The high and low temperature alternating humidity and heat test chamber is designed to simulate a wide range of environmental conditions, making it ideal for evaluating the performance of electronic components, finished products, semi-finished items, semiconductors, rubber, adhesives, and metal materials. It complies with international standards such as GB/T 2423.1-2008, GB/T 2423.2-2008, GJB 150.3-1986, GJB 150.4-1986, GB/T 2423.4-2006, and GJB 150.9-1986, ensuring reliability and stability under harsh conditions.
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**I. Overview** 1. **Equipment Requirements**:
2. **Purpose of Use**:
This chamber is used to simulate various temperature and humidity environments, allowing for comprehensive testing of product durability and performance. It supports a wide range of applications in electronics, materials science, and industrial testing.
3. **Technical Requirements**:
All technical specifications must be met by the bidder. Any false information will result in full responsibility and potential loss. Bidders must answer each requirement individually and ensure consistency with the technical specifications; otherwise, the bid will be considered invalid.
**II. Supply Division and Separate Quotation**
2.1 The scope of supply must include, but is not limited to, the following:
**2.2 Equipment Power Supply and Environmental Conditions**
- **Power Supply**: Three-phase four-wire + protective earth line, AC 380±10%, 50Hz.
- **Working Environment**: Temperature 5–40°C, maximum relative humidity 85%, pressure 86kPa–106kPa.
- **Tap Water**: Flow rate ≥ 200kg/h, pressure 0.1–0.25MPa.
**3. Equipment Parameters and Requirements**
- **Temperature Range**: -40°C to 85°C, fluctuation ≤ ±0.5°C, uniformity ≤ 2°C.
- **Humidity Range**: 20%–98% RH, fluctuation ≤ ±2% RH.
- **Resolution**: Temperature 0.01°C, Humidity 0.1% RH, Time 1 minute.
- **Average Temperature Rise**: ≥ 2°C/min.
- **Average Cooling Rate**: ≥ 1°C/min.
**3.1 Structure and Material**
The system is split into three parts: the chamber, refrigeration/dehumidification unit, and control cabinet. The chamber is made of insulated panels, while the refrigeration unit is installed externally for easier maintenance.
- **Inner Box Size**: 20m³ standard volume.
- **Outer Box Size**: 6400mm × 4000mm (as per design).
- **Door Size**: 1800mm × 1800mm (double doors).
- **Observation Window**: Tempered glass with heating element, 500mm × 600mm.
- **Insulation**: 150mm high-density rigid foam.
- **Lighting**: Explosion-proof LED lamps, illumination ≥ 200 lux.
- **Noise Level**: Below 70dB.
**3.2 System Configuration**
- **Refrigeration System**: Germany BITZER compressors, R404A and R23 refrigerants.
- **Damp Heat System**: Electric humidifier, steam pipe with drain port.
- **Air Circulation**: High-temperature resistant motor, forced air circulation.
- **Control System**: High-end brand controller with PID regulation, program editing, and real-time monitoring.
**3.3 Measuring Devices**
- **Controller**: Supports PT100 or mV input, displays temperature, humidity, and program status.
- **Sensors**: PT100 type thermal resistance.
- **Safety Features**: Overload, overpressure, overtemperature protection, and emergency stop button.
**4. Spare Parts**
Bidders must provide free spare parts and a list for the next year, including prices and quantities.
**5. Installation, Commissioning, Training, and Documentation**
- **Installation**: Bidders send engineers to install and commission the equipment within 15 days.
- **Training**: Free training on operation, maintenance, and safety.
- **Documentation**: Includes manuals, schematics, certificates, and test reports.
**6. Acceptance**
Testing is conducted at the manufacturer's site, following GB/T 5170.2-2008 and GB/T 5170.5-2008 standards.
**7. Quality Assurance and After-Sales Service**
- **Warranty**: 24 months from final acceptance.
- **Support**: 4-hour response time, 24-hour technician dispatch.
- **Service Beyond Warranty**: Charged only for parts and labor.
**8. Design Drawings**
Bidders must submit layout plans and detailed designs within 10 days of winning the bid.
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Editor: (Hardware Business Network Information Center)
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**I. Overview** 1. **Equipment Requirements**:
| Numbering | Device Name | Quantity | Remarks |
| 1 | High and Low Temperature Alternating Humidity Test Chamber | 1 set | Nominal volume: 20 cubic meters |
| Serial Number | Device or Part Name | Description (Brand & Model) | Quantity | Unit Price (RMB) | Total (RMB) |
| 1 | High and Low Temperature Alternating Humidity Test Chamber | 1 | |||
| 2 | Screen Test Special Turnover Car | Stainless steel-like material for screens up to 65 inches | 2 | ||
| 3 | Detachable Single-Layer Shelf | 1 | |||
| 4 | USB Function | USB flash drive, PC software CD | 1 | ||
| 5 | Pure Water Machine (Q≥1T/h) | Reverse osmosis pure water device | 1 | ||
| 6 | Cooling Tower | Kang Ming, Mali | 1 | ||
| 7 | Total Price | Including 17% tax, packaging, transportation, installation, commissioning, and after-sales service |
Editor: (Hardware Business Network Information Center)
Http://news.chinawj.com.cn
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