Products Video
HM9890 Gas Chromatograph Analyzer Display Video
Product Overview & Applications
The HM9890 Gas Chromatograph employs a triple-detector configuration with single injection, dual-column parallel operation, and single split flow. It surpasses both national and industry standards in detection sensitivity, peak resolution, and quantitative accuracy. Connected to a network-enabled dedicated chromatography workstation, it serves as the most efficient specialized gas chromatograph for manufacturers of oil-filled electrical equipment in the power industry-including transformer plants, instrument transformer factories, high-voltage porcelain manufacturers, and bushing plants-as well as end-users such as power generation plants and power supply bureaus. It offers superior performance, simplified operation, and highly sensitive detection.
Features & Advantages
★ Features a 10/100M adaptive Ethernet communication interface for long-distance data transmission;
★ Incorporates three independent connection processes internally, enabling supervisors and senior supervisors to monitor instrument operation and analyze results in real time;
★ The networked workstation supports simultaneous operation of multiple chromatographs (up to 253 units), enabling data processing and remote control. This streamlines documentation management while significantly reducing laboratory investment and operational costs;
★ Remote diagnostics and software updates are available (user permission required);
★ Features a 5.7-inch color LCD screen for versatile user operation;
★ Includes dual Chinese and English operating systems with seamless switching;
★ Employs multi-processor parallel operation with optional high-performance detectors (e.g., FID, TCD), supporting up to three detectors simultaneously;
★ Modular structural design ensures clear configuration;
★ Innovative microprocessor-based temperature control system with six fully independent temperature channels, supporting sixteen-step programmed temperature ramping; incorporates an automatic column oven rear door system for accelerated heating/cooling rates;
★ Instrument features a scheduled auto-start function.
★ Chromatograph incorporates a low-noise, high-resolution 24-bit AD circuit with baseline storage and baseline subtraction capabilities;
★ Instrument comes equipped with a mainstream domestic "Transformer Oil Gas Analysis Workstation" offering powerful functionality and intuitive operation.
Products Parameters
● Temperature control zones: 6 channels
● Temperature range: 8°C to 450°C above ambient temperature, increment: 1°C, accuracy: ±0.1°C
● Programmed temperature ramp stages: 16 stages
● Ramp rate: 0.1–39°C/min (Standard model); 0.1–80°C/min (High-speed model)
● Gas control: Mechanical valve control or electronic flow/pressure control (selectable)
●External Events: 4 channels; Auxiliary Control Outputs: 4 channels
●Injector Types: Packed column injection, capillary injection, six-port valve gas injection, automatic headspace injection (selectable)
●Number of Detectors: 3 (maximum)
●Injection Initiation: Manual or automatic (selectable)
● Communication Interface: Ethernet: IEEE802.3
1.3.2 Detector Technical Specifications
Hydrogen Flame Ionization Detector (FID)
● Detection Limit: Mt ≤ 3×10⁻¹² g/s (n-hexadecane);
● Noise: ≤ 5×10⁻¹⁴ A
● Drift: ≤ 1×10⁻¹³ A/30 min
● Linear range: ≥10⁶
● Maximum operating temperature: ≤450°C
Thermal Conductivity Detector (TCD)
● Sensitivity: S ≥ 3500 mV•ml/mg (n-hexadecane) (selectable amplification: 1×, 2×, 4×, 8×)
● Noise: ≤10 μV
● Baseline drift: ≤30 μV/30 min
product details
Injector：
The injector of the transformer oil chromatograph is mounted on the upper left front side of the column oven, with its structure shown in Figure 1.7. Its temperature is set and controlled by a microcomputer controller. The uppermost part of the injector is a heat dissipation cap, beneath which a silicone rubber injection pad is embedded. The carrier gas inlet of the injector connects to the outlet of the flow stabilizing valve in the gas control system.
Figure 1. Schematic Diagram of Transformer Oil Chromatograph Injector Structure
Note:
1. The transformer oil chromatograph is equipped with multiple injector installations, allowing simultaneous mounting of several packed columns;
2. The injector of the transformer oil chromatograph can directly mount packed columns with an outer diameter of Φ5mm. By installing different liner tubes, it can also accommodate packed columns with outer diameters of Φ3mm and Φ4mm;
3. The injector can be configured as a split injector or splitless injector by installing capillary split liner accessories or capillary splitless liner accessories. This allows the injector to accommodate stainless steel, glass, or flexible quartz glass capillary columns of various diameters.
Product Pictures
Hot Tags: transformer oil chromatography analyzer, China transformer oil chromatography analyzer manufacturers, factory
