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Logic Probe and Pulser

Logic probe and pulser in one, simplifies troubleshooting digital circuits.
Max. input signal frequency: 50 mHz
Input impedance: 120kW
Minimum detectable pulse width: 10 nanosecond
Pulser: sync. input impedance 1 M ohms
Pulse rate: switchable .5pps or 400pps
Pulse width: 10 us

INTRODUCTION NOTE: When supply voltage is 7-18 Vcc Green LED may be light. this is normal condition
The Logic Pulser is very effective tool for inspecting and repairing the logic circuits. It can be used directly to inject a signal into the logic circuits without removing the IC or breaking the circuits. The 100mA pulse output insures that the device under test will be pulsed while the short 10µs duration of the output pulse makes sure that no damage will be done to the circuit under test. The Logic Pulser output is switchable between 0.5 and 400Hz, making it suitable for use with either a logic probe or with an oscilloscope; also has an external sync input, which enables the user to synchronize the pulse output with an external signal, such as a computer clock circuit.

OPERATION
Attach red alligator clip to positive side of d.c. power supply of printed circuit board under test.
Attach black alligator clip to negative side of d.c. power supply of printed circuit board under test.
Setting the repetition rate switch to 0.5apps or 400pps.

SPECIFICATIONS
Sync Input Impedance 1MΩ
Pulse Rate  0.5 / 400 Hz
Pulse Width 10µs
Output Current 100mA sink/source
Square Wave Output Current5mA sink/source
Power Supply Range5 – 15 V DC
Power Supply Protection  20V DC (30 second max)
Sync Input Protection  120 V DC (30 second max.)
Test Point Protection 35V DC (30 second max.)

RS232+Logic+Probe-lge
RS232+Logic+Probe1_lge

Specifications

Maximum Input Signal Frequency

50MHz

Input Impedence

120K Ohm

Operating Supply Range

4VDC Min - 18VDC Max

TTL: Logic 1 (HI LED)
        Logic 0 (LOW LED)

>3.0V +/- 0.25V
<0.75V +/- 0.25V

CMOS: Logic 1 (HI LED)
            Logic 0 (LOW LED)

>60% Vcc +/- 5%
<15% Vcc +/- 5%
<40% Vcc +/- 5% for 7-18Vcc

Minimum Detectable Pulse Width

10 Nanoseconds

Maximum Signal Input Protection

+/- 70V AC/DC (15 seconds)

Power Supply Protection

+/- 20VDC

LED Display Pattern

OPERATION
Attach red alligator clip to positive side of d.c. power supply of printed circuit board under test.
Attach black alligator clip to negative side of d.c. power supply of printed circuit board under test.

Input Signal

LED HI

LED LO

Logic 1

On

Off

Logic 0

Off

On

Bad Level or Open Circuit

Off

Off

Square Wave <200KHz

On

On

Square Wave >200KHZ

On

On

Narrow High Pulse

On

On

Narrow Low Pulse

On

On

* All orders over AU$100.00 have FREE Express Post shipping (for Australian customers only).
Shipping to other countries is the rate Australia Post charges, see the postage rates here.

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