Heat / Cooling meter integrator PolluTherm
Installation and operational instructions
M H 6111 INT PolluTherm, page 12
At an automatic switch-over point this PolluTherm
version switches over between metering heating
and cooling energy. The switch-over point to cool
metering is preset in the factory to:
supply flow temperature < 25 °C
and
negative temperature difference > - 0,15 K
Conditions to switch back to heat metering:
supply flow temperature > 25 °C
and
positive temperature difference > 0,15 K
If required this switch-over point can be changed
on site with the service software MiniCom, version
3.6.0.65 or higher.
11.9 Optional integrated data logger (ordering
option)
When the option is built in the housing lid is
additionally labeled with „data logger“.
The integrated data logger stores consumption
values and instantaneous values (power, flow
rate, temperatures) during a selectable time
interval (3 to 1440 minutes). The logger data can
be read out via the optical interface M-Bus or
Mini-Bus with the service software MiniCom
version 3.6.0.65 or higher. The time interval
(factory setting: 60 minutes) can also be changed
with MiniCom.
For PC connection use either an optical data
coupler (see chapter 11.1.) or a USB plug-in unit
(order number: 68504688).
11.10 Retrofitting from battery unit to power
supply unit
Before retrofitting please note the following
instructions and perform in chronological order:
Before you remove the supply battery from
the integrator the integrated module has to
be removed from the integrator. Unscrew
only the screw on the right side under the
KK1 seal (user seal) of the plastic cover. Pull
the integrated module forward from the
connection. The seals in the middle and on
the left side may not be removed (loss of
calibration)!
Insert the backup battery AA 3,6V
(68504900) on the backside of the integrator
module. The battery is needed for the backup
date and for the short-term emergency use in
case of power failure.
Remove the main battery (D) and plug in the
mains module.
For a detailed description please refer to
installation manual MH 1122.
12. Information on the extension of
temperature sensor cables
The temperature sensors for PolluTherm are
available with platinum resistor elements in:
Pt 500 (500 Ohm at 0 °C) Standard
For each integrator two temperature sensors are
required. Therefore such sensors are paired
regarding on their resistance and supplied as
calibrated instruments. This ensures that incorrect
temperature difference in the heating and/or
cooling system will not be registered because of
different characteristic curves of temperature
sensors and cable resistance.
In some systems it is often necessary to extend
one or both temperature sensors. The length of
the temperature sensor cables can be extended
by max. 23 m. In order to compensate for the
additional cable resistance so-called four-wire
technology is applied. Use a four-wire cable (e.g.
I-Y(St)Y 2x2x0.8,
minimum cable size: 0.5
mm²
).
It is possible
to extend only one cable
to extend both cables; they do not
necessarily need to have the same length
The extension of the temperature sensors may be
done with the junction box that is offered from
Sensus (see figure 15, order number: 88599001,
installation manual MH 6105).
Figure 15: Connection diagram
