EnergieMetering
zelsius® C5-IUF
Installation and
operating manual
Electronic compact heat meter
with ultrasonic flow sensor IUF
optionally M-Bus, wM-Bus and 3 inputs/outputs
optional qp 0,6/1,5/2,5 m3/h
All that counts.
Installation manual
General information
With zelsius C5 IUF, you have acquired one of
the most up-to-date, modern heat meters cur-
rently available on the market. By this version,
the water volume is determined based on the
transit time method. The measurement accuracy
is based on the measurement requirements of
EN 1434 class 2, optionally class 3. Expressive
symbols in the display and easy menu naviga-
tion make readout simple. Can be operated with
one single button. It is equipped with a long-life
battery made for operation during the initial veri-
cation validity period (5 years) including a re-
serve of at least another year. The meter can be
equipped optionally with a battery lifetime of 11
years.
Technical data flow sensor IUF
Nominal flow qp m³/h 0,6 1,5 2,5
Maximum flow qs m³/h 1,2 3 5
Minimum flow qi l / h 6 / 12 / 24 15 / 30 / 60 25 / 50 / 100
Pressure loss at qp bar <= 0,25 bar
Medium temperature range °C 0°C <= Ɵ q <= 90°C / 0°C <= Ɵ q <= 130°C
Minimum pressure
Measurement accuracy class 3 / 2
Nominal pressure/peak pressure PS/PN
IP-Protection class 68
Installation position in any position
Installation return flow optionally forward flow
Cable length up to calculator m 1,2
Installation place temperature sensorsd M10 x 1
Heat carrier (Medium) Water
Nominal diameter DN 15 15 20
Connecting threads*
* optionally
(to avoid cavitation) bar 1 bar at qp and 80°C medium temperature range
Body with
threaded connection
PS/PN Body with flange/DN 16/16 / 25/25
Nominal flow qp
(m³/h)
0,6 110 G¾B --
0,6 130 G1B --
0,6 190 G1B 20
1,5 110 G¾B --
1,5 130 G1B --
1,5 190 G1B 20
2,5 130 G1B --
2,5 190 G1B 20
L [mm]
Threaded
connection
16/16
Flange / ND
2
MID - Initial verification
®
zelsius
C5-IUF is produced and tested in
compliance with the new European Measuring
Instruments Directive (MID). According to this
directive, devices are no longer carrying an ini-
tial verication stamp, but rather the year of the
device’s declaration of conformity (recognizable
on the front of the device, for example: M12).
The MID controls the use of heat meters up to
the moment they are placed on the market resp.
Technical data calculator
Temperature range °C 0...105 / 0...150 *
Temperature difference range K 3...80 / 3...130 *
Display LCD 8-stellig + Sonderzeichen
Ambient temperature during operation
Storage temperature °C -20...+65
Resolution temperature °C 0,01
Measurement frequency s adjustable ex works, beginning with 2s, standard 32s
Unit to read the heat consumption Standard MWh; optionally kWh, GJ
Data storage 1 x daily
Due date values Storage of all monthly values during the entire operation time
Maximum value storage extensive storage of flow rate, performance and other parameters
Interface Standard Optical interface (ZVEI, IrDA), 3 Pulseinputs/-outputs
Supply 3,6 V lithium battery (different capacities)
Battery lifetime Years > 6, opt. > 11 (changeable during the operation time)
Protection class IP54
EMC A
Ambient conditions/climatic
influencing (valid for complete
compact meter)
°C 5...55
optional M-Bus, wM-Bus, RS485, radio
- climatic
- mechanical class M1
- electro-magnetic class E1
Highest permissible ambient temperature 55°C,
Lowest permissible ambient temperature 5°C,
Humidity class IP54
Technical data temperature sensors
Platinum precision resistor Pt 1000
Sensor diameter type mm 45 x 5,0 mm / 45 x 5,2 mm / DS 27,5 more on request
Temperature range °C 0 – 105/0…150
Cable length m 1,5 (opt. 5)
VL by direct immersion or by immersion sleeves (in case of existing measuring points)
Installation
Dimensioning limits may apply for non-symetrical temperature sensors installation.
