Heat / Cooling meter integrator PolluTherm
Installation and operation instructions
M H 6111 INT PolluTherm, page 5
6.1 Connection of the flow sensor
The pulse cable is connected to terminal 10 (+)
and 11 (-). Polarity can be disregarded for flow
sensors with Reed contacts. An extension of the
connection cable is only permitted with shielded
cable.
6.2 Connection of the temperature sensors
PolluTherm can be operated with temperature
sensors Pt 500. The type which has to be used is
marked on the front of the calculator housing. The
recommended minimum distance from sources of
electromagnetic interference (generators,
frequency converters, ...), as well as from cables
carrying > 230 V, is 0.3 m. Two-wire or four-wire
connection is possible (to extend the length of the
temperature sensor cables by max. 23 m, cable
type: e. g. I-Y(St)Y 2x2x0,8, minimum core size:
0,5 mm², see also chapter. 12). Allocation as
follows:
Supply pipe temperature sensor (warmer line):
Connection type
Terminals
Two-wire connection
5, 6
Four-wire connection
5, 6 and 1, 2
Screening, if any
Return pipe temperature sensor (colder line):
Connection type
Terminals
Two-wire connection
7, 8
Four-wire connection
7, 8 und 3, 4
Screening, if any
Start by removing the appropriate preshaped
rubber part from the integrator housing (see figure
7). Then pull the cable through the hole in the
preshaped rubber part and provide strain relief by
using one of the supplied cable binders (see
figure 8). Now connect the cores to the
corresponding terminals and replace the
preshaped rubber part (see figure 9).
Figure 8: Example of two-wire connection with a
shielded cable
Figure 9: Cores connected, preshaped rubber part
replaced
Temperature sensor types which are supplied
from the factory with already attached preshaped
rubber parts (see figure 10) can be placed directly
into the integrator housing – it is not required to
use a cable binder.
Figure 10: Cable incl. already attached preshaped
rubber part
Proceed accordingly when using a four-wire
connection
(see figure 11 and chapter 12).
Figure 11: Anschlussbeispiel eines
Figure 11: Example of four-wire connection with
an unshielded cable
7. Exchange of the integrator module
After expiry of the certification or the operating life
it is sufficient to exchange the calibrated module
within the casing. For this purpose open the
integrator lid and remove the fastening screw
(screw driver Torx 6) above the LC display (see
Cable binder for
strain relief
Cable binder for
strain relief
