Satec Expertmeter EM720 Operation Manual page 8

Chapter 1 Introduction
Meter Features
8
Fast transient recorder
transient recorder (EM720T) detects impulsive and low
frequency oscillatory transient overvoltages with peaks up
to 2kV and durations of less than 20 microseconds.
Digital fault recorder
capable of recording current faults up to 50 amps.
Billing/TOU
• Class 0.2S IEC 62053-22 active and reactive energy
polyphase static meter
• Time-of-Use, 10 billing energy and maximum
demand registers, 8 tariff rates, 4 seasons x 4 types
of days, 8 tariff changes per day
• One-time easy programmable tariff calendar
schedule (embedded Hebrew holidays till 2039 for
Israeli customers), one-time programmable or
calendar scheduled daylight savings switch dates.
• Configurable triggering an end of billing period:
automatic monthly, local from the front display,
remote via communications
• Automatic recording billing energy, maximum
demand and cumulative maximum demand
registers for last 24 billing periods
• Automatic 120–day daily energy and maximum
demand profile
• Automatic 120-day/15-minute or 240-day/30-
minute energy load profile
• Easy access to the three previous billing periods
data via the front display
• Transformer/Line loss compensation – future
releases
Power Quality
• EN 50160 Power Quality (PQ) recorder: onboard
power quality analyzer; programmable limits; EN
50160 power quality event log, EN 50160
compliance statistics; EN 50160 harmonics survey
statistics
• Power frequency, voltage variations, rapid voltage
changes, IEC 61000-4-15 flicker, voltage dips,
interruptions, temporary overvoltages, transient
overvoltages, voltage unbalance, IEC 61000-4-7
harmonic and interharmonic voltage, mains
signaling voltage
• High-voltage fast transient recorder (EM720T);
impulsive and low frequency oscillatory transient
EM720 Power Quality and Revenue Meter
An optional high-voltage fast
An embedded fault recorder is