Keithley 6512, Instruction Manual

Page: 20 / 156

General Information
1-4
Trigger cables
The following cables are recommended for connecting the
Model 6512 METER COMPLETE OUTPUT and EXTER-
NAL TRIGGER INPUT jacks to other instruments for exter-
nal triggering:
Model 7051-2 BNC Cable—A 0.6m (2 ft.) BNC to BNC ca-
ble (RG-58C) with a 50
Ω
characteristic impedance. Also
available in 1.5m (5 ft.) and 3.0m (10 ft.) lengths (Models
7051-5 and 7051-10 respectively).
Connectors and adapters
The following connectors and adapters are recommended for
use with the Model 6512:
• Model 237-TRX-T—3-slot male to dual female triax
tee adapter for use with Model 7078-TRX or other sim-
ilar 3-slot triax cables.
• Model 6171—3-slot male to 2-lug female triax adapter.
Useful for connecting 2-slot triax cables to the Model
6512 INPUT jack.
• Model 7078-TRX-BNC—3-slot male triax to BNC
adapter. Allows connecting BNC cables to the Model
6512 INPUT jack.
• Model 7078-TRX-TBC—3-lug female triax bulkhead
connector with cap for assembly of custom panels and
interface connections.
• Model CAP-31—Protective cap/shield for the Model
6512 INPUT connector.
• Model CS-631—3-slot male triax cable mount connec-
tor for use with SC-22 low-noise triax cable. Useful for
making custom cables for connections to the Model
6512 INPUT jack.
Test fixtures
Models 6105 and 8008 Resistivity Chambers—The Models
6105 and 8008 are guarded test fixtures for measuring vol-
ume and surface resistivities. The units assure good electro-
static shielding and high insulation resistance. The complete
system requires the use of an external voltage source such as
the Model 230 as well as the Model 6512. Volume resistivity
up to 10
9
Ω
-cm and surface resistivity up to 10
18
Ω
can be
measured in accordance with ASTM test procedures. Sheet
samples 64 to 102mm (2
½
×
4”) in diameter and up to
6.4mm ( ¼ ”) thickness can be accommodated. Excitation
voltages up to 1000V may be used.
Model 8006 Component Test Fixture—The Model 8006 is
specifically designed for making sensitive measurements on
standard package devices. Individual devices may be con-
nected to one of eight device sockets, including axial, 4-, 8-,
10-, and 12-lead TO, and 28-pin DIPs. Instruments may be
connected using rear panel binding posts, BNC, or triax con-
nectors.
Rack mount kits
Model 1019 Rack Mounting Kits—The Model 1019A kits
are fixed or stationary rack mounting kits intended for
mounting instruments in standard 19-inch racks. The Model
1019A-1 mounts a single Model 6512 or other similar instru-
ment, while the Model 1019A-2 mounts two Model 6512s or
similar instruments in a side-by-side configuration. The
Models 1019S-1 and 1019S-2 are similar rack mounting kits
with a sliding mount configuration.