Operation Manual

MI 2092 Power Harmonics Analyser Section I General information
13
3.1.3 Reference conditions
AC voltage for power measurements 0.02 U
n
… U
n
AC current 0.02 I
n
… I
n
Power factor four quadrants (1.00
cap
… 0.00 … 1.00
ind
)
Frequency 45 … 65 Hz
Waveform Sinusoidal AC voltage and current
Distortion factor < 2 %
Auxiliary power supply
230 V ± 10 %
Ambient temperature
23 °C ± 3 °C
Humidity
60 % ± 15 %
3.2. Outputs
3.2.1. Communication
RS232 serial interface for connection to a PC, fully opto isolated. Selectable
2400 - 57, 600 baud. 9 pin D-type connector. Communication cable supplied.
3.2.2. Display
Graphic Liquid Crystal Display with LED backlight, 160 x 116 dots resolution.
3.3. Power supply
3.3.1. AC power supply
Operating range: 230 V AC + 10 % -20 %, overvoltage category III, 45 - 65 Hz, 8 VA
Fuse: F2 T100 mA (250 V in the battery compartment)
3.3.2. DC power supply
Internal 4 x 1.2 V NiCd or NiMh rechargeable IEC LR14 batteries provide full operation
for up to 5 hours.
Internal battery charger, charging time approx. 10 hours.
Fuse: F1 T630 mA (250 V in the battery compartment)
3.4. NON - volatile memory
2048 Kbytes SRAM, battery backed.