Phase 2500A User Manual

Phase Angle Voltmeter

Model 2500A

Graphical, Color Display
Isolated inputs

0.020º Phase Accuracy

0.001° Phase Resolution
On board reference generator
80 dB harmonic rejection
Wide frequency response
IEEE-488, USB

Description

The Model 2500A PAV replaces the very popular Model 2500. With the latest and
most advanced DSP technology, this instrument provides a new level of
performance and user friendliness. In addition, the 2500A PAV is considerably less
expensive than other “traditional” PAVs. By keeping classic measurements, at-
the-touch-of-a-button, the Model 2500A behaves more like an instrument and less
a computer. The unit is extremely easy to use yet contains a host of features and
performance characteristics that set it apart from all others.

Specifically targeted at Synchro/Resolver and LVDT/RVDT applications this
instrument makes measurements of Phase Angle, In-Phase, Quadrature,
Fundamental and Total a breeze. All parameters can be displayed simultaneously
on a bright color high resolution graphical display. The Model 2500A even
includes a built-in oscilloscope for viewing input waveforms.

Isolated inputs allow null, ratio and gain measurements of key parameters and a
reference offset facilitates bridging measurements. A sensitive null meter is also
included. An optional on-board reference generator has enough power to drive
most LVDT/Synchro references. This feature can eliminate the need for an
external reference; although the unit can be used with an external generator if so
desired. The Model 2500A also includes pre-defined LVDT/RVDT functions such
as (A-B)/(A+B) and (A-B)/Ref.

But the 2500A PAV goes further. By using an external shunt, it can also, measure
power, power factor, THD, harmonics, and can be used to calculate impedance.

Typical Displays

Multifunction Display

In Phase with null meter

Oscilloscope

Specifications

Channels 2, galvanically isolated
Measurement Total, Fundamental, In-phase,

Quadrature, Ratio, Frequency and
Phase plus Null Meter

Voltage Input Ranges

Resolution
Phase Input Ranges 0.00º - 360º or ±180º
Frequency Range, Total 20Hz to 2MHz
Frequency Range, Fundamental Modes 20Hz to 100KHz
DC Recorder Output: +/- 10VDC full scale

20mV rms to 630V rms in ½ decade
ranges or Autoranging
5 digits voltage, 6 digits phase