Acute Adp1025 User manual

Acute Technology Inc. Copyright 2016

High Voltage Differential Probe user's manual

ADP1025 25MHz/700Vpk

ADP2025 25MHz/1400Vpk

Acute Technology Inc. Copyright 2016

Safety Instructions ---------------------------------------------------------------------------------------- 1

Symbols and Terms--------------------------------------------------------------------------------------- 3

Application--------------------------------------------------------------------------------------------7

Probe Appearance------------------------------------------------------------------------------------8

Accessories-------------------------------------------------------------------------------------------10

Connecting the probe to the instrument with input impedance of 1 MΩ --------------------13

Connecting the probe to the test circuit-----------------------------------------------------------14

Operation with Oscilloscope -----------------------------------------------------------------------15

Offset null adjusting---------------------------------------------------------------------------------15

Bandwidth Limit-------------------------------------------------------------------------------------16

Overrange Detection --------------------------------------------------------------------------------17

Common-Mode Rejection --------------------------------------------------------------------------17

Twisting the Input Leads ---------------------------------------------------------------------------17

Probe Loading----------------------------------------------------------------------------------------17

Acute Technology Inc. Copyright 2016

General Safety Summary

Safety Instructions

Read the safety instructions to avoid injury and prevent damage to this product or any

products connected to it.

Ground the product.

This probe is grounded with the shell of BNC connector, through the grounding

conductor of the power cord of the measurement instrument.

To avoid electric shock, the grounding conductor must be connected to earth ground.

Before making connections to the input leads of this probe, ensure that the output BNC

connector is attached to the BNC connector of the measurement instrument, while the

measurement instrument is properly grounded.

Observe all terminal ratings.

To avoid shock hazard or fire, please note all ratings and markings on the product.

Check the product manual for further ratings information before making connections to

the product.

Do not connect a potential to any terminal that exceeds the maximum rating of that

terminal.

Connect and disconnect properly.

Do not connect/disconnect probes and test leads while they are connected to a potential

source.

Connect the probe output to the measurement instrument before connecting the probe to

Acute Technology Inc. Copyright 2016

the circuit under test.

Disconnect the probe input leads from the circuit under test before disconnecting the

probe from the measurement instrument.

Do not operate in wet/damp conditions.

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry.

Acute Technology Inc. Copyright 2016

Symbols and Terms

These symbols & terms may appear in this manual or on the product to alert you to important

safety considerations.

DANGER indicates an injury hazard immediately accessible as you read the

marking.

Danger statements identify conditions or practices that could result in injury or loss

of life.

WARNING indicates an injury hazard not immediately accessible as you read the

marking. Warning statements identify conditions or practices that could result in

damage to this product or other property.

Double insulation

Earth (ground) Terminal

Acute Technology Inc. Copyright 2016

Compliance & Certification

This section lists the EMC, safety, and environmental standards with which the probe

complies.

EMC Compliance:

EC Declaration of Conformity –EMC

Meets intent of Directive 2004/108/EC & 2014/30/EU for Electromagnetic

Compatibility.

Compliance was demonstrated to the following specifications as listed in the Official

Journal of the European Communities:

EN 61326-1:2013, EN 61326-2-1:2013. EMC requirements for electrical equipment for

measurement, control, and laboratory use.

EN55011:2009/A1:2010. Radiated and conducted emissions, Group 1, Class B

IEC 61000-4-2:2008. Electrostatic discharge immunity (ESD)

IEC 61000-4-3:2008. RF electromagnetic field immunity (RS)

IEC 61000-4-4:2012. Electrical fast transient/burst immunity (EFT)

IEC 61000-4-5:2005. Power line surge immunity

IEC 61000-4-6:2008. Conducted RF immunity

IEC 61000-4-8:2009. Power frequency magnetic field immunity

IEC 61000-4-11:2004. Voltage dips and interruptions immunity

EN 61000-3-2:2006. AC power line harmonic emissions

EN 61000-3-3:2013. Voltage changes, fluctuations, and flicker

Safety Compliance:

Equipment Type: Differential Voltage Probe

EC Declaration of Conformity –Low Voltage

Compliance was demonstrated to the following specification as listed in the Official

Journal of the European Communities:

Acute Technology Inc. Copyright 2016

Low Voltage Directive 2006/95/EC.

