Portable Flow Meter
for Dirty or Aerated Liquids
Troubleshoot Flow from
Outside a Pipe.
Simple 5-key Calibration
300,000 Point Data Logger
Built-in Rechargeable Battery
Use a PF D550 Portable Doppler Flow Meter to
monitor and balance flow, or to troubleshoot
flow problems in full pipes. It is ideal to
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 PF D550 ultrasonic sensor is clamped
on the outside of a pipe. An 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 PF D550 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.
No Calculations - No Programming Codes - Select your choice of display units: the PF D550 will display and totalize
flow volume in gallons, litres, cubic feet or cubic metres. If you change
from one measurement system to another, the PF D550 will automatically
and instantly calculate and convert the flow display and totalizer. Calibrate
to the pipe size using the keypad to enter inside diameter.
Built-in 300,000 Point Datalogger and PC Software - Set up the PF D550’s data logger to store time and date stamped
flow values from 10 second to 5 minute intervals. Or use 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 PF D550’s USB output. Logger
software (included) displays data in both graph and table formats and
exports to graphic or text file formats for use in other programs.
Quick, Easy Flow Measurements from Outside a Pipe - Each PF D550 comes complete with 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 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 gel (included) on the sensor
face and mount the sensor on the outside of a pipe with the stainless steel
mounting bracket (supplied). Use the five-key calibration system to enter
pipe diameter and to select your choice of engineering units (gallons, litres
etc.) The PF D550 will immediately begin to display, transmit and totalize.
“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 PF D550 returns to sleep until the next logger
point is required. With 5 minute sample intervals the PF D550 can data
log for about 18 days on battery power.
New Signal Processing for Reliable Accuracy - The PF D550 Doppler flow algorithm filters out background noise and
interference. The 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 for a Full Day’s Work - With its built-in NiMH rechargeable battery, you can operate the
PF D550 up to 18 hours continuously. Display brightness is adjustable
to conserve power. Plug into an AC outlet (100-240VAC 50/60Hz) to
activate the 4-20mA output and to recharge fully in 6 to 8 hours.
You can continue to use the PF D550 while charging.