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DMDF1 Enhanced Clamp-on Doppler Ultrasonic Flowmeter

Features:

  • DMDF1 employs Doppler ultrasonic technologies to measure solid-bearing or aerated liquids in metal or plastic pipe
  • Non-fouling transducer is immune to build-up of grease, paraffin and other coating materials
  • Pipe ranges from 25 to 3050mm, and long straight is not necessary
  • Clamp-on, insertion and portable types are available
  • Keypad design for transmitter makes the site setup easy and convenient
  • LCD indicates flowrate & total flow
  • Long-term stability never requires re-calibration and maintenance is free
  • Communication protocols allow direct interface to loggers and control systems

Transmitter

Power Supply

10-28 VDC@ 2.5VA max, 90-240VAC 50/60Hz ±15%@ 5VA max for the user to choose on wiring terminals

Velocity

-12 to +12m/s

Display

4 line x 16 English letters LCD back lit, display total flow, flow rate, velocity and meter running status etc.

Units

Rate

Totalizer

User Configured (English & Metric)

Rate and Velocity Display;

(Forward Total, Reverse Total, Net Total (difference between forward and reverse flow)

Output

All outputs are isolated from earth and system grounds. 4-20mA: 1000 ohm max, veracity: 0.1%

Pulse output: 1-9999Hz(from OCT), flow rate or totalizer output

RS232C or RS485, options: up to 8GB Data logger, Hart +(4-20mA), Modbus, data logger (up to 8GB SD card capacity)

Ambient condition

-40 to 55℃, 0-95% relative humidity, non-condensing

Enclosure

NEMA 4X (IP65) polycarbonate SS Brass and plated steel:

214H*193W*77D (mm)

Accuracy

±1.0%of reading at rates >0.5 m/s

±0.005 m/s of reading at rates<0.5 m/s

Sensitivity

Flowrate: 0.001ft/s (0.0003m/s)

Repeatability

0.2% of reading

Responding time

500ms display refresh, sampling cycle 7.5ms

Explosion proof

Exd II BT6 certified

Security

Keypad lockout, access code enable

Other functions

Automatic record incident and functions of managing of flow

Remember the state of the flowmeter diagnosis

Transducer

Liquids types

Virtually most liquids containing less than 2% total suspended solids or aeration

Suited liquid temperature

Std. temp. transducer (-40 to +121℃)

High temp. transducer (-40 to +250℃)

Transducer to transmitter cable length

Shield cable, Standard: 6m; Option: up to 300m