EN 61010-031/A1:2008. Safety requirements for electrical equipment for measurement,

control and laboratory use –Part

031: Safety requirements for handheld probe assemblies for electrical measurement and

test.

Pollution Degree Description:

A measure of the contaminants that could occur in the environment around and within a

product. Typically the internal environment inside a product is considered to be the same

as the external. Products should be used only in the environment for which they are

rated.

Pollution Degree 1.

No pollution or only dry, nonconductive pollution occurs. Products in this category are

generally encapsulated, hermetically sealed, or located in clean rooms.

Pollution Degree 2.

Normally only dry, nonconductive pollution occurs. Occasionally a temporary

conductivity that is caused by condensation must be expected. This location is a typical

office/home environment. Temporary condensation occurs only when the product is

out of service.

Pollution Degree 3.

Conductive pollution, or dry, nonconductive pollution that becomes conductive due to

condensation.

These are sheltered locations where neither temperature nor humidity is controlled. The

area is protected from direct sunshine, rain, or direct wind.

Pollution Degree 4.

Pollution that generates persistent conductivity through conductive dust, rain, or snow.

Typical outdoor locations.

Pollution Degree

Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.

Installation & Measurement (Overvoltage) Category Descriptions

Terminals on this product may have different installation or measurement (overvoltage)

Acute Technology Inc. Copyright 2016

category designations. The installation and measurement categories are:

Measurement Category IV. For measurements performed at the source of low-voltage

installation.

Measurement Category III. For measurements performed in the building installation.

Measurement Category II. For measurements performed on circuits directly connected to

the low-voltage installation.

Measurement Category I. For measurements performed on circuits not directly connected

to MAINS.

Overvoltage Category (AC Adapter)

Overvoltage Category II (as defined in IEC 61010-1)

Acute Technology Inc. Copyright 2016

Introduction

The ADP can be used with any oscilloscope and enables users to safely make measurements

of floating circuits with their oscilloscope grounded. The ADP Active Differential Probe

converts floating signals to low-voltage ground-referenced signals that can be displayed

safely and easily on any ground-referenced oscilloscope.

WARNING: For safe operation, do not use the ADP High-voltage Differential Probe

with oscilloscopes that have floating inputs (isolated inputs). The ADP High-voltage

Differential Probe requires an oscilloscope or other measurement instrument with grounded

inputs.

Application

Floating Measurements

Switching Power Supply Design

Motor Drive Design

Electronic Ballast Design

CRT Display Design

Power Converter Design and Service

Power Device Evaluation

Set each channel as Add A Signal.

Acute Technology Inc. Copyright 2016

Probe Appearance

DANGER. The rated working voltage with higher Measurement Category probably occurs a

huge surge. To avoid risk of electric shock or fire, do not exceed category rating of the

probe.

WARNING. To avoid risk of electric shock or fire, do not exceed either the voltage rating

or category rating of the probe or the probe accessory, whichever is the lesser of the two.

WARNING: For safe operation, do not use the ADP High-voltage Differential Probe

with oscilloscopes that have floating inputs.

Controls and Indicators

The probes have several features that make probing and measurement a simpler task.

Depending on the probe model, your probe attenuation ranges may differ from those

illustrated.

Acute Technology Inc. Copyright 2016

Overrange Indicator

The Overrange indicator lights red if the voltage of the input signal exceeds the linear range

of the range setting.

When this happens, the signal on the probe output does not accurately represent the signal

on the probe input.

Range Switch (Attenuation Switch)

Switch the voltage range (attenuation) settings of the probe. The range should be adjusted

on the oscilloscope.

The Overrange LED lights if the applied voltage exceeds the selected range. To extinguish

the LED, select a higher range.

If a higher range is not available, do not attempt to take the measurement with the probe.

Bandwidth Limit Switch

Switch to 5MHz will limit the probe bandwidth below 5 MHz. 5 MHz is close to the

switching frequency of most switching transistors (FETs) in switch mode power supplies

(SMPS).

