Product Overview

The HM9080 is a gas-chromatographic analyzer for dissolved gases in insulating oil manufactured by Guodian Huamei specifically for the power industry; it is a specialized analytical instrument used to perform "health checks" on oil-filled electrical equipment such as transformers and reactors.
Features & Advantages
★ The instrument can be equipped with an advanced electronic flow controller (EFC) and electronic pressure controller (EPC) to enable digital control, significantly improving the reproducibility of qualitative and quantitative results;
★ The instrument is designed with a timed automatic startup program, allowing for easy online analysis of gas samples (requires an online autosampler);
★ The fully microprocessor-controlled keyboard-based operating system is simple and convenient to use; it features automatic detector recognition technology, as well as fault diagnosis and power-off data protection functions, and can automatically save parameter settings;
★ The chromatograph is equipped with a built-in low-noise, high-resolution 24-bit AD circuit and features baseline storage and baseline subtraction functions.
★ Chromatographic signal acquisition and data processing are compatible with operating systems such as Windows XP, Windows 2000, and Windows 7. Sampling data is imported via A/A (American Association for Analytical Chemistry) standard CDF files, enabling integration with chromatography workstations from Agilent, Waters, and other manufacturers.
★ The chromatography system, featuring fully proprietary intellectual property, includes a standard MODBUS/TCP interface, enabling seamless integration with DCS systems.
★ The instrument is compatible with autosamplers from multiple domestic and international manufacturers, such as Shimadzu's AOC-20i and the HT series of high-performance gas-liquid autosamplers from Italy's HTA.
Products Parameters
- Network Control System Internal CAN architecture; utilizes an interface board design that can be easily converted to Ethernet output
- Signal Bit Depth 24-bit
- Communication Interface Ethernet output (Connected via Category 6 Ethernet cable)
- Circuit Design ARM embedded design, facilitating wireless control, remote control, and mobile app control
- Temperature Control System Six independent temperature control channels
- Temperature Control Range Ambient temperature to -450°C; with liquid nitrogen cooling: -80°C to 450°C
- Column Oven Temperature Control Accuracy ±0.02°C
- Programmed Temperature Ramp 36 steps, 0.1°C per step
- Display Module Large LCD display
- Display Accuracy 0.01°C
- Column Oven Ramp Rate 0–80°C/min (adjustable in 0.1°C/min increments), up to 120°C/min
- Programmed Temperature Ramp Repeatability ≤1%
- TCD Detector Sensitivity: S-value ≥ 10,000 mV·ml/mg (benzene), up to 12,000 mV·ml/mg (benzene)
- Baseline Noise: ≤ 8 μV
- Baseline Drift: ≤ 20 μV/30 min
- FID Detector Detection Limit: ≤ 3 × 10⁻¹² g/s (hexadecane)
- Baseline noise ≤ 2×10⁻¹³ A
- Baseline drift ≤ 5×10⁻¹³ A
- ECD detector detection limit ≤ 3×10⁻¹⁴ g/s (R-666)
- Baseline noise ≤ 1×10⁻¹³ A
- Baseline drift ≤ 5×10⁻¹³ A
- FPD detector detection limit ≤ 2 × 10^(−11) g/s (sulfur in methyl parathion)
- Baseline noise ≤ 2 × 10^(−13) A
- Baseline drift ≤ 4 × 10^(−13) A
- Expansion Up to 6 external events can be added
- Automation Can be enhanced with: automatic ignition, automatic sampler connection, and four-channel flow/pressure display; remote control can be implemented using an optional remote control workstation

product details

Figure 1 Schematic diagram of the capillary injection port (split/splitless) (including diaphragm cleaning)
- 1 Guide (capillary) 2 Cap (capillary) 3 Injection pad 4 Gasket
- 5 Hex nut 6 O-ring 7 Vaporization tube (capillary) 8 Sleeve
- 9 Conduit 10 Platinum resistance 11 Heating wire 12 Gasket 13 Connector
Note: 1. The instrument can be equipped with multiple injection ports, allowing for the simultaneous installation of multiple columns;
2. The packed column port can directly accommodate packed columns with an outer diameter of 5 mm; by installing different liners, it can also accommodate packed columns with outer diameters of 3 mm or 4 mm, and large-bore capillary columns can be installed if necessary;
3. The capillary injection port (split/splitless) is used to perform split or splitless injections with capillary columns.
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