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4

Technical data calculator

Temperature range

°C

0…105

Temperature difference range

K

3…80

Display

 LCD 8-digit + additional character

Ambient temperature

°C

 5...55

Minimum temperature diffence

K

3 ( cooling or change-over: 2)

Resolution temperature

°C

0,01

Measurement frequency

s

adjustable ex works, beginning with 2s, standard 30s

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 operating time

Maximum value storage

extensive storage of flow rate, performance and other parameters

Interface

Standard

optical interface (ZVEI, IrDA)

optional

M-Bus, wM-Bus, RS485, 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 for complete  

compact meter)

- climatic

Highest permissible ambient temperature 55°C

Lowest permissible ambient temperature  5°C

Humidity class IP54

- mechanical

  class

M1

- electro-magnetic  

  class

E1

colour

connection

signification

white

I/O 1

In-/Output 1

yellow

I/O 2

In-/Output 2

green

I/O 3

In-/Output 3

brown

GND

common ground for 

I/O 1-3

Technical data M-Bus

Cable length

1,5 m

Cable

D=3.8 mm, 2-core

A  firmly  attached  cable  is  included:  external  
wiring must be done by oneself.

Technical data I/O

Load max.

max. 30V DC/20 mA

I/O 1, 2, 3

Open Drain, n-channel FET

Cable

D = 3.8 mm, 4-core

Pulse-duty factor

1:1 (out); 1:5 (in)

Cable length

1,5 m

Input frequency

max. 1 Hz

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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