Landis+Gyr ULTRAHEAT 50 Series User manual

FOR INTERNAL USE ONLY!
Landis+Gyr GmbH Subject to change without prior notice UH606-101b Page 1of 38
Glossary Ultrasonic ® UH50
Last update: 2007-06-29
This glossary is part of the UH50 documentation and replaces the previous basic
documentation. It is intended to be used as online help and as a reference work. The content is
arranged in alphabetic order of key words and is intended for simple navigation with hyperlinks.
The index is at the end.
The key words are marked boldface type and surrounded by a border.
Note: This glossary is updated at regular intervals. Please check whether a new version is
available from time to time. Changes are not marked!
Important changes are marked in red color.
If you have any corrections or additions to make, please contact Landis+Gyr IMS QM.

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Automatic switch-on can be activated in the factory if the UH50 is not supplied with the
battery connected (e.g. if powered through a power supply unit). On subsequent start-up, the
date and time are not defined. In this case, the UH50 enters the input menu when the power
supply is connected.
Entry of the date
Entry of the time
Return to normal mode (manual)
The LCD button 1 can be used to call the menu lines one after the other. Entry of the date and
time is described under Parameter setting menu.
On (manual) return to normal mode, automatic switch-on is permanently deactivated, even if the
date or time has not been entered!
If no entry is made, the UH50 automatcical returns to normal mode after no more than 15 hours
*) and automatic switch-on remains active. The next time the power supply is connected or on
power recovery, the input menu will be displayed again.
Note: Automatic switch-on is only active if the calibration seal is set!
*) Attention: Currently there is a deviant behaviour.
“The automatical quitting of the menu after 15 hours does not work. The user must be informed
that it is essential to leave the menu manually. Otherwise the meter will not count any values.”
Note: In firmware 5.06 an higher this error is removed.
The UH50 can output the data part of the response telegram (according to EN62056-21 Mode
B) with an increased baudrate. The 5th character of the ID telegram (“/LUGxUH50”)
corresponds to the code for the increased baudrate.
Code Baudrate
C 2400 baud
D 4800 baud
E 9600 baud
F 19200 baud
After the ID telegram, the data part is transmitted with this increased baudrate.
The parameter for the high baudrate value is set by telegram in calibration mode (Eb), test
mode (Pb) or or normal mode (Nb).
It is also possible to parameterize whether the increased baudrate will apply to all data traffic or
just to the next telegram.
Calibration mode (“Eb”) can be called after opening the cover with the calibration button (=
short-circuiting of two pads for 3 s; operated with a service tool).
Calibration mode
As long as the calibration seal is not set, calibration mode can also be called by telegram via the
optical interface.
Calling calibration mode using the pads automatically resets a set calibration seal!
Return to normal mode is performed
−By telegram, e.g. via PappaWin
−By pressing a button (LCD button 1 or 2)
−Automatically no more than 15 hours later.
The calibration seal prevents subsequent changing of protected unit parameters that are
relevant for measurement. For example, calling calibration mode by telegram is blocked.
Setting the calibration seal terminates any simulation that may be in progress (flowrate or
temperature). Exception: “Permanent return simulation”.
After the calibration seal has been set and a volume of 10 liters has then flowed through, the
accumulated missing time is set to zero.
A
B
C

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An unset calibration seal is indicated by permanent display of three arrows. In this case, the
display function is inverted, i.e. in the case of a previous year’s value, previous month’s value,
or tariff value, the relevant symbol blinks.
Cold meter
For the cold meter or combined heat/cold meter, it is important to ensure that the black cover
on the measuring tube is pointing sideways or downward (because of condensation).
The measuring tube must always be installed in the return. The electronic unit must be
mounted separately from the flowrate measuring tube, for example, on the wall (split mounting).
Please ensure that no condensed water can run along the connected pipes into the electronic
unit (make a strap downwards).
Data logger (“archive”)
The data logger contains 4 archives. Per archive, 8 channels are possible.
The number of channels is stated in the order and is parameterized in the factory.
Archive
No. Archive type Timebase Storage depth Averaging time for maximum
1 Hourly archive 1 hour 45 days 1 hour *)
2 Daily archive 1 day 65 days 1 hour
3 Monthly archive 1 month 15 months 1 hour
4 Yearly archive 1 year 15 years 1 hour / 24 hours
*) For a shorter measuring period than 1 hour, the largest value from the maximum values
calculated within one hour applies.
The user can select the data to be recorded from a predefined value set and assign them to any
of the channels. The assignment is performed in service mode using PappaWin.
The data are recorded with their value and time stamp.
For internal information only:
When the date / time is set, maxima already calculated are reset and maximum calculation
begins afresh.
Adjustment of the date / time, can result in double or missing times.
The year in the time stamp is stored in 2 digits only, allowing only the range 2000...2099 to be
displayed.
Value set for data to be recorded
Meter readings at the end of the period for...
Quantity of heat
Volume
tariff register 1, tariff register 2, tariff register 3
Operating time *)
Fault duration *)
Pulse input 1, Pulse input 1
Flow rate measuring time
*) as parameterized: hours or days
Instantaneous values at the end of the period
for...
Power
Flowrate
Temperature difference
Flow temperature
Return temperature
Error display (instantaneous error codes)
Maximum for...
Power
Flowrate
Temperature difference
Flow temperature
Return temperature
The archive data are only output via the optical interface using PappaWin. They are transmitted
in a proprietary format (not AGFW format).
D