The 5MHz filter assists in the characterization and testing of power supplies in switch

mode by removing all high frequency content, noise and harmonics from the measurement.

Audible Overrange Switch

Switch on to enable an audible alarm that indicates when the measured signal exceeds the

selected range.

Offset null trimmer (Offset cover on the bottom side)

There are 3 offset trimmers for nulling the DC-offset drift.

1. 10X/100X Coarse trimmer for both 10X/100X (or 20X/200X, 50X/500X) offset nulling.

2. 10X Fine-trimmer for 10X (or 20X, 50X) offset nulling.

3. 100X Fine-trimmer for 100X (or 200X, 500X) offset nulling.

WARNING. To avoid risk of electric shock or fire, do not open the offset-cover as the

probe connecting to any under testing circuit or signal.

Acute Technology Inc. Copyright 2016

Accessories

Integral Input Leads

The integral input leads extend ~9 in (0.23 m) from the probe body. Connect the leads

directly to your circuit, or use the extender leads and the accessories shown below.

Extender Leads

These cables extend the reach of the probes by ~67 in (1.5 m). The banana ends connect to

all of the clip accessories that are included with the probes. One pair of extender leads are

included with the probes.

Maximum ratings: 2300 V CAT I * 1000 V CAT III

Hook Clips (AC280-FL)

Plug the probe test leads into the banana plug connectors. Squeeze the grips to expose the

hook clip and then clasp it around the circuit test point.

Maximum ratings: 1000 V CAT III, 600 V CAT IV One pair of hook clips is included with

the probes.

Acute Technology Inc. Copyright 2016

Adjusting Tool (PF-903)

The screwdriver with Slot-end is for opening Offset-cover, and with Frierson-end is for

adjusting trimmer.

WARNING. To avoid risk of electric shock or fire, do not exceed either the voltage

rating or category rating of the probe or the probe accessory, whichever is the lesser of the

two.

Acute Technology Inc. Copyright 2016

Specifications

Specification

ADP-1025

ADP-2025

Bandwidth (-3dB)

DC to 25MHz

Attenuation

1:10/100

1:20/200

Gain accuracy

±2%

Offset zero (Scope gain=1X)

±10 mV

Diff. Input Impedance

10Mohm, 1pF

Rise time (small signal, 10-90%, 20-30°C)

14ns

Input voltage

Diff. Vin

100X: ±700V

(DC+ pk AC)

10X: ±70V

(DC + pk AC)

200X: ±1400V

(DC + pk AC)

20X: ±140V

(DC + pk AC)

Comm. Vin

±700V

±1400V

Max. Vin to Earth

600V CAT-II ;

300V CAT-III

1000V CAT-II ;

600V CAT-III

Impulse withstand

2500V

4000V

CMRR (typical)

DC: > 80dB

100kHz: > 60dB

1MHz: > 50dB

10MHz: > 38dB

Output swing

±7V (to 1Mohm load)

Offset adjusting range (Scope gain=1X)

Coarse: ±150mV

Fine: ±30mV

Bandwidth limit filters

-3dB @ ~5MHz

Diff. overvoltage detection level

100X: > |±700| V

200X: > |±1400| V

10X: > |±70| V

20X: > |±140| V

Temperature

Operating

0°C to 40°C (32°F to 104°F)

Storage

-30°C to 70°C (-22°F to 158°F)

Humidity

Operating

0°C to 35°C (32°F to 95°F), 0 to 85% RH

Storage

-55°C to 60°C (-67°F to 140°F), 0 to 90% RH

Power requirement

USB (5V, < 250mA)

Body dimension (L,W,H)mm3

145,45,20

Weight (Probe body only)

180g

Length of BNC/USB-cable

90cm

Length of Lead-cable

24cm

Acute Technology Inc. Copyright 2016

Operation

Connecting the probe to the instrument with input impedance of 1 MΩ

The probe requires an external 5Vdc power. Install the probe as follows:

1. Connect the output of the probe to the BNC input of the test instrument. The test

instrument must be ground (not floating).

