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Shandong Jinpu Portable Gas Chromatograph GC-8890SD for Transformer Oil Analysis

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Gas chromatograph GC-8890SD for the analysis of gases dissolved in transformer oil

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Gas chromatograph GC-8890SD for the analysis of gases dissolved in transformer oil

General The GC-8890SD is a high-performance network-controlled chromatograph with full reverse control (reverse control) and automatic control of gas pressure and flow in all gas lines. Thanks to automatic switching of the ten-port...

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Description

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General information

The GC-8890SD is a high-performance chromatograph with network control, full reverse control (reverse control) and automatic control of gas pressure and flow in all gas lines. Thanks to the automatic switching of the ten-port valve and backflushing, the device allows you to perform a complete determination of 9 gas components dissolved in transformer oil in one sample injection: hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane, acetylene.

Main functional features

1. Built-in 10/100 Mbit/s Ethernet communication technology with automatic negotiation, which allows you to connect devices into a local network and ensures data transfer over a remote distance.

2. Reverse control technology (reverse control): all parameters of the chromatograph can be set remotely via a computer, and chromatograms can also be processed.

3. Digital control of all gas parameters; Available operating modes: constant flow, constant pressure, flow division mode.

4. Setting all parameters and controlling the device is carried out through a convenient touch screen or from a computer.

5. Highly sensitive detectors and methane converter provide sensitivity that fully meets the requirements of the Ministry of Energy of the People's Republic of China for determining the gas content in transformer oil.

6. The use of new sorbents for columns and a two-column temperature scheme can reduce the release time of acetylene, increase sensitivity and reduce the duration of analysis.

7. Automatic ignition and automatic flame out detection function.

Features of a specialized workstation for the energy industry

1. The dedicated workstation is equipped with a 24-bit high-resolution USB data acquisition card. Input signal range: from –2 to +2 v, resolution – 1μV.

2. Injection peak trigger function: automatically turns on the workstation and chromatograph based on the sample injection peak signal.

3. Data management: saving analysis results by equipment category for ease of search and management.

4. Flexible report printing: support for both fixed and user-configurable templates.

5. Automatic fault diagnosis: functions for exceeding threshold values, three-component diagnostics (triad), TD diagram, component concentration graph, David's triangle and other methods.

6. Simplified identification: editing the peak identification table, automatic calculation of calibration coefficients and averaging of multiple calibration results.

7. Data visualization: displaying the dynamics of changes in the concentrations of each component based on historical data.

8. Advanced capabilities for processing chromatograms: baseline alignment and splicing (overlay) of chromatograms.

Specifications

1.General parameters

Overall dimensions: 565 × 505 × 500 mm (length × height × width).

Packing box dimensions: 730 × 650 × 610 mm (length × height × width).

Device weight: 65 Kg.

2.Temperature control

Number of temperature zones: 6.

Column thermostat temperature control range: from room temperature +5 °C to 400 °C (step 0.1 °C); accuracy: no more than ±0.1 °C.

Temperature programming: number of steps - 20.

Heating rate: 0 to 40 °C/min (0.1 °C increments); from 0 to 80 °C/min (step 0.1 °C) - optional.

Cooling speed: time to reduce the thermostat temperature from 200 °C to 100 °C - no more than 3 min.

3. Control of gas lines: mechanical valves.

4. Method of starting sample injection: manual/automatic.

5. Communication interface: Ethernet IEEE 802.3.

6. TCD Detector Temperature Control:

Range: from room temperature +20 °C to 399 °C (certificate values).

Temperature maintenance accuracy: no more than ±0.1 °C.

7. Detector characteristics

FID detector:

Detection limit: ≤1×10-12g/s[n-C16]

Noise: ≤ 3×10⁻¹⁴ A.

Drift: ≤5×10-13A/30min.

Linear dynamic range: ≥ 10⁷.

TCD detector:

Sensitivity: S≥3000mv.ml/mg (for n-hexadecane/isooctane; gain adjustment ×2, ×4, ×8, ×16 possible).

Zero line noise: ≤20uv.

Zero line drift: ≤50uv/30min

Linearity: ≥ 10⁵.

Ambient temperature: from 5 to 35 °C.

Relative humidity: no more than 85%.

Supply voltage: 220 V ±10%.

Power frequency: 50±0.5Hz

Maximum power consumption: 2500W

Minimum detectable concentrations (V/V, ppm, ul/l)

Gas component	Minimum detectable concentration	Equipment	Qty
H₂	≤ 2	Main unit GC-8890SD (with speakers)	1
C₂H₂ (hydrocarbons)	≤ 0.1	Specialized workstation	1
CO	≤ 1	Standard gas mixture	1
CO₂	≤ 5	Gas supply (high purity N₂, H₂, air)	1 each
O₂	≤ 10	Degasser (shaker)	1
N₂	≤ 20	Computer, printer	1 each