Product Details

New condition DGA gas chromatography transformer oil test machine,GC system

Product Application

1. Applicable boiling range: petroleum products or distillates of 55~550℃ boiling range distribution such as fuel, kerosene, diesel, lubricants, wax oil etc. On this chromatographic condition tested sample components

can all show the peaks. It adopts area normalization method to fix quantity. It complies to SH/T 0558-2002 and ASTM D2887standard.

2. Applicable boiling range: crude oil of initial boiling point~538℃ boiling range distribution. Get distribution

proportion of fuel, diesel, kerosene, heavy oil. Since the heavy components above 538℃ can not show peak,

it adopts incremental internal standard method and complies to ASTM D5307 standard.

3. Applicable boiling range: petroleum products or distillates of 55~680℃ boiling range distribution. On this chromatographic condition tested sample components can all show the peaks. It adopts area normalization

method to fix quantity.

Product Features

1. Adopts American Agilent 5890 gas chromatographic core tech; green backlight LCD screen; easy operation.

2. Temperature control upper limit max use temperature of 450℃for every instrument heating area.

3. Dual channel single column compensation; base line drift when program heat to operate FID test;

ensure base line straight and chromatography peak shape perfect.

4. Adopts imported heat-resistant large aperture metal capillary column to separate; mas analysis

use temperature of 450℃.

5. Can display and print C5-C44 n-alkanes calibration sample boiling point-time calibration curve.

6. Can provide oil sample boiling point-yield boiling range curve.

7. Can provide detailed boiling range report regarding 1% yield interval; also can provide it regarding 5℃, 10℃, 20℃, 30℃, 50℃, 100℃ boiling range.

8. Can be equipped with AS-2902 highly efficient auto liquid sample injector; auto injection analysis with unattended operation achieved; analysis efficiency improved and labor intensity reduced.

Technical Parameter

Temperature control index

Oven/ Sample injector/ detector: above room temperature 5℃~450℃; precision ±0.1℃

Column oven parameters

Temperature control range: above room temperature 5℃~450℃; precision ±0.1℃

Program heating stages: 3 stages

Program heating speed: 0.1℃~50℃, increment 0.1℃

Program heating keeping time: 0~655 min (increment 1 min)

Big oven volume; back pullout design; program quick cooking after heating. Cooling speed: only 7min from 350℃ down to 60℃.

Injection method

Capillary split/unsplit stream injection: flash distillation injection

Packed column head injection: flash distillation injection

Can be equipped with unattended operation auto injector.

Hydrogen flame ionization detector (FID)

Easy disassembly and installation; convenient for cleaning and displacing nozzle; easy operation; can input signal to logarithmic amplification to reduce interference; high sensitivity, good linearity and wide range.

Limit of detection (LOD): Mt ≤ 5×10-12g/s (n-Hexadecath)

Baseline noise: ≤ 6×10-12A/H

Linearity range: ≥ 105

Stability time: < 0.5h

Chromatographic working station

24 bits high precision digital-to-analogue conversion (DAC)

Dual channel synchronous or asynchronous work

USB port; can be connected to external power supply; with serial port

Input voltage range: -1V~1V

Integral sensitivity: 0.05uV•s

Min solution: 1uV

Dynamic range (DR): 107

Sample frequency: Max 60 times/sec; adjustable program variables

N-alkanes analysis spectrogram

C5-C44 n-alkanes calibration sample boiling point-time calibration curve

Diesel simulated distillation spectrogram

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