Specifications

July 2010
BLACKBOX PORTABLE QUICK REFERENCE GUIDE
III—6
On Site Setup | Elspec
Attach Current Clamps
The BLACKBOX Portable provides 4 AC and 1 AC/DC Current Probe
Sockets.
The AC Current Probe Sockets are marked as I1-I4.
To attach Current Clamps:
1. Connect each current phase clamp (neutral if applicable) to its
corresponding Current Probe Socket.
2. Connect the measurement end of current clamp to the measured power
source.
The current clamps are calibrated from the factory
for a specific phase. Please make sure that you pay
attention to the phase connections.
The current clamps convert current to low voltage.
Refer to Circuit Topologies on page V—1 to interface
the device with your circuit topology.