2
Installation manual
General information
With zelsius
®
C5-CMF 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 verification 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.
* optionally
Technical data flow sensor CMF
(Values for symmetrical temperature sensors installation)
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
24
30 / 60
50 / 100
Minimum flow qi vertically
l / h
24
30 / 60
50 / 100
Starting flow horizontally ca.
l/h
5
5
7
Pressure loss at qp
bar
<= 0,25 bar
Temperature range
°C
10°C <= θ
q
<= 90°C
Minimum pressure
(avoiding of cavitation)
bar
0,3
Measurement accuracy class
3
Connecting interface*
M60, IST, TE1
Nominal pressure
PS/PN
16
Nominal diameter
DN
depending on the connecting interface
Installation position
horizontally or vertically, no upside down installation
Installation
return flow optionally forward flow
Cable length up to calculator
m
1,2
Installation place temperature sensors
M10 x 1
Heat carrier
water
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 flow
by direct immersion or by immersion sleeves (in case of existing measuring points)
return flow
by direct immersion or by immersion sleeves (in case of existing measuring points);
optionally integrated in flow sensor