2. Connect the power cord to the USB power source.

3. The green LED of the probe light to confirm power-on.

4. Adjust the vertical offset (or position).

5. Select the proper range setting.

ex, when using the ADP2025 probe, to achieve higher resolution and less noise when

measuring signals below 140V pk, switch the attenuation to 20X. If the Overrange

indicator lights or flashes, the output signal may not be accurate.

Use the 200X setting instead.

WARNING. To avoid electrical shock, observe proper safety precautions when

working with voltages above 60 VDC or 30 VACRMS.

These voltage levels pose a shock hazard. Use only the accessories specified for the

probe that you are using.

Make sure that the accessories are fully mated before connecting or disconnecting.

WARNING. To avoid electrical shock or fire, make sure the test leads are in good

condition.

If the wire jacket becomes excessively worn, do not use the probe.

6. Using the appropriate probe accessories, connect the inputs of the probe to the circuit

points to be measured.

WARNING. To avoid electrical shock or fire, keep the output cable of the probe

away from the circuits being measured. The output cable is not intended to be in contact

with the circuits being measured.

Acute Technology Inc. Copyright 2016

Connecting the probe to the test circuit

Two inputs are available at the probe tip to connect the probe to a circuit under test.

For accurate measurements, the + and –inputs both must always be connected to the test

circuit.

Positive voltages applied to the + input (red) relative to the –input (black) will deflect the

oscilloscope trace toward the top of the screen.

To maintain the high performance capability of the probe in measurement applications,

care must be exercised in connecting the probe to the test circuit.

Increasing the parasitic capacitance or inductance in the input paths may introduce a “ring”

or may slow the rise time of fast signals.

Input leads that form a large loop area will pick up any radiated electromagnetic field that

passes through the loop and may induce noise into the probe inputs.

Because this signal will appear as a differential mode signal, the probe’s common mode

rejection will not remove it.

This effect can be greatly reduced by twisting the input leads together to minimize the loop

area.

High common mode rejection requires precise matching of the relative gain or attenuation

in the + and –input signal paths.

Mismatches in additional parasitic capacitance, inductance, delay, and a source impedance

difference between the + and –signals will lower the common mode rejection ratio.

Therefore, it is desirable to use the same length and type of wire and connectors for both

input connections.

When possible, try to connect the inputs to points in the circuit with approximately the

same source impedance.

Acute Technology Inc. Copyright 2016

Operation with Oscilloscope

When the probe is connected to a oscilloscope, the displayed scale factor and measurement

values will be adjusted to account for the effective gain of the probe.

Through the oscilloscope software, the probe’s internal attenuation and offset can be

conveniently controlled through the oscilloscope’s user interface.

Turning the VOLTS/DIV knob will control the oscilloscope’s scale factor and the probe’s

internal attenuation to give full available dynamic range.

Some of the transition of the scale factor will result in a change of attenuation.

Offset null adjusting

The probe has offset capability. This allows you to remove a DC bias voltage from the

differential input signal while maintaining DC coupling.

The offset range of the probe is a function of the oscilloscope’s attenuation.

Some DC offset drift may occur from thermal effects and different power-ground loop.

The probe must have a warm-up period of at least 20 minutes and be in an environment that

does not exceed the limits described.

There are 3 offset trimmers for nulling the offset drift:

1. 10X/100X Coarse trimmer for both 10X/100X (or 20X/200X, 50X/500X) offset null.

2. 10X Fine-trimmer for 10X (or 20X, 50X) offset null.

3. 100X Fine-trimmer for 100X (or 200X, 500X) offset null.

After 20 minutes warm-up, you may switch 10X/100X (or 20X/200X, 50X/500X)

attenuation path to check their offset drift via oscilloscope.

If the offset drift exists on either attenuation path, you may open the Offset-cover by using

the Slot-end of the adjusting tool(PF-903).

WARNING. To avoid risk of electric shock or fire, do not open the offset-cover as the

probe connecting to any under testing circuit or signal.

Adjust the trimmers by using the Frierson-end of the adjusting tool(PF-903).

The skill of adjusting:

1. Make sure the probe already warm-up for over 20 minutes.

2. Disconnect the probe to any under testing circuit. Short the positive and negative input

probes.

3. Place to the center position of both Fine-trimmers

4. If the DC-offset of both attenuation path all toward positive or negative position, adjust

the Coarse-trimmer until either one is positive and another one is negative.

