Ista ultego III perfect User manual

ultego III perfect –
highest precision and reliability
Reliable Measurement
Longevity, measuring stability and a high
dynamic range distinguish the ultego III
perfect. Even after operating for years in the
district heating water environment with low
conductivity the ultego III perfect is
measuring the volume precisely and reliably.
Due to the patented DuraSurface, we are
setting new standards in measurement
stability. This future-oriented innovation
ensures measuring accuracy and
maintenance-free operation for many years.

Technical data
Nominal flow Qn/Qpm3/h 3.5 6 10 15 25 40 60
Meteorological Class 1:100 1:100 1:100 1:100 1:100 1:100 1:100
Maximum flow rate Qsm3/h 7.0 12 20 30 50 80 120
Minimum flow rate Qil/h 35 60 100 150 250 400 600
Response limit l/h 14 24 40 60 100 160 240
Pressure loss ∆p at Qp
Thread mbar 65 150 100 – – – –
Flange !"#$ 65 150 165 100 105 160 115
Pressure loss ∆p = 1 bar
Thread Kvm3/h 14 15 32 – – – –
Flange Kvm3/h 14 15 32 48 77 100 177
Installation position Variable
Temperature range limit values 5...130 °C
Maximum temperature tmax 150 °C for 2000h
Nominal pressure PN 1.6 MPa (PN16) 2.5 MPa (PN25) 1.6 MPa (PN16)
2.5 MPa (PN25) 2.5 MPa (PN25) 2.5 MPa (PN25)
Permissible metering error
acc. EN 1434 (Class 2)
2 + 0.02 qp/q %
max. 5%

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Safety information
JDo not pick up by the electronic unit
JBe careful of sharp edges (thread, flange, measuring tube)
JInstallation and removal must be performed by qualified personnel only
JMounting and unmounting are only permitted when the system is not under pressure
JAfter installation, a tightness test must be conducted with cold pressure
JOnly ever use under service conditions, otherwise dangers can arise and the warranty may be voided
JBreaking the calibration seal voids the warranty
JThe 110 V / 230 V versions must only be connected by an electrician
JThe lithium batteries must be properly returned
JLightning protection cannot be ensured; this must be provided by the building wiring
JOnly one compartment for the power supply must be equipped – do not remove the red locking hatch
General information
The electronic unit is plugged onto an adapter plate and can be separated by pushing the volume measuring unit upward.
The packaging should be kept so that the heat meter can be shipped in its original packing after the calibation period has
elapsed.
If the heat meter was not supplied with a battery connected, the current date and time must be entered during start-up (see
“Parameter setting”).
The 110 V / 230 V power supply units comply with safety class II, so the line voltage does not need to be disconnected when
changing the unit.
All cables must be laid at a minimum distance of 300 mm from power cables or radio-frequency cables.
By overpressure, cavitation must be avoided in the entire measuring range, i.e. at least 1 bar at qp and approx. 3 bar at qs
(applies to approx. 80°C).
The heat meter left the factory in perfect safe condition. Calibration, maintenance, component replacement, and repairs must
only be performed by trained personnel who are familiar with the hazards involved. The manufacturer will provide further
technical support on request. Heat meter safety marks that are relevant for calibration must not be damaged or removed!
Otherwise the warranty and calibration validity of the device will expire.
Installation
Choose the mounting location (return or flow) in accordance with the labeling on the heat meter. Study the table for the
dimensions and check that there is enough clearance.
No inlet or outlet sections are necessary. However, if the heat meter is installed in the shared return of two heating systems,
e.g. heating and hot water, the mounting location must be a sufficient distance from the T element that forms the junction
(min. 10°x°DN) to allow the different water temperatures to mix well.
Before the heat meter is installed, the system must be rinsed thoroughly.
As shown in the examples on Page 2, mount the volume measuring unit horizontally or vertically between two shut-off valves
in accordance with the arrow for the direction of flow. The sensors must be mounted in the same heating circuit as the volume
measuring unit. For installation as a cold meter, see the following notes.
The sensor can be mounted in ball valves, in pockets or direct immersed. The end of the sensors must extend in any case as
far as the center of the pipe cross-section. Temperature sensors and screw joints must be sealed for protection from tam-
pering.
Small heat meters (qp 0.6 - 2.5 m³/h)
Overall length 110 mm
(thread)
Overall length 190 mm (thread) Overall length 190 mm (flan-
ge)
Overall length 130 mm
(thread)

