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10

Important Note:

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.

Ebene 1 

Ebene 2

Legend

Press  the  button  briefly  (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 seconds (L), 
wait for the door symbol to appear (upper 
right  corner  of  the  display)  and  then  re-
lease the button. The menu is then upda-
ted resp. switches to the sub-menu.

Hold down the button (H) until the device 
switches to another level or switches back 
from the sub-menu.

A detailed display overview including sub-
menus is available upon request.

H

L

S

Ebene 1

Ebene 2

Ebene 3

Ebene 4

3

4

4

4

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

2

2

2

2

1

1

3

* Function only available in variant zelsius C5 „Glycol Meter“

2

S

S

S

S

H

H

H

H

1
3

1
3

1
3

3

3

1

2

3

4

1

1

water-glycol-mixtures*

1

1

1

1

Heat energy

(Main display)

Sensor type and 

installation point VMT

Model number

Serial number

Heat energy difference from 

last due date to now

Cooling energy difference 

from last due date to now

Heat energy difference from 

1. this month to now

Cooling energy

Segment test

End of the battery

Error status

System Date

Maximal Flow

Cooling energy difference from 

1. this month to now

Volume difference from 

1. this month to now

Due date cooling energy

Energy

Last due date

Date last due date

Volume

Supply temperature

Flow rate

System Time

Operation hours

Primary M-Bus address

Date month maximal

flow

Maximum power, Average value 

since commissioning

Maximum heat energy 

power month

Return temperature

Temperature difference

Certification model

Firmware version

Maximum cooling energy 

power month

Maximum cooling energy power,

average value since commissioning

Function

Output 3

Function

Output 2

Function

Output 1

Opto readout energy

Current output

Pulse value

Input 1

Pulse value

Input 2

Pulse value

Input 3

Ebene 1

Ebene 2

Ebene 3

Ebene 4

3

4

4

4

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

2

2

2

2

1

1

3

* Function only available in variant zelsius C5 „Glycol Meter“

2

S

S

S

S

H

H

H

H

1
3

1
3

1
3

3

3

1

2

3

4

1

1

water-glycol-mixtures*

1

1

1

1

Heat energy

(Main display)

Sensor type and 

installation point VMT

Model number

Serial number

Heat energy difference from 

last due date to now

Cooling energy difference 

from last due date to now

Heat energy difference from 

1. this month to now

Cooling energy

Segment test

End of the battery

Error status

System Date

Maximal Flow

Cooling energy difference from 

1. this month to now

Volume difference from 

1. this month to now

Due date cooling energy

Energy

Last due date

Date last due date

Volume

Supply temperature

Flow rate

System Time

Operation hours

Primary M-Bus address

Date month maximal

flow

Maximum power, Average value 

since commissioning

Maximum heat energy 

power month

Return temperature

Temperature difference

Certification model

Firmware version

Maximum cooling energy 

power month

Maximum cooling energy power,

average value since commissioning

Function

Output 3

Function

Output 2

Function

Output 1

Opto readout energy

Current output

Pulse value

Input 1

Pulse value

Input 2

Pulse value

Input 3

Ebene 1

Ebene 2

Ebene 3

Ebene 4

3

4

4

4

3

3

3

3

3

3

3

3

3

3

2

2

2

2

2

2

2

2

2

2

1

1

3

* Function only available in variant zelsius C5 „Glycol Meter“

2

S

S

S

S

H

H

H

H

1
3

1
3

1
3

3

3

1

2

3

4

1

1

water-glycol-mixtures*

1

1

1

1

Heat energy

(Main display)

Sensor type and 

installation point VMT

Model number

Serial number

Heat energy difference from 

last due date to now

Cooling energy difference 

from last due date to now

Heat energy difference from 

1. this month to now

Cooling energy

Segment test

End of the battery

Error status

System Date

Maximal Flow

Cooling energy difference from 

1. this month to now

Volume difference from 

1. this month to now

Due date cooling energy

Energy

Last due date

Date last due date

Volume

Supply temperature

Flow rate

System Time

Operation hours

Primary M-Bus address

Date month maximal

flow

Maximum power, Average value 

since commissioning

Maximum heat energy 

power month

Return temperature

Temperature difference

Certification model

Firmware version

Maximum cooling energy 

power month

Maximum cooling energy power,

average value since commissioning

Function

Output 3

Function

Output 2

Function

Output 1

Opto readout energy

Current output

Pulse value

Input 1

Pulse value

Input 2

Pulse value

Input 3

Summary of Contents for zelsius C5-ISF

Page 1: ...lsius C5 ISF Installation and operating manual electronic compact heat meter with single jet flow sensor ISF M Bus wM Bus and 3 inputs outputs optional qp 0 6 1 5 2 5 m3 h EnergyMetering All that coun...

Page 2: ...to use After this the national regulations for devices subject to com pulsory verification apply within the EU The duration of initial verification validity in Ger many remains 5 years for heat meters...

Page 3: ...tance To avoid malfunctions due to other interfer ences do not install fluorescent lamps switch cabinets or electric devices such as motors or pumps in the immediate vicinity of the meter minimum dist...

Page 4: ...radio Supply 3 6 V lithium battery different capacities Battery lifetime Years 6 opt 11 changeable during the operation time Protection class IP54 EMC C Ambient conditions climatic influencing valid...

Page 5: ...signification brown M Bus 1 M Bus Line 1 white M Bus 2 M Bus Line 2 Compact version Combiversion E H1 H2 25mm Dimensions Height compact version Hmax 55 mm Emax 21 mm Height combiversion H1 H2 Hmax 65...

Page 6: ...eline of min 10xDN has to be pro vided upstream of the meter It is important to ensure adequate system pressure to avoid cavi tation To mount the heat computer of the C5 ISF in combi version on the wa...

Page 7: ...temperature sensor The installation of the temperature sensors should be preferably symmetrical and direct installation Do not remove the return sensor if already mounted in the VMU This is also vali...

Page 8: ...ntegrated in the flow sensor Supply Return Consumer Symmetrical sensor installation for zelsius C5 ISF Supply Return Consumer Asymmetrical sensor installation for zelsius C5 ISF with the return sensor...

Page 9: ...eck sensors 2 Temperature out of measuring range Check sensors 3 Short circuit return sensor Check sensors 4 Interruption return sensor Check sensors 5 Short circuit supply sensor Check sensors 6 Inte...

Page 10: ...3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 3 Function only available in variant zelsius C5 Glycol Meter 2 S S S S H H H H 1 3 1 3 1 3 3 3 1 2 3 4 1 1 water glycol mixtures 1 1 1 1 Heat energy Main disp...

Page 11: ...rtification model Firmware version ing energy ing energy power since commissioning Function Output 3 Function Output 2 Function Output 1 Opto readout energy Pulse value Input 1 Pulse value Input 2 Pul...

Page 12: ...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 loc...

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