Keysight B1500A User’s Guide, Ed ition 14 3- 35
Installation
Mounting Connectors
To Connect SMU Output
The SMU output connection examples are shown in Table 3-8.
WARNING There are potentially hazardous voltages (± 200 V for HPSMU, and ± 100 V for
MPSMU/HRSMU) present at the Force, Sense, and Guard terminals.
To prevent electrical shock, do not expose these lines.
Before turning the instrument on, connect the Interlock terminal to an
interlock circuit.
Before you touch any connections to these terminals, turn the instrument off,
disconnect the power cable, and discharge any capacitors.
CAUTION Never connect the Guard terminal to any output, including circuit common, chassis
ground, or any other guard terminal. Doing so will damage the SMU.
NOTE
Low-Noise Coaxial Cable
For the extended measurement paths over the connector plate, use low-noise coaxial
cable (Keysight part number 8121-1191). This cable can maximize the guard effects
and minimize the impression of the external noise.
Figure 3-15 shows the cutting example of this cable. Key point is the isolation
between the conductive layer and the center conductor. So, cut and trim the end of
the cable as shown in this figure by using a cutter and so on.
Figure 3-15 Coaxial Cable Cutting Example
WARNING Wrap an insulator around the naked conductors of coaxial cable to avoid
touching it.
Insulator (black)
Outer conductor
(for Guard signal)
Insulator (clear)
Conductive layer (black)
Center conductor
(for Force/Sense signal)
approx. 10 to 15 mm
min 2 mm
Cover here using sleeve
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