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Large heat meters with threaded joint
Large heat meters with flange joint
Examples of installation
Electronic unit
The ambient temperature of the electronic unit must not exceed 55°C. Direct sunlight must
be avoided.
For heating water temperatures between 10°C and 90°C, the electronic unit can remain on
the volume measuring unit or be mounted on the wall (split mounting). On the wall or on the
volume measuring unit, the adapter plate can be oriented to make it easy to read the display.
To remove the electronic unit, push the housing upward and remove. The adapter plate for
wall mounting can now be unscrewed or the electronic unit simply rotated and pushed back
into the required position until it latches.
For heating water temperatures between 10°C and 90°C, the electronic unit must be fixed on
the wall (split mounting). For this purpose, remove the electronic unit from the adapter plate,
unscrew the adapter plate from the volume measuring unit, and screw to the wall with plugs.
Push the electronic unit on again.
A heat meter with a removable control cable may be separated during the installation. When
installation is done be sure that only paired parts (volume part, calculator) are connected
together. The control cable must not be extended!
qp m³/h PN bar a b c
3.5 16 260 51 G 1 1/4 B
3.5 25 260 51 G 1 1/4 B
6 16 260 51 G 1 1/4 B
10 16 300 48 G 2 B
alternative moun-
ting option
qp
m³/h
PN
bar
DN a b Øc Ød Øe No of
holes
f g
3.5 25 25 260 51 115 85 14 4 68 18
6 25 25 260 51 115 85 14 4 68 18
10 25 40 300 48 150 110 18 4 88 18
15 25 50 270 46 165 125 18 4 102 20
25 25 65 300 52 185 145 18 8 122 22
40 25 80 300 56 200 160 18 8 138 24
60 16 100 360 68 235 180 18 8 158 24
60 25 100 360 68 235 190 22 8 158 24
Example of mounting with a ball valve
(recommended up to DN25)
Example of mounting with pockets
(recommended for > DN25)
Ball valve Welded sleeve with pocket
Adapterplaat
(bovenaanzicht)
Adapterplaat
(doorsnede)

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Mounting as a cold meter
When mounting a cold meter or combined heat/cold meter, make sure the black cover on the measuring tube is oriented to
the side and downward (because of water condensation).
The electronic unit must be separated from the flowrate measuring tube and, for example, mounted on the wall (split moun-
ting). Make sure that condensed water cannot run along the connected pipes into the electronic unit (building a loop down-
wards).
Power supply
The heat meter can be powered either with a battery or via power supply modules. The 110 V / 230 V power supply modules
are encapsulated and comply with safety class II. The modules can be retrofitted or upgraded at any time.
In the standard version, a battery is inserted in the factory. This must not be opened. It must not come into contact with water
or be exposed to temperatures exceeding 80°C. Used batteries must be disposed of at suitable waste disposal facilities.
In a special version, a power supply module can be installed. In the 110 V AC and 230 V AC versions, a cable is brought out
in the factory that must be connected to the line voltage accordingly. The 24 V AC/DC version has terminals instead of a
cable.
The 110 V or 230 V power supply unit must be fuse-protected with 6 A near to the heat meter and protected from tampering.
Insert the battery
Press the four side tabs of the housing cover inward and remove the cover. Then turn the label plate counterclockwise until
you feel it has gone as far as it will go.
Swing open the red locking hatch to expose the relevant battery compartment (left compartment for 2x “AA” or “C”, right com-
partment for “D”).
Insert the battery into the relevant compartment of the electronic unit with the correct polarity as marked.
Turn the label plate back clockwise into its original position.
Schallkopfabdeckung
cover of flow sensors
Allowed
position of
the cold
meter
Locking hatchPlug connector
NOTE:
“AA” and “C” size batteries are snapped into a holder.
In case of a meter's return via airfright the battery ("C" and "D" cell) has to be generally dismounted
and forwarded separately from the meter.

