Model 6487 Reference Manual Measurement Concepts and Connections 2-11
Model 8009 resistivity test fixture
This test fixture allows volume resistivity in the range from 10
3
to 10
18
¾-cm and surface
resistivity in the range from 10
3
to 10
17
¾/sq. Features include:
• A 3-lug triax connector and dual binding posts make connections to the
Model 6487 simple.
• Guarded electrodes that can accommodate samples up to 1/8” thick and 4” x 4”.
• Safety Interlock: When properly connected to the Model 6487, the V-source goes
into a high impedance state when the test fixture’s lid is opened. Note that this
could leave a charged device in the fixture.
• Screw terminal on the test fixture for safety earth ground.
For typical connections to the Model 6487, refer to Figure 2-8.
Figure 2-8
Typical connections for measurements using the Model 8009 test fixture
120
INPUT
(CHA
WITH
CAT I
TRIGGER LINK
RS-232
MADE IN
U. S . A.
ANALOG OUT
DIGITAL I/O
INTERLOCK
505V
MAX
V-SOURCE OUTPUT
505V PK TO CHASSIS
LO HI
!
!
FUSE LINE
400mAT
(SB)
100 VAC
120 VAC
200mAT
(SB)
220 VAC
240 VAC
505V PK
505V PK
505V PK
METER
SOURCE
LID
INTERLOCK
TRIAX
XXX MAX
HI/LO
MAX INPUT
XXXXV
Model 8009
6517-ILC-3 Safety Interlock Cable
7078-TRX-3 Triax Cable
8607 Banana Plug Cables
Model 6487
Warning: Connect fixture ground to
safety earth ground using
safety ground wire supplied
with the test fixture.
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