TECHNICAL DESCRIPTION
Kamstrup 162M/382M
5512-1040 GB/05.2012/Rev. C1
16
The time is adjustable via the configuration program METERTOOL for kWh meter or via reading system. It is
possible to use daylight saving time with corresponding preprogramming of shifting dates, see more in section
10.2.4.
3.3.2
Backup
The meters can be supplied with either a non-rechargeable unit (battery) or a rechargeable type (supercap). The
backup time of the battery depends on the period of time the meter is without mains supply, and in addition, the
battery gives access to further functions such as display views despite lack of mains supply, see section 4.10 for
further information.
The lifetime of the backup unit also depends on the mains voltage supply to the meter and the ambient
temperature. For specifications, see also section 8.2.
3.3.3
Hour counter
As the RTC manage the date and time in the meter, an hour counter register manage the number of operating
hours of the meter, i.e. number of hours where main voltage are supplied to the meter.
3.4
Tariffs
The meter allows registration in eight tariffs for each energy type depending on configuration, see section 3.2.1.
The tariffs are active when at least one tariff-register has been selected in the display set-up. Do not forget to
select control type when activating tariffs.
The tariffs can be controlled in three different ways:
-
Via communication commands, e.g. from a module or via METERTOOL, or
-
Through the module’s I/O, or
-
Internally by means of time control via the RTC.
Module I/O controlled tariffs use the ports of the module connector for changing the tariffs, e.g. if a tariff control
module prepared for 230 VAC is connected to 230 VAC. The inverted function can also be selected.
Port 1:
Terminals 13 and 15
Port 2:
Terminals 33 and 15
Active tariff
Active tariff
inverted
0 VAC
0 VAC
T1
T4
230VAC 0 VAC
T2
T3
0 VAC
230VAC
T3
T2
230VAC 230VAC
T4
T1
Table 2: 230VAC - tariff control.
The tariff reading is updated in the display every 10 secs. The active tariff is displayed by readings T1..T8.
The time-controlled tariff is possible using the RTC to control the tariffs on the basis of a preprogrammed shifting
table.
The set-up of the meter’s configuration makes conflicts between control methods impossible as the choice of one
method automatically excludes the others.
3.5
Voltage quality measurement
The meter makes it possible to register/measure the voltage quality.
The voltage quality measurement consists of voltage measurement, registration of maximum and minimum
voltage, overvoltage and undervoltage as well as voltage failures. All registrations take place per phase.
