for
Refrigeration compressor, which will directly affects its service life. If the refrigeration oil runs into
refrigeration system, especially into heat exchangers, the performance will greatly reduces. So oil
separator with best performance is provided for this machine, with stable viscosity.
2-1-4 High Efficiency Condensing Evaporator: The world advanced brazed plate heat exchanger is used for
high heat transfer intensity, also this exchanger is not easy to scale
2-2 Cooling Mode: Mechanical cooled /air cooled
2-3 Main Refrigeration Accessories: Solenoid valve, manual valve, filters, expansion valve, pressure
Controller, vibration absorber tube, diminisher, electronic expansion valve are all world famous brand.
2-4 Refrigerants: R22, R23 or R404A, which is totally environmental friendly.
3.Chamber Constructure
3-1 Console Model Chamber:
3-1-1 The workspace is located at the left side or as to the user requirements;
3-1-2 Refrigeration unit cabinet located in the right side;
3-1-3 Electric control part is placed in the refrigeration unit cabinet, with operation panel on the front Chamber exterior is made of cold rolled steel with powder-painted, interior is stainless steel SUS304 #;
3-1-4 Thermal insulation material is flame retardant polyurethane rigid foam, of 100-150mm thickness.
3-2 Refrigeration Unit Cabinet:
3-2-1 Located in the right side of the chamber, and refrigeration compressors are installed on its frame,
3-2-2 Special door for maintenance & repair is provided.
3-2-3 Acoustical boards are used for lowing noise to maximum limit.
3-3 Chamber door:
3-3-1 Single door or double door, according to customer’s requirement
3-3-2 Silicon rubber is used for high sealing effect, high / low temperature resistance, anti-aging, and good
Sealed performance.
3-5-4 Lighting Device: two interior lights of 12W/36V, moisture-proof & explosion-proof, can be directly manual switch controlled from the outside.
3-5 Chamber Bottom:
3-5-1 Height distance to the floor is 200mm; chamber base board is slightly slant with drain hole for letting out the condensed water.
3-5-2 Interior chamber floor contains many stiffeners, to enable the floor load capacity ≥500Kg / m2, wheel impact ability≥1MT;
3-5-3 Movable entry ramp is provided.
3-6 Other constructure details
3-6-1 Door knob, with safety lock
3-6-2 Stainless steel Racks at least 4 with adjustable 24 to 36 trays
Welcome our new and regular customers visit our factory about the temperature chamber, and any inquiries please feel free to contact us !
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Temperature rasing and falling 3 degree PID Control Digital Constant Temperature and Humidity Test Chamber 50 / 60HZ Images
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