Product Description

Overview：

Transformer on-line monitoring and fault diagnosis technology is very important for improving the safety and stability of power system.Among them, on-line monitoring technology based on dissolved gas analysis in oil is the most common and the most important technology in on-line monitoring of transformers. DGA is a powerful diagnostic tool to help you understand the health and condition of power transformers and other oil-filled equipment. Analyzing the composition and content of dissolved gas in oil is one of the most effective measures to monitor the safe operation of oil-filled electrical equipment.DK-200P Portable Dissolved Gas Analyzer using photoacoustic spectroscopy to analyze dissolved gas in oil to monitor the safe operation of oil-filled electrical equipment has the characteristics of accuracy,repeatability,maintenance-free, quick response and high precision.

 

It has pulsed IR source and 8 distinct spectral bands in the mid-IR region defined by narrow band-pass optical filters.High sensitivity is obtained by utilizing the unique microphone technology from Gasera Ltd., Finland. High selectivity is achieved by choosing up to 8 optical filters with narrow spectral bands for target gases as well as interfering gases. Several spectral regions can be used with each gas for minimal cross-sensitivity. Analysis is based on a modified classical least squares fit of sample response to calibration data.Photoacoustic technology allows high sensitivity from short optical path length which has been further improved with novel model-based non-linear compensation. This provides linear dynamic range of over five orders of magnitude. 

 

 

 

Features：

• No consumables
• Built in self-test
• Long calibration period
• Sub-ppm detection limits
• Up to 7gases simultaneously
• Analysis from very low gas volume
• Versatile programming of measurement tasks
• High-resolution graphical display with userfriendly menus
• Built in trend view for monitoring tasks, no external computer required
• Presentation of the measurement results of all gases both numerically and in graphical form

 

 

Technical Date：

Measurable gases
Gas	Limited detection	Range
Hydrogen    H2	5ppm	5,000ppm
Methane    CH4	1ppm	50,000ppm
Ethane     C2H6	1ppm	50,000ppm
Ethylene   C2H4	1ppm	50,000ppm
Acetylene  C2H2	0.5ppm	50,000ppm
Carbon Monoxide  CO	5ppm	50,000ppm
Carbon Dioxide    CO2	5ppm	50,000ppm
Moisture  H2O	0%	100%
Oxytran O2	0%	25%
Nitrogen N2	0%	80%
Physical&Mechanical
Ambient operating temperature	0 - +40°C
Operating sample temperature	0 - +45°C
Storage temperature	-20°C - +70°C
Humidity 90%	(non-condensing @30°C)
Power Supply	110-240VAC@50-60Hz
Power Consumption	50W
Weight	< 10kg
Size	400 x 330 x 220mm
Gas cell volume	< 30ml
Oil volume in extraction unit	<=50ml
Vibration endurance	IEC 60068-2-6, Test Fc
Drop/Shock	IEC 60068-2-31 and ISTA 1A
Measurement data
Dynamic range	500-50,000
Zero drift	± detection limit per 1 month
Measurement repeatability	5% of measured value in reference conditions
Range drift	5% of measured value per 12 month
Accuracy	± 5% or ± 2 ppm (whichever is greater) ±1% RH at 0-90% RH for H2O According to the specifications of the Figaro sensor for H2
User interface	Built in touch screen, virtual key pad
Communication	USB，AK
Standards	Low Voltage Measurement Directive 2006/95/EC and electro magnetic EMC Directive2004/108/EC EN 50270: 2006, EN 61000-3-2: 2006, EN 61000-3-3: 1995 + A1: 2001 + A2: 2005, EN 61010-1: 2001 Safety standards： EN61010-1 (2001), IEC 61010-1 (2001), CAN/CSA-C22.2 No. 61010-1 (2004)and UL 61010-1 (2004 incl. rev. 2005)

Payment Terms︰ TT/LC/Paypal