User manual

PQM-702, PQM-703 Operating Manual
24
Starting the recording mode depends on how its configuration during the configuration of the
measurement point. There are three modes available:
 Immediate start - when recording begins immediately after pressing the button.
 start after detecting the first event - in such case the analyzer waits for the record-triggering
event. i.e. when the first of the parameters configured for the measurement point exceeds the
threshold triggering the event. While waiting for the event, the analyzer uses the status bar to
display the number of the measurement point alternately with the symbol of slope with an
arrow.
 start according to scheduled recording time. Screen 8/9 may be used to see the next scheduled
start and end of the recording process. At the same time the status bar displays the number of
measurement point alternately with the hourglass symbol. If all the scheduled times are over,
the recording process will be inactive (unavailable) and the status bar will display the number
of measurement point, alternately with the sinusoid symbol (meaning that only Live preview of
current mains values is possible).
The measurement point number, which is displayed in the upper left corner of the screen,
flashes once per second, while the device is in the recording mode,
Stopping the recording process:
 recording ends automatically as scheduled (if the end time is set), in other cases the user stops
the recording (using button or the software).
 recording ends automatically when all memory assigned to a measurement point on the memory
card is filled. In this situation, the display will show the number of the measurement point
alternately with the sinusoid symbol.
 the display will remain blank after the recording process is completed, if the user activated the
"sleep mode". Press any button to turn the screen on and to display the last screen (if the key
lock is off) or the screen requesting the code for unlocking the keypad (if the key lock is on).
2.7.3 Approximate recording times
The maximum recording time depends on many factors such as the size of the allocated space
on a memory card, averaging time, the type of system, number of recorded parameters, waveforms
recording, event detection, and event thresholds. A few selected configurations are given in Tab. 3.
The last column gives the approximate recording times when 2 GB of memory card space is allo-
cated to a measurement point. The typical configurations shown below are based on the measure-
ment of the N-PE voltage and I
N
current.
Tab. 3. Approximate recording times for a few typical configurations.
Configuration
type/
recorded param-
eters
Averaging
time
System
type
(current
measure-
ment on)
Events
Event wave-
forms
Waveforms
after averag-
ing period
Approximate
recording
time with
2 GB allo-
cated space
according to EN
50160
10 min
3-phase
wye

(1000 events)

(1000 events)
60 years
according to the
"voltages and
currents" profile
1 s
3-phase
wye
270 days
according to the
"voltages and
currents" profile
1 s
3-phase
wye

4 days
according to the
"Power and har-
monics" profile
1 s
3-phase
wye
23 days