UH50 Ultrasonic Heat Meter
Installation and Service Instructions
UH 206-101c
Page 6 / 8
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.
Caution: For fast pulses in battery operation, a D cell
is required.
LCD button 1 advances the display.
Call test mode
Call parameter setting mode
Return to normal mode (manual)
Press LCD button
1 repeatedly until “PArA” is
shown. Then press LCD button 2.
The following parameter settings are possible:
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
*) 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.)
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.
The required size is selected with the LCD button 1
and activated with the LCD button 2.
Note: Parameter setting can be exited by pressing
the service button again (“escape function”). In this
case, the last valid value is displayed unchanged.
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.
Completing parameter setting
Parameter setting mode is exited:
•
by pressing LCD button 2, when the display
shows
•
Automatically 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:
Heat meter was mounted the wrong way
round, against the intended direction flow
Temperature sensors were swapped round
during mounting or connection
Note: During a system stoppage, these messages
may appear although mounting was correct.
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.
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.
User loop (“LOOP 0“)
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
LCD button 1 is used to switch the display from the
user loop to the selection of service loops
(LOOP 1..n).