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Mounting the power supply module
Instead of the battery, a power supply module (110 V / 230 V with connected cable, 24 V with terminals) can also be installed.
This is done by moving the red locking hatch to the left to open the right-hand compartment for the power supply module.
Remove the right-hand outside rubber sleeve upward, pull out the plugs and thread the connecting cable (line voltage) of the
module through the sleeve. Insert the module in the upper right-hand corner of the electronic unit and re-insert the sleeve with
the cable from above. Connect the conductors as labeled. Plug the other connecting cable (low voltage) onto the plug con-
nector on the circuit board..
When replacing a unit after the calibration period has elapsed, swing out the power supply module with the cable and sleeve,
mount the new heat meter, and re-insert the module. Because it complies with safety class II, the line power supply does not
have to be disconnected.
Interfaces of the electronic unit
The UH50 heat meters are equipped with an optical interface per EN 62056-21:2002 as standard. Moreover, up to two of the
following communication modules can be used for remote reading:
JPulse module (pulses for quantity of heat / volume / unit status / tariff register 1 / tariff register 2; isolated, bounce-free)
JM-bus module per EN 1434-3, fixed and extended, variable protocol (also for coupling with a suitagle heating controller)
JAnalog module
These modules are have no effect on consumption metering and can therefore also be replaced at any time without violating
the adhesive label.
Communication modules
In the lower right-hand area, up to two communcation modules can be installed in the factory.
At a later installation the necessary ESD protection measures has to be considered.
For further technical details and data on the module, see the technical documentation.
Terminals
2-pole and 4-pole terminals are used for connecting external cables to the modules.
JStrip-back length 5 mm
JConnection capacity
Jrigid or flexible, 0.2 - 2.5 mm²
Jflexible with end ferrules, 0.25 - 1.5 mm²
Jconductor sizes 26 - 14 AWG
JMultiple-conductor connection (2 conductors of same cross-section)
Jrigid or flexible, 0.2 – 0.75 mm²
Jflexible with end ferrules without plastic sleeve, 0.25 – 0.34 mm²
Jflexible with TWIN ferrules with plastic sleeve, 0.5 – 0.75 mm²
JRecommended screwdriver:
J0.6 x 3.5 mm
JTightening torque: 0.4 Nm
NOTE:
JFor the 24 V AC/DC version, cable with a diameter greater than 5.0...6.0 mm should not be used!
JThe 110 V / 230 V versions must only be connected by an electrician!
Adhesive label
Module 1
Module 2
Sleeves

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Permissible combinations of modules
A pulse module with “fast” pulses must always be inserted as module 2.
The radio module must also always be inserted as module 2.
Further restrictions are shown in the following table.
*) only 1 module with fast pulses is possible, only permissible on slot 2; min. pulse duration = 2 ms, if pulse module 1 not fit-
ted.
1. Pulse length of the fast pulses min. 5 ms
2. The first and second channel can be parameterized individually
3. The secondary address for both modules can only be changed via module No. 1
Installing a communication module
The communication modules are connected via a 6-way reaction-free connector so that installation or replacement is pos-
sible at any time.
Put the communication module in the correct position, carefully insert it into the two guide slots, and push it in.
For connection with the external cable, strip the sleeve to ensure the correct cross-section of the connecting cable. Feed the
cable through the sleeve from outside, strip it back and connect it. A cable shield must not be connected to the heat meter.
Unsure you use the correct slot for the modules and comply with the permissible combinations.
Factory-installed sensors
NOTE:
Subsequent mounting of a further pulse module in module slot 1 can result in changed output values
for module 2!
Slot for module #2 is equipped with...
Pulse mdodule M-bus module Analog module
“standard“ “fast” *)
Slot for module #1 can
be equipped with ...
Pulse mdodule
“standard“ yes (2) yes (1) yes (3) yes
“fast” *) no no no no
M-bus module yes yes yes (3) yes
Analog module yes yes yes (3) yes
NOTE:
Do not disconnect, shorten, or extend the cables of factory-installed sensors.

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Parameter setting
Setting the date / time
Units with a power supply unit or new battery connected in situ may start directly in the setting menu for the date and time..
Press LCD button 1 repeatedly until the required value is shown. Then press LCD button 2. Change the value for the date or
time as described under Performing parameter setting.
Calling the parameter setting function
Press the service button for about 3 s. The LCD shows the display .
In this state, you can parameterize the tariffs and fast pulses using the PappaWin software.
LCD button 1 advances the display.
Press LCD button 1 repeatedly until “PArA” is shown. Then press LCD button 2.
The following parameter settings are possible:
Cover tabs Cover tabs
Adhesive label
LCD display
LCD button 2
LCD button 1
NOTE:
The housing cover has to be removed temporarily in order to operate the service button.
Service button
Enter the date
Enter the time
Return to normal mode (manual)
CAUTION:
For fast pulses in battery operation, a D cell is required.
Call test mode
Call parameter setting mode
Return to normal mode (manual)