* optionally
by direct immersion or by immersion sleeves (in case of existing measuring points)
RL
Integrated in the flow sensor, optionally external
3
Pulse inputs and outputs
In 1…3 Out 1…3
Input
GNDGND
Output
DG
(optional)
their rst putting into use. After this, the national
regulations for devices subject to compulsory
verication apply within the EU. The duration of
initial verication validity in Germany remains 5
years for heat meters.
After this period has expired the measuring de-
vice may no longer be used for billing in com-
mercial use. The regulations resp. validity period
may vary in other countries of the EU. ZENNER
International GmbH & Co. KG declares that this
product with the number of the EC type-exam-
ination certicate DE-12-MI004-PTB010 com-
plies with the requirements of the EC directives
2004/22/EC (Measuring instruments directive)
and 89/336/EEC (electro-magnetic compatibility)
Electro-magnetic interference
zelsius® C5-IUF fulls the national and interna-
tional requirements for interference resistance.
To avoid malfunctions due to other interferences,
do not install uorescent lamps, switch cabinets
or electric devices such as motors or pumps in
the immediate vicinity of the meter. Cables leav-
ing the meter should not be laid parallel to live
cables (230V) (minimum distance 0.2m)/
By meters with pulse outputs, the pulse value
can be called up in the display (see the display
overview, Level 4).
The pulse value of the outputs
is permanently set and corresponds with the last
position of the associated display value.
Example:
Output 1 = energy output
Energy display = XXXXX.XXX
Last position = 0.001 MWh = 1 kWh
Output pulse = 1 kWh
In 1…3 Out 1…3
Input
GN
Output
ND
Care instructions
Clean plastic surfaces with a damp cloth only.
Do not use any scouring or aggressive cleaning
agents!
The device is maintenance-free during the ser-
vice life. Repairs can only be made by the manu-
facturer. The most up-to-date information about
this product nd of our installation notice can be
found at www.zenner.com.
4
colour
white I/O 1 In-/Output 1
yellow I/O 2 In-/Output 2
green I/O 3 In-/Output 3
brown GND
connection signification
common ground for
I/O 1-3
Technical data M-Bus
Cable length 1,5 m
Cable D=3,8 mm, 2-core
Technical data I/O
Load max. max. 30V DC/20 mA
I/O 1, 2, 3
Cable D = 3,8 mm, 4-core
Pulse-duty factor 1:1 (out); 1:5 (in)
Cable length 1,5 m
Input frequency
Open Drain, n-channel FET
max. 1 Hz
A rmly attached cable is included: external wir-
ing must be done by oneself.
M-Bus (optional)
The optional M-Bus interface complies with the
norm 1434-3 and operates with 2400 baud xed.
The two conductors can be connected in any or-
der to the M-Bus network.
colour
brown M-Bus 1 M-Bus-Line 1
white M-Bus 2 M-Bus-Line 2
* see page 2
connection signification
L*
5
H
= 30mm
1max
6153
H
= 25mm
2
Installation instructions
General Information
Read these instructions carefully right up to the
end before starting to mount the device! The in-
stallation has to be done by qualied profession-
al personnel. The current laws and regulations
so as the generally accepted engineering prin-
ciples have to be observed during mounting and
tting, especially EN1434 part 1+6, (in Germany
also AGFW directive FW202, FW510, FW218
and DIN4713 part 4 and the initial verication di-
rective). At devices with M-Bus the general rules
of technology and the respective regulations for
electrical installations have to be followed.Make
sure no heating water escapes during installation
– this can cause burns!
The maximum heating water temperature at the
ow sensor may not exceed depending on ver-
sion 90°C respectively 130°C. For heating water
temperature over 90°C or using as a cooling me-
ter, the detachable calculator has to be mounted
separately with the supplied mounting adapter.
For heating systems with a lack of temperature
mixing resp. with temperature stratication a
straight pipeline of min. 10xDN has to be pro-
vided upstream of the installation point.
The ow measuring section is wear-free because
no moving parts. No inlet or outlet sections are
necessary. It is important to ensure adequate
system pressure to avoid cavitation. The review
of the approval can be identied denitely in the
display menu (Level 3).
ZENNER recommends to use direct temperature
measurement and not to use immersion sleeves.
Mounting flow sensor (VMT)
■ Mount ball valves up- and downstream of the
VMT.