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Details concerning calibration law
The software contains a part “requiring official calibration” and a part “not requiring official
calibration”.
Approval of the UH50 under calibation law refers to the part “requiring official calibration”. This
part contains the sensing and processing of the consumption values and must not be altered
without an additional endorsement in the approval. The part “not requiring offical calibration”
contains functions that are not relevant to billing.
There are separate version numbers for the parts requiring and not requiring calibration. For the
part requiring calibration, there is a CRC checksum.
Firmware version of part requiring calibration (example)
Firmware version of part not requiring calibration (example)
CRC sum for part requiring calibration (example)
The values subject to calibration law (“calibrated values”) are marked by an additional symbol
(*) on the LCD.
In Germany, small heat meters (up to including DN25) may be installed according to Directive
2004/22/EC Annex MI-004 Nos. 1.1 to 1.4 on new installation only with directy immersed
sensors.
Error display
The error message F8 and the accumulated missing time can be reset in parameter setting
mode. This also deletes the flowrate measuring time!
The missing time is automatically reset after the calibration seal has been set (after a measured
flowrate of 10 liters).
F0 Air in the volume measuring part
- if measuring threshold < US signal < warning threshold, then:
“contamination message” with time stamp;
not treated as missing time (no F0 display on LCD)
- if US signal < measuring threshold, then:
“soft F0”; is evaluated as missing time;
output values for flowrate and power are not defined (no LCD values, no pulses,
“empty parentheses” in the telegram); no heat addition
- if “soft F0” is uninterrupted for longer than 8 hours, then:
“hard F0”, is evaluated as missing time;
the measurement timebase for the flowrate and temperature is increased to 100 s
F1
F2
Open-circuit flow sensor
Open-circuit return sensor
- is evaluated as missing time;
output values for flow/return temperature, temperature difference and power are not
defined (no LCD values, no pulses, “empty parentheses” in the telegram); no heat
addition
F3 Temperature electronics defective;
- Response as for F1/F2
F4 Supply voltage too low
- Response as for “hard F0”
F5
F6
Short-circuit flow sensor
Short-circuit return sensor
- Response as for F1/F2
F7 EEPROM defective
- No display while the error can be corrected via checksum
- Non-recoverable error in the part requiring calibration: no more measuring
- Recoverable error in the part requiring calibration: no F7 display on LCD, but error
output via data telegram
- Errors in the part not requiring calibration: data affected are not plausible and are
therefore not output
E

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F8 F1, F2, F3, F5 or F6 for 8 hours (unless F0, F4, F7 or F9 has been detected)
- Response as for F1/F2
F9 Internal communication between ASIC and µC defective
- Response as for “hard F0”
The occurrence of an error is recorded in a logbook (“occurrence” and “back to normal”). This
does not apply to F4 and F7, because in these cases the EEPROM is blocked for write access.
A negative flow or negative temperature difference is displayed correctly (is not treated as
missing time).
Within limits, software errors can be rectified by means of an internal bugfix mechanism.
EU directive conformity declaration
The following text has been included in the Operating Instructions (not the Configuration
Instructions or the Installation and Service Instructions):
Landis+Gyr hereby declares that this
product complies with the essential
requirements of the following directives:
−2004/22/EC measuring instruments
directive
−89/336/EEC electromagnetic
compatibility of electrical and electronic
devices
−73/23/EEC low-voltage-directive
EC type examination certificate
DE-06-MI004-PTB018
EC design-examination certificate
DE-07-MI004-PTB010
Factory-fitted sensors
If sensors are fitted in the factory, the cable must not be disconnected, shortened, or extended.
“Fast pulses” for the pulse module are parameterized using the PappaWin software.
When fitting with modules, please pay attention to the permissible combinations.
By default, standard pulses are output through the pulse module.
100%
Gradient
n-min
n-max
F