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
*) It is up to the user to ensure that only meaningful values are entered. No plausibility check is made and “incorrect” values
can be applied (month > 12 etc.)
The required size is selected with the LCD button 1 and activated with the LCD button 2.
Performing parameter setting
LCD button 2 is used to change the blinking digit step by step or reset error F8 or the maxima. LCD button 1 applies the value
set in the blinking digit. The next digit to the right of this then blinks, can be set again with the LCD button 2 and can be
applied with LCD button 1. As the final acknowledgment of a display line, a star symbol is briefly displayed.
If incorrect entries are made, parameter setting be performed again.
Reset error message F8
(only displayed if F8 is pending)
Reset the maxima
Reset the missing time and the flowrate measuring time
Enter the yearly set day (day and month) *)
Enter the monthly set day (day) *)
Enter the date (day, month, year) *)
Enter the time (hour, minute, second) *)
Enter the property number, 8-digit (also M-bus secondary address)
Enter the M-bus primary address for module 1 (0..255) *)
Enter the M-bus primary address for module 2 (0..255) *)
Select the first module function for module 1 (CE or C2)
Select the second module function for module 1 (CV or CT or RI)
Select the first module function for module 2 (CE or C2)
Select the second module function for module 2 (CV or CT or RI)
Select the maxima measuring period: 7.5-15-30-60 min / 3 6 12 24 h
Return to normal mode
NOTE:
The functions for modules 1 and 2 are also offered if no or any other module is plugged.
In this way, the heat meter can be parameterized before the modules are fitted.
NOTE:
Parameter setting can be exited by pressing the service button again (“escape function”). In this case,
the last valid value is displayed unchanged.

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Completing parameter setting
Parameter setting mode is exited:
Jby pressing LCD button 2, when the display shows
JAutomatically after 15 hours
Start-up
Replace the housing cover and press it in gently until you hear all the tabs latch. Open the shut-off valves. Check the heating
system for tightness and vent it carefully.
No more than 100 s later, message F0 will disappear. After that, check that the displays for flowrate and temperaures are
plausible. Vent the system until the flowrate display is stable. Adjust the system with the flowrate display (updated in the
flowrate timebase).
Seal the sensors. Attach user seals to the electronic unit and the sensors.
Read and note down the meter readings for quantity of heat, volume, operating time, and missing time.
We recommend resetting the maxima and the missing time (see parameter setting).
Error messages on incorrect mounting:
Displays
The places after the decimal point of displayed values are indicated by a surrounding border.
Calibrated values can be recognized by the star symbol shown in addition to the value.
The displays of of the heat meter are arranged on several levels (LOOPs). LCD button 2 advances the display of the user
loop (LOOP 0) cyclically.
User loop (“LOOP 0“)
LCD button 1 is used to switch the display from the user loop to the selection of service loops (LOOP 1..n).
Service loops (selection)
LCD button 1 advances the display to the next loop. After the last loop, the user loop (LOOP 0) appears again.
LCD button 2 displays the content of the selected service loop.
Within a loop, the LCD button 2 is used to advance to the next line of the display. After the last line of the display, the first dis-
play line appears again.
Heat meter was mounted the wrong way round, against the intended
direction flow
Temperature sensors were swapped round during mounting or con-
nection
NOTE:
During a system stoppage, these messages may appear although mounting was correct.
NOTE:
Depending on how the unit is parameterized, the number of items displayed and the data shown may
differ from this description. Certain button functions may also be disabled.
Head of the loop
Accumulated quantity of heat with tariff status
Tariff register 1 (optional)
Accumulated volume
Segment test
Error message with error code number
Service loop 1
Service loop 2
... ...
LOOP n Service loop n

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Service loop 1 (“LOOP 1”)
Service loop 2 (“LOOP 2”)
In service loop 2, the maxima are displayed. LCD button 2 calls the displays one after the other.
Head of the loop
Current flowrate
Current heat power
Current flow/return temperature
Operating time
Operating time with flowrate
Missing time
Property number, 8-digit
Date
Yearly set day (DD.MM)
Quantity of heat previous year on set day
Volume for previous year on set day
Firmware version
Head of the loop
Max. flowrate,
at 2s intervals with date stamp
Max. power,
at 2s intervals with date stamp
Max. temperatures,
at 2s intervals with date stamp
for flow and return maximum
Measuring period for maximum calculation

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Service loop 3 (“LOOP 3”)
Service loop 3 shows the monthly values. LCD button 1 is used to select a month out of the 18 previous months. The data for
that month are then opened with LCD button 2. Each further press of LCD button 2 shows the next value for the selected
month.
After the last display, the previously selected set day is displayed again. Pressing LCD button 1 selects the next set day.
Head of the loop
Set day for December 2005
Set day for November 2005
... ...
Set day for July 2004
using LCD button 2: L
Quantity of heat on the set day
Tariff register 1 on the set day
Volume on the set day
Max. flowrate on the set day,
at 2s intervals with date stamp
Max. heat power on the set day,
at 2s intervals with date stamp
Max. temperatures on the set day,
at 2s intervals with date stamp
for flow and return maximum
Missing time count on the set day
NOTE:
If you want to drop out and go directly to the next loop, choose a monthly value by pressing LCD but-
ton 2 and then press LCD button 1.

