2606B System SourceMeter® Instrument Reference Manual
Section 2: General operation
2606B-901-01 Rev. B / May 2018
2-55
Hazardous voltages may be present on the output and guard terminals. To prevent electrical
shock that could cause injury or death, never make or break connections to the 2606B while
the output is on. Power off the equipment from the front panel or disconnect the main power
cord from the rear of a System SourceMeter
®
instrument before handling cables connected to
the outputs. Putting the equipment into standby does not guarantee the outputs are not
powered if a hardware or software fault occurs.
Maximum floating (common mode) voltage for a SMU is 250 V. Exceeding this level could
damage the instrument and create a shock hazard. See
(on page 2-63) later in
this section for details on floating the SMUs.
The input/output connectors of the System SourceMeter
®
instrument are rated for connection
to circuits rated Measurement Category I only, with transients rated less than 1500 V
PEAK
. Do
not connect the 2606B terminals to CAT II, CAT III, or CAT IV circuits. Connections of the
input/output connectors to circuits higher than CAT I can cause damage to the equipment or
expose the operator to hazardous voltages.
To prevent electric shock and/or damage to the System SourceMeter
®
instrument, when
connecting to a source with a greater current capability than the 2606B, a user-supplied fuse,
rated at no more than 20 A SLO-BLO, should be installed in-line with the 2606B input/output
connectors.
Figure 27: Input/output connectors