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Portable Dissolved Gas Analyzer(DGA)

Model No.︰DGA-200P
Brand Name︰DukeTech
Country of Origin︰China
Unit Price︰US $ 1 / set
Minimum Order︰1 set
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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

USBAK

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
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