GC-7890MD Portable GC Testing Equipment/Dissolved Gas chromatography Analyzer
Introduction
GC-7890MD gas chromatograph is a new generation of power system dedicated gas chromatography manufactured by Chongqing TOP Oil Purifier Co., Ltd. for the power industry. The instrument uses advanced computer control system and large-screen Chinese / English display, which is in strict accordance with three detector flow recommended by the national standard GB / T 17623-1998 "Dissolved gas component content in insulating oil by using gas chromatograph method", GB / T7252-2001 " Guide for interpretation of dissolved gases in oil-immersed transformer ". Advanced thermal conductivity amplification technology to increase 10 times of the detection capacity of hydrogen. High-sensitivity micro-current amplifier circuit made the ability of detecting hydrocarbon gases rise to limit. Excellent column system ensures good chromatographic peak shape and the best resolution. Stable gas control system ensures the accuracy and repeatability of the analysis. Instrument uses computer control, keyboard-type operation and LCD screen display, with advantages of high integration of electronic circuits, good reliability, simple operation, long-term operation and so on. The instrument is equipped with a thermal conductivity detector, dual hydrogen flame detector and nickel converter. Seven (or nine) kinds of gas components in oil sample can be achieved with automatic total analysis at a time; The oven is equipped with a rear door automatic cooling system. Each heating zone (the capillary injector incubator, detector incubator, auxiliary incubator, oven thermostat) is separated from each other by a heat insulating material, so that the heat conduction between the heating zones is minimized and the temperature of each heating zone can be independently controlled. The gas flow and pressure control system of instrument is installed inside the instrument gas-line box. The injection system installed at the top of the instrument requires vertical injection. Instrument signal output can be connected to the transformer oil chromatography data processing system, integrator, computer and other peripheral drawing equipment.
Comprehensive index | 1) Dimensions: 565 × 505 × 500mm]; (length × height × width) 2) Packing box dimensions: 730 × 650 × 610 [mm]; (length × height × width) 3) Column spacing size: 150mm 4) Column: two dedicated chromatography column 5) Instrument weight: 65Kg |
Temperature control index | Oven temperature control: 1) Room temperature plus 6 ºC ~ 399 ºC; (in increments of 1 ºC), (set effectively parameter up to 399 ºC, allowing using but not to guarantee the technical index) 2) Temperature fluctuation: no more than ± 0.1 ºC; (ambient temperature change 10 ºC or power supply voltage change 10%). 3) Temperature gradient: ± 1% (temperature range 100 ºC ~ 350 ºC). 4) Program heating step: 7 step 5) Heating rate: 0 ~ 40 ºC / min (set in increments of 0.1 ºC). 6) Cooling rate: not more than 3 min when oven cool from 200 ºC to 100 ºC 7) Time setting: 6000 (min) Thermal conductivity detector temperature control: Room temperature plus 20 ºC ~ 350 ºC (index parameters). (Set parameters: room temperature plus 6 ºC ~ 399 ºC effective, allowing using but not to guarantee the technical index ). Temperature control accuracy: not more than ± 0.1 ºC. The remaining heating zone temperature: Room temperature plus 20 ºC ~ 350 ºC (index parameters). (Set parameters: up to 399 ºC effective, allowing using but not to guarantee the technical index ). Temperature control accuracy: not more than ± 0.2 ºC. |
FID detector | Detection limit:≤8×10-12g/s(n-C16H34) Noise: ≤ 2 × 10-14A(0.02mv) Drift: ≤ 1.5 × 10-13A / 30min(0.15mv/30min) Dynamic linear range: ≥ 107 |
TCD detector | Sensitivity: ≤5000mv.ml/mg(n-C16H34) Noise: ≤2×10-14A (0.02mv) Drift: ≤1.5×10-13A/30min (0.15mv/30min) Dynamic linear range: ≥ 104 |
Application Environment | Ambient temperature: (5 ~ 35) ºC Relative humidity: no more than 85% Power Supply voltage: 220 ± 22V Power supply frequency: 50 ± 0.5Hz. Maximum power consumption: 2500W No Indoor corrosive gases. No strong mechanical vibration on table. No strong electromagnetic interference nearby. No dramatic indoor temperature change. No air convection |
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Company Introduction
Chongqing TOP Oil Purifier Co.,Ltd, established in 2 0 1 2 , is a professional manufacturer engaged in the research, development, production, sale and service of oil purifiers and various related testers.We are located in Chongqing China - a southwest electromechanical manufacturing center as well as national municipality, which is one of the most well-known oil purifier manufacturers in southwest China. Dedicated to strict quality control and thoughtful customer service, our experienced staff are always available to discuss your requirements and ensure full customer satisfaction. On basis of mature development and manufacture technology and highly qualified production management team, the products own high quality, easy operation, excellent performance and long service life. In addition, Our company has won C E,S G S certificates. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as Australia, Canada, USA, South Africa , Asia etc.. Our company holds the managerial idea that " Honest treatment,Sincere Communication,Reliable Quality and Service Commitment", and tries its best to do well at any aspect from each part, each point of procedure of manufacturing to final inspection, packing and shipment. We also welcome O E M and O D M orders. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.
