Digital thermal mass flow-meter Aalborg
RS-23 / RS-485

AALBORG®'s Model DFM MULTI-PARAMETER DIGITAL MASS FLOW METER with Digital Signal Processing provides accurate data on three different fluid parameters: flow, pressure, and temperature.

FEATURES:

- Multi-drop capability up to 256 units (for RS-485 option).
- Stores calibration data up to 10 different gases.
- Supports 10 engineering + user defined units.
- Programmable 12 digit Totalizer indicates total gas volume.
- Flow alarm limits for high & low gas flow.
- Pressure alarm limits for high & low gas pressure with relay output.
- Temperature alarm limits for high & low gas temperature with relay output.
- 4 button keypad & large 128x64 graphical LCD with back light.
- Digital (RS-232 or RS-485) & Analog outputs operate simultaneously.
- Internal conversion factors up to 32 gases.
- Automatic 0 adjustment.
- Self- diagnostics.

INTERFACE:

Features accessed via local keypad & LCD. The digital interface operates via RS485 (RS-232 available) & provides access to internal data including: flow, temperature, pressure reading, auto zero, totalizer & alarms settings, gas table, conversion factors & engineering units selection, dynamic response compensation & linearization table adjustment.
Analog interface provides 0 to 5Vdc, 0 to 10Vdc or 4 to 20 mA outputs for flow, pressure & temperature.
LEAK INTEGRITY:
1 x 10-9 smL/min of Helium maximum to outside environment.

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