■ Consider the correct installation point (supply
or return). Normally this ist the return pipe
(cooler pipe at heating systems). Please note
the type plate information.
■ Consider the correct ow direction. This is
indicated by an arrow on the side of the VMT.
■ The ow sensor can be installed in any posi-
tion (also „overhead“).
■ Do not install at highest point of piping to
avoid air inside the ow sensor.
■ Consider the dimensions of the heat meter.
ZENNER International GmbH & Co. KG
Römerstadt 6
D-66121 Saarbrücken
Telephone +49 681 99 676-30
Telefax +49 681 99 676-3100
E-Mail info@zenner.com
Internet www.zenner.com
6
Subject to modications and errors excepted. Any liability for misprints excluded. SAP144505_150706_EN
Notes to installation of the ball valves
■ Mount ball valves up- and downstream of the
meter.
■ Mount a ball valve with bore M10x1 for direct
sensors in the supply. This is required for the
installation of the supply sensor.
■ For symmetrical temperature sensor instal-
lation, mount an identical ball valve in the
return. This one is used for mounting the
return sensor.
Mounting heating-/cooling energy meter
■ Flush the system thoroughly before installing
the heating-/cooling energy meter.
■ Close valves and release pressure.
■ Dismount the existing ow sensor or meter
blank.
■ Use only new and awless sealing material
and check the seal face for damage.
■ Install the new ow sensor according to the
correct ow direction and installation position.
■ Turn heat computer to desired reading posi-
tion.
Mounting temperatur sensors
■ The installation of the temperature sensors
should be preferably symmetrical and direct
installation.
■ Do not remove the return sensor if already
mounted on the VMU. This is also valid for
all the safety seals which are mounted on the
device as a standard.
■ Sensors are colour-coded (red= hot; blue=cold).
■ The connecting cables may not be buckled,
extended or shortened.
■ The seal at the sensor installation point on the
measuring capsule may not be damaged.
■ Remove locking screw and seal at the ball
valve completely, if existing.
■ Attach the O-ring to the installation aid (the
2nd O-ring is only a spare O-ring). Using the
installation aid, insert the O-ring into the
installation point according to DIN EN 1434
with a slight circular motion.
■ Using the other end of the installation aid
bring the O-ring into the correct position.
■ Insert the 2 halves of the plastic connector
into the sensor’s three notches (crimps) and
press them together.
■ Use the installation aid as positioning aid.
■ Insert the temperature sensor into the installa-
tion point and screw it in tightly until the dead
stop of the seal on the 12-point is reached
(mounting torque 3-5 Nm).
■ The temperature sensor installation point
which is optionnally integrated in the ow
sensor must be secured.
■ Secure the sensor after installation against
unauthorised removal with appropriate sealing
(available as a sealing set)!
Installation DF-adapter
7
Putting into use
Consumer
Symmetrical sensor installation for zelsius® C5-IUF with the return
sensor integrated in the measuring capsule
Supply
Return
■ Open valves carefully and chek installation for
leakage.
■ If the sleep mode of the counter is enabled
(Display: SLEEP 1), then it must be deacti-
vated by longer pressing the button (>5s).
■ While the system is operating, check whether
the volume display advances and the temper-
atures displayed correspond with the actual
temperatures (see the display overview).
■ Wait for the temperature display to be updated
(1-2 sec).
■ Secure meter with the enclosed sealing mate-
rial against unauthorised removal.
■ Fill in the putting into use report in accordance
with PTB-Directive TR K9.
Supply
Consumer
Return
Symmetrical sensor installation for zelsius® C5-IUF with the return
sensor integrated in the measuring capsule
Supply
Consumer
Return
Mounting in existing immersion sleeves:
The device C5 can be put into use in connection
with existing immersion sleeves in accordance
with the article „Putting into use of MID homolo-
gated temperature sensors” released in the PTB
notications 119 (2009), vol. 6.
Based on current information, the regulation
has a period of validity until 30.10.2016. For the
identication and marking of the usable existing
immersion sleeves in connection with the C5
device, an identication and marking set can be
delivered from our company.
