Allmess Itron UltraMaXX RF24 Instrukcja ogólna - Strona 6
Przeglądaj online lub pobierz pdf Instrukcja ogólna dla Przyrządy pomiarowe Allmess Itron UltraMaXX RF24. Allmess Itron UltraMaXX RF24 11 stron. Measuring capsule heat meter screw-in heat meter
Drukuj stronęCONNECTION DIAGRAM
COMMISSIONING AND SEALING
COMMISSIONING (FIG. 1)
Open the ball valves / shut-off valves. Switch on the circulation pump. Check for
leaks.
PLAUSIBILITY CHECK (FIG. 1)
Activate the unit display by pressing the push-button. Perform the LCD test.
Check the values for flow rate, supply temperature and return temperature for
plausibility, check the error display (see operating instructions).
Attention: To document the plausibility check, please fill in the installation
handover report (removable page in inner section).
SEALING MK (FIG. 2)
Secure the head ring with a red plug-in seal (barb to the centre of the housing)
and the supply and return temperature sensors with a sealing sleeve, to prevent
unauthorised deinstallation. Alternatively, the temperature sensors can be
secured with the supplied wire and metal snap-on seal. If necessary in the event
of incorrect installation, break open the seal with a screwdriver, and secure again
with a metal snap-on seal after the installation has been corrected.
SEALING V (FIG. 3)
Secure the screw-in connection of the meter and the supply and return
temperature sensor with wire and metal snap-on seal, to prevent unauthorised
deinstallation.
UNIT INSTALLATION (FIG. 4)
Place the unit on the flow rate sensor/wall mounting bracket and press down until
it locks into place.
Length of connecting cable for flow rate sensor/unit: 0.5 m
Fig. 4
Cable ties
Wall mounting bracket on a pipe
Unit on the wall mounting
bracket on the wall
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Fig. 1
Installation
Fig. 2
Deinstallation
Fig. 3
Seal
Unit on wall mounting
bracket with magnet in
cabinet
CONNECTION DIAGRAM
Options
Small calculator
Large calculator
Remote display of
M-BUS
energy / volume
M-Bus 4 water meter
Large calculator:
Remove the user seal on the cover screw. Expose the screw terminals by opening the cover (screw). Connect the cable
according to the diagram and secure strain-free. Break the corresponding cable holes out of the cover. Screw on the cover
and secure the screw with a new user seal.
SPECIFICATIONS
Input specification for water meter
1 / 2.5 / 10 / 25 / 100 or 250 l / pulse
(programmable via push-button,
Pulse value
same pulse value for all connected
water meters)
Scanning voltage
typically 3 V
Contact closed R < 500 Ω /
Pulse detection
contact open R > 1 MΩ
Pulse length/pause
> 3 s each
Cable length
max. 10 m
Specification of the M-Bus interface:
Standard reference
EN 13757-3
Baud rate /
300 baud / 2.400 baud / variable
Protocol
Protocol, low-byte-first
Manufacturer number, energy,
volume, power, flow rate, tempe-
ratures (supply, return, difference),
Default data
operating time, date and time,
optional volume water meter 1...4,
firmware version, software version
Energy, volume, optional maximum
18 key date
values of power, flow rate and sup-
data sets
ply temperature with time stamp,
volume of water meter 1...4
CONNECTION DIAGRAM
M-BUS
with power supply
2 water meters
Specification for pulse output for energy and
volume remote display*
Scanning voltage
max. 30 V, min. 2,5 V
Max. permissible
20 mA
Max. internal
100 Ω (during remote display pulse)
resistance Ron
Pulse width
120 ms
Energy: 1 KWh (or 10 MJ),
Pulse value
Volume: 10 l
Pulse
Pull-Down circuit
characteristics
*) In the factory option "Combi" for use in combined heat and
cold systems, the pulse output labelled "V" is used as a cold
energy pulse (1 kWh).
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