FAQ

Dual Channel, 20Mhz Oscilloscope

with True RMS DMM

Specifications and Frequently Asked Questions

Included

Two Test Leads, two Banana to BNC Adapters, one DC-60 MHz X1 X10

Passive Oscilloscope Probe, Power Supply and Instruction Manual

Industrial motor control View start-up in rush currents, waveform symmetry,

SCR trigger pulses, variable frequency drive signals, pulse width modulation,

noise, misc. AC/DC speed control signals.

Power quality Noise on industrial feeds, AC voltage waveshape, current wave-

forms, machine start-up/power quality interference and noise.

Programmable logic controls PLC input and output signals, control signals,

signal conditioning circuits, communications lines and power supplies.

NC machines Power quality, sensor outputs, control circuits, safety circuits,

calibration and adjustments.

Uninterruptable power supplies Sensing and monitoring circuits, switching

circuits, output waveforms and current waveforms.

Audio Public address feeds, amplifiers, mixers and preamps.

Video Horizontal and vertical scan rates, z-axis blanking, sync pulses

and luminance.

Industrial lighting controls SCR and other solid state designs.

Factory automation Robot control signals, machine vision, machine control

and sensing circuits, calibration of positioning systems, analog controllers and

servo controls.

Line conditioners Noise and quality.

Voltage regulators Noise and stability.

Inverters Waveform quality.

APPLICATIONS

CERTIFICATION OF CALIBRATION,

CERTIFICATE OF COMPLIANCE

For details and related fees,

call 800-368-5719.

Pressure Adapter

A620

Measure up to 500 PSI.

Temperature Adapter

A301

Measure -40° to 500° F.

For K-type thermo-

couple probes, refer

to pages 18-19.

Clamp-on Adapters

A251

Measure up to 400

AC amps.

Clamp-on Adapter

A256

Measure up to 400

AC/DC amps.

Clamp-on Adapter

A296

Measure up to 2,000

AC/DC amps.

PC Software &

RS232 Cable

A404

Download data and

waveforms from the

460 to any PC using

Microsoft

Surface Mount

Test Clips

Multicolored clips

to access 0.3 pitch

leads. See page 26.

High Voltage Probe

HV15HFA

Measure accurately

up to 15KV DC.

See page 11.

Low Current Adapter

A254

Measure below one

amp AC/DC.

Current Shunt Adapter

A130

Extend amp range to

30 amps.

Protective Boot

A405

Guard against

inevitable impacts.

Unique rear cut-out

design allows deploy-

ment of 460’s rear

tilt stand.

Soft Zipper Case

A905

Protect and organize

your 460.

OPTIONAL ACCESSORIES

VERTICAL

Bandwidth

20 MHz w/SP60B 10:1 Probe

10 MHz w/Shielded Test Leads

Sample Rate

Real Time

25 Megasamples per Second up to 2 MHz

Equivalent Time

500 Megasamples per Second > 2 MHz

Sensitivity

50mV TO 200V/div 1,2,5 Sequence

Coupling

AC, DC, GND

Resolution

8 bits

Accuracy

± (3% + 0.05 range/div)

HORIZONTAL

Modes

Single, Normal, Auto

Samples per Division

25

Accuracy

Equivalent Time: ± (0.5% + 0.08 time/div)

Real Time:

± (0.1% + 0.04 time/div)

TRIGGER

Source

Internal

Modes

Free Run, Normal

Sensitivity

Equivalent Time: 3 divisions or more

Real Time:

2 divisions or more

TREND MODE

Plot Time

30 sec/div to 1 hour/div

Plot Data Type

Max/Min Selectable

Memory

2 Screens

TRUE RMS DMM

DCV (CH1, CH2)

400mV, 4, 40, 400, 600V

Basic Accuracy:

± (0.5% + 5 digits)

ACV (CH1, CH2)

400mV, 4, 40, 400, 600V

Basic Accuracy:

± (1% + 10 digits)

Frequency (CH1, CH2)

1 Hz to 20 MHz

Basic Accuracy:

± (0.5% + 5 digits)

Ohm (CH1 only)

400, 4k, 40k, 400k, 4M, 20M

Basic Accuracy:

± (0.5% + 5 digits)

Continuity (CH1 only)

Sounds < 0.1k ohm, ± (2% + 5 digits)

SPECIFICATIONS

Why do you need a 20 MHz oscilloscope?

To measure signals and voltage anomalies, and to

look for glitches that may damage or even shut

down electronic machinery. View sine waves on

power supplies, motors, and bead board circuitry.

Pinpoint certain glitches on the sine wave to zero in

on the problem and monitor changing patterns or

distortion in electrical currents.

What are the different waveform patterns

displayed on your handheld oscilloscopes?

An AC waveform known as sine wave displays

voltage against time in the shape of a sine curve.

The saw tooth waveform displays a ramped angle

and a sharp downward return to its earlier value.

(Its display pattern resembles the cutting edge of

a saw.) A square waveform graphically plots a

series of vertical square shapes repeated with

spacing between peaks.

Why is it important to have Trend Mode?

Trend Mode is great for monitoring sudden

intermittents caused by loose connections, dirt,

or damaged wires. By setting the minimum and

maximum parameters, you can monitor, even

record the changes.

What is the purpose of triggering?

Simply zoom in on certain parts of the sine wave

and “hold” to measure and monitor that particular

part you are reading. A must have when searching

for glitches and distortion on all measurements.

International Version: 220V 50/60Hz AC/DC adapter is included when specifying model no. 460X.

OPTIONAL ACCESSORIES

60 MHz Oscilloscope Probe

Three monolithic inter-

changeable probes in 60,

100, and 250 MHz band-

width. See page 25.

Technicians appreciate the bright backlight of

the 3" x 3" cold cathode flourescent display

and rugged construction inside and out.

Cursor Readout

cULus

20 MHz Bandwidth

Capture signals from AC/DC drive motors, sensors,

actuators, line and control voltages, UPS and

industrial machines.

Cursor Readout

Allows you to measure the width and amplitude of the signal and

display it on the screen instead of trying to figure it out manually.

Decibels

Allows you to accurately measure sound signals.

Pre and Post Triggering

View the waveform before and after the point the scope triggers

at to find glitches and other anomalies with the signal.

Trend Mode

Graph readings over a predetermined time period to check for

surges or dropouts.

Dual Input

View two waveforms on the display for comparison and trou-

bleshooting.

True RMS DMM

Measure AC/DC volts up to 600V, frequency to 20 MHz,

and resistance to 20 Meg ohm. True RMS allows you to obtain

accurate measurements of non-sinusoidal AC voltage and cur-

rent waveforms found in controls and circuits.

Real Time Sample Rate

Capture spikes and dropouts of industrial signals with

real time sampling of 25 megasamples per second.

Bright LCD Backlight

Adjust brightness levels for clarity under any light condition.

Optically Isolated RS232 Output

Transfer data safely without a direct connection to your

computer’s circuitry.

Continuous Autoset

Feature automatically determines the correct vertical

and horizontal settings for optimum waveform viewing. Autoset

provides hands free operation while moving between test points.

FEATURES