8
Symmetrical sensor installation for zelsius® C5-IUF
Status display / Error codes
The symbols in the table below show the meter’s operational status. The status messages only appear in
the main display (energy)! The temporary display of the warning triangle can be caused by special operat-
ing states and does not always mean that the device is malfunctioning. However, should the symbol be
displayed over a longer period of time, you should contact the service company.
Symbol
Error codes show faults detected by zelsius® C5-IUF. If more than one error appears, the sum of the error codes is
displayed: Error 1005 = error 1000 and error 5.
Code
1 Temperature out of measuring range Check temperature
2 Temperature out of measuring range Check temperature
3 Short-circuit return sensor Check temperature
4 Interruption return sensor Check temperature
5 Short-circuit supply sensor Check temperature
6 Interruption supply sensor Check temperature
7 Battery voltage Exchange device
8 Hardware error Exchange device
9 Hardware error Exchange device
10 Error in the measuring system Exchange device
20 No water in the measuring tube Check operating pressure
30 Reverse water flow detected Check installation position
40 Air inside the medium Vent system
50 Measured value outside overload range Check dimensioning
100 Hardware error Exchange device
800 Wireless interface Exchange device
1000 Status end of the battery Exchange device resp. battery
2000 Status initial verification expired Exchange device
Status Event
External voltage -
Flow existent -
Attention! Check system/device for error
Symbol ashing: Data transmission
Symbol constantly displayed: optical interface active
Emergency operation. Exchange device
-
-
Error Event
9
Level 1 Level 2
Ebene 1 Ebene 2 Ebene 3 Ebene 4
Certification model
3
Pulse value
Input 1
4
Pulse value
Input 2
4
Pulse value
Input 3
4
Sensor type and
installation point VMT
3
Model number
Serial number
End of the battery
Error status
3
System Date
3
System Time
3
Operation hours
3
Primary M-Bus address
3
Firmware version
3
Function
Output 2
3
Function
Output 1
3
Date month maximal
flow
2
2
Maximum power, Average value
since commissioning
Maximum heat energy
power month
2
2
Maximum cooling energy
power month
Maximum cooling energy power,
average value since commissioning
2
Heat energy difference from
last due date to now
2
Cooling energy difference
from last due date to now
Heat energy difference from
1. this month to now
2
Maximal Flow
2
2
Cooling energy difference from
1. this month to now
2
Volume difference from
1. this month to now
3
S
S
HHH
Ebenenwechsel können
jedem beliebigen Menü-
punkt heraus erfolgen.
Hinweis
Je nach Ausführung Ihres Zählers können Anzeigen in Anzahl und
Reihenfolge von den Abbildungen mehr oder weniger abweichen.
Legende
Taste kurz drücken (S), zum
Blättern von oben nach un-
ten. Nach unterstem Menü-
punkt erfolgt ein automati-
scher Sprung zum obersten
Menüpunkt (Schleife).
Taste etwa 2 sec. drücken
(L), warten bis Türsymbol
(oben rechts in der Anzeige)
erscheint, dann Taste loslas-
sen. Erst dann wird Menü
aktualisiert bzw. erfolgt der
Sprung zum Untermenü.
Taste halten (H) bis Ebenen-
wechsel oder Rück sprung
aus Untermenüs erfolgt.
H
L
S
1
3
1
3
1
3
3
3
Certification model
3
Pulse value
Input 1
4
Pulse value
Input 2
4
Pulse value
Input 3
4
Sensor type and
installation point VMT
3
Model number
Serial number
End of the battery
Error status
3
System Date
3
System Time
3
Operation hours
3
Primary M-Bus address
3
Firmware version
3
3
Function
Output 1
3
3
S
HH
Ebenenwechsel können
jedem beliebigen Menü-
punkt heraus erfolgen.
Hinweis
Legende
Taste kurz drücken (S), zum
Blättern von oben nach un-
ten. Nach unterstem Menü-
punkt erfolgt ein automati-
scher Sprung zum obersten
Menüpunkt (Schleife).
Taste etwa 2 sec. drücken
(L), warten bis Türsymbol
(oben rechts in der Anzeige)
erscheint, dann Taste loslas-
sen. Erst dann wird Menü
aktualisiert bzw. erfolgt der
Sprung zum Untermenü.
