HT instruments SIRIUS89N User Manual

Page 73

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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

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