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AVO / Multi-Amp PAM-275R Digital Phase Angle Meter
The AVO / Multi-Amp PAM-275 Digital Phase Angle Meter
was designed specifically for electrical system applications. It is a
battery-operated or line-powered instrument. Incorporating two identical
isolated input circuits, the unit permit precision measurements to be made
of the phase angle relationship between two currents, two voltages or a
voltage or a voltage and a current.
The AVO / Multi-Amp PAM-275 Digital Phase Angle Meter is
commonly used in testing and calibrating protective relays, phasing out
circuits, checking differential relay schemes, checking polyphase watthour
and varhour meter installations and verifying the polarity of CTs and PTs.
Features:
- Direct digital reading
- Broadband current ranges
- Broadband potential ranges
- Excellent resolution
- Highly accurate
- Universal: measures I to I, E to E, E to I
- Long battery life
- Isolated input circuits
- Harmonic immunity: accurate reading with up to 30%
harmonic distortion
- Not frequency-sensitive: accuracy not dependent on
precise 50- or 60-Hertz inputs
- Rugged: sturdy design for typical field use
- Out-of-range indication: automatic indication given
when inputs are above or below rated ranges, eliminating need for
instruments to monitor inputs
- Hold feature
- Not influenced by position
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