Ultrasonic Flow Meter PolluFlow
Installation and Operating Instructions
Index
Battery-operated meters:
The battery must not be opened by force, be
short-circuited or exposed to water or to
temperatures exceeding 80°C. Empty batteries
are special refuse and have to be disposed of at
suitable collection centres.
1. Important directions ..........................................1
2. Installation.........................................................1
2.1 Installation of the flow meter .......................1
2.2 Connection of the pulse transmission cable2
2.3 Specification of volumetric pulse ................2
3. Service display..................................................3
3.1 Operation of the display .............................. 3
Mains-operated meters:
3.2 User menu (example) .................................4
3.3 Archive menu (example) .............................4
Protect the power pack by using a 6 A-fuse in the
installation site. Only specially trained and
authorized experts are allowed to do the
connecting job. Furthermore pay attention to the
standard technical rules - VDE 0100 in particular.
3.4 Service menu (example) .............................5
3.5 Parameter menu .........................................6
4. Functional test, lead-sealing.............................6
5. Specification .....................................................6
5.1 Battery-operated version.............................6
5.2 Mains-operated version ..............................6
6. Possible error situations ...................................7
2. Installation
2.1 Installation of the flow meter
Supplied items:
Ultrasonic flow meter PolluFlow
Applicable standard: EN 1434-6
Installation and operating instructions
Secure that installed flow meters are always
completely filled with heat resp. refrigeration
liquid. Air bubbles will interrupt the ultrasonic
signal and, therefore, cause measuring errors.
Mounting and lead-sealing material
1. Important directions
An arrow on the flow meter shows the flow
direction. The admissible operating pressure and
the admissible operating temperature must not be
exceeded.
This instrument has been delivered by the
producers in consistency with sound safety
engineering. In order to ensure a safe installation
and operation job read the complete instructions.
It is only allowed to open covers and remove
parts, where this can be done by hand. Otherwise
life parts might be exposed. And connectors can
be alive, too. All repair and maintenance jobs
have to be done by specially trained and
authorized experts. If body and/or connection
cables show any damages put the instrument out
of operation and ensure that nobody can restart
its operation by mistake.
Install shut-off valves before and after the flow
meter, so that there is no need to empty the pipe
system when the meter will be exchanged on
expiry of the verification period. If necessary, a dirt
trap suitably located in the heating pipe system
reduces particle sediments. At first install a fitting
piece instead of the flow meter and flush the pipe
system thoroughly. Then close shut-off valves,
remove fitting piece, clean sealing surfaces and
install the flow meter using new gaskets.
In order to protect PolluFlow against damage and
dirt leave it in its packing until you want to install it.
Do not clean it with anything else but a cloth
moistened with water.
M H 7400 INT PolluFlow, page 1
Ultrasonic flow meter PolluFlow
Installation and Operating Instructions
PolluFlow can be installed horizontally or vertically
(in rising or down pipes).
PolluFlow is delivered with the integrator mounted
on the flow meter. Depending on the flow meter’s
installation position, the integrator can be turned
through steps of 90 degrees. Lift the red spring
catch at the bottom side of the casing using a
slotted screw driver and take the integrator from
the C-rail. Then turn the integrator to the required
position by transposing the C-rail and fasten it
again.
If required, the PolluFlow integrator can be
removed from the flow meter and mounted
separately at a suitable place. The connection
cable can be delivered optionally with a length of
1.5 m or 3 m. Precede as before in order to
remove the integrator. Then unscrew the C-rail
from the bottom and use it as a wall adapter.
Fig. 2:
PolluFlow – integrator removed
2.2Connection of the pulse transmission cable
Connect the enclosed two-wire pulse transmission
cable to the two-pole terminal box in accordance
with fig.3.
Observe following special directions for
horizontal installation of meters of qp 15 and
more:
Both ultrasonic transducers inside of the
measuring tube have to be in horizontal
position. Therefore the PolluFlow has to be
installed with the integrator turned upwards
(see fig. 1).
Removed and separately mounted
integrators have to be installed accordingly
(see fig. 2).
2.3 Specification of volumetric pulse
Fig. 3:
Connection of pulse transmission cable
Pulser: open collector, physically separated
Left terminal: 18 (brown) positive
Right terminal: 19 (white) negative
Standard mode High-speed mode
Pulse value qp 0,6 to 6: 1 liter
qp 10 to 60: 10 liter
qp 0,6: 0,025 Liter
qp 1,5 to 3,5: 0,1 Liter
qp 6 to 10: 0,25 Liter
qp 15 to 40: 1 Liter
qp 60: 2,5 Liter
Closing time 125 ms 16 ms
Max. output
frequency
4 Hz 32 Hz
Bouncetime none
U-Max. 28 V DC
I-Max. 30 mA
Fig. 1: PolluFlow – horizontally mounted
M H 7400 INT PolluFlow, page 2
Ultrasonic Flow Meter PolluFlow
Installation and Operating Instructions
3. Service display
For servicing purposes PolluFlow is equipped with
an inside LC display. Use this display, for
example, during the plant’s start-up phase to read
the current flow or to program user-specified
numbers, e.g. an M-Bus address.
Many parts of the software, which is used for
PolluFlow, are identical to the software used for
the ultrasonic heat meter PolluStat E. However,
only display items regarding volume and flow are
relevant to PolluFlow. For this reason nonrelevant display items are shown in light grey.
Our PolluFlow offers 4 different display menus:
Fig. 4: change of display menus
User menu
Archive menu
3.1 Operation of the display
Service menu
To operate the display field use the operating key
enclosed in the accessory kit.
Parameter menu
Open the casing cover and insert the black end of
the operating key in the borehole below the
display.
In normal condition the display is in off status.
Depress the red key for approx. 2 seconds and
then release it in order to activate the first display
item of the user menu. In order to have the other
three menus displayed proceed as follows:
Depress the operating key slightly in order to
activate the display field and to change to the
various display menus.
Archive menu: Double click on key within 0.5
seconds.
In case of lost or damaged operating key, use a
suitable tool with blunt, electrically conductive tip.
Service menu: Switch to the item „segment
test“ in the user menu, then depress key and
hold it for approx. 3 seconds.
Parameter menu: Switch to item
„accumulated volume„ in the user menu, then
depress key and hold it for approx. 5 seconds.
If there is no key operation within five minutes, the
display returns automatically to the normal
condition. The display items marked with an
asterisk (*) can be masked out by means of the
service software „MiniCom” using the optical
interface.
Fig. 5: operating key enclosed in accessory kit
M H 7400 INT PolluFlow, page 3
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