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Service loop 4 (“LOOP 4”)
Service loop 4 shows the unit parameters. LCD button 2 calls the displays one after the other.
Previous year’s values
The electronic unit stores the current meter readings for quantity of heat, volume, the tariff register, missing time, and flowrate
measuring time as well as the service life maxima for flowrate, power, temperature difference, flow temperature, and return
temperature with their date stamps on a yearly set day.
Monthly values
The electronic unit stores the meter readings for quantity of heat, volume, the tariff register, missing time, and flowrate
measuring time as well as the monthly maxima for flowrate, power, temperature difference, flow temperature and return tem-
perature with their date stamp for 18 months on the set day of each month.
The monthly values can also be read out via the optical and the 20 mA interface.
Error messages
The heat meter constantly performs self-diagnostics and can display various error messages.
Message F8 has to be reset in parameter setting mode (manually, PappaWin). All other error messages are cleared automati-
cally once the error has been corrected.
Head of the loop
Current tariff,
at 2s intervals with threshold value 1
Measuring interval for flowrate
Measuring interval for temperature
Module 1: M-bus module
M-bus primary address 1
M-bus secondary address 8-digit
Module 2: pulse module; chan. 1 = heat quantity
Channel 2 = volume, at 2s intervals
Significance for heat quantity pulses *)
Significance for volume pulses *)
Pulse duration in ms *)
*) for “fast pulses”
NOTE:
The standard time used is Central European Time (CET). If daylight-saving time is activated, storage
will be performed accordingly.
Errorcode Error / action to be taken
F0 No flow;
Air in measuring unit / pipe, vent pipe
F1 Interruption of flow sensor
F2 Interruption of return sensor
F3 Electronic for temperature evaluation defective
F4 Battery empty; replace!
F5 Short-circuit flow sensor
F6 Short-circuit return sensor
F7 Fault in the internal memory
F8 F1, F2, F3, F5 or F6 pending for longer than 8 hours.
No more measurements are performed.
F9 Error in the electronics

ultego® III perfect
G.83.0101 ultego® III perfect 6.1 - 230608
ista International GmbH – Grugaplatz 2 – D-45131 Essen
Functional details
If the response thresholds are exceeded and the flowrate and temperature difference are positive, the quantity of thermal
energy and the volume are summated. In the segment test, all segments of the display are switched on for test purposes.
On the yearly set day, the meter readings for quantity of heat and volume, the values for the service life maxima and the
flowrate and missing times are placed in the previous year memory.
The flowrate, heat power, and temperature difference are acquired with the correct sign. If the response threshold is not rea-
ched, the value is preceded by a u. The current temperatures are shown together on one line of the display as integers in °C.
To calculate the maximum, the heat power and flowrate are averaged over a measuring period of, for example, 60 min. The
maximum values from the average calculation are preceded by Ma on the LC display.
The 8-digit property number (also the secondary address in M-bus operation), can be set in parameter setting mode. The unit
number is assigned by the manufacturer.
The operating time is counted from the first time the power supply is connected. Missing times are summated, if an error is
pending that prevents the heat meter from measuring. The date is incremented daily.
The type of installed modules is displayed. If an M-but module is installed, the primary and secondary address will be dis-
played on the following lines.
The number for the firmware version is assigned by the manufacturer.
Notes
JRegulations on the use of heat meters must be observed, see EN 1434, Part 6!
JIn particular, cavitation in the system must be avoided.
JHeat meters up to DN25 may only be installed with directly immersed sensors according to German calibration law!
JInstall the unit in such a way that no water can enter the electronic unit during operation.
JAll information given on the data sheet of the heat meter must be observed.
JUser seals may only be removed by authorized persons for service purposes and must be replaced afterwards.
JNo later than 30 seconds after installation, the heat meter detects the plugged modules automatically and is ready for
communication or pulse output.
JThe type of modules plugged can be displayed in the service loop depending on how the display is parameterized.
JFor fast pulses, the parameters must be set accordingly with the PappaWin software.
JUp-to-date versions of all instructions can be found in the Internet at www.ista.com
EC Declaration of conformity
Landis+Gyr herewith declares that this product complies with the relevant requirements of the following directives:
J2004/22/EC measuring instruments directive *)
J89/336/EEC electromagnetic compatibility
J73/23/EEC low-voltage directive
J*) for Cold Meters applies PTB TR K 7.2
EU typegodkendelsescertifikat
DE-06-MI004-PTB018
EU-design-godkendelsescertifikat
DE-06-MI004-PTB010