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

PDFM 5.1 Specifications

General Specifications

Flow Rate Range:

Pipe Size:

Display:

Power Input:

Outputs:

Data Logger:

PC Software:

Electronics Operating Temperature:

Electronics Enclosure:

Carry Case:

Accuracy:

Calibration:

Language Selection:

Sensitivity:

Approvals:

Sensor Specifications

Standard Model PSE :4

Sensor Mounting Kit:

Operating Temperature:

Greyline PDFM 5.1 Portable Doppler Flow Meter

± 1 ± 3 in most applications0. to 40 ft/sec ( 0.0 to 12.2 m/sec)
Ultrasonic Sensor mounts on any pipe from ½" to 180" ID (12.5 mm to 4.5 m)
White, backlit matrix - displays flow rate, totalizer, operating mode and calibration menu
Built-in batteryNiMH for up to 18 hours continuous operation
External with 24 inputcharger 100- 0VAC 50/60Hz
4-20mA (500 ohm) when AC powered
USB for Data Log transfer by direct PC connection
P30rogrammable 0,000 data point capacity, time and date stamped or formatted flow
reports including total, average, minimum, maximum and times of occurrence
‘ ’ s Vista or higher. RGreyline Logger for Window etrieves, displays and saves data log files

-10° to 140°F (-23° to 60°C)
Portable, ABS enclosure
Rated IP67 with protective molded foam insert
±2% of reading or 0.1 ft/sec (0.03 m/sec). Requires solids or bubbles minimum size of 100
microns, minimum concentration 75 ppm. Repeatability: ±0.1%, Linearity ±0.5%
Built-in -key programming with user-friendly calibration menu. Password protected.5
English, French, Spanish
Adjustable , Damping: adjustablecut-off
Charger is CE and UL approved. The PDFM 5.1 is not certified for use in hazardous rated
locations

Clamp-on, single-head ultrasonic for pipes from ½" to 180" ID (12.5 mm to 4.5 m) with
12 ft (3.4 m) shielded dual-coaxial cable

Stainless steel pipe clamp and 5.3 oz. (150 g) silicone coupling compound

-40° to °F (-40° to °C)300 150

END
VIEW

1.375”

35 mm

Options

Sensor Cable:

Sensor Mounting:

Dimensions

1.5”
38 mm

SIDE VIEW

3.375” / 85 mm

PSE4 ULTRASONIC
DOPPLER SENSOR

50 ft (15 m) sensor cable extension, shielded, with connectors
Extra silicone coupling compound. Additional stainless steel pipe clamps

4.33”

110 mm

8”

204 mm

12 ft / 3.6 m

ENCLOSURE

1.6”

41 mm

New PDFM 5.1

Portable Doppler Flow Meter

w No Obstruction No Pressure Drop–
w

Just Minutes to Install and Calibrate

Recommended or:f

sewage

w

treated wastewater

w

aerated water

w

sludge and slurries

w

chemicals and solvents

w

viscous liquids

w

abrasives

w

food products

w

pulp stock

w

acids and caustics

w

The PDFM 5.1 is ideal to
measure full pipe flow of
any liquid containing gas
bubbles or solids larger
than 100 microns and in
concentrations greater
than 75 ppm.

Ideal for Tough Flow Applications

The PDFM 5.1 works best with difficult liquids in“”
applications that would damage regular flow meters.
Because the sensor is mounted on the outside of the
pipe, there is no contact with the moving fluid.

The sensor straps onto the outside of pipe "ultrasonic s ½
(12.5 mm) ID or larger and measures flow in common pipe
materials: PVC, carbon steel, stainless steel, cast iron,
fiberglass, and lined pipes...any pipe that conducts ultrasound.
Doppler signals cannot be transmitted through pipe walls which contain
air pockets (materials like concrete and wood), or loose insertion liners (with
an air gap between the liner and pipe wall). Because the sensor is so easy to
install you can test any application and pipe material in a few minutes.

How it Works

The PDFM 5.1 ultrasonic sensor injects high
frequency sound through the pipe wall and into
the flowing liquid. Gas bubbles or solids
suspended in the liquid reflect the ultrasonic
signal back to the sensor. When this sound
is reflected from moving bubbles or particles
it is returned to the sensor at an altered
frequency. This frequency shift is called the
Doppler effect. The PDFM 5.1 continuously
measures the change from it's transmitted
frequency to the received frequency to
accurately calculate flow.

BUBBLES OR SOLIDS
REFLECT SOUND

SENSOR

SOUND WAVES
REFLECTED
BACK TO SENSOR

SOUND WAVE
TRANSMITTED
FROM SENSOR

How to Order

Applications Support

No Risk Appraisal

The Greyline Guarantee

Canada: 16456 Sixsmith Dr., Long Sault, Ont. K0C 1P0

Tel: [phone] Fax: [phone]

USA: 105 Water Street, Massena NY 13662

Tel: [phone] Fax: [phone]

Internet: www.greyline.com E-mail: [e-mail]

Contact a Greyline sales representative in your area or phone one of our sales
engineers. Describe your requirements and receive our prompt quotation.

Take advantage of Greyline's applications experience. Phone [phone] for
advice and information on applications, installation or service for Greyline instruments.

The Greyline PDFM 5.1 Portable Doppler Flow Meter must meet your requirements.
Discuss your application with a Greyline representative to arrange a performance test.

Quality of Materials and Workmanship - Each instrument manufactured by Greyline is
warranted against defects in materials and workmanship for a period of one year from
date of purchase. Refer to our limited warranty included with each product.

RELIABLE MEASUREMENT AND CONTROL