Analysis of Fault Alarm Principles in Constant Temperature and Humidity Chambers

Source：LINPIN Time：2025-03-31 Category：Industry News

Analysis of Fault Alarm Principles in Constant Temperature and Humidity Chambers
Over-temperature Alarm in the Chamber: The sample area sensor and the channel are equipped with over-temperature protection devices. An over-temperature protection device is also installed on the control panel. If the temperature in the test area exceeds the allowable temperature set on the panel, the equipment will shut down and trigger an alarm. The TH setting must be at least 10°C higher than the operating temperature for the equipment to function.

Sample Over-temperature Protection: If the temperature in the sample area exceeds the protection temperature set by the controller, the equipment will shut down and alarm. Normal operation can only resume after the fault is resolved and the system is reset. Sample over-temperature protection includes both upper and lower limits, which can be arbitrarily set by the user as needed.

Constant Temperature and Humidity Chambers

Fan Overheating Alarm: If the fan coil overheats, the equipment will shut down and alarm. Operation can only resume after the fault is resolved.

Fan Overcurrent Alarm: If the fan current exceeds the allowable value, the equipment will shut down and alarm. Normal operation can only resume after the overcurrent fault is repaired.

Cooling Water Shortage Alarm: If the water pressure in the cooling circulation system is insufficient, the equipment will shut down and alarm. Normal operation can only resume after the fault is resolved and the system is reset.

Refrigeration Compressor Overheating Alarm: If the compressor coil overheats or the circuit power supply is abnormal, the equipment will shut down and alarm. Normal operation can only resume after the fault is resolved.

Refrigeration Compressor Overpressure Alarm: If the refrigerant pressure in the refrigeration system exceeds the set value, the equipment will shut down and alarm. Normal operation can only resume after the fault is resolved and manually reset.

Power Phase Loss or Phase Sequence Alarm: If the external power supply experiences phase loss or phase sequence reversal, the equipment will shut down and alarm. Normal operation can only resume after the fault is resolved.

Previous article: Constant Temperature and Humidity Test Chamber Detailed Introduction

Next article: How to Keep an Aging Test Chamber in Optimal Condition?

News Recommendation

25.04

Upgraded & Enhanced! The New Generation Composite Sulfur Dioxide Test Chamber Helps You Move Forward Steadily

This equipment provides an accelerated testing method to evaluate the corrosive effects of sulfur dioxide-polluted atmospheres on contact points and connectors, particularly suitable for comparative testing.

25.02

How to Select a Low-Temperature Test Chamber

Choosing a high-quality low-temperature test chamber can provide better assurance and save on maintenance costs in the long run. With so many manufacturers of low-temperature test chambers available, how should you correctly select the right model?

25.06

Testing the performance and reliability of products under extreme temperature changes: Cold and Hot Shock Test Chamber

A cold and hot shock test chamber is an environmental test equipment used to evaluate the performance and reliability of products under extreme temperature changes.

25.04

The Importance of Sealing for High and Low Temperature Alternating Test Chambers

Previously, we discussed several factors that affect the test results of high and low temperature alternating test chambers. One critical factor is the sealing performance of the equipment, as poor sealing can lead to the following issues

25.04

What to Do When the Circulating Water Pressure in a Thermal Shock Test Chamber is Insufficient?

If you find that the circulating water pressure in your thermal shock test chamber is insufficient, how should you resolve it? To address the issue at its root and prevent recurrence, we need to promptly identify and troubleshoot the problem based on the actual situation.