
FP-4400 PORTABLE CLAMP-ON ULTRASONIC FLOW METER
ONICON Incorporated 727.447.6140
Page 23 onicon.com
STATUS
Pressing DOWN from the Main Display will take you to the Status page. This page
shows the status of the measurement itself, present flow Velocity, present Flow
rate, Min Flow (read-only) as set in the Calibration menu, Signal strength, Exp.
SOS (Expected fluid Speed Of Sound), and Meas. SOS (Measured fluid Speed Of
Sound). Press UP, CHECK, or POWER to return to the Main Display.
Velocity
– Shows the measured velocity in either ft/s or m/s, as set in the Units/
Mode menu.
Flow
– Shows the measured flow rate in units set in the Units/Mode menu.
Min Flow – Shows the min flow rate as set in the Calibration menu. Any flow rate
below the Min Flow results in the flow rate displaying as 0.0
Signal
– Shows the magnitude of signal being received by the ultrasonic sensors.
100% is the ideal signal strength. Signal strengths less than 100% could indicate
poor pipe conditions (corrosion), highly aerated water, or programmed setup
parameters which don’t closely match field conditions. Consideration should be
made to use 1-cross installation method in such cases, if not already using it.
Messages
Log Used
0.00007%
Data Log
Logging
Battery Level
Charger
Sensor
98%
Off
Good
Status
Flow
0.00 USG/m
Velocity
0.00 ft/s
Min Flow
Signal
Exp. SOS
4.00 USG/m
100%
4901 ft/s
Meas. SOS
4867 ft/s
MESSAGES
Pressing the UP arrow button from the Main Display will take you to the
Messages page. This page shows the status of the Data Log in plain text,
percentage of the Log Used, the Battery Level fuel gauge in plain text, Charger
status, and Sensor status in plain text. Press DOWN, CHECK, or POWER to return
to the Main Display.
Data Log
– Status can be Stopped (not logging) or Logging. Matches state of the
icon on the Main Display.
Log Used
– Percentage used of the internal storage for the data log. The FP-4400
has storage for approximately 12.5 million logs, or almost 4 years at the fastest
logging interval of 10 seconds/log.
Battery Level
– Percentage remaining in the fuel gauge. Meter will automatically
shut-down at 0% with no charger connected.
Charger
– Shows either Charging or Off. Meter indicates charging when
connected to a charger attached to mains power and the battery level is below
98%. Indicates Off with or without the charger connected when the charge
reaches 100%.
Sensor
– Shows Good, Low Signal, Short, or Open. Low Signal indicates that the
transducer connections are good, but there is no signal (entrained air or solids
in the line, or empty pipe). Sensor Short or Sensor Open indicates a short or
open connection in the transducer cable(s) or transducer(s) themselves. Use a
multimeter to check for shorts or opens in the cable(s) and transducer(s).