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GFM | Gas Flow Meter 2.0 

GFM | Gas Flow Meter 2.0
 Description 
The Gas Flow Meter 2.0  (GFM) is a portable, explosion-proof, battery-powered direct measurement instrument designed to determine an accurate 
leak rate from various pipe connectors, valves, compressor rod packings/seals and storage tank emissions typically found at compressor stations, 
production wells, processing, storage, LNG, regulator and city gate stations in a natural gas environment. 

Fugitive emissions from can be captured by sampling at a high flow rate, where both gas and air pass through the sampler allowing measurement of gas concentration and flow rate. A small-sized Non-Dispersion Infrared (NDIR) optical sensor with a wide temperature range  of –40 to 140°F measures the concentration of natural gas with great accuracy and resolution down to 0.005 SCFM or 0.15 LPM. 

The GFM is installed in a case and can be attached to a backpack harness, leaving the operator’s hands free for use when climbing stairs and descending into confined spaces or use without the backpack harness to hand carry for simple jobs. Use the GFM wirelessly with an Android phone (version 6.0 or higher) to display technical information or assume control of the instrument. Record data by the press of a button as well as a photo of the component in question, if the operator wants to report both across communication channels. Reception distance is up to 15 feet with low energy consumption allowing uninterrupted measurements for approximately 14 hours.

Advantages

  • Graphic TFT display – thin film transistor liquid crystal display, active matrix LCD technology, vastly improved image quality and contrast compared to passive matrix LCD
  • Rechargeable Lithium Ion battery for low temperature operation
  • The degree of protection of the enclosure shell is IP 54
  • Small size and weight making it the most portable sampler on the market

Features

  • The main console is aluminum
  • The components in the main console are designed as a block structure making future maintenance simple, yet reliable for long term use.
  • The blocks are easily detachable and have IP68 level protection of the shell
  • For maintenance and repair, the blocks supplied get calibrated, which allows the special calibration gases

Certification

Hazardous Area Intrinsic Safety Evaluation, Testing and Certification is currently underway by UL LLC.
 Specifications

Weight & Dimensions (L x W xH) 9.3 lbs (4.2 kgs):   11.4” x 11.2” x 3.9” (290 x 285 x 100 mm)

Display:                                                       Graphic TFT display - thin film transistor liquid crystal display, active matrix LCD                                                                                       technology, vastly improved image quality and contrast compared to passive matrix LCD

Temperature:                                                 Operational  -40 to 140°F (-20 to 50 °C)

Humidity:                                                     5 to 95% RH (non-condensing)

Battery:                                                       3.7 V Lithium Polymer explosion-proof, low temperature rechargeable.

Capacity:                                                     11.0 Ah

Charging Time:                                              Up to 10 hours

Duration of Work:                                           More than 8 hours (cyclic mode)

Method of Measurement:                                  Pressure drop across the Venturi tube

Measured Quantities:                                       Sample flow rate; background gas concentration; gas concentration in the sample;                                                                                     battery capacity

Estimated Values:                                           Leakage concentration taking into account the background gas level; leak intensity;                                                                                   difference between 1st and 2nd leak rate measurement

Measured Leakage Rate:                                   1.0 to 350.0 l/min

Minimum Detectable Leak Rate:                          From 0.15 l/min

Leak Rate Measurement Error :                           ±5% of reading

Sample Flow Rate:                                           Maximum - 350 l / min; Medium - 250 l / min;

Low - 150 l/min;                                             In two-stage mode second speed lower than initial speed by 25%

Flow Measurement Accuracy:                              ±5% of reading

 
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