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Operating Instructions ULTRAHEAT
Fault Code
Fault
FL
nEG
Wrong flow direction
Eventually changing
with
Negative temperature
DIFF nEG
difference
Eventually changing
with
No flow rate can be
F0
measured
Interruption in the
F1
supply sensor
Interruption in the
F2
return sensor
Electronics for tem-
F3
perature evaluation
defective
F4
Battery empty
Short-circuit in the
F5
supply sensor
Short-circuit in the
F6
return sensor.
Fault in internal
F7
storage operation
Fault F1, F2, or F3 or
F5, F6 pending for
longer than 8 hours,
F8
detection of fraud
attempts. No more
measurements are
performed.
Fault in the electron-
F9
ics
If the response thresholds are exceeded and the flowrate and
temperature are positive, the heat quantity and volume will be
summated. The segment test displays all display segments for
test purposes.
On the yearly set day, the meter readings for heat quantity, vol-
ume, and missing time are placed in a previous year memory
each year.
The flowrate, heat power, and temperature difference are re-
corded signed. Values below the response threshold are pre-
ceded by a "u". The current temperatures are displayed together
as integer °C values on one display line.
The 8-digit customer number (secondary address for M-bus op-
eration) can be set in parameterization mode. The most signifi-
cant digit is suppressed on the display. The device number is
assigned by the manufacturer.
The operating hours are counted from initial connection of the
power source. Missing hours are summated if a fault is pending
that prevents the heat meter from measuring. The date is incre-
mented daily.
The firmware version number is assigned by the manufacturer.
Technical Data:
Technical Data Electronic Unit:
Ambient temperature
Power supply
Temperature sensor
Communication
Protocol
Splittability
Ultrasonic Heatmeter ULTRAHEAT
®
XS
Measures
Check / correct flow or
mounting direction
Check / exchange mount-
ing position of sensors
Air in the measuring
unit/pipe, vent pipe (as-
delivered state)
Contact service
Contact service
Contact service
Contact service
Contact service
Contact service
Contact service
This F8 error message
must be reset by service.
Contact service
5 - 55°C
Battery for 6 or 11 years
or 24V AC/DC external (special
version)
Pt 500
Optical interface standard, M-bus
or pulse output optional
IEC870, 300 baud in Nb
Always removable,
cable length 1 m
®
XS
Subject to change without prior notice
Technical Data of the Flowrate Measuring Unit
Type
q
p
0.6
110mm (3/4")
1.0
110mm (3/4")
1.5
110mm (3/4")
2.5
130mm (1")
Temperature range
Nom. pressure
Overload
Mounting position
Measurement range
Measurement accuracy:
Technical Data Temperature Sensor:
Temperature sensor
Connection
Type
Cable length
Max. temperature
Installation supply sensor
Installation return sensor
Notes:
Observe national calibration laws when replacing the battery.
Batteries must not be opened, come into contact with water, or be
exposed to temperatures above 80 °C. Dispose of used batteries
at suitable collection centers.
The transport of the heat meter is permitted only in the original
package. If the meter needs to be sent by air freight then the
battery must be removed prior to shipping!
Latest information about our heat meters you may also find in the
internet:
www.landisgyr.com
EC Declaration of conformity
Landis+Gyr herewith declares that this product complies
with the relevant requirements of the following directives:
−
2004/22/EC Measuring instruments directive
−
89/336/EEC Electromagnetic compatibility
− 73/23/EEC Low voltage directive
EC type-examination certificate
DE-06-MI004-PTB007
Dimensions
190mm(1")
190mm(1")
190mm(1")
190mm(1")
15 - 105°C
1.6 MPa (PN 16)
qs = 2 x qp, permanent
Horizontal or vertical
1:100 approved, calibrated
1:50
EN 1434 cl. 3
Pt 500 acc. to EN 60751, not
removable
2-wire, permanent.
DS direct short, M10 x
27.5mm acc. to EN1434 or
rod sensor 45 x 5.2 dia. mm
1.5m standard, 5 m optional
105 °C
Mounting element for DS 1/2"
x M10, ball valves for DS,
brass pocket 1/2" for rod sen-
sor
Integrated (when meter is for
installation in return)
Landis+Gyr GmbH
Humboldtstr. 64
D-90459 Nürnberg
Germany
UH 304 – 101l
2/2
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