WATTrouter Mx - user manual
How to fit and setup the device
Page 32 from 82
t
p
– period of impulses
Imp
kWh
– number of impulses per kWh (see FB input settings)
The measurement dynamics depends on the impulse frequency. It may be very small for small
measured powers. The maximum measurable period of impulses is set to 15 seconds (at 1000
impulses per kWh it corresponds to an output of 0.24 kW). If the measured power is lower,
zero is displayed.
Energy – displays electric energy counted either with an:
a.
External current transformer when the ANDI function is set to power measurement or with
an:
b.
External meter with S0 impulse input when the ANDI function is set to S0 pulse counter. The
value is calculated using the following formula:
kWh
p
Imp
Imp
[kWh]
E
=
E[kWh]
Where:
E – final energy (this field)
E
p
– initial energy at the input (see FB input settings)
Imp – number of impulses registered by FB input since the moment the impulses were
connected to this FB input. These counter values are not displayed.
Imp
kWh
– number of impulses per kWh (see FB input settings)
Impulses are counted only if the controller is operating. It is only an auxiliary and informative
feature of the controller. Counted impulses are saved in the internal EEPROM memory every
hour. In case of a short time power supply failure these values should not be very different
from the actual reality. More frequent impulse saving is not possible due to technical reasons.
If these values do not correspond with the value shown on the display of the connected
energy meter, modify the field "Energy offset" to match the value of the energy meter, check
the "Reset energy"-field and press the Write button.
Temperature – displays the temperature measured by the corresponding ANDI input when the ANDI
function is set to NTC or PT1000.
Digital temp. sensors:
Temperature – displays the temperature measured by the corresponding sensor.
Other statuses:
Configuration/object name - it is used to set label to the facility or the current configuration. Text may
contain maximum of 16 characters in ASCII encoding.
Sunrise today – it displays time of sunrise for today. This time is calculated directly in the controller
based on the actual calendar date and the actual geographic location of the facility/building (see
"Geographic location" on the "Other settings" tab). The calculated time is converted to the current
local time based on configuration of the "Use summer time" and "Time zone" settings. The official
sunrise zenith, 90° 50' is used. Sunrise time is used to reset energy counters ("Supplied energy"-fields)
in the main window, provided that the applicable mode in the field "CombiWATT – Energy counter
reset" is selected.
Day of week – shows the current day of week, which is obtained from the controller date.
