Zenner C5-ISF Installation And Operating Manual
zelsius® 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 counts.
Installation manual
General information
With zelsius® C5-ISF you have acquired one of
the most up-to-date, modern heat meters cur-
rently available on the market.
Expressive symbols in the display and easy
menu navigation make readout simple. Can be
operated with one single button. It is equipped
with a long-life battery made for operation dur-
ing the initial verication validity period (5 years)
including a reserve of at least another year. The
meter can be equipped optionally with a battery
lifetime of 11 years.
MID - Initial verification
zelsius® C5-ISF is produced and tested in
compliance with the new European Measur-
ing Instruments Directive (MID). According to
this directive, devices are no longer carrying an
initial verication stamp, but rather the year of
the device’s declaration of conformity (recog-
nizable 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. their rst putting into use. After this, the
national regulations for devices subject to com-
pulsory verication apply within the EU.
The duration of initial verication validity in Ger-
many remains 5 years for heat meters. After
this period has expired the measuring device
may no longer be used for billing in commercial
use.
The regulations resp. validity period may vary in
other countries of the EU.
2
* Standard: Ratio 25; optionally R50 but not for qp=0,6 and non-symmetrical temperature sensors installation
Technical data flow sensor ISF
Nominal flow qp m³/h 0,6 1,5 2,5
Maximum flow qs m³/h 1,2 3,0 5,0
Minimum flow qi horizontally* l / h 12 / 24 30 / 60 50 / 100
Minimum flow qi vertically* l / h 12 / 24 30 / 60 50 / 100
Starting flow horizontally ca. l/h 4 4 5
Pressure loss at qp bar <= 0,25 bar
Temperature range °C 10°C <= θ
q
<= 90°C
Minimum pressure
(to avoid cavitation)
bar 0,3
Measurement accuracy class 3
Nominal pressure PS/PN 16
Nominal diameter DN 15 15 20
Installation position horizontally or vertically, no upside down installation
Installation return flow optionally forward flow
Cable length up to calculator
(in version combi)
m 1,2
Installation place temperature sensors M10 x 1
Heat carrier (Medium) water
3
Technical data temperature sensors
Platinum resistance Pt 1000
Sensor diameter/type mm Standard: 5,0 (DS according to EN 1434); other sizes on demand
Temperature range °C 0 - 105
Cable length m 1,5 (opt. 5)
Installation
forward
temp.-sensor
by direct immersion or by immersion sleeves (in case of existing measuring points )
return
temp.-sensor
by direct immersion or by immersion sleeves (in case of existing measuring points);
optionally integrated in flow sensor
ZENNER International GmbH & Co. KG declares
that this product with the number of the EC type-
examination certicate DE-12-MI004-PTB010
complies with the requirements of the EC direc-
tives 2004/22/EC (Measuring instruments direc-
tive) and 89/336/ EEC (electro-magnetic
compa-
tibility).
Electro-magnetic interference
zelsius® C5-ISF fulls the national and interna-
tional requirements for interference resistance.
To avoid malfunctions due to other interfer-
ences, do not install uorescent lamps, switch
cabinets or electric devices such as motors or
pumps in the immediate vicinity of the meter
(minimum distance 1 m). Cables leaving the
meter should not be laid parallel to live cables
(230V) (minimum distance 0.2 m).
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 service life. Repairs can only be made by the
manufacturer.
The most up-to-date information about this pro-
duct and of our installation notice can be found at
www.zenner.com.
Pulse inputs and outputs
(optional)
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 as-
sociated 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
Eingang
GNDGND
Ausgang
In 1…3 Out 1…3
Eingang
GN
DG
ND
Ausgang
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 rmly 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
Loading...