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Meter Comparison Chart

As with most highly engineered products, the price to feature differences between models can be very important in the decision making process.

The important thing to note with the Power Measurement line of power meters is that the available features increase at a faster rate than the price. This enables you to get the most bang for your buck.

Compare Meters Side by Side

You may be interested in a little more detail about the feature differences between the various meters available. Using the table below, you can compare the meters feature for feature, side by side.

Power, Energy, & Demand 7300 7330 7350 7550 7650 8650A 8650B 8650C
Voltage/Current: per phase, average,unbalance Yes Yes Yes Yes Yes Yes Yes Yes
Power: real, reactive, apparent, power factor, frequency Yes Yes Yes Yes Yes Yes Yes Yes
Power: real, reactive, apparent, power factor, frequency Yes Yes Yes Yes Yes Yes Yes Yes
Demand: block, sliding window, thermal, predicted Yes Yes Yes Yes Yes Yes Yes Yes
Power Quality Analysis 7300 7330 7350 7550 7650 8650A 8650B 8650C
Sag/swell monitoring Yes Yes Yes Yes Yes
Symetrical components: zero, negative, positive Yes Yes
Transient detection, microseconds 17 17
Harmonics: (individual, even, odd, total) up to 15th 15th 31st 63rd 63rd 63rd 63rd 63rd
Sampling rate, maximum samples/cycle 32 32 64 256 1024 1024 1024 256
Flicker, harmonics, etc.: to EN50160, IEC 61000-4-30 Class A Yes Yes
Data & Waveform Logs 7300 7330 7350 7550 7650 8650A 8650B 8650C
Triggered by setpoint, schedule, or external signal Yes Yes Yes Yes Yes Yes Yes
Sequence-of-Event log, variable log depth Yes Yes Yes Yes Yes Yes Yes
Minimum/Maximum logs for any parameter Yes Yes Yes Yes Yes Yes Yes
Historical logs, maximum channels 32 96 320 640 640 640 640
Waveform logs, maximum cycles 48 96 96 96 96 96
Timestamps, resolution in seconds 0.001 0.001 0.001 0.001 0.001 0.001 0.001
GPS time synchronization Comm Comm IRIG-B IRIG-B IRIG-B
Communication Ports & I/O (maximum) 7300 7330 7350 7550 7650 8650A 8650B 8650C
RS232/485 ports 1 1 1 1 1
RS485 only ports 1 2 2 1 1 1 1 1
Ethernet 10/100BaseT 1 1 1 1 1 1 1 1
Ethernet Fiber 10/100BaseFL 1 1
Infrared optical ports 1 1 1 1 1 1 1 1
Modem (on-board) 1 1 1 1 1 1 1
Modbus RTU on serial, Ethernet,
modem, infrared ports
Yes Yes Yes Yes Yes Yes Yes Yes
Modbus TCP on Ethernet ports Yes Yes Yes Yes Yes Yes Yes Yes
Modbus Master Yes Yes Yes Yes
DNP 3.0 (all ports) Yes Yes Yes Yes Yes Yes Yes Yes
EtherGate: direct data transfer from Ethernet to RS-485 Yes Yes Yes Yes Yes Yes Yes
ModemGate: modem access for other devices via RS-485 Yes Yes Yes Yes Yes Yes Yes
Analog inputs 4 4 4 4* 4* 4* 4* 4*
Analog outputs 4 4 4 4* 4* 4* 4* 4*
Digital status/counter inputs 4 4 8/16* 8/16* 8* 8* 8*
Digital relay outputs (control/pulse)
*When using optional I/O card or external I/O box
4 4 4 7 7 4* 4* 4*
Setpoints, Alarming, & Control 7300 7330 7350 7550 7650 8650A 8650B 8650C
Setpoints, minimum response time 1 sec 1 sec 1/2
cycle
1/2
cycle
1/2
cycle
1/2
cycle
1/2
cycle
Math, logic, trigger, log, linearization formulas Yes Yes Yes Yes Yes Yes Yes
Single & multi-condition alarms Yes Yes Yes Yes Yes Yes Yes
Remote alarm notification Yes Yes Yes Yes Yes Yes
Revenue 7300 7330 7350 7550 7650 8650A 8650B 8650C
ANSI C12.16 accuracy compliant Yes Yes Yes Yes Yes Yes Yes
ANSI C12.20 0.2 accuracy compliant Yes Yes Yes Yes Yes
MV-90 support Yes Yes Yes Yes Yes Yes
Multi-year scheduling: hourly activity profiles Yes Yes Yes Yes Yes Yes
Tamper protection via hardware& software Yes Yes Yes Yes Yes Yes Yes
Transformer/line loss compensation Yes Yes Yes Yes Yes Yes