MI 2892 Power Master
Operating the instrument
98
5
th
column -
Du–ation
Minimal alarm duration. Triggers only if threshold is crossed for a
defined period of time.
Note: It is recommended that for flicker measurement, recorder is set to
10 min.
Table 3.91: Keys in Alarm setup screens
ADD
Adds new alarm.
REMOVE
Clears selected or all alarms:
EDIT
Edits selected alarm.
Enters or exits a submenu to set an alarm.
Cursor keys. Selects parameter or changes value.
Cursor keys. Selects parameter or changes value.
Confirms setting of an alarm.
Returns to the “MEASUREMENT SETUP” submenu.
3.21.4
Signalling setup
Mains signalling voltage, called “ripple control signal” in certain applications, is a burst of signals, often
applied at a non-harmonic frequency, that remotely control industrial equipment, revenue meters, and
other devices.
Two different signalling frequencies can be defined. Signals can be used as a source for the user defined
alarm and can also be included in recording. See section 3.21.3 for details how to set-up alarms. See
section 3.14 for instructions how to start recording.
Figure 3.68: Signalling setup screen
Table 3.92: Description of Signalling setup
Nominal voltage
Indication of type (L-N or L-L) and value of nominal voltage.
SIGN. 1 FREQUENCY
1
st
observed signalling frequency.
F1
F2
F3
ENTER
