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Immersible Gas Flow Meter

NATURAL GAS & PROPANE IMMERSIBLE THERMAL GAS MASS FLOW METER

BOILERTRAK

Features

  • Fast response flow meter optimized for natural gas or propane measurement applications
  • 200 millisecond response to changes in flow rate
  • Programmable pulse output for remote totalization
  • Optional Modbus communication
  • Smart electronics permit field adjustment of critical flow meter settings
  • Field validation of flow meter calibration
  • Outstanding rangeability
  • 2 x 12 backlit LCD display totalizer values along with instantaneous flow display
  • Minimal flow blockage and low pressure drop
  • CE approved

 

Sierra Instruments' Boiler-TrakTM Immersible Thermal Mass Flow Meter provides an optimized solution for natural gas or propane flow measurement applications. Boiler-Trak is designed to provide an economical solution to new regulations for the burning of natural gas or propane in heaters and boilers. The meter's sensor offers long-term reliability and a 200 millisecond response to changes in flow rate.

The versatile microprocessor-based transmitter integrates the functions of flow-range adjustment, meter validation and diagnostics in probe-mounted NEMA 4X (IP65) housing. Mass flow rate and totalized flow, as well as other configuration variables, are displayed on the meter's 2 x12backlitLCDpanel.

The meter also provides an optical/galvanic isolated 4-20 mA output and two alarm outputs along with a programmable pulse output for remote totalization. An optional Modbus Communications package is also available. The programmable transmitter is easily configured via RS-232 and Sierra's Smart InterfaceTM WindowsTM based software (supplied with the meter) or three pushbuttons in the device. Boiler-Trak is suitable for pipes or ducts from 1-inch to 6-inches.

IMMERSIBLE GAS FLOW

Dimensional Specifications

(L) DIMENSIONS
CODE L
L04 4.0 (101.6)
L06 6.0 (152.4)
L09 9.0 (228.6)
L13 13.0 (330.2)

Dimensional Specifications

Wetted Material

Probe 316SS

Sensor 304SS, glass coating epoxy

Enclosure

NEMA 4X (IP65) powder-coated cast aluminum

Electrical Connections

One 12-inch female NPT

Mounting

38-inch tube compression fitting with 12-inch male NPT

Certifications

CE approved

Performance Specification

Accuracy of Point Velocity
  • +/- 1% of full scale (actual gas calibration)
  • +/- 1% of full scale +/- 3% of reading (correlation)
Repeatability
  • +/- 0.2% of full scale
Temperature Coefficient
  • +/- 0.02% of reading per °F within +/- 50°F of customer specified conditions
  • +/- 0.03% of reading per °F within +/- 50°F to 100°F of customer specified conditions
  • +/- 0.04% of reading per °C within +/- 25°C of customer specified conditions
  • +/- 0.06% of reading per °C within +/- 25°C to 50°C of customer specified conditions
Pressure Coefficient
  • .02% per 7 kpa for natural gas / Methane / Propane
Reponse Time
  • 200 milliseconds to 63% of final velocity value

Standard Calibrated Flow Rates

IN VARIOUS SIZES OF SCHEDULE 40 PIPING - STP = 70°F, 1ATM (21°C, 101.3 KPA)

1.25" 80 SCFM (2.1 NM3/min)
1.5"

110 SCFM (2.9 NM3/min)

2" 185 SCFM (4.9 NM3/min)
2.5" 265 SCFM (7.0 NM3/min)
3" 410 SCFM (10.8 NM3/min)
4" 705 SCFM (18.5 NM3/min)
6" 1600 SCFM (42.1 NM3/min)

Immersible Gas Flow Meter

 

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