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Parameter setting for “fast pulses”
Channel 1 Channel 2
CV (count volume)
CE
(count energy) - (no function)
CV (count volume)
CV
(count volume) - (no function)
CV (count volume)
CE / CV *)
(count energy / count volume) - (no function)
*) automatic output of the higher pulse rate
Note: For battery operation, a D cell is required!
For applications, such actuating controllers or as flowrate transmitters, higher pulse rates are
required. The parameters required for this (pulse significance, pulse duration), can be
configured with the
PappaWin software.
The maximum pulse frequency is 33 Hz.
The following can be set:
•Pulse type: “linear” or “scaled” pulses *)
•Pulse output: energy or volume
•Pulse duration, if only 1 pulse module is fitted:
from 2 ms to 100 ms in steps of 1 ms;
Pulse duration, if 2 pulse modules are fitted:
von 5 ms to 100 ms in steps of 5 ms
The pulses can be received and evaluated with a suitable device. The settings must be made in
accordance with the information on the data sheet of the controller.
*) Linear pulses are output pro-
portionally to the measured value. In the
case of scaled pulses, the number of
pulses at the upper and lower end of the
range can be defined. This enables the
pulse receiving device to detect, for
example, a connection error.
Linear pulses
Scaled pulses (example)
The flowrate measuring time (=“Operating time with flowrate“) (--> Timer) is acquired with a
separate counter. The time acquired refers to the time over which a flowrate > response
threshold was detected based on the measured values.
General information
The UH50 meter senses the flow velocity of the heating (or cooling) water with non-wearing
ultrasound technology and measures the temperatures in the flow and return using Pt resistors.
The k factor of the heating water is stored in µC as an algorithm. The engineering unit "quantity
of thermal energy" is calculated from the values flow velocity, temperature (difference) and k
factor.
The UH50 is used as a:
−Heat meter
−Cold meter
−Combined heat/cold meter
−Flow meter
Incorrect installation (mounting error) of the heat meter on site is indicated a relevant error
display. For this purpose a flow is needed!
Incorrect flow direction
Incorrect sensor installation or connection
If both causes of error apply, the incorrect direction of flow has priority. Then the display for the
wrong sensor installation/connection will only appear when the volume measuring unit is turned
round.
G
I

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Note: These messages can also occur in the event of a system stoppage without incorrect
installation.
Installation
Choose a mounting location with enough clearance, based on the dimension drawings.
Mount the volume measuring unit horizontally or vertically between two shut-off valves in
accordance with the arrow for the direction of flow.
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. 10x DN) to allow the different
water temperatures to mix well.
The sensors can be mounted in ball valves or in pockets or directly. The ends of the sensors
must be inserted at least up to the center of the pipe cross-section.
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 (at 80°C).
Example of mounting with a ball valve
(recommended up to DN25)
Ball valve
Example of mounting with pockets
(recommended above DN25)
Welded sleeve with pocket
Interfaces of the electronic unit
The UH50 heat meters are equipped with an optical interface per EN 61107 as standard.
Moreover, up to two of the following communication modules can be used for remote reading:
•Pulses (quantity of heat / volume / unit status / tariff register 1, tariff register 2),
isolated, bounce-free
•Passive 20 mA current loop (CL) per EN 61107
•M-bus per EN 1434-3, fixed and extended, variable protocol (also for coupling with
a suitable heating controller)
•Analog module
•Radio module
•Multi module (external)
These modules are have no effect on consumption metering and can therefore also be replaced
at any time without violating the adhesive label.

