Custom DC Probes Info
With the BLACKBOX Portable you may use any clamp in addition to the Custom & Other Clamps
supplied by Elspec. This section will allow you to set the Voltage/Current Ratio & the Hardware
Range for any custom and or Elspec Custom Clamp. Ensure that you set the ratio & range is set
according to the Clamp Manufacturer's Specifications & not just the Ratio & Range.
TABLE - V/I RATIOS PORTABLE BLACKBOX CUSTOM CLAMPS:
The 3-Phase AC flexible current clamps are now obtainable from Elspec as Optional Accessories
with the BLACKBOX Portable. The clamps are capable of measuring currents up to 3000 Amps at very
high frequencies of 10 kHz. The clamps are supplied either as 3-flexible current probes / 1-flexible
current probe. Controlled by a Rotary-Switch with 1000 hour battery life, the probes provide a linear
voltage output replicating input waveforms current ranges (determined by the user) of 30, 300, or
3000 Amperes.
The table below outlines the CT Ratio's for the Portable BLACKBOX Custom Clamps:
Rotary-Switch Current Setting
SET THE V/I RATIOS & HARDWARE RANGE FOR THE CUSTOM CLAMPS:
Once you have completed the Current Probes Info section, you may proceed into setting V/I
Ratios & Hardware Range for any plugged in Clamps. As mentioned previously the clamps are
automatically be recognized once plugged in, and as such any Custom clamp will appear in the
Custom DC Probes Info section (marked in Blue):
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