MTR-3
Installation Instructions
DEIF A/S
Page 23 of 51
Alarms
Alarms are used for alarming exceeded set values of the measured quantities.
Alarms setting
MTR-3 supports recording and storage of 16 alarms in two groups. For each group of alarms, a
time constant of maximal values in thermal mode, a delay time and alarm deactivation hysteresis
can be defined.
Quantity, value (a current value or a MD – thermal function) are defined for every individual alarm.
Reset operations
Reset energy counters (E1, E2, E3, E4)
All or individual energy meters are reset.
Reset MD values
Current and stored MDs are reset.
Reset the last MD period
Current MD value is reset.
Reset alarm output
All alarms are reset.
New values of alarms are calculated in percentage at the modification of the
connection settings. If used voltage, current range is changed, the limit values
of alarms will change proportionally.
