Bulletin No. 3020IB9814
December 1998
2
Using POWERLOGIC application software, users can upgrade circuit
monitor firmware through either the RS-485 or front panel optical communi-
cations ports. This feature can be used to keep all circuit monitors up to date
with the latest system enhancements.
Some of the circuit monitor’s many features include:
• True rms metering (31st harmonic)
• Accepts standard CT and PT inputs
• Certified ANSI C12.16 revenue accuracy
• High accuracy—0.2% current and voltage
• Over 50 displayed meter values
• Min/Max displays for metered data
• Power quality readings—THD, K-factor, crest factor
• Real time harmonic magnitudes and angles
• Current and voltage sag/swell detection and recording
• On-board clock/calendar
• Easy front panel setup (password protected)
• RS-485 communications standard
• Front panel, RS-232 optical communications port standard
• Modular, field-installable analog and digital I/O
• 1 ms time stamping of status inputs for sequence-of-events recording
• I/O modules support programmable KYZ pulse output
• Setpoint-controlled alarm/relay functions
• On-board event and data logging
• Waveform and event captures, user-selectable for 4, 12, 36, 48, or 60 cycles
• 64 and 128 point/cycle waveform captures
• High-speed, triggered event capture
• Programming language for application specific solutions
• Downloadable firmware
• System connections
– 3-phase, 3-wire Delta
– 3-phase, 4-wire Wye
– Metered or calculated neutral
– Other metering connections
• Optional voltage/power module for direct connection to 480Y/277V
•
Optional control power module for connecting to 18–60 Vdc control power
• Wide operating temperature range standard (-25 to +70°C)
• UL Listed, CSA certified, and CE marked
• MV-90
TM
billing compatible
• Pre-configured data log and alarms
What is the Circuit Monitor?
(cont.)