User manual

58
Component Testers
IC, ESR & Logic Probe Testers
Features & Benefits
■ Auto identification mode
■ Conditional/unconditional loop testing
mode
■ Functional test unit emulates passive
circuitry to implement a comprehensive
test in a variety of configurations and
gain settings
■ Displays diagnostic information down
to individual component pins
The 570A interfaces with analog ICs and the
575A with digital ICs. Both versions emulate
passive circuitry around the IC under test to
ensure that a comprehensive test takes place.
High integrity verification offers guaranteed
levels of reliability in the results. Conditional
and unconditional loop testing modes ensure
that intermittent and/or temperature related
faults are detected. The units automatically
sense the functionality of the device to
be tested and display a list of possible
equivalents for replacement. Unmarked
and house-coded ICs can be identified and
tested.
IC Testers Component Tester
Logic Probes
In-Circuit ESR & DCR Capacitor Tester
The 881 is a portable In-Circuit ESR Meter
that measures the equivalent series
resistance of electrolytic capacitors in or out
of circuit and can also be used to measure
low value non-inductive resistors. In-circuit
measurements are dependent on the circuit
design of the capacitor being measured.
Features & Benefits
■ Measures ESR with a range of 0.1 to
30 Ω
■ Tricolored chart shows ESR readings of
Good, Fair, and Bad
■ Measures DCR with a range of 0.1 to
30 Ω
■ 15 mVp-p output test voltage (will not
turn on any solid-state devices)
■ Includes a one-handed tweezer test
probe
The 815 is a handy meter measuring
capacitance up to 20 mF and resistance up
to 20M Ω and can also test transistors,
diodes, SCRs, LEDs, and batteries.
Features & Benefits
■ Transistor leakage test
■ Diode and SCR test
■ LED test
■ Battery test
For use with TTL and CMOS circuits and ICs
Model Description
DP 21 20 MHz Digital Logic Probe
DP 52 50 MHz Digital Pulser Probe
DP 31A 400 Hz Digital Pulser Probe
M
odel 570A Model 881 Model 815
Model DP 21