Heat / Cooling Meters Calculator Unit
PolluTherm can be combined with PolluFlow
Installation and Operating Instructions
MH 6114 INT PolluTherm, Page 7
Connection AN130/SAN130/FAN130, other
flow sensors with reed contact
(e. g. WPD-FS 130)
Function Clamp Colour
Imp (+)
10 white/other
Imp (-)
11
brown/other
Connection HRI-Mei FS
Function Clamp Colour
Imp (+)
10 white
Imp (-)
11
grey
Table 10: Connection diagram
6.2 Connecting the Temperature Sensor
PolluTherm can be operated using temperature
sensor Type Pt 500. The type to use is given on
the front of the calculator unit housing. For
electro-magnetic sources of interference
(generators, frequency converters etc.) as well as
for cables that carry
≥
230 V, we recommend a
minimum distance of 0.3 m. The connection can
be carried out either in two-wire or four-wire
system (for extension of the cable for the
temperature sensor up to max. of 23 m, cable
type: e.g. I-Y(St)Y 2x2x0.8, Minimum cross-
section: 0.5 mm², also refer to Section 12). The
following allocation applies:
Supply temperature sensor (warm pipe):
Type of connection
Terminals
Two-wire system
5, 6
Four-wire system
5, 6 and 1, 2
Pos. available shielding
Return temperature sensor (cooling pipe):
Type of connection
Terminals
Two-wire system
7, 8
Four-wire system
7, 8 and 3, 4
Pos. available shielding
To connect the cable for the temperature sensor,
initially remove the respective moulded rubber
part from the calculator housing (refer to
Figure 7), then lead the cable through the hole in
the moulded rubber part and establish strain relief
using a cable-tie (refer to Figure 11). Now connect
the wires to the appropriate terminals and replace
the moulded rubber part (refer to Figure 12 and
13).
Figure 12: Example of the connection of a
shielded cable in two-wire system
Figure 13: Wires connected, moulded rubber part
again used
For types of temperature sensors that are
supplied with the moulded rubber part attached to
the cable (refer to Figure 14), these can be
directly inserted into the calculator unit housing. In
this case, the attachment of a cable-tie is not
required.
Figure 14: Cable with moulded rubber part already
attached
Cable-tie for strain
relief
