HORN FMT 40 User manual

OPERATING MANUAL
Flow meter FMT 40
FMT 50
FMT 80
FMT 120
01/2001 Subject to technical alterations. Text and layout protected by copyright. Reprints and copies, even in part, only permitted with written consent.
Before using this unit it, is absolutely necessary to read the operation manual. In case of
mal functions and damages of the unit caused by insufficient knowledge of the operation
manual, the warranty claim will be void.
• General informations
• Assembly instructions
• Operation
• Maintenance
• Spare parts

Contents
1. Safety precautions
1.1 Description of symbols and precautions
1.2 Working safety instructions
1.3 Requirements to operation site
2. General informations
2.1 Manufacturer
2.2 Range of use
2.3 Description
2.4 Technical data
3. Assembly instructions
3.1 Assembly instruction FMT at HORNET
40
3.2 Assembly instruction for subsequent
attachment of FMT at HORNET 50 II, 80,
120
4. Operation
4.1 Switch on of display
4.2 Counting operation
4.3 Reset of indicated flow rate
4.4 Indication/activation of total
flow rate
4.5 Reset of total flow rate
4.6 Switch off display
4.7 Accuracy of measurement
4.8 Calibration
5. Maintenance
6. Service
7. Spare parts
-2-

1. Safety precautions
1.1 Description of symbols and precautions
Operating safety symbol
This symbol is to be found at all safety instructions in this operating manual, where a danger of life
and health of individuals exist. Please follow these instructions and behave especially careful in
these cases. Pass on these instructions to other users. Besides the instructions of this operating
manual the general safety and accident preventive rules must be observed.
Caution symbols
The“caution”symbolisfoundinthisoperatingmanualwherespecialattentionshouldbegiven
so that existing regulations, laws, precautions and the correct operating process can be
followed in order to avoid damages to the product and/or other parts of the unit.
1.2 Working safety instructions
TheelectronicallyoperatingflowmeterFMTisdevelopedandbuiltunderrelevant,fundamentalhealth-
and safety requirements and the important EC-regulations. Nevertheless, this product can cause
damage if it is not used as advised. Every person who is dealing with assembly, line up, maintenance
and operation of the meter must read and understand the whole operating manual.
TheelectronicallyoperatingflowmeterFMTisonlytobeusedfordeliveryofthin-fluid media
of danger class AIII (flashpoint 55°C - 100°C).
Anyother use aswell as anymodifications of theproduct have tobe considered asimproper use. The
manufacturer will not be held responsible for any damages resulting from such inproper use, the risk
lies solely with the user.
Electrical parts are non explosion-proof. Operation in an explosion-proof area and with
liquids of danger class AI, AII and B (flashpoint below 55°C) may cause explosions.
Aproperuseoftheproductalsoimpliestheobservanceoftheconditionsspecifiedbythemanufacturer
regarding assembly, line-up , operation and maintenance.
For the operation of the electronically operating flow meter FMT the local safety and accident
preventative measures are binding in any case.
1.3 Requirements to operation site
SincefuelandDieseloilarewater-pollutingliquidsallregulationsregardingprotectionofground water
and environment must be observed.
-3-
caution!

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.
- ThedetectionofthemeasuredvaluesisdonebytheFMTmechanicallytotheflow,followingtheprincip
of the radial turbine wheel meter. The measured values are transmitted
without sealing and contact, electronically processed and indicated on
display.
- TheflowmeterFMThasatwo-digitdisplaywhichisswitchedonautomatically
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 summemorydevice isnot cleared incase of batterychange.
- The keyboard is simple to handle and to be used for input of the user’s
parameter.
- TheflowmeterFMTisprecalibratedfor the dispensing of fueloilandDiesel
oil. The measurement of other thin-fluid media is also possible. For this
purpose a calibration by the user is possible.
- ThetoppartoftheFMTcasingcanbetwistedabout90°whichoffersaconvenientreadingofthedisplay
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

3. Assembly instruction
3.1 Assembly instruction FMT at HORNET 40
1. Before assembly all parts have to
be checked for particles of packing
material.
2. Set O-ring (3) on the first groove of
the hose nozzle (4).
3. Screw 3 screws M 4 x 8 (5) with a
number of threads into the pump
adapter (6).
4. Screw the pump adapter on the
meter. Please notice that the arrow
onthebottompartofthemetermust
direct away from the pump.
5. Setpumpadapterwithmeteronthe
hose nozzle of the pump (adapter
must have contact to the pump
body). Tight the set screws (5) with
the delivered pin key.
6. Press seal ring (red) (1) right down
into the thread of the hose nozzle
(2).
7. Mount hose nozzle into the
discharge hose plug and on the
dischargeG1”thread(7)ofthemeter
tightly.
8. After assembly, check all
connections for leakage.
-5-
5 6
3 4 7 1 2

