Providing a stable and continuous voltage to the constant temperature and humidity test chamber is essential for ensuring its proper operation. To achieve a stable current supply, the device’s power must be correctly connected to the circuit. So, how is this done?
Before connecting the power supply of the test chamber to the circuit, first confirm whether the external power cable’s diameter meets the requirements and whether the main switch’s capacity can support the device’s full operation. Use a multimeter or other instruments to check whether the power voltage is within the normal range, typically allowing a fluctuation of ±10%. The voltage between the phase line and neutral line should be 220V, while the voltage between phase lines should be 380V.
If the voltage is normal, proceed with the following steps:
Turn off the main switch to ensure safety.
Connect the neutral wire (blue N wire) from the distribution box to the test chamber’s neutral terminal. Make sure this is a correct neutral-to-neutral connection—incorrect wiring may cause the device to malfunction or even damage its electrical components.
Connect the three-phase power supply lines (three phase lines) from the test chamber to the three terminals under the main switch in the distribution box. Tighten them securely with screws.
Ground the test chamber by connecting its grounding wire to the grounding terminal in the distribution box.
Important Notes During Connection:
Most modern test chambers are equipped with phase sequence protection. If the phase sequence is incorrect, the device may power on but the control panel will remain inactive. In this case, simply swap any two of the three phase lines under the main switch to correct the phase sequence.
After completing the wiring, turn on the power and check whether the device receives electricity and operates normally. If any issues arise, troubleshoot immediately.
The above explains “How to Connect the Power Supply of a Constant Temperature and Humidity Test Chamber to the Circuit.” We hope this article helps you understand the basic wiring process and operation. For more details about the equipment, please visit our website or consult our online customer service.
Temperature and humidity test chamber Salt spray test chamber Aging test chamber New Energy Test Chamber IP protection testing equipment Non standard customized laboratory High and Low Temperature Test Chamber Thermal Shock Test Chamber Constant Temperature and Humidity Test Chamber High and Low Temperature Low Pressure Test Chamber Salt Spray Test Chamber Rapid Temperature Change Test Chamber High and Low Temperature Alternating Humidity Test Chamber High and Low Temperature Humidity Test Chamber Low Temperature Test Chamber High Temperature Test Chamber High and Low Temperature Alternating Test Chamber Damp heat test chamber for antirust oil and grease UV Aging Test Chamber Ozone Aging Test Chamber Air-exchange Aging Test Chamber Rain Test Chamber Sand and Dust Test Chamber Sulfur Dioxide Test Chamber Mold Test Chamber Ultra-Low Temperature Test Chamber Salt Spray Corrosion Test Chamber Condensation Test Chamber HAST Test Chamber Thermal Vacuum Test Chamber Battery Explosion-proof Test Chamber battery test chamber Photovoltaic PV module UV test chamber Sunlight simulation test chamber Photovoltaic wet freezing test chamber Photovoltaic Dustproof Test Chamber
EN
中文
Pусский
Tiếng Việt
ภาษาไทย
پاکستانی زبان
