3
KEY ASPECTS OF QSTAR UFM:
• Fixed or Portable system for measuring liquids in filled
piping systems.
• Uses the ultrasonic transit-time differential method.
• Heat measurement is included as standard application.
Clamp-on Fixed and Portable temperature sensors
are optional.
• Portable UFM can be operated in battery-powered
mode and on a power adapter for operation with 100%
duty cycle. Fixed UFM can be operated on a power
adapter.
• Supports measurements on piping with diameters
from 1/2" to 240" (depending on the sensor used).
• The fluid to measure may have a temperature range
from -40° F to +300° F (depending on the transducer
used).
• You can save the measuring data to the internal
SD card, read the data via USB port and export this
data using Microsoft
®
office software such as Excel
(Portable UFM only).
• The device is equipped with an electrically isolated
relay output and two 4mA to 20mA current outputs
that can be operated in active and passive mode.
APPROVALS/CE
QStar UFM is compliant with the following
European Directives and Standards
Test Specifications
DIN
EN
55011 B
(11/2007)
DIN
EN
61000-4-2
(09/2008)
DIN
EN
61000-4-3
(06/2008)
DIN
EN
61000-4-4
(07/2005)
DIN
EN
61000-4-5
(06/2007)
DIN
EN
61000-4-6
(10/2008)
DIN
EN
61000-4-8
(12/2001)
DIN
EN
61000-4-11
(02/2005)
Test Requirements
DIN
EN
61000-6-1
(10/2007)
DIN
EN
61000-6-3
(09/2007)
ULTRASONIC MEASURING PRINCIPAL
FIGURE 1:
Measuring Principle
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