AAlborg DFM Multi-Parameter Digital Mass Flowmeter


DFM Multi-Parameter flow meter provides accurate information on three different parameters: Gas flow rate, Temperature and Pressure.

Parameter settings can be made via the keypad LCD screen and RS232/RS485.

DFM Flow Meter shows total flow, instantaneous flow, temperature and pressure values, and alarms can be defined for flow, pressure and temperature with 2 programmable relays. It supports 0-5 Vdc, 0-10 Vdc and 4-20mA analog output functions for flow temperature and pressure and can be selected via Jumper.

DFM akış Ölçer aşağıdaki mühendislik birimlerini destekler
%FS, L/dak, L/h, mL/dak, mL/h, scuft/h, scuft/dak, lb/h, lb/dak

DFM stores standard calibration data for up to 10 gases, which allows you to read 10 different gas flow rates with calibration from the same flowmeter. It also stores the conversion K factor for up to 32 Gases. The User can choose any of these gases.

Technical Properties

  • Brand / Model Aalborg / DFM26, DFM36, DFM46
  • Analog Output 4 - 2mA, 0 - 5 VDC, 0 - 10Vdc
  • Digital Output RS485, RS232 Optional
  • Accuracy ± 1.0%
  • Sampling Time 0.6 to 1 sec. Within ±2% of actual flow rate over F.S 20% to 100%
  • Ambient temperature 0….50°C
  • Measurement Gases Ability to select up to 32 different gases with 10 Calibration
  • Supply Voltage 12 Vdc 15Vdc or 24 Vdc
  • 316L pass. Steel, 416 Rust. steel, viton
  • Operating temperature -10…50°C
  • Display 128X64 Graphic LCD
  • Pressure DFM 27, 36, 46: 1000 PSI maximum DFM 27, 37, 47: 200 PSI
  • Measurement Range 0 -10ml/min to 0-100 L/min
  • Line Diameter 1/4" - 3/8" Fittings
  • O-Ring Buna-N, Neoprene or Kalrez (O-rings are optional)