-6-
3.2 Assembly instructions for subsequent attachment
of FMT at HORNET 50 II, 80 and 120
1. Before assembly all parts have to be
checkedforparticlesofpackingmaterial.
2. Back off discharge hose (1) from 90°
elbow (2).
3. Unscrew the G1“ elbow (2) from the
pump(3) (warmtheendings,e.g.with a
hot air sprayer).
4. Push each of both delivered O-rings
D.29x3 on the upper and underside on
the threads of the meter (5).
5. Screw the provided extension (4) into
the pump.
6. Screw the meter into the extension and
line up to the correct position. If it is not
possible to adjust the correct position
with the above mentioned O-rings,
please use the other O-rings (D.29x2,5
or D. 29x3,5). The arrow on the bottom
part of the meter must direct away from
the pump.
7. Screwthesecondextensiontothemeter
andthenconnecttheprovidedG1“elbow
(6) (please notice the correct position).
8. Tighten discharge hose to the elbow .
9. After assembly, check all connections
for leakage.
Illustration: HORNET W50 II
132
4
6
5

-7-
4. Operation
4.1 Switch on of display:
Automatic switch on of display at beginning of dispensing.
Manual switch on by pushing button START / STOP.
4.2 Counting operation:
Indicationofdispensedrate ontopline,totalquantity(TOTAL1,2,3,4 or 5)isindicatedonbottomline.
Sum up of total quantity TOTAL 1 as well as partial quantity (if activated).
4.3 Reset of quantity indication:
Press button START / STOP means quantity indication = 0.00.
4.4 Indication / activation of a total quantity:
Use of button TOTAL means changing between the five total quantities. TOTAL 1 is always, TOTAL
2,3,4 and 5 are only indicated if activated.
4.5 Reset of total quantity:
ThequantityTOTAL2,3,4or5isactivated.ThebuttonTOTALhastobepressedatthesametimewith
button . The corresponding quantity is set to 000000. A reset of quantity TOTAL 1 is not possible.
4.6 Switch off display:
In case that the flow rate is not recorded within 90 seconds and no button is pressed, the display will
be switched off automatically (modus of saving energy). The indicated values are saved and will be
shown on display again after switch on of the FMT.
4.7. Directions of measuring accuracy:
Theflow meter FMTisforrecording thedispensedliquidquantity. By manufacturingitis precalibrated
for the dispensing of fuel oil and Diesel oil. The highest measuring accuracy will be reached at a
dispensing with a constant flow rate.
Different causes can influence the intended measuring accuracy.
1. Viscosity of dispensed liquid
2. Kind of dispensed liquid
3. High pulsation and flow rate of the dispensing pump
4. Mounting conditions
In case of an inaccurate measuring the FMT can be recalibrated (as described under point 4.8).
A recalibration is also necessary in case that the FMT has to be dismantled or if other liquids as fuel
oil and Diesel oil are dispensed.

4.8 Calibration:
PressbuttonPRESETforapprox.fivesecondmeans
starting calibration process. Indicated is on top line
0.00aswellasonbottonlinetheactivatedcalibration
factor (CAL 1 or 2).
The calibration factor CAL 1 is fixed on 1000 and is
not changeable. The calibration factor 2 is fixed by
manufacturer on 1000 and can be changed.
Thecalibrationmodecan be switchedoverbetween
CAL 1 and 2 by pressing button PRESET: Press
button START for approx. one second means
activation of the indicated calibration factor.
The calibration process can be interrupted at any
time by pressing button TOTAL.
In order to carry out an own calibration of the meter
following steps are necessary:
1. Activation of CAL 2 (as mentioned above).
2. Dispensing of a chosen quantity (e.g. 20 Liter/ 5 gallons) into a measuring vessel.
3. After dispensing the calibration has to be changed with buttons and as long as the indicated
quantitiy is conforming with the measured quantity in the vessel.
4. Press button START for approx. one second.
Notice: A modification of CAL 2 is also possible without previous dispensing quantity.
5. Maintenance
- The meter just requires very little maintenance.
- Nevertheless, due to existing regulations the casing must regularly be checked for damage.
- Whenthebatteryhastobechangedthebatterysymbolisshowninthedisplay.Carefullyopenmeter
housing and remove battery from the lower part of the housing. Set in new battery and fix with
provided cable. Close meter housing.
(Battery kit: spare parts list pos.-no. 130)
6. Service
The meter was developed for operation with a minimum of maintenance. Therefore, please use this
FMT as described in the operation manual. In case you need service, please contact our after-sales
service: (0049) 461 - 869627.
-8-
Start
Stop
Preset
Total

-9-
7. Spare parts list for meter FMT:
Pos.-no. Description amount FMT 40 FMT 50 FMT 80/120
10 Upperside housing 1 512870002 512870002 512870002
20 Underside housing 1 512870001 512870001 512870001
30 Cover of measurement chamber 1 512870003 512870003 512870003
40 Measuring wheel cpl. 1 612870004 612870004 612870004
50 Gasket cord D.2,5 1 404902400 404902400 404902400
60 O-ring D.47x3,5 1 404107860 404107860 404107860
70 EJOT screw 3,5x12 10 403310060 403310060 403310060
80 EJOT screw 2,5x6 5 403310055 403310055 403310055
90 Keyboard foil 1 512870005 512870005 512870005
100 Electronic parts meter FMT 1 812878005 812878006 812870007
110 Nozzle 1 612870003 612870003 612870008
120 Disc D. 3,2 1 403200100 403200100 403200100
130 Battery kit 1 812878008 812878008 812878008
140 Wire gauze 2 - 612870010 -
150 Guard ring 1 - 403222170 -
-
Attachments meter FMT connectable to Hornet 40 1 912870002 - -

-10-
Notes: