Atec Keithley-2400 - Manual (Page 4)

www.keithley.com
1.888.KEITHLEY
(U.S. only)
S
O
UR
C
E
A
ND
M
E
A
S
UR
E
Ti
gh
tly
c
oup
le
d
pre
ci
si
on
s
our
ci
ng
a
nd
me
as
ure
me
nt
Digital I/O Interface
The digital I/O interface can link the SourceMeter instrument to many
popular component handlers, including Aetrium, Aeco, and Robotronics.
Other capabilities of the interface include:
• Tight systems integration for applications such as binning and sorting
• Built-in component handler interface
• Start of test and end of test signals
• 5V, 300mA power supply
• Optional expander accessory (Model 2499-DIGIO) adds 16 digital I/O lines
Trigger Link Interface
All SourceMeter instruments include Keithley’s unique Trigger Link inter-
face which provides high-speed, seamless communications with many of
Keithley’s other instruments. For example, use the Trigger Link interface
to connect a SourceMeter instrument with a Series 7000 Switching System
for a complete multi-point test solution. With Trigger Link, the 7000 Series
Switching Systems can be controlled by a SourceMeter during a high-speed
test sequence independent of a computer and GPIB.
Optional Contact Check Function
The Contact Check function makes it simple to verify good connections
quickly and easily before an automated test sequence begins. This elimi-
nates measurement errors and false product failures associated with con-
tact fatigue, breakage, contamination, loose or broken connection, relay
failures, etc. Some capabilities of this function are:
• 350µs verification and notification process time
• The output of the SourceMeter instrument is automatically shut off after
a fault and is not re-activated until good contact is verified, protecting
the device under test from damage and the operator from potential
safety hazards
• 3 pass/fail threshold values: 2 Ω, 15Ω, and 50Ω
• No energy passes through the device under test during the operation
• Enabled either from the front panel or remotely over the GPIB
• 3 fault notification methods
Unique 6-Wire Ohms Technique
SourceMeter instruments can make standard 4-wire, split Kelvin, and
6-wire, guarded ohms measurements and can be configured for either the
constant current or constant voltage method. The 6-wire ohms technique:
• Uses guard and guard sense leads in addition to the 4-wire sense and
source leads
• Locks out parallel current paths when measuring resistor networks or
hybrid circuits to isolate the component under test
• Allows users to configure and plot data easily from Series 2400
SourceMeter instruments, making characterization of two, three, and
four terminal devices a snap
+
-
I
meter
V
meter
V or I
Source
350 µs
Contact Check
(optional)
GUARD
GUARD SENSE
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
Pass
Pass
Fail
Contact check option for 4-wire or 6-wire applications Free LabTracer 2.0 device characterization software (downloadable)
+
-
GUARD
GUARD SENSE
IN/OUT HI
SENSE HI
SENSE LO
IN/OUT LO
DUT
R2
R1
R3
V
meter
I
meter
I
source
6-Wire Ohms Circuit. All test current flows through R1 because the
high current guard drives the voltage across R2 to 0V.
Series 2400 SourceMeter
®
Line