Scope of Application

【Operating Instructions】

This instrument is designed to detect and quantify ethylene oxide residues.Instrument Features User-Friendly Interface: Features a large-screen LCD with Chinese character display technology, offering intuitive visualization and easy operation tailored for user convenience.

Ethylene Oxide Residue Tester

Scope of Application
This instrument is designed to detect and quantify ethylene oxide residues.

Instrument Features

1. User-Friendly Interface: Features a large-screen LCD with Chinese character display technology, offering intuitive visualization and easy operation tailored for user convenience.

2. Self-Diagnosis & Safety: Equipped with self-diagnosis and "0℃" protection. If any channel displays a constant "0℃", the system automatically cuts off heating to prevent damage to the heating element. It provides fault diagnosis and alarm prompts in Chinese.

3. Touch Keypad: A touch-sensitive keyboard allows users to easily set various operating parameters.

4. Data Protection: Power-off protection ensures that all set operating data is permanently saved even after a power failure.

5. Automated Control: Microcomputer-controlled FID detector with automatic ignition and a built-in stopwatch function.

6. Over-Temperature Protection: If the temperature exceeds the set limit, the instrument stops heating immediately and displays a fault report.

7. Intuitive Software: The large LCD screen and user-friendly software interface allow for easy setting of parameters such as temperature, programmed temperature rise (PTR), detector settings, and bridge current. It also allows direct control of functions like bridge current switching, heating, and time events.

8. Remote Connectivity: The instrument can connect to the internet/PC, enabling remote data acquisition and management, enhancing flexibility and laboratory efficiency.

9. Reliable Core: The main control circuit utilizes an advanced microprocessor and large-capacity memory for reliable data storage. The integrated design (measurement, control, and power supply on a single PCB) improves anti-interference capability and reliability.

10. Precise Control: Microprocessor-based temperature control circuits achieve a precision of 0.1℃ for each heating zone.

11. Smart Cooling: Intelligent dual rear-door technology ensures high temperature control precision in the column oven and rapid cooling.

12. 8-Step Programming: Eight-stage programmed temperature rise accommodates the analysis of complex samples with wide boiling point ranges.

13. Modular Design: Unitary structural design makes installation and maintenance convenient.

14. Large Capacity Oven: A large-volume column oven capable of installing four chromatographic columns simultaneously.

15. Flexible Configuration: Designed to accommodate three detectors simultaneously, each with independent circuitry and signal output.

16. Versatile Column System: Flexible packed and capillary column systems compatible with capillary columns of various diameters.

17. Gas Failure Protection: Features gas failure protection with Chinese prompts to prevent damage to the TCD tungsten filament and chromatographic columns.

Technical Specifications

1. Temperature Control Indicators

• Column Oven: Ambient +5℃ to 420℃, Precision ±0.1℃ (measured at 200℃).

• Injector: Ambient +5℃ to 420℃, Precision ±0.1℃ (measured at 200℃).

• Detector: Ambient +5℃ to 420℃, Precision ±0.1℃ (measured at 200℃).

• Multi-Zone Control: Up to 6 temperature control channels (suitable for additional needs like conversion furnaces).

2. Column Oven Parameters

• Control Precision: Ambient +5℃ to 420℃, Precision ±0.1℃.

• Dimensions: 280mm × 280mm × 250mm.

• Programmed Stages: 8 stages.

• Heating Rate: 1℃ to 50℃.

• Isothermal Hold Time: 0 to 300 min (1 min increment).

• Cooling: Automatic rear door opening design for rapid cooling.

• Fan: High-power, low-noise rotary fan ensures temperature uniformity.

3. Stable Dual-Gas Path System

• Flow Control: Dual stabilization design (pressure stabilization followed by flow stabilization).

• Valves: Graduated gas control valves offering high reproducibility and stability.

4. Multiple Injection Modes

• Packed column head injection.

• Packed column vaporization injection.

• Capillary split/splitless injection: Back-pressure valve control technology with linear splitting.

• Six-way valve gas injection.

High Sensitivity Detector Parameters (Ensuring Data Accuracy)

General Specifications

• External Dimensions: 560 × 460 × 465 mm

• Net Weight: 55 kg

• Power Supply: AC 220V ±10%, 50Hz, 2KW

Note: The GC-9860 Gas Chromatograph is the experimental instrument used for detecting ethylene oxide residues.