Frequency Selective Multimeter
The 4031 is a hand held frequency selective
multimeter used to measure
terrestrial potential profiles as well as Step &
Touch voltages in and around
an electrical grid
such as a substation.
An added feature is the multimeter's ability to
perform current branch
readings with either a Lem Flex or type 545 Rogowski
The 4031 combines the features of the 4025 series of multimeters such as:
- 40Hz to 70Hz frequency selection in increments if 0.1Hz to 1Hz
- On board GPS for cable-less phase synchronization
- Flex LEM, 4031-L or Rogowski 4031-R version available
- Human or High impedance voltage measurement
To find out more please contact us at
Ratio accuracy -
under rated voltage
and load conditions
Test CVT's with up to 500 VA and at any Power Factor.
Able to test CVT rated to 500kV.
The Red Phase 590K has no equal in the portable
class, of this we are certain.
The 590K is the result of years of intense research
development of the most accurate portable CVT analyzer
on the planet.
Using highly complex software modelling combined with
specialized Digital Signal Processing and advanced
computer hardware, the 590K has the ability to
characterize even unknown CVT models to a ratio error of
0.25% worst case but generally a CVT ratio error of 0.05% or better is
To find out more please go to the CT & CVT Instrument
Transformer Testing link in the test equipment list on the left
of the screen.