Taste halten (H) bis Ebenen-
wechsel oder Rück sprung
aus Untermenüs erfolgt.
H
L
S
1
3
1
3
1
3
3
3
Important Note:
Heat energy
(Main display)
1
H
Cooling energy
1
2
3
4
Segment test
1
Date last due date
1
Energy
Last due date
1
Due date cooling energy
Volume
Flow rate
Supply temperature
Return temperature
Temperature difference
Current output
S
10
2
Heat energy difference from
last due date to now
2
Cooling energy difference
from last due date to now
Heat energy difference from
1. this month to now
2
Cooling energy difference from
1. this month to now
2
Volume difference from
1. this month to now
2
Maximal Flow
2
Date month maximal
flow
2
Maximum power, Average value
since commissioning
2
Maximum heat energy
power month
2
Maximum cooling energy power,
average value since commissioning
2
Maximum cooling energy
power month
S
H
The optical interface has to be activated by
means of the OptoHead through keypress before
reading out of the de vice.
Devices, which are in sleep mode (Display:
SLEEP 1) have to be activated through keypress
until the energy display shows up.
Depending on you meter’s model its displays
can differ in number and order from those shown
here.
Level 3
Pulse value
Input 1
4
Pulse value
Input 2
4
Pulse value
Input 3
4
S
H
Ebenenwechsel können
jedem beliebigen Menü-
punkt heraus erfolgen.
Hinweis
Je nach Ausführung Ihres Zählers können Anzeigen in Anzahl und
Reihenfolge von den Abbildungen mehr oder weniger abweichen.
Legende
Taste kurz drücken (S), zum
Blättern von oben nach un-
ten. Nach unterstem Menü-
punkt erfolgt ein automati-
scher Sprung zum obersten
Menüpunkt (Schleife).
Taste etwa 2 sec. drücken
(L), warten bis Türsymbol
(oben rechts in der Anzeige)
erscheint, dann Taste loslas-
sen. Erst dann wird Menü
aktualisiert bzw. erfolgt der
Sprung zum Untermenü.
Taste halten (H) bis Ebenen-
wechsel oder Rück sprung
aus Untermenüs erfolgt.
H
L
S
1
3
1
3
1
3
Ebenenwechsel können
jedem beliebigen Menü-
punkt heraus erfolgen.
Level 4
Legend
3
Sensor type and
installation point VMT
3
Serial number
3
Model number
3
End of the battery
3
Error status
3
System Date
3
System Time
3
Operation hours
3
Primary M-Bus address
3
Certification model
3
Firmware version
3
Function
Output 1
3
Function
Output 2
3
Function
Output 3
2
Opto readout energy
S
4
1
3
Pulse value
Input 1
4
1
3
Pulse value
Input 2
4
1
3
Pulse value
Input 3
S
H
H
S
Press the button briey (S) to
switch through the display from
top to bottom. When you have
reached the last menu item the
device automatically jumps back
to the menu item at the top (loop).
Press the button for about 2 sec-
L
onds (L), wait for the door symbol
to appear (upper right comer of
the display) and then release the
button. The menu is then updated
resp. Switches to the sub-menu.
H
Hold down the button (H) until the
device switches to another level
or switches back from the sub-
menu.
A detailed display overview in-
cluding submenus is available
upon request.
11
Disposal
Attention: This device contains a non-remov-
able and non-rechargeable lithium battery.
Batteries contain substances, which could harm
the environment and might endanger human
health if not disposed of properly.
To reduce the disposal quantity so as unavoid-
able pollutants from electrical and electronic
equipment in waste, old equipment should be
reused prior or materials recycled or reused as
another form.
This is only possible if old equipment, which con-
tains batteries or other accessories are disposed.
Therefore please contact the department of your
local authority which is responsible for waste
disposal. Alternatively a waste disposal via
ZENNER is possible.
Your local or municipal authority or the local
waste disposal company can give you informa-
tion relating the collection points for your used
equipments.
Attention:
Do not dispose of the devices with domestic
waste.
In this way, you will help to protect natural re-
sources and to promote the sustainable reuse
of material resources.
For any question, please contact
info@zenner.com
The most up-to-date information about this prod-
uct and of our installation notice can be found at
www.zenner.com
12
Loading...