...or select data sheets in PDF format from this list.

The AutoPhase Advantage

AutoPhase makes power transducer installation simple.

There are over 40 ways to wire up a 3 phase, 4 wire kW transducer. For example, reversing the orientation of a CT flips the output waveform, tricking ordinary watt transducers into thinking there is a 180 degree phase shift. Or if CT and voltage inputs are mismatched, the transducer thinks there is a 120 degree phase shift. Either way, you have a problem.

AutoPhase identifies the phases and polarity automatically and corrects for the error in software. This eliminates flashing "ERROR" lights, tedious and dangerous reconnecting of inputs. AutoPhase even tells you which CTs are reversed and which phases are mismatched!

AutoPhase is protected by US Patent 5,652,505

APO

Features

• Meter Grade Digital accuracy for reliable measurement.
• Advanced microprocessor running at 5 MIPS (faster than many PCs!) provides high-speed sampling, accuracy and flexibility impossible with traditional kW/kWH transducers.
• Accepts ProteCT Current Transformers with 0.333 V safe output... Eliminates need for costly shorting blocks
• Accepts traditional current output (5 Amp) CTs... reuse your existing CTs.
• Available as a bare circuit board (OEM Applications), Transducer Module for mounting in your panel or pre-mounted in a NEMA-1 panel. Get exactly what you need.

Specifications

APN

Features

• Direct Modbus Connection with no expensive interface.
• Patented AutoPhaseTM Technology corrects common wiring errors such as CT reversal and phase mismatch. This can save hours of field labor!
• Meter Grade Digital accuracy.
• Advanced microprocessor running at 5 MIPS (faster than many PCs!) allows measurement up to the 70th harmonic.
• Accepts ProteCT Current Transformers with 0.333 V safe output that eliminates need for costly shorting blocks. Also accepts traditional 5 Amp out CTs.

Specifications

Network Variables

Modbus Network Variables (All Values True RMS, 24 Points)