The instrument fully meets the requirements of the national standards GB/T7252-2001 and DL/T722-2000 "Guidelines for the analysis and determination of dissolved gases in transformer oils". The AC900BD(II) instrument analyzes dissolved gases in mineral insulating oils (including H2, CO,
The contents of CO2, CH4, C2H4, C2H6, C2H2, and other seven components are used to monitor the operation status of large-scale power transformers, transformers, switches and other substation equipment, and provide timely information related to equipment maintenance and overhaul.
The instrument has the advantages of simple maintenance, convenient operation and fast analysis speed. One sample can analyze the content of seven components, and has the characteristics of good stability, high detection sensitivity, and high precision quantitative analysis. The instrument is reasonably priced and has a high price/performance ratio. Therefore, the market has been praised by users of the power industry for nearly a decade.
1. The high-sensitivity detector uses the TC-1H high-sensitivity thermal conductivity cell and dual FID detectors to greatly increase the sensitivity of analyzing hydrocarbon gases such as H2 and C2H2.
2. Protection and self-diagnosis function When the temperature of the temperature-controlled platinum resistance short furnace (or open circuit) exceeds the set value, the microcomputer system will disconnect the heating current, protect the instrument, and display the fault location and fault type. The time programming control can start or exit the temperature control and thermal conductivity constant current source at regular time. The instrument can automatically start and shut down at regular time.
3, the use of simple operation using AC900BD (II) requires no special training, even if it is a beginner to see, but also in a very short period of skilled operation, use the instrument.
4. The chromatographic workstations with excellent performance can be equipped with (optional) HL-3000 special chromatographic workstations for analysis of insulating oils, and automatically print out the analysis results with seven component spectra or standardized analysis reports.
5, diversification of analytical methods can provide a variety of pneumatic processes for the user to choose. Two-column double-column flow; one-column dual-column dual-FID flow; single-injection single column full-analysis flow.
6. Fully computerized operation using touch keyboard to realize the functions of temperature control, detector control, flow rate display, over-temperature protection, etc. of all heating components. The whole microcomputer operation is very simple and convenient. 7. The digital display of flow rate is applied on the instrument. The electronic mass flowmeter is the first in China to accurately display the carrier gas flow, improve the control accuracy of the carrier gas, and ensure the correctness and good reproducibility of the analysis results.
l Precise temperature control, high-efficiency oven advanced computer control circuit, reasonable volumetric box, automatic rear door opening and other reasonable design of the oven to ensure that the oven temperature control is better than ± 0.1 °C, and the advanced program temperature-raising function is realized. Easy to install a variety of packed columns and capillary columns.
l Anti-jamming protection In the event of sudden power failure or instantaneous interference, the microcomputer system can automatically save parameters and automatically resume normal operation after the interference. The instrument can be operated safely without being inspected.
Technical index 1, the minimum detection concentration:
H2≤2μl/L, CO, CO2≤3μl/L, C2H2≤0.1μl/L
Baseline noise and baseline drift:
TCD baseline noise ≤ 0.01mv, baseline drift ≤ 0.06mv/30min;
FID baseline noise ≤ 1 × 10-13A, baseline drift ≤ 6 × 10-13A/30min
3, temperature control and oven temperature stability:
Column oven: 8°C to 400°C above room temperature (usually 50°C)
TCD: 20°C to 300°C above room temperature;
FID: 100°C to 400°C;
Column temperature stability: ≤ 0.5%.
4. Repeatability of component retention time: 6 consecutive injections, relative standard deviation of component retention time: RSD ≤ 2%.
5. Quantitative reproducibility of components: 6 consecutive injections. Relative standard deviation of component peak areas: RSD ≤ 3%.
The contents of CO2, CH4, C2H4, C2H6, C2H2, and other seven components are used to monitor the operation status of large-scale power transformers, transformers, switches and other substation equipment, and provide timely information related to equipment maintenance and overhaul.
The instrument has the advantages of simple maintenance, convenient operation and fast analysis speed. One sample can analyze the content of seven components, and has the characteristics of good stability, high detection sensitivity, and high precision quantitative analysis. The instrument is reasonably priced and has a high price/performance ratio. Therefore, the market has been praised by users of the power industry for nearly a decade.
1. The high-sensitivity detector uses the TC-1H high-sensitivity thermal conductivity cell and dual FID detectors to greatly increase the sensitivity of analyzing hydrocarbon gases such as H2 and C2H2.
2. Protection and self-diagnosis function When the temperature of the temperature-controlled platinum resistance short furnace (or open circuit) exceeds the set value, the microcomputer system will disconnect the heating current, protect the instrument, and display the fault location and fault type. The time programming control can start or exit the temperature control and thermal conductivity constant current source at regular time. The instrument can automatically start and shut down at regular time.
3, the use of simple operation using AC900BD (II) requires no special training, even if it is a beginner to see, but also in a very short period of skilled operation, use the instrument.
4. The chromatographic workstations with excellent performance can be equipped with (optional) HL-3000 special chromatographic workstations for analysis of insulating oils, and automatically print out the analysis results with seven component spectra or standardized analysis reports.
5, diversification of analytical methods can provide a variety of pneumatic processes for the user to choose. Two-column double-column flow; one-column dual-column dual-FID flow; single-injection single column full-analysis flow.
6. Fully computerized operation using touch keyboard to realize the functions of temperature control, detector control, flow rate display, over-temperature protection, etc. of all heating components. The whole microcomputer operation is very simple and convenient. 7. The digital display of flow rate is applied on the instrument. The electronic mass flowmeter is the first in China to accurately display the carrier gas flow, improve the control accuracy of the carrier gas, and ensure the correctness and good reproducibility of the analysis results.
l Precise temperature control, high-efficiency oven advanced computer control circuit, reasonable volumetric box, automatic rear door opening and other reasonable design of the oven to ensure that the oven temperature control is better than ± 0.1 °C, and the advanced program temperature-raising function is realized. Easy to install a variety of packed columns and capillary columns.
l Anti-jamming protection In the event of sudden power failure or instantaneous interference, the microcomputer system can automatically save parameters and automatically resume normal operation after the interference. The instrument can be operated safely without being inspected.
Technical index 1, the minimum detection concentration:
H2≤2μl/L, CO, CO2≤3μl/L, C2H2≤0.1μl/L
Baseline noise and baseline drift:
TCD baseline noise ≤ 0.01mv, baseline drift ≤ 0.06mv/30min;
FID baseline noise ≤ 1 × 10-13A, baseline drift ≤ 6 × 10-13A/30min
3, temperature control and oven temperature stability:
Column oven: 8°C to 400°C above room temperature (usually 50°C)
TCD: 20°C to 300°C above room temperature;
FID: 100°C to 400°C;
Column temperature stability: ≤ 0.5%.
4. Repeatability of component retention time: 6 consecutive injections, relative standard deviation of component retention time: RSD ≤ 2%.
5. Quantitative reproducibility of components: 6 consecutive injections. Relative standard deviation of component peak areas: RSD ≤ 3%.
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