LASER 5263 Logic Probe DC User Manual

: June 12, 2024
: Laser

Table of Contents

LASER 5263 Logic Probe DC
Product Information
Product Features
Product Specifications
Product Usage Instructions
LED and Buzzer Indications
Product Precautions
Logic Probe
Instructions
Precautions
Electrical Specifications
Guarantee
References
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LASER 5263 Logic Probe DC

LASER-5263-Logic-Probe-DC-product-img

Product Information

Product: Logic Probe

Part No.: 5263

Manufacturer: The Tool Connection Ltd

EU Authorised Representative: Comply Express Unipessoal Limitada, StartUp Madeira, EV141, Campus da Penteada, 9020 105 Funchal, Portugal

Website: www.lasertools.co.uk

The Logic Probe is a troubleshooting instrument designed to display visual (LED) and audio indications for logic levels (Boolean 0 or 1) and pulses. It can also capture positive or negative events as short as 30 nanoseconds. The unit is powered by the circuit under test.

Product Features

Probe with red high LED and green low LED
TTL / CMOS switch for selecting logic type
Yellow LED for pulse capture or memory
PULSE/MEM switch for selecting operation mode
Black clip for ground connection
Red clip for Vcc connection

Product Specifications

Power Supply: 20V DC / AC
Maximum Input Voltage: 40V DC / AC (duration < 15 seconds)
Maximum Input Signal Frequency: 20MHz
Input Impedance: 1M
Pulse Indicator Flash Time: 500mS
Operating Temperature: (not specified)
Storage Temperature: (not specified)

Product Usage Instructions

Connect the black clip to the ground or the common of the circuit to be tested.
Connect the red clip to the Vcc of the circuit to be tested.
Select either TTL or CMOS mode according to the logic type to be tested. For pulse or logic level testing, set the PULSE/MEM switch to PULSE position.
Touch the probe tip to the circuit point to be tested. The unit will give LED and sound indications indicating the logic level or signals. Refer to the table below for LED and buzzer indications.
To capture a positive or negative pulse, set the PULSE/MEM switch to the MEM position. The yellow LED will light and will not turn off until the switch is set back to PULSE position.

LED and Buzzer Indications

Input Signal Level	LED Indication	Buzzer
Logic: 1	High (Red) LED ON	Fixed tone
Logic: 0	Bad logic level or open circuit	No tone
Square wave < 200Hz	High and Low LEDs blink at a frequency rate	Variable

Minimum Detectable Pulse Width

Frequency: 1kHz
Minimum Pulse Width: 100ns
Frequency: 1k ~ 20kHz
Minimum Pulse Width: 50ns
Frequency: 20k ~ 20MHz
Minimum Pulse Width: 30ns

Product Precautions

Before use, verify the logic probe’s operation by measuring known signals.

Note: Operating temperature and storage temperature are not specified in the user manual. For more information, please visit the product’s website: www.lasertools.co.uk

Logic Probe

Designed as a logic troubleshooting instrument which displays visual (LED) and audio indications for logic levels (Boolean 0 or 1) and pulses. It can also capture positive or negative events as short as 30 nanoseconds. The unit is powered by the circuit under test.

LASER-5263-Logic-Probe-DC-fig-3

Probe
High LED (red)
Low LED (green)
TTL / CMOS switch
Yellow LED (Note: If the
PULSE/MEM switch is in the MEM position and the unit captures a positive or negative pulse, the yellow LED will light and does not turn off until the PULSE/MEM switch is set to PULSE position.
PULSE/MEM switch
(Note: there are two positions for this switch:
PULSE: normal operation mode for pulse or level detection.
MEM: pulse capture or memory.
Black clip: should be connected to ground or common of the circuit to be tested.
Red clip: should be connected to the Vcc of circuit to be tested.

Instructions

Connect the black clip to ground or common of the circuit to be tested. Connect the red clip to the Vcc of the circuit.
Select either TTL (transistor-transistor logic) or CMOS (complementary metallic oxide semiconductor), according to the logic type to be tested. (Note: TTL level is nominal 0 to 5V DC and CMOS levels are 0 to 5-15V DC. For pulse or logic level testing, set the PULSE/MEM switch to PULSE position.
Touch the probe tip to the circuit point to be tested. The unit will give LED and sound indications indicating the logic level or signals. (See table.)
Setting the PULSE/MEM switch to MEM position allows the unit to capture a positive or negative pulse – the yellow LED will light and does not turn off until the switch is set to PULSE position.

Input

Signal

| Level| LED

Indication

| Buzzer
---|---|---|---

Logic: 1

| TTL: > 2.3V ± .02V DC CMOS: > 70% Vcc

± 10%

None

| ****

No tone

Square wave| ****

< 200Hz

| High and Low blinks at

frequency rate

| Variable tone at a frequency rate
Square wave| ****

200Hz

| High and low may or may not be ON| Variable tone at a frequency rate

Narrow high pulse

| ****

TTL: > 2.3V ± .02V DC CMOS: > 70% Vcc ± 10%

| Low blinking intensity depends on the pulse duty cycle| ****

Variable tone at a frequency rate

Narrow low pulse

| ****

TTL: < .08V ± .02V DC CMOS: < 30% Vcc ± 10%

| High blinking intensity depends on a pulse duty cycle| ****

Variable tone at a frequency rate

Minimum Detectable Pulse Width

Frequency	1kHz	1k ~ 20kHz	20k ~ 20MHz
Minimum Pulse Width	100ns	50ns	30ns

Tip: Before use, verify the logic probe’s operation by measuring known signals.

Precautions

Do not use if the unit is damaged or operates abnormally.
Take care not to ground yourself when using the unit.
To avoid electric shock, do not touch any bare conductors, pins or terminals.
Do not input more than 40V AC or DC or the unit will be damaged.
Spark danger — do not use near explosive gas or vapor.

Electrical Specifications

Power Supply: 5 – 15V DC
Power Supply Protection: 20V DC / AC
Maximum Input Voltage: 40V DC / AC (duration < 15 seconds)
Maximum Input Signal Frequency: 20MHz
Input Impedance: 1MΩ
Pulse Indicator Flash Time: 500mS
Operating Temperature: 0 – 40°C (relative humidity < 80%)
Storage Temperature: -20 – 50°C (relative humidity < 85%)

Guarantee

If this product fails through faulty materials or workmanship, contact our service department direct on: +44 (O) 1926 818186. Normal wear and tear are excluded as are consumable items and abuse.
When you have finished with this leaflet please recycle it

Distributed by The Tool Connection Ltd