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The LC display consists of 4 alphanumeric digits (+ various special characters), 7 numeric
digits (with decimal points), 3 arrow symbols and a star.
LC display
The arrow symbols identify output of a stored previous year’s, previous month’s, or tariff value.
A calibrated value (quantity of heat or volume) is marked by the star symbol.
An unset calibration seal is indicated by permanent display of three arrows. In this case, its
display function is inverted, i.e. the relevant segment blinks when a previous year’s, previous
month’s, or tariff value is displayed.
The number of digits after the decimal point
of a value (e.g. the quantity of heat) depends
on the chosen measuring path and the
chosen dimension.
The digits after the decimal point are always
shown with a border.
For values requiring calibration, display of the
digits after the decimal point can be para-
meterized (blinking, static or suppressed).
kWh
MWh *)
MJ
GJ *)
m³
*) Places after decimal point "blinking", "static" or "suppressed"
10 15 25 402,5 3,5 60
Nom. flowrate in m³/h
0,01 GJ
m³/h
0,1 GJ
0,01 MWh
0,001 GJ
0,001 MWh
1 kWh
1 MJ
0,001 m³/h 0,01 m³/h
0,01 m³ 0,1 m³
0,6
The displays are distributed among various loops (“LOOP”). The displays are called sequentially
using the operating elements (LCD buttons) on the front.
Up to 8 loops can be parameterized using PappaWin.
Display 01
Display 02
Display 03
Display 04
...
...
Display 0y
Display 11
Display 12
Display 13
Display 14
...
...
Display 1y
Display x1
Display x2
Display x3
Display x4
...
...
Display xy
LOOP 0 LOOP 1 LOOP x
.....
d
c
e
User loop
11.10.2006 / UH50_en.vsd / Display
"Button lock"
parameterizable
"Service loop lock"
parameterizable
Service loops
LCD button 2 is used to move line by line through the current loop (c). After the last line, the
first line is displayed again. LCD button 1 (“Loop”) calls the first line of the next loop up (d).
After the last loop, the first loop is shown again (e).
The user loop (LOOP 0) contains the consumption values. The service loops (LOOP 1...LOOP
x) may contain further values.
After 30 seconds of inactivity – within the user loop - the display returns to the default display.
The default display can be parameterized and is optionally the error display or any display line
of the basic loop (LOOP 0) (“Standard display”).
Return to the default display from the service loop occurs automatically after 30 minutes of
inactivity.
Any display line can be called directly by telegram via the assigned (internal) code number.
“Calibrated value”
“Prev. years’s value” “Prev. month’s value” “Tariff value”
L

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Further parameterization options:
1. “Button lock”
Advancing the display using the LCD buttons can be blocked or enabled by telegram.
When locked, operating the LCD buttons has not effect.
2. “Service loop lock”
Calling the service loops (LOOP 1...LOOP x) can be blocked or enabled by telegram. If
the service loop is locked, operating LCD button 1 has no effect.
3. “Display lock” (also known as start-up lock or NEOVAC lock)
The unit display can be locked or enabled completely by telegram. If the display is
locked, the figure “8” and all decimal points blink.
Note: In this state, it is no longer possible to see whether the calibration seal is set!
Display locked (blinking)
4. “Power saving mode”
Power saving mode can be locked or enabled (default) by telegram.
If power saving mode is enabled – and the calibration seal is set – switchover to power
saving mode is performed after 15 minutes if no button is pressed (and no data traffic
takes place).
If power saving mode is locked, the LCD display is permanently active.
The locking functions 1 to 4 above can be combined.
Behavior Button lock Service lock Display lock Power
saving
mode
Full LCD access no no no no
Full LCD access, but LCD
inactive after 15 minutes
no no no yes
Only “display locked” no no yes no
no no yes yes
Only user loop possible no yes no no
no yes no yes
no yes yes no
no yes yes yes
Only PRIO display yes no no no
yes no no yes
yes no yes no
yes no yes yes
yes yes no no
yes yes no yes
yes yes yes no
yes yes yes yes
Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
LCD: Complete structure
Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
not activated
enabled
enabled
enabled
LCD: Standard configuration

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Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
not activated
enabled
enabled
locked
LCD: Button function locked
Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
not activated
enabled
locked
enabled
LCD: Access to service loops locked
Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
not activated
locked
enabled
enabled
LCD: Display locked completely
Error as
priority
Any display
PRIO
display
EB / Pb
inactive "Display
locked"
LOOP n
Any display
Power saving mode:
Display:
Service loop:
LCD button:
Button or
telegram
30 min
LCD button 1
LCD button 1
LCD button 1
30s + "Error no longer"
30s + "Error new"
LCD
button 2
LCD
button 2
30s
30s
5s
0,5s
Display lock
Error
No error
LCD
button 2 LCD
button 2
LCD
button
2
15min
LCD
button 1
n+1
activated
enabled
enabled
enabled
LCD: Power saving mode activated
Display loops (only examples, as described in the Operating Instructions, the Configuration
Instructions, and the Installation and Service Instructions)
User loop (“LOOP 0”)
Head of the loop
Accumulated quantity of heat with tariff status (3)
Tariff register 1 (optional) (32)
Accumulated volume (4)
Segment test (7)
Error message with error code number (1)
Service loop 1 (“LOOP 1”)
Head of the loop
Current flowrate (8)
Current heat power (10)
Current flow/return temperature (9)
Operating time (6)
in hours or days
Operating time with flowrate (95)
in hours or days
Missing time (13)
in hours or days
Property number, 8-digit (27)
Date (23)
Yearly set day (TT.MM) (14)
Quantity of heat previous year on set day (15)
Volume previous year on set day (16)
Firmware version (30)