Product introduction:
The process design of GC-9890 transformer oil chromatography analyzer is fully in accordance with the standards of China GB / T7252-2001 Guidelines for Analysis and Judgment of Dissolved Gas in Transformer Oil, GB / T17623-2017 Gas Chromatography of Gas Content in Insulating Oil and the Ministry of Power DL / T722-2000 Guidelines for Analysis and Judgment of Dissolved Gas in Transformer Oil. The machine is equipped with high sensitivity of thermal conductivity detector and hydrogen flame ionization detector, and a nickel catalyst converter, can realize the transformer oil dissolved 7 kinds (or 9) of gas components: hydrogen, (oxygen, nitrogen), carbon monoxide, carbon dioxide, methane, ethylene, ethane, acetylene. Its performance meets the requirements of the gas chromatograph in the above standards.
Standard:
GB / T7252-2001 Guidelines for Analysis and Judgment of Dissolved Gas in Transformer Oil, GB / T17632-1998 Gas Chromatographic Measurement of Gas Content in Insulation Oil, DL / T722-2000 Guidelines for Analysis and Judgment of Dissolved Gas in Transformer Oil.
GC-9890 transformer oil chromatography analyzer is equipped with TCD detector and FID detector, where H2, O2 and N2 are detected by TCD; CO, CO2, CH4, C2H4, C2H6 and C2H2 are detected by FID
Chromatogram:
qualification
1. Comprehensive parameters
physical dimension: 565×505×500[mm ];(length×high ×wide).
Box size:730×650×610[mm ];(length×high×wide).
Chromatography columns: two dedicated chromatographic analysis columns
instruments weight :65Kg
- Temperature control column box temperature system:
Add 6ºC ~350ºC at room temperature; (in 1ºC increment)
(Set the parameter limit up to 399ºC valid, allowing users to use but not guarantee technical indicators)
Temperature fluctuation: not more than ± 0.1ºC; (ambient temperature 10ºC or 10%).
Temperature gradient: ± 1% (temperature range from 100ºC to 350ºC).
Program heating program order: order 7.
Heating rate: 0~40ºC / min (in 0.1ºC increment).
Cooling rate: Column box temperature drops from 200ºC to 100ºC for no more than 3min.
Thermal conductivity detector temperature control
Add 20ºC to 350ºC (index parameters).
(Set the parameter limit up to 399ºC valid, allowing users to use but not guarantee technical indicators).
Temperature control accuracy: not more than ± 0.1ºC.
Temperature of the remaining heating zone:
Add 20ºC to 350ºC (index parameters).
(Set the parameter limit up to 399ºC valid, allowing users to use but not guarantee technical indicators).
Temperature control accuracy: not more than ± 0.2ºC.
3, the FID detector
detectability :≤1×10-11g/s[n-C16].
noise:≤3×10-14A.
be driven by the current:≤5×10-13A/30min.
Dynamic linear range:≥105.
4, the TCD detector
sensitivity:S≥2500mv.ml/mg(N-hexadecane / isoooctane)
Baseline noise:≤20μv
baseline drift :≤50μv/30min
linear:≥104
Gas carrier velocity stability:≤1%
5. Application environment
ambient temperature :(5~35)ºC.
relative humidity: ≤ 85%. Power Supply: 220V±10%. Power supply frequency: 50±0.5Hz. Maximum power consumption: 2500W.
minimal detectable concentration(V/V;ppm) ul/l
| gas component |
minimal detectable concentration |
| H2 |
≤2 |
| C2H2 |
≤0.1 |
| CO |
≤5 |
| CO2 |
≤10 |
The GC-9890SD transformer oil chromatography analyzer uses a fully functional dedicated workstation
Power system dedicated chromatography workstation is based on the latest generation of windows system development of chromatography workstation, is the professional design has a powerful practical data processing system, the fault judgment meet the latest national standards, data acquisition using 24 high precision USB interface data acquisition card, input range up to 2v~ + 2v, resolution + 1 μ V. The main performance features are as follows:
1.The interference peak start function can automatically start the workstation and the chromatograph according to the injection interference.
2. Equipment management function: brief introduction and intuitively set the user's equipment management card, the analysis results are saved according to different equipment classification, so that the data management scene is clear.
3.Flexible printing function: provide results report in fixed format and custom template format.
4.Automatic fault diagnosis: automatic overweight prompt at the end of analysis, provide three ratio diagnosis in line with national standards, TD diagram, component concentration diagram, David triangle and other fault diagnosis methods.
5.Easy characterization: the peak identification table can be edited automatically or manually. The correction factor is calculated automatically, which can correct the averaging over multiple times.
6.Data diagram: display the concentration trend diagram of each component in the view of the historical data of a device.
7.Powerful spectrum processing function can realize the baseline alignment of spectrum and spectrum grafting.
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