TOP Oil Purifiers are widespread in the fields of electric power, petrifaction, mineral, shipbuilding, steel construction, bridge, automobile and railway, playing a great role in reducing energy consumption for clients as well as environmental pollution. We provides you with reliable oil purifiers such as transformer oil purifier, turbine oil purification machine, hydraulic oil purifier, lubricating oil filtration machine, fuel oil restoration, oil and water separator, oil regeneration equipment, waste oil recycling equipment etc.
TOP Testers works on the development, production, market, technical and after-sale service for petrochemical analyzers, transformer substation electrical testing equipment and circuit detecting equipment. Main products are water content testers, surface/interfacial tension testers, flash point testers, kinematic viscosity testers, oil acidity testers, insulation oil dielectric strength testers, transformer characteristics testers, relay protection testers, high voltage testing equipment etc.
Honest Team - TOP always honestly treat you and keep faith to make you satisfied with every cooperation with us.
Sincere Communication - TOP sincerely communicate with you to guarantee the provided products to be your ideal ones.
Reliable Quality -TOP own high quality and high performance for every TOP product is under strict quality control and testing.
Service Commitment - TOP bring you prompt, considerate and professional aftersale service and technical support, and explore technology future together.
TOP Oil Purifiers are widespread in the fields of electric power, petrifaction, mineral, shipbuilding, steel construction, bridge, automobile and railway, playing a great role in reducing energy consumption for clients as well as environmental pollution. We provides you with reliable oil purifiers such as transformer oil purifier, turbine oil purification machine, hydraulic oil purifier, lubricating oil filtration machine, fuel oil restoration, oil and water separator, oil regeneration equipment, waste oil recycling equipment etc.
TOP Testers works on the development, production, market, technical and after-sale service for petrochemical analyzers, transformer substation electrical testing equipment and circuit detecting equipment. Main products are water content testers, surface/interfacial tension testers, flash point testers, kinematic viscosity testers, oil acidity testers, insulation oil dielectric strength testers, transformer characteristics testers, relay protection testers, high voltage testing equipment etc.
Honest Team - TOP always honestly treat you and keep faith to make you satisfied with every cooperation with us.
Sincere Communication - TOP sincerely communicate with you to guarantee the provided products to be your ideal ones.
Reliable Quality -TOP own high quality and high performance for every TOP product is under strict quality control and testing.
Service Commitment - TOP bring you prompt, considerate and professional aftersale service and technical support, and explore technology future together.
Packing&Shipping
Payment terms
MOQ | 1 Set |
Trade Terms | EXW, FOB, CIF, CFR |
Payment Terms | T/T, L/C |
Port of Loading | Any Port of China |
Packing Method | Internaional Standard Wooden Case |
Transportation Method | By Sea, By Land, By Air, By Express |
Supply Capability | 100 Sets/Month |
After Sales Service
* The warranty period is 24 months from commissioning acceptance date on. After the warranty period is over we provide lifelong
maintenance and technical service.
* We guarantee the maintenance time no more than 3 working days and response time within 1 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.
maintenance and technical service.
* We guarantee the maintenance time no more than 3 working days and response time within 1 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.
What is the mini order quantity?
MOQ: generally 1 unit/piece/set
What payment methods are supported?
Payment method: By T/T, L/C, Alibaba Trade Assurance etc.
Payment terms: Generally, T/T 40% advanced, the balance paid by T/T when the machine is ready; or 100% irrevocable L/C at sight.
What are the available delivery methods?
Our port location: Chongqing, Shanghai or other main port of China
Delivering to: Worldwide
Delivering method: by sea, by air, by truck, by express, combined transportation
How long is the product date of delivery probably?
Delivery date differs with product type, order quantity, special requirement etc. Usually our big machine delivery date is around 10 ~ 20 days; test equipment or analyzer delivery date is around 5~10 days. Some products have stock, contact us anytime to get more information.
How long is the warranty period?
We warrants the plant supplied under agreed specification against defects in material and workmanship under normal use and service for a period of 2 years after start up of the system.
How is the technical services on the product?
Engineer available to service machinery overseas. If you have any technical question, you are welcome to contact us any time. We will response promptly and answer to your satisfaction. If required and necessary, we can send our engineer to your place to provide technical support.
MOQ: generally 1 unit/piece/set
What payment methods are supported?
Payment method: By T/T, L/C, Alibaba Trade Assurance etc.
Payment terms: Generally, T/T 40% advanced, the balance paid by T/T when the machine is ready; or 100% irrevocable L/C at sight.
What are the available delivery methods?
Our port location: Chongqing, Shanghai or other main port of China
Delivering to: Worldwide
Delivering method: by sea, by air, by truck, by express, combined transportation
How long is the product date of delivery probably?
Delivery date differs with product type, order quantity, special requirement etc. Usually our big machine delivery date is around 10 ~ 20 days; test equipment or analyzer delivery date is around 5~10 days. Some products have stock, contact us anytime to get more information.
How long is the warranty period?
We warrants the plant supplied under agreed specification against defects in material and workmanship under normal use and service for a period of 2 years after start up of the system.
How is the technical services on the product?
Engineer available to service machinery overseas. If you have any technical question, you are welcome to contact us any time. We will response promptly and answer to your satisfaction. If required and necessary, we can send our engineer to your place to provide technical support.