HORN FMT 120, Operating Manual, Page: 4 / 12

2. General informations
2.1 Manufacturer
Horn GmbH & Co. KG, D-Flensburg
Type: FMT 40, FMT 50, FMT 80, FMT 120
2.2 Range of use
The electronically operating flow meter FMT is only to be used for the delivery of thin-fluid
media of danger class AIII (flash point abow 55
°
C).
Operable temperature range of the electronic: -10
°
C to + 40
°
C.
2.3 Description
- The electronically operating flow meter FMT is for the simple measuring of liquid volumes due to
uncalibrated requirement.
- The detection of the measured values is done by the FMT mechanically to the flow, following the princip
of the radial turbine wheel meter. The measured values are transmitted
without sealing and contact, electronically processed and indicated on
display.
- The flow meter FMT has a two-digit display which is switched on automatically
at operation by button press. The first line is for indicating of the dispensed
quantity. At the same time is at the second line the indication of the total
dispensed quantity (at total 1) or rather a user´s partial sum (total 2-5)
possible. The sum memory device is not cleared in case of battery change.
- The keyboard is simple to handle and to be used for input of the user’s
parameter.
- The flow meter FMT is precalibrated for the dispensing of fuel oil and Diesel
oil. The measurement of other thin-fluid media is also possible. For this
purpose a calibration by the user is possible.
- The top part of the FMT casing can be twisted about 90
°
which offers a convenient reading of the display
at different handling positions.
2.4 Technical data
-4-
caution!
type FMT 40 FMT 50 FMT 80 FMT 120
princip of measurement radial turbine wheel meter
material (contacted by medium) all: POM, Niro 1.4571, NBR FMT 50: steel
range of measurement l/min 5-45 10-55 20-85 20-125
gpm 1.3-11.9 2.6-14.5 5.3-22.5 5.3-33
operation pressure (max.) bar (psi) 2 (29)
bursting pressure bar (psi) 10 (143)
accuracy of measurement % +/- 1
(calibrated) accuracy of repeating % +/- 0.8
display 1. line 5-digit, 12 mm high
display 2. line 6-digit, 6 mm high
dissolution Liter approx. 0.03
gallons approx. 0.008
connecting thread G 1” (external thread)
weight kg 0.32
temperature range of
evaluation electronic
°
C -10 to + 40