Overview
GDJW-500E low/high temperature test Chamber is a HZAOC brand product, suitable for electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use of adaptability test, as well as temperature gradual change test, but also on electronic components stress screening test.
Features
1. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate sprayed, the thermal insulation material is ultra-fine Glass thermal insulation cotton
2. Door sealing with double-decked silicone rubber sealing material
3. The observation window is multi-layer conductive film tempered hollow Glass, size 200 × 300mm, built-in special heating wire frost-proof, with lighting
4. The side of the box is equipped with φ 50mm test hole, and the stopper is silicone rubber low foam material
5. There is an air conditioning cabinet at the back of the studio, and evaporators, electric heating devices, humidifiers, fans and other equipment are installed
6. The temperature sensor is placed in a trend, and the air supply method is the upper air supply and the lower air return.
7. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia and long service life
8. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant
9. Control system adopts High Accuracy Digital Temperature Controller, PT100 Temperature Sensor, Solid State Relay Zero Crossing Trigger
10. Safety protection measures are in place, including phase loss protection, over-temperature protection, leakage protection, etc
Principle
The test Chamber achieves temperature control through the heating system and refrigeration system in the air conditioning cabinet. The heating system adopts a porcelain frame nickel-chrome wire electric heating device, which is controlled by a solid-state relay by outputting a controllable pulse duty cycle PID signal from the meter; the refrigeration system adopts a French "Taikang" fully enclosed Compressor unit, which works with imported brand refrigeration parts and R404A environmentally friendly refrigerant. The temperature sensor monitors the trend temperature, and the Control system automatically adjusts the heating and cooling output according to the set parameters to achieve accurate temperature control.
Applications
Electrical, electronic products, components, parts and materials of high and low temperature environmental adaptability test, temperature gradual change test, stress screening test
Standards
GB/T2423.1-2001、GB/T2423.2-2001、GB/T10592-2008、GB/T10589-1989、GB/T11158-1989、IEC68-2-1、IEC68-2-2
Notice
• Ambient Temperature should be maintained at 5~ 28 ℃
• Environmental humidity should be ≤ 85% R.H.
• Power supply voltage is AC380 (+/- 10%) V/50HZ three-phase five-wire system
• Need to use deionized water or purified water as a source of water
• When the circulating fan is not started or overloaded, the refrigeration unit and heating system cannot be started
• The refrigeration unit will be prohibited from operating when the unit is ultra-high voltage and overloaded
• The equipment is equipped with an independent over-temperature protector to ensure the safety of the equipment in the event of a main controller failure
