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For temperature and humidity conditioning

Temperature & Humidity Test Chamber

HY-751DG
This machine is a specialized device designed for temperature and humidity conditioning/equilibration of textiles before physical and mechanical performance testing.
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Product Overview
This Enviroment Test Chamber is a specialized device designed for temperature and humidity conditioning/equilibration of textiles before physical and mechanical performance testing. It also simulates harsh environments (high/low temperature, damp heat, or alternating temperature/humidity) encountered during transportation, storage, and use of materials/equipment—testing their high-temperature, low-temperature, and damp-heat resistance, as well as potential damage and service life reduction.
 
Application Scope
For temperature and humidity conditioning/equilibration of various textiles prior to physical and mechanical performance testing.
For testing the environmental resistance (and potential damage/life reduction) of electronic instruments, new materials, electrical products, vehicles, metals, electronics, and aerospace materials under harsh conditions (high/low temperature, damp heat, or alternating temperature/humidity) during transportation, storage, and use.
 
Related Standards
GB 6529 Standard for Conditioning and Testing of Textiles
ASTM D1776/D1776M-16 Practice for Conditioning and Testing Textiles
GB/T 2423.3-2008 (IEC 68-2-3)
GB/T 2423.1-2001 Test A: Low Temperature (Partial)
GB/T 2423.2-2001 Test B: High Temperature (Partial)
 
Instrument Features
1.Functional Module Design: Main circuit, refrigeration configuration, and water system are independently placed in separate areas (circuit area with dust-proof/heat-dissipation design), isolating water circuit, circuit, and refrigeration system for safer operation.
2.Outer Cabinet: Frame structure with assembled components; cold plate electrostatic powder coating (dark blue + gray) for neat, stable, and attractive appearance.
3.Inner Cabinet: SUS304 stainless steel (seamless welding); circuit/refrigeration cover plate adopts key switch design for easy maintenance.
4.Insulation Material: Rigid polyurethane foam (100mm thickness) for high-temperature insulation.
5.Air Circulation: Top-outlet and bottom-return air flow.
6.Observation Window: Transparent electric heating film hollow tempered glass (on the door); 3-layer vacuum large glass (anti-fog function).
7.Visible Range: W200mm × H260mm (including lamp shading range).
8.Door Design: Left single door (anti-condensation electric heating; double-sealed foam silicone rubber); external-mounted touch screen for easy operation.
 
Technical Parameters
1.Temperature Range 0℃/-20℃/-40℃/-60℃ to +150℃
2.Temperature Fluctuation ±0.5℃
3.Temperature Uniformity ≤±0.5℃ (controller vs center point average); ≤2℃ (max-min temperature mean)
4.Heating Rate ≥3℃/min (from -20℃ to +100℃, no load)
5.Cooling Rate ≥1℃/min (from +20℃ to -20℃, no load)
6.Humidity Range 20%RH to 98%RH; Fluctuation: ±2.5%RH
7.Noise ≤65dB (measured in soundproof room, A-weighting)
8.Refrigeration Technology Cold balance (PID-controlled refrigerant flow; reduces power/water consumption vs traditional hot balance)
 
Control System
1.Control Device: High-precision resistive touch screen (U760 temperature control module); 7-inch TFT true-color LCD (800×480 resolution).
Input/Output: 2-channel input (PT100, thermocouples); PID/SSR/SCR automatic forward/reverse output.
2.Program Capacity: 100 programs × 100 segments (cycle up to 999 times; programs can be linked).
3.Data Management: Paperless recording (stores 24h data for 300 days; exports as XLS); USB port (printing/data export); LAN port (monitors up to 16 devices).
4.Fault Prompt: 16 groups of fault alarms (Chinese/English prompts for causes and solutions).
 
Refrigeration System
1.Refrigeration Method: Mechanical compression (compressor, condenser, expansion valve, evaporator); air-cooled cooling medium.
2.Dehumidification: Cooling dehumidification (cools air below dew point to remove condensed water).
3.Process & Vibration Reduction: Oxygen-free copper tube welding; spring vibration reduction (compressor); optimized pipeline (avoids resonance).
Components: Imported insulation tube; fully enclosed low-noise compressor; non-fluorine environmental refrigerant (HFC-R404A).
 
Heating & Humidification System
1.Temperature Control: PID-adjusted fin-type nickel-chromium heating tube (dry bulb temperature).
2.Humidification: Shallow water pan (fast, high-precision); quantitative water supplement (reduces humidity impact); fully stainless steel humidification tube (anti-dry burning).
3.Water System: 10L rear water tank; RO water filter; automatic water supplement.
Air Supply & Temperature Measurement System
Air Supply: Centrifugal fan (top-outlet, bottom-return