Home > Products > Test Equipment/ Oil Analyzer > GC-7890MD Insulation oil DGA transformer oil dissolved gas analyzer
GC-7890MD Insulation oil DGA transformer oil dissolved gas analyzer
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1 (Min. Order)
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Product Description
Gas chromatography transformer oil dissolved gases analyzer
(GC-7890MD)
Product Description
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.
Tehcnical Parameters
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 ℃ ~ 399 ℃; (in increments of 1 ℃), (set effectively parameter up to 399 ℃, allowing using but not to guarantee the technical index) 2) Temperature fluctuation: no more than ± 0.1 ℃; (ambient temperature change 10 ℃ or power supply voltage change 10%). 3) Temperature gradient: ± 1% (temperature range 100 ℃ ~ 350 ℃). 4) Program heating step: 7 step 5) Heating rate: 0 ~ 40 ℃ / min (set in increments of 0.1 ℃). 6) Cooling rate: not more than 3 min when oven cool from 200 ℃ to 100 ℃ 7) Time setting: 6000 (min) Thermal conductivity detector temperature control: Room temperature plus 20 ℃ ~ 350 ℃ (index parameters). (Set parameters: room temperature plus 6 ℃ ~ 399 ℃ effective, allowing using but not to guarantee the technical index ). Temperature control accuracy: not more than ± 0.1 ℃. The remaining heating zone temperature: Room temperature plus 20 ℃ ~ 350 ℃ (index parameters). (Set parameters: up to 399 ℃ effective, allowing using but not to guarantee the technical index ). Temperature control accuracy: not more than ± 0.2 ℃. |
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) ℃ 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 |
Detailed Images
If you are interested in this device or other related equipment, welcome to contact me for more information. You can send me inquiry here or contact me at +8613983286435 (Mob/Whats App / We Chat) or sales10( at ). I will response the soonest within 24 hours.
Related Equipment
Packing&Shipping
Packing: standard export wooden case per set.
Delivery method: testing equipment are usually delivered by express or air, but other method is available if necessary.
Delivery method: testing equipment are usually delivered by express or air, but other method is available if necessary.
Company Introduction
Located at Chongqing city--a southwest electromechanical manufacturing center as well as national municipality, Chongqing TOP is a professional leading manufacturer and supplier of oil purifiers and various related testers. We consists of departments respectively for technological development, machinery manufacture, instrument manufacture, quality control etc. On basis of mature development and manufacture technology and highly qualified production management team, the products own high quality, easy operation, excellent performance and lone service life.
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.
Certifications
FAQ
1. What is the mini order quantity?
MOQ: generally 1 unit/piece/set
2. What payment methods are supported?
Payment method: By T/T, L/C, Alibaba Trade Assurance etc.
3. 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
4. How long is the product date of delivery probably?
Delivery date differs with product type, order quantity, special requirement etc. Usually this testing equipment delivery time is around 5~10 days. Some products have stock, contact us anytime to get more information.
5. 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.
6. 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.
If you're interested in the equipment, welcome to to contact me for more information.
Contact Us
- Chongqing Top Oil Purifier Co., Ltd
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