Instrument Interface - Arbiter Systems Portable Power Sentinel 933A Operation Manual

Input Current
Range (3P/1P) 1 – 20 Arms, maximum - per element
Low range 1 mA – 1 A
Overrange 23.5 Arms, nominal (maximum continuous input
current: 20 Arms per element).
Volt-Amps, Watts, Volt-Amps-Reactance
Range Product of rated voltage and current ranges and
number of elements.
Compensating Constants and Ratios
CT and PT Nominal ratios, magnitude and phase compensa-
tion, CT uses 12-point non-linear interpolation.
Transformer Both iron and copper loss.
Input Frequency Range
Range 45
Harmonics 3 kHz
Input Connector Ratings
Voltage Safety Banana, color-coded per phase
Current 5-way binding post, including safety banana
Insulation 400 Volts, nominal, to neutral/chassis, surge
voltage class III
600 Volts, nominal, to neutral/chassis, surge
voltage class II
8.3

Instrument Interface

Front Panel Indicators and Controls
Keyboard 30 keys, for status and configuration; including
5 soft function, 7 dedicated function, 5 cursor
control, power on/off and 12-button numeric key
pad
Display Graphical LCD
backlighted
65 Hz, for specified accuracy.
3 x 3.9 inches, 240 x 320 dpi,
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