IDEAL 61-830, Инструкция по эксплуатации, Страница: 4 / 34

Using the default thresholds, a voltage sag of 68V for 2.5 Cycles is logged as fol-
lows:
The Event Detail screen displays the trigger surpassed, the event magnitude and
duration, and the data and time of the event. The magnitude displayed is the worst
case magnitude over the duration of the event.
Voltage Sags
Sags are sub-classed into Minor and Major events. Minor Sags are sub-classed
into Minor 1 and Minor 2. Major Sags are sub-classed into Major 1,2,3, and 4.
Pre-loaded triggers increase in severity (Major 3 > Major 2).
SAG Event On-screen display
Minor 1 MIN1
Minor 2 MIN2
Major 1 MAJ1
Major 2 MAJ2
Major 3 MAJ3
Major 4 MAJ4
Loss LOSS
Voltage Swells
Swells are classified into Swell 1, 2 and 3. (Swell 2 > Swell 1)
Swell Event On-screen display
Swell 1 SWL1
Swell 2 SWL2
Swell 3 SWL3
When 2 triggers are set to the same magnitude and duration, the lower numbered
event will log. (Used when resolution is not needed). Example: If Swell 1 trigger =
Swell 2 trigger then an event logs as Swell 1.
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chronological log of all event types. Before viewing event details, it is important to
understand event classifications and thresholds.
A note on battery life:
Due to the nature of voltage monitoring, the unit does not have an auto power off
option. The VPM uses the power of the circuit when monitoring. Check battery life
prior to leaving unit for extended periods of time. CONFIRM THE UNIT IS OFF
PRIOR TO STORING.
Voltage Event Classifications:
Events are categorized into Sags (SAG), Swells (SWL), Impulses (IMP), %Total
Harmonic Distortion (THD), Loss (LOSS) and Start time (RUN). To make data easier
to interpret, the VPM sub-classes events according to magnitude and duration.
Each classification has a trigger associated with it. A trigger is comprised of a mag-
nitude threshold and a duration threshold. There are 6 SAG triggers and 3 Swell
triggers are available. Monitoring standards are sets of pre-loaded event triggers
derived from international voltage standards. 15 monitoring standards available
along with a custom option to program unique triggers.
Example:
Only events beyond the set thresholds are logged. All other voltage fluctuations are
ignored:
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1 µsec 1 msec 20 msec 0.5 sec 10 sec
3 msec
Steady
State
0
40
70
80
100
120
140
200
300
Percent of Nominal V
oltage (Magnitude)
How Long Event Lasts (Duration)
Equipment OK
Equipment Problems
Swell 1
Swell 2
Minor 1
Minor 2
Major 1
LOSS
ITIC Curve (Representation)
Swells
Sags
.001 c .01 c
1 c
10 c
100 c
User Programmed nominal
voltage 100 to 240 VAC
Less than 15 V actual
Unplug VPM and press any
key to display REVIEW
screen Press Enter to display Sag
Event Log Press right arrow to display
event Detail
1 Trigger surpassed
2 Event Magnitude and
duration
ENTER
X
1
2
ND 5790-3 61-830 Instructions 10/24/07 4:12 PM Page 7