HT instruments SIRIUS89N User Manual
Page 73

SIRIUS89N
EN - 71
Symbols Description
Advised
settings
START:MAN
The recording of all the selected parameters will start at 00
seconds after pressing
START/STOP (see chapter 10.1).
☺
STOP:MAN
The recording of all the selected parameters will be interrupted
manually by pressing
START/STOP (see chapter 10.1).
☺
START:AUTO
STOP:AUTO
The recording of all the selected values will be started / interrupted at
the set dates and times. In order to start the recording the user will
have to press START/STOP to set the instrument in Stand-by mode
until the start date and time previously set (see chapter 10.1).
INT. PERIOD
The value of this parameter determines every how many seconds
the values of
all the selected parameters will be memorised
(see chapter 16.13.1). Available choices:
5sec,10sec,30sec,1min,2min,5min,10min,15min,30min,60min.
15min
☺
ON = the instrument will record the values of the selected
voltage and current harmonics.
☺
HARM REC.
OFF = the instrument
will not record any voltage or current
harmonic selected
ON = the Instrument will record Voltage Anomalies (voltage Sag
and Surge) (see paragraph 16.10)
☺
ANOM REC.
OFF = the instrument
will not record any voltage Sag and Surge
V1
Voltage RMS value
☺
V1
THD, DC, 01...49
Voltage Total Harmonic Distortion, DC Component, 01..49
Harmonics respectively
☺
THD,01,03,05,07
Vref
(only if ANOM. REC flag
has been set ON)
RMS reference value for Voltage used in Voltage Anomalies
detection (Voltage Sag and Surge). The Reference is:
a) Voltage Phase to Neutral for Single Phase and 4 wires three
phase system
b) Voltage Phase to Phase for 3 wires three phase system
☺
Single phase:
230V
3 Phase system:
3 wires:
400V
4 wires
230V
LIM+, LIM-
(only if ANOM. REC flag
has been set ON)
High and Low Voltage Percent threshold used in Voltage
Anomalies detection (Voltage Sag and Surge). These parameters
can be adjusted in range 3%
÷ 30% (step 1%).
Example: Three Phase System 4 wires.
Vref = 230, LIM+= 6%, LIM-=10% =>
High Lim = 243.8V, Low Lim = 207.0V
The Instrument will detect a voltage Anomalies if the RMS
Voltage Values (calculated every 10ms) beyond the above
calculated thresholds (see paragraph 16.10.
☺
+6% / -10%
I1
Current RMS value.
☺
I1
THD, DC, 01..49
Current Total Harmonic Distortion, DC Component, 01..49
Harmonics respectively
☺
THD,01,03,05,07