Greyline Instruments PDFM-5.1 Specifications
Portable Flow Meter
for Dirty or Aerated Liquids
Troubleshoot Flow from a PipeOutside
Non-Contacting
Doppler
Flow Meter
Greyline PDFM 5.1
Displays, Datalogs
Transmits and Totalizes
Flow in Closed Pipes
Simple -key Calibration5
300,000 point Data Logger
4-20mA Output
10-Digit Totalizer
AC/DC Operation
Built-in Rechargeable Battery
Versatile, Easy to Use
Ideal for Problem Liquids
Fast, Easy Flow Measurement
Ultrasonicwith Non-Contacting Sensor
Use a Greyline PDFM 5.1 Portable Doppler Flow Meter to monitor and
balance flow, or to troubleshoot flow problems in pipes. It is ideal tofull
evaluate performance of in-line flow meters and can be installed,
calibrated and started-up in minutes. Use it for projects where a
permanent flowmeter is not required or to temporarily replace installed
flow transmitters.
The PDFM 5.1 ultrasonic sensor is on the outside of a pipe. Anclamped
acoustic pulse is reflected back to the sensor from particles or gases in
the flowing liquid. The flow rate of any fluid can be measured as long as it
contains air bubbles or solids. It is ideal for wastewater, slurries, sludge,
and most chemicals, acids, caustics, and lubrication fluids.
With its internal battery the PDFM 5.1 can be operated all day and then
recharged overnight. For continuous use it can be powered by a supplied
110-240VAC wall plug adapter. A 300,000 point data logger is built-in.
Solve Flow Problems
w Troubleshoot and Balance Flow
w Check Performance of Pumps or
other Flow Meters
Quick, Easy Flow Measurements from Outside a Pipe
Each Greyline PDFM 5.1 comes complete with carrying case,rugged watertight
strap-on sensor and stainless steel mounting kit. Use the simple 5-key menu
system to select units of measurement and to calibrate to any pipe diameter ½”
(12.5 mm) or larger.
Simple start-up and Calibration
Sensor mounting and a full calibration can be done in just a few minutes. It is
fast and easy! Put coupling compound ( ) on the sensor facegel included and
mount on the outside of a pipe with the stainless steel mountingthe sensor
bracket (supplied). fiveUse the -key calibration system to enter pipe diameter
and to select your choice of engineering units (gallons, litres etc.) The PDFM 5.1
will immediately begin to display, transmit and totalize.
No Calculations - No Programming Codes
Select your choice of display units: the PDFM 5.1 will display and totalize flow volume in gallons, lite s, cubic feet or cubicr
meters. If you change from one measurement system to another, the PDFM 5.1 will automatically and instantly calculate
and convert the flow display and totalizer. alibrate to pipe size using the keypad to enter inside diameter.C the
Built-in 0,000 point Data ogger30 l and PC Software
Set up the PDFM 5.1's data logger to store time and datestamped flow values from 1 second to minute intervals. Or use05
the convenient 'Flow Report' format where total, minimum,
maximum and average flow rates are stored in your choice of
hourly or daily summaries. Transfer flow logs to your PC or laptop
through the PDFM 5.1's outpu . Greyline Logger softwareUSB t
(included) displays data in both graph and table formats and
exports to graphic or text file formats for use in other programs.
“Sleep Mode” for Extended Data Logging on
Battery Power
Sleep mode extends battery life for long-term data logging at
locations where AC power input is not available. Between logging intervals the flowmeter drops into a stand-by mode until
a flow reading is requested by the data logger. Flow rates are sampled continuously for 10 seconds and then the PDFM
5.1 returns to sleep until the next logger point is required. With 5 minute sample intervals the PDFM can data log for about
18 days on battery power.
New Signal Processing for reliable Accuracy
The PDFM 5.1 Doppler flow algorithm filters out background noise and
interference. The high speed digital signal processor discriminates against
weak and distorted signals. When the processor cannot measure accurately
the meter will display zero flow and indicate low signal confidence.
Battery Powered a Full Day’s Workfor
BACKGROUND
NOISE
DOPPLER SIGNAL
With its built-in rechargeable battery, you can operate the PDFM 5.1 .NiMH up to 18 hours continuously Display
brightness is adjustable to conserve power. (100-240VAC to activate the 4-20mA outputPlug into an AC outlet 50/60Hz)
and recharge fully in to hours. You can continue to use the PDFM 5.1 while charging.to 6 8
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