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BS-CTH-225L

Programmable Temperature and Humidity Testing Machine Also known as High-Low Temperature Alternating Damp Heat Testing Machine, it belongs to large-scale climatic simulation environmental equipment. It is suitable for evaluating the temperature and humidity aging tests of electrotechnical and electronic products such as new energy, automotive, household appliances, semiconductors, electronics, aerospace, universities, and instrument components. It is used for adaptability tests under environmental conditions of high temperature, low temperature, damp heat, and alternating damp heat.

1. Equipment Overview

Serial Number Project Name Technical Specifications
1.1 Equipment Name Programmable Temperature and Humidity Testing Machine
1.2 Equipment Description The programmable temperature and humidity testing machine, also known as the high-low temperature alternating damp heat testing machine, belongs to large-scale climatic simulation environmental equipment. It is suitable for evaluating the temperature and humidity aging tests of electrotechnical and electronic products, including new energy, automotive, household appliances, semiconductors, electronics, aerospace, universities, and instrument components. It is used for adaptability tests under environmental conditions of high temperature, low temperature, damp heat, and alternating damp heat.
1.3 Equipment Model BS-225AD
1.4 Effective Volume 225L
1.5 Inner Box Dimensions 600×750×500 (W×H×D) (mm)
1.6 Outer Box Dimensions Front-rear structure: approximately 850×1480×1450 (W×H×D) (mm)
Left-right structure: approximately 1150×1580×950 (W×H×D) (mm)
(Subject to the final confirmed 3D drawing)
1.7 Temperature Range -40℃~150℃
1.8 Humidity Range 20~98%R.H

Temperature and Humidity Conversion Table

| 1.9 | Heating Rate | -40℃~150℃ ≥3℃/min (non-linear throughout, no-load acceptance) |
| 1.10 | Cooling Rate | 150℃~-40℃ ≥1℃/min (non-linear throughout, no-load acceptance) |
| 1.11 | Temperature & Humidity Display Accuracy | Temperature: 0.01℃
Humidity: 0.1%R.H |
| 1.12 | Temperature & Humidity Deviation | Temperature: ±2℃
Humidity: ≤+2-3%R.H when ≥75%RH; ≤±5%R.H when <75%RH |
| 1.13 | Temperature & Humidity Fluctuation | Temperature: ≤±0.5℃
Humidity: +2/-3%R.H |
| 1.14 | Temperature & Humidity Uniformity | Temperature: ≤2℃
Humidity: +2/-3%R.H |
| 1.15 | Cooling Method | Air cooling |
| 1.16 | Equipment Weight | 320KG |
| 1.17 | Equipment Power | 380V 6KW |
| 1.18 | Others | 1. The above performance indicators are measured under no-load, no test materials, and ambient temperature of 25±2℃.
2. 70dB (1m away from the box door, 1.5m height) |

2. Compliance with Testing Standards

Serial Number Testing Item Standard Description
2.1 General Standards GB/T 2423.2-2008 Test Method: High Temperature
GB/T 2423.1-2008 Test Method: Low Temperature
GJB150.4A－2009 Low Temperature Test Method
GJB150.3A-2009 High Temperature Test Method
GB/T 2423.4-2008/IEC6008-2-30:2005 Test Db: Alternating Damp Heat Method
GB/T 2424.6-2006 Environmental Testing for Electric and Electronic Products - Performance Verification of Temperature and Humidity Test Chambers
GB/T10586-2006 Technical Conditions for Damp Heat Test Chambers
GB/T 2424.5-2006 Environmental Testing for Electric and Electronic Products - Performance Verification of Temperature Test Chambers
GB/T 2423.4-2008/IEC6008-2-30:2005 Test Db: Alternating Damp Heat Method
2.2 Acceptance Execution Standards Manufacturing standards: GB/T10586-2006, GB/T10592-2008
Calibration standards: GB/T5170.2-2017, GB/T5170.5-2016
Technical standards: Accepted according to signed technical indicators

3. Equipment Structure

Serial Number Project Name Technical Specifications
3.1 Box Structure Integrated (left/right/front/rear) frame structure, welded with national standard channel steel. The equipment is sturdy and durable, with minimal operation vibration, low noise, and ensures overall reliability and safety performance.
3.2 Inner Box Material Made of 1.0mm thick SUS #304 stainless steel; fully welded for airtightness. Bottom-reinforced design with load-bearing capacity ≥300KG average load.
3.3 Outer Box Material 1.2MM cold-rolled steel plate with double-sided spraying, in blue-white color. (Customizable per customer requirements, with color swatches or codes provided)
3.4 Thermal Insulation Material 100MM-thick fire-resistant high-strength rigid polyurethane foam insulation, with thermal conductivity <0.0212kcal/m∙hr.
3.5 Box Door Structure Single-door design with double-layer silicone rubber seals (high/low temperature resistant, anti-aging) for airtightness. Door frame and edge equipped with anti-condensation electric heating to prevent frost/condensate.
3.6 Test Observation Window 1 vacuum multi-layer explosion-proof glass window with anti-fog/frost design: film-coated heating around the window to prevent water vapor condensation. Safety high-brightness energy-saving lamp above (manual on/off control).
3.7 Air Path Components Circulating fan & motor, aluminum extended shaft, high/low temperature-resistant aluminum multi-blade fan for forced convection vertical diffusion. Adjustable air outlet.
3.8 Sample Shelf Stainless steel construction with 2 sets of brackets, freely adjustable vertically (customizable per customer needs).
3.9 Test Hole 1×50mm diameter test hole reserved on left side, with 1 set of silicone plug + sealing cover included.
3.10 Three-Color Indicator Light Installed three-color light: green (operation), yellow (stop), red (fault).
3.11 Drainage Trough Peripheral drainage troughs for condensate discharge, preventing internal water accumulation.
3.12 Pressure Balance Hole Internal pressure balance hole to equalize pressure inside and outside the box.
3.13 Universal Wheels Bottom-mounted universal wheels for easy relocation and positioning.

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