Satec Expertmeter EM720 Operation Manual page 10

Chapter 1 Introduction
10
• OR/AND logic, extensive triggers, programmable
thresholds and delays, relay control, event-driven
data recording
• 8 digital counters for counting pulses from external
sources and internal events
• 4 programmable timers from 1 cycle to 24 hours for
periodic recording and triggering operations on a
time basis.
Multi-functional Power Meter
• High-Class 3-phase Power meter: true RMS, volts,
amps, powers, power factors, unbalance, and
neutral current
• Demand Meter: amps, volts, harmonic demands,
block and sliding power demands
• Harmonic Analyzer: up to 50th harmonic volts and
amps; fundamental volts, amps, power and power
factor, phasor, symmetrical components
Time and Clock
• High-accuracy real-time clock with a lithium backup
battery
• 1-ms satellite-synchronized clock option (IRIG-B
time-code input)
• One-time programmable or calendar scheduled
daylight saving time (DST) switch dates,
configurable DST start and end time
Display
• Easy to read high contrast graphical 128x32 pixel
LCD display with backlight
• Multi-page data display with auto-scroll; time,
billing, instrumentation and service data
• Menu-driven setups
Digital I/O
• Four embedded digital inputs with 1 ms scan time
• Replaceable 2DI/2DO expansion I/O modules with
1/2 cycle scan/update time
Memory
• 8 Mbyte flash memory for long-term billing, event,
waveform and data recording
EM720 Power Quality and Revenue Meter