5. Adjust Fine-trimmer to null the DC offset of each attenuation path

Bandwidth Limit

To comply with various test standards used for quantifying output noise of power supplies,

the probe is capable of switching the bandwidth limit from full bandwidth to 5 MHz.

Operating Basics

Overrange Detection

Differential voltage outside the operating range will overdrive the circuitry of the probe and

distort the output signal. When this differential Overrange occurs, the probe detects the

condition and lights the Overrange indicator. With the Audible Overrange ON, the probe

will also emit an audible alarm.

Common-Mode Rejection

The common-mode rejection ratio (CMRR) is the specified ability of a probe to reject

signals that are common to both inputs.

More precisely, CMRR is the ratio of the differential gain to the common-mode gain. The

higher the ratio, the greater the ability of probe to reject common-mode signals.

Common mode rejection decreases as the input frequency increases. For example, if you

apply a 60 Hz line voltage of 500 Vp-p to both input leads of the probe, the probe rejects

the signal by 80 dB (typical) and the signal appears as only a 50 mVp-p signal on the

oscilloscope screen.

Twisting the Input Leads

Twisting the input leads helps to cancel noise that is induced into the input leads and to

improve the high frequency response of the inputs.

Probe Loading

When you touch your probe tip to a circuit element, you are introducing a new resistance,

capacitance, and inductance into the circuit. Frequency and impedance of the source

determine how much the probe loads the circuit you are measuring. As the frequency of the

source starts to increase beyond 1 kHz, the input impedance of the probe begins to

decrease.

The lower the impedance of the probe relative to that of the source, the more the probe

loads the circuit under test. For a graph of frequency versus input impedance, refer to the

Specifications section. As the graph shows, the probes have virtually no loading effect on

sources with relatively low impedance and low frequency.

Functional Check

Using accessories that are shipped with your probe and a source that supplies AC line voltage,

perform the following

WARNING. To reduce risk of shock or fire, ensure that the accessories are fully

mated before you connect to voltage sources above 42 Vpk.

1. Connect the output of the probe to the oscilloscope input channel.

2. Connect the probe inputs to the AC voltage source.

3. Connect the inputs, set the voltage range, and perform the check as each row of the

following table indicates.

Input 1

Input 2

Mode

Range setting

Check

Hot

Ground/Neutral

Differential

High (500/200/100x)

(A)

Hot

Ground/Neutral

Differential

Low (50/20/10x)

(B)

Hot

Common

High/Low

signal 11 If a DC offset voltage is present, null the DC-offset. (See Offset Null adjusting

section.)

(A)Measurement instrument displays or indicates the line voltage

(B)Measurement instrument displays or indicates the line voltage. Overrange indicator lights

if the input is ~20% over

This manual suits for next models

Table of contents

Other Acute Test Equipment manuals

Acute

Acute TravelScope Series User manual

Acute

Acute TravelScope Series User manual

Popular Test Equipment manuals by other brands

Elation

Elation IP TESTER user manual

Amprobe

Amprobe Telaris Series user manual

THORLABS

THORLABS PTR302 user guide

Tempo Communications

Tempo Communications Sidekick Plus instruction manual

Fluke

Fluke 341A instruction manual

Sterling Power

Sterling Power DBT12D instruction manual

Agilent Technologies

Agilent Technologies 16043A Operation and service manual

Alcofind

Alcofind DA-7000 instruction manual

Millipore

Millipore Exact-Air II Documentation

Rothenberger

Rothenberger ROTEST Electronic 3 Instructions for use

ACS

ACS ALCOCHECK quick guide

HOGERT

HOGERT HT8G412 instruction manual

ACE INSTRUMENTS

ACE INSTRUMENTS ALP-1 med quick start guide

sebaKMT

sebaKMT T 26/1 A instruction manual

Secure Care

Secure Care STAT 6.78 user guide

Elma Instruments

Elma Instruments CM01A user manual

Owon

Owon SDS1000 user manual

Bosch

Bosch SDL 41 Series Product description

Acute ADP1025 User manual

Popular Test Equipment manuals by other brands