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

25.09

Operating Principle and Accelerated-Corrosion Applications of Salt-Spray Test Chambers

Salt-spray cabinets artificially intensify corrosive agents so that months or even years of marine or industrial atmospheric attack are reproduced within a few hours or days. This paper systematically describes the working mechanism of the equipment, the control logic of its critical parameters, and the quantitative correspondence between test results and natural exposure. The aim is to provide industry with the technical basis for tailoring test programmes to specific products.

25.06

The high-pressure accelerated aging test chamber PCT and HAST test chamber have significant differences in various aspects

The high-pressure accelerated aging test chamber PCT and HAST test chamber have significant differences in various aspects. Here is a detailed comparison of these two types of test chambers

25.03

A 360-Degree Comprehensive Guide to Salt Spray Test Chambers

Salt spray test chambers play a vital role in many industries. However, for those who have just purchased this equipment, it may seem unfamiliar, and they may not know how to use it effectively.

25.06

How to test satellite components using a thermal vacuum chamber?

In order to verify the ability of satellite components to withstand vacuum thermal environments, a thermal vacuum chamber is used for testing. The purpose is to validate the rationality of the design and identify defects in the components, materials, and manufacturing processes.

25.05

How to Address Humidity Issues in High and Low Temperature Alternating Humidity Test Chambers?

As a device designed to simulate temperature and humidity variations for quality and adaptability testing of products or materials, the high and low temperature alternating humidity test chamber can also be used for material stress screening and evaluating various resistances, such as heat resistance, moisture resistance, and cold resistance.