FDT-25 Handheld Ultrasonic Flowmeter
5
§1.5 Typical Applications
The FDT-25 flow me ter can be virtually applied to a wide range of measurements. The measured
pipe ranges 20
-
6000 mm [0.5
-
200 inch]. A variety of liquid applications can be accommodated:
ultra-pure liquids, potable water, chemicals, raw sewage, reclaimed water, cooling water, river water,
plant effluent, etc. Because the instrument and transducers are non-contacting and have no moving
parts, the flow meter can not be affected by system pressure, fouling or wear. Standard transducers
are rated to 110 ℃. Higher temperatures can be accommodated. F or further infor mation, please
consult the manufacturer f or assistance.
§1.6 Data Integrity and Built-in Time-Keeper
All user-inputted configuration values are retained in the built-in non-volatile flash memory that
can store them for over 100 years, even if power is lost or turned off. Password protection is provided
to avoid inadvertent configuration changes or totalizer resets.
A time-keeper is integrated in the flow meter for the index of date totalizing and works as the time
base of flow accumulation. It keeps operating as long as the battery’s terminal voltage is over 1.5V.
In case of battery failure, the time-keeper will not keep running and it will lose proper time values.
The user must re-enter proper time values in case the battery becomes totally exhausted. An improper
time value affects no other functions but the date totalizer.
Optional transducer
STD-HS
*
Standard Clamp on transducer small, pipe size DN15 to DN100 (3/4” to 4”)
STD-HM Standard Clamp on transducer medium, pipe size DN50 to DN700 (2” to 28”)
STD-HL Standard Clamp on transducer large, pipe size DN300 to DN6000 (12” to 240”)
HT-HS High Temp Clamp on transducer small, pipe size DN15 to DN100 (3/4” to 4”) HT-
HM High Temp Clamp on transducer medium, pipe size DN50 to DN700 (2” to 28”) HT-HL
High Temp Clamp on transducer large, pipe size DN300 to DN6000 (12” to 240”)
* STD-HS provided as standard with FDT-25. Other Transducers sold separately.
