Error Codes; Technical Data - Siemens WSM5 Serie Manual De Manejo Y De Montaje


Fit the user locks to the fittings and the sensors. The scope
of supply includes two self lock seals for sealing a sensor
and the connecting fitting.

Note the meter status for energy/volume and operat-
ing/missing hours.
Error messages for incorrect installation
Error "incorrect flow direction (negative)"
Check that the flow direction arrows on the volume measurement unit
match the flow direction of the system. If the directions do not match,
turn the volume measurement unit through 180°.
Error "negative temperature difference"
Check whether the sensors are installed correctly. If the sensors are
not installed correctly, change the installation position of the sensors.
Heat meter:
Sensor in the flow - pipe with higher temperatures; sensor in return -
pipe with lower temperatures
Cold meter:
Sensor in the flow - pipe with lower temperatures; sensor in return -
pipe with higher temperatures
6. Functional Details
If the respective operation thresholds are exceeded and flow
and temperature difference are positive, the meter summates
the energy and the volume.
If the operate margin is gone below a "u" is displayed at a leading
point for the flow, power and temperature display.
For a positive flow the activity display
loop in the LCD.
All segments of the display are switched on for control purpos-
es during the segment test. The flow, power and temperature
difference are recorded with the appropriate +/- signs.
The operating hours are counted from the first connection of
the power supply. The meter saves "operating time with flow"
as soon as a positive flow is recognised. Missing hours are
summated if there is a fault and the meter is thus unable to
take a measurement.
Stored maximum values are marked with an "
right hand area of the LCD.
7.

Error codes

The meter continuously runs a self-diagnosis and can thus
recognise and display various meter errors:
Error code Error
FL nEG Incorrect flow direction
if necessary in exchange with:
DIFF nEG Negative temperature difference
if necessary in exchange with:
F0 No flow can be measured
F1 Interruption in the flow sensor
F2 Interruption in return-flow sensor
F3 Electronics for temperature evalua-
tion defective
F4 Battery flat
F5 Short-circuit flow temperature
sensor
F6 Short-circuit return temperature
sensor
F7 Fault in the internal memory
holding
F8 Errors F1, F2, F3, F5 or F6 for
longer than 8 hours, recognition of
attempts to manipulate.
No further measurements are
carried out.
F9 Error in the electronics
Siemens Building Technologies
appears in the user
" in the lower
Notes for service
Check flow or installation direc-
tion; correct if necessary
Check installation point of the
sensors; exchange if necessary
Air in the measurement unit/pipe,
bleed air from pipe (delivery
condition)
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Measure dependent on error
code. Error message F8 must be
reset by service department.
Inform service department
UH068 – 006a
8.

Technical Data

The information on the meter must be observed!
General
Measuring accuracy Class 2 or 3 (EN 1434)
Environment class A (EN 1434) for indoor installation
Mechanical class M1 *)
Electromagnetic class E1 *)
*) according to 2004/22/EC Directive on Measuring Instruments
Ambient humidity < 93% rel. humidity at 25°C, without condensation
Max. height 2000 m above sea level
Storage temperature - 20 ... 60°C
Electronic unit
Ambient temperature 5... 55 ℃
Housing protection rating IP 54 according to EN 60529
Power supply Battery for 6 or 11 years
Operate margin f. T 0.2 K
Temperature difference T 3 K ... 80 K
Temperature measurement 0 ... 180 °C
range
LCD Indication 7 digit
Optical interface Standard, EN 62056-21
Communication Optional, e.g. M-Bus
Separability Always detachable, cable length 1.5 m
Sensor
Type Pt 500 according to EN 60751, not detachable
Connection type Pt500, 2 wire technology
Cable length 1.5 m (optional 5 m)
Construction type Bolb sensor ø 5.2 × 45 mm
Temperature range 0 ... 95 °C
Volume measure-
ment unit
Protection class IP 65 according to EN 60529
Installation site Return-flow or flow
Installation position Any, horizontal or vertical
Smoothing section None
Measuring range 1:100
Temperature range 5... 90 °C
National type approvals may be different.
Maximum overload qs = 2 x qp, permanent
Nominal pressure PN16 (1.6 MPa)
qp m³/h Overall length and connection
0,6 110 mm (3/4'')
1,5 110 mm (3/4'')
2,5
9. Asymmetric Installation (temperature sen-
sor)
The meter can also be installed asymmetrically, i.e. one tem-
perature sensor is installed in the volume measurement unit
directly immersed while the other temperature sensor is in-
stalled in an protection pocket. For the lower value the temper-
ature differerence 5K thus applies at the lower flow limit qi.
With this type of installation it must be ensured that only the
protection pockets shown below are used.
The national regulations in the country of use must also be
observed.
Inner diameter
Immersion sleeve
[mm]
type
SPX/50/5.2 5.2
WZT-M35 5.2
JUMO 00420848 5.2
WZT-M50 5.2
JUMO 00326403 5.2
CE2U5372xx
130 mm (1'')
130 mm (1'')
Insertion length
Thread size
from upper edge
[mm]
42 ½''
46 ½''
46 ½''
50 ½''
50 ½''
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