Teledyne Lecroy AP031 Bedienungsanleitung

Operator’s

Manual

AP031

Differential Probe

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Unauthorized duplication of Teledyne LeCroy documentation materials other than for internal sales

and distribution purposes is strictly prohibited. However, clients are encouraged to distribute and

duplicate Teledyne LeCroy documentation for their own internal educational purposes.

Teledyne LeCroy is a registered trademarks of Teledyne LeCroy, Inc. Windows is a registered

trademark of Microsoft Corporation. Other product or brand names are trademarks or requested

trademarks of their respective holders. Information in this publication supersedes all earlier versions.

Specifications are subject to change without notice.

923064-00 Rev A

June 2013

Warranty

Teledyne Lecroy warrants this oscilloscope accessory for normal use and operation within specification for a period

of one year from the date of shipment. Spare parts, replacement parts and repairs are warranted for 90 days.

In exercising its warranty, Teledyne Lecroy, at its option, will either repair or replace any assembly returned within

its warranty period to the Customer Service Department or an authorized service center. However, this will be

done only if the product is determined by Teledyne Lecroy’s examination to be defective due to workmanship or

materials, and the defect is not caused by misuse, neglect, accident, abnormal conditions of operation, or damage

resulting from attempted repair or modifications by a non-authorized service facility.

The customer will be responsible for the transportation and insurance charges for the return of products to the

service facility. Teledyne Lecroy will return all products under warranty with transportation charges prepaid.

This warranty replaces all other warranties, expressed or implied, including but not limited to any implied warranty

of merchantability, fitness or adequacy for any particular purposes or use. Teledyne Lecroy shall not be liable for

any special, incidental, or consequential damages, whether in contract or otherwise.

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AP031 Probe

2 923064-00 Rev A

Safety Instructions

This section contains instructions that must be observed to keep this oscilloscope accessory

operating in a correct and safe condition. You are required to follow generally accepted

safety procedures in addition to the precautions specified in this section. The overall safety

of any system incorporating this accessory is the responsibility of the assembler of the

system.

Symbols

These symbols may appear on the probe body or in this manual to alert you to important

safety considerations.

HIGH VOLTAGE, risk of electric shock.

CAUTION of potential for damage to probe or instrument it is connected to or WARNING

of potential bodily injury. Attend to the accompanying information to protect against

personal injury or damage. Do not proceed until conditions are fully understood and met.

ELECTROSTATIC DISCHARGE (ESD) HAZARD. The probe is susceptible to damage if anti-

static measures are not taken.

ON (POWER)

OFF (POWER)

DOUBLE INSULATION

MEASUREMENT GROUND TERMINAL

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Operator’s Manual

923064-00 Rev A 3

Precautions

To avoid personal injury or damage to property, review and comply with the following

safety precautions.

Use product only as specified. The probe is designed to make differential voltage

measurements. It is not to be used to insulate the circuit under test from the measuring

instrument.

Do not overload. To avoid electric shock or fire hazard, do not apply any potential that

exceeds the maximum rating of the probe and/or the probe accessory (e.g. probe hooks),

whichever is less.

Connect and disconnect properly. To avoid electric shock or fire hazard, always make the

connections from the probe input leads to the probe hooks before making any connections

to a voltage source. Do not connect or disconnect probe hooks to a votage source unless

they are first connected to the probe input leads. Ensure connections between probe input

leads and probe hooks are secure before connecting them to a voltage source.

Use only accessories compatible with the probe. Use only accessories that are shipped

with the product. Substitution of other accessories may create a potential shock hazard.

Comply with voltage derating curve. When measuring higher frequency signals, comply

with the Voltage vs. Frequency Derating Curve (see Page 7).

Observe all terminal ratings. To avoid electric shock or fire, do not use the probe above the

input limits shown on the probe as well as all accessories.

Do not remove probe casing. Removing the probe’s case or touching exposed connections

may result in electric shock.

Use only within operational environment listed. Do not use in wet or explosive

atmospheres. Keep product surfaces clean and dry.

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AP031 Probe

4 923064-00 Rev A

Avoid damage to cable through excessive bending.

Handle with care. Tips of probe hooks are sharp. They puncture skin or cause other bodily

injury if not handled properly.

Keep fingers behind the finger guard of the probe hooks.

Do not operate with suspected failures. Before each use, inspect the probe and probe

hooks for any potential damage such as tears or other defects in the probe body, cable

jacket, accessories, etc. If any part is damaged, cease operation immediately and sequester

the probe from inadvertent use.

Introduction

The AP031 is a fully differential active probe designed for applications where electrical

signals must be measured relative to a floating voltage different to the oscilloscope ground

potential.

This probe is specifically designed for situations where:

The reference voltage may be several hundreds volts above or below ground.

Measurements require the rejection of common mode signals.

Ground loops and currents produce to excessive signal interference.

The use of the probe ensures safe operation of the oscilloscope and maintains high signal

fidelity with good common mode rejection and dynamic range.

The probe is a fully differential active device. The differential capability allows

measurements to be made between two points in a circuit without reference to ground.

The two input signals are processed inside the probe (see figure 1) and the resulting single-

ended signal may be measured by any grounded oscilloscope. Because the differential

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Operator’s Manual

923064-00 Rev A 5

voltage is calculated within the probe, with only the resultant difference signal being passed

to the oscilloscope, a large dynamic range can be achieved with excellent rejection of

common mode signals.

Figure 1

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AP031 Probe

6 923064-00 Rev A

Specifications

Electrical Characteristics

Bandwidth

25 MHz

Rise Time

14 ns

Attenuation

1:10 / 1:100

Atten. Accuracy

±2 %

Input Resistance

4 MΩ

Input Capacitance

5.5 pF each side to ground

Input Configuration

Differential

Input Voltage

Max. Differential 1