Analysis of Dissolved Gas in Transformer Oil Using Packed Column Gas Chromatograph Gc-7890SD

• Customization: Available
• After-sales Service: Life Service
• Warranty: 1 Year
• Model NO.: GC7890SD
• Ray Type: Gamma Ray Spectrometer
• Gaspath System: Single
• Detector: FID
• Energy Resolution: ≤7%
• Certification: CE, ISO, IEC, GMP
• Spectrometer Detector: SDD
• Stationary Phase: Solid Adsorbent
• Mobile Phase: Gas
• Chromatography Type: Gas Chromatography
• Chromatographic Column Type: Capilary Column
• Chromatographic Column Length: 10~30cm
• Chromatographic Column Diameter: 0.2~0.5mm
• Transport Package: Box Cargo
• Specification: 606mm *450mm*450mm
• Trademark: jinpu
• Origin: Shandong Zaozhuang
• HS Code: 9027201100
• Production Capacity: 600000/Tower
• Package Size: 730.00cm * 730.00cm * 670.00cm
• Package Gross Weight: 70.000kg

Product Description

One, Main performance characteristics:
1. The large screen displays both Chinese and English, with simple and clear screen switching, and a stylish and beautiful appearance.
2. A comprehensive intelligent multidimensional chromatography system, ARM9-32-bit chip and foreign original software, wide heating rate, fast cooling system, and high stability temperature control technology.
3. The comprehensive self diagnosis function can conveniently check the fault location and type.
4. Complete temperature overheating protection and platinum wire resistance open circuit and short circuit alarm function, ensuring that the temperature does not lose control.
5. Optional built-in AD conversion circuit for direct output of digital signals.
6. It can achieve reverse control function, and all parameter settings and analysis control can be completed on a PC.
7. Under conditions of dry ice or liquid nitrogen, negative temperature operation can be achieved, supporting a wide range of temperature control from -80 ºC to 450 ºC.
8.Within 180 ºC, the column box control accuracy can reach ± 0.01 ºC.
9. Two packed columns and one capillary column can be installed simultaneously, or two pairs of capillary columns can be installed simultaneously,
10. It can achieve dual thermal conductivity, dual FID, or simultaneous operation of thermal conductivity and hydrogen flame.
11. Three detectors and methane conversion furnaces can be installed simultaneously.
12. Optional functions such as manual injection, automatic start of injection device, and automatic ignition.
13. The instrument has an automatic power outage protection function for gas interruption.
14. Six way temperature control, nine step programmed heating, independent temperature control for capillary and packed column vaporization chamber, intelligent dual rear door opening.
15. The instrument adopts a 5.7-inch color screen display, which can simultaneously display two spectrograms; Equipped with automatic flow display function.
16. External equipment such as headspace sampler, thermal analyzer, liquid automatic sampler, gas automatic sampler valve, etc. can be used in conjunction.

1. Computer reverse control function, which can operate all internal functions of the instrument through the computer (implemented through USB interface).

TOw, Main technical indicators
1. Column box temperature control range: Room temperature 5 ºC -450 ºC (set in increments of 0.1 ºC).
2. Temperature accuracy: ± 0.1 ºC.
3. Temperature gradient: ± 1 ºC (programmed heating from 100 ºC to 360 ºC).
4. Heating rate: 0.1 ºC -40 ºC/min (set in increments of 0.1 ºC).
5. Temperature control range of injection port and detector: room temperature+10 ºC -400 ºC.Voltage 220V ± 10%, maximum power 2200W.



Three,Technical specifications of the detector

detector	sensitivity	noise	drift	linear	characteristic
FID	Mf≤3×10 ^-1^2 g/s(benzene)	≤ 3×10^-14A	≤ 5×10^-13A/30min	≥10^7	Platinum ignition wire, corundum ceramic nozzle
TCD	S≥3000mV.ml/mg	≤ 0.02mV	≤ 0.15mV/h	≥10^5	Imported rhenium tungsten wire, constant current power supply
FPD	Mp≤2×10^-11g/sec(1605) Ms≤5×10^-11g/sec(thiophene)	≤ 0.02mV	≤ 0.15mV/h		Single flame design, suitable for residual analysis of sulfur and phosphorus
NPD	Mf≤5×10^-12g/s( azobenzene) Mf≤5×10^-12g/s(Malathion )	≤ 0.02mV	≤ 0.15mV/h		Imported rubidium beads, suitable for residual analysis of phosphorus
ECD	Mf≤1×10 ^-1^3g/ml(r-666)	≤ 0.02mV	≤ 0.15mV/h	≥10^7	Ni63 Radiation source; Applicable for residual analysis of electronegative substances