Aalborg DPM Multi-Parameter Thermal Mass Flowmeter
General description
Aalborg DPM series digital multi-parameter mass flow meters provide accurate measurements of mass and volumetric flow rates, pressures and temperatures of process gases. DPM mass flow meters include multi-parameter multi-gas functionality that allows users to select up to 30 different gases locally via the optional OLED/Joystick interface on-site or remotely via the RS232/RS485 interface or optional Modbus RTU interface.
Design Features
- Multi-Parameter Measurement Function: Mass Flow, Volumetric Flow, Gas Pressure and Temperature.
- Multiple Gas Measurement Function: Support for 90 different gases and gas mixtures.
- The "User Defined Mixture" function is a high precision product that allows you to create and measure up to 20 custom gas mixtures, each containing up to 5 different gases.
- Fast response time (< 20ms)
- Standard Precision ± (0.5% RD + 0.2% FS).
- Wide Measurement Range Ratio as 200 : 1.
- Two programmable mass flow rate collectors.
- Preset Alarms for High, Low or Instantaneous Flow for Mass Flow, Temperature and Pressure.
- Pulse for user-programmable mass flow (via SSR).
- Comprehensive Self-status notification via status LED or OLED indicator.
- All 3 user-selectable analog output interfaces are standard: 0-5Vdc, 0-10Vdc, 4-20mA.
- Two user-selectable digital communication interfaces (RS-232 and RS-485) are standard.
- Optional Modbus RTU communication interface with isolated RS485 transceiver.
- User programmable solid state relay.
- Universal 9-26 Vdc power supply
- High-contrast OLED (optional) graphic display.
- Free, easy-to-use configuration and calibration software (RS-232/RS-485).
Technical Properties
- Brand / Model Aalborg / DPMxx,
- Analog Output 4-2mA, 0 - 5 VDC, 0 - 10 VDC
- Digital Output RS485, RS232 Standard, RS485 Modbus Optional
- Accuracy ±(0.5% RD + 0.2% FS).At calibrated temperature and pressure
- Sampling Time 10 mS user programmable
- Ambient temperature 0….50°C
- Measurement Gases: Close to 90 Different Gases or Mixed Gases
- Supply Voltage 12- 26V DC
- Protection Class IP 40
- Operating temperature -10…60°C
- Display Graphic LCD(opt.) OLED Optional
- Pressure 10 Bar Max
- Measurement Range 0.5 -50sml/min to 0-1000 SL/min
- Line Diameter 1/8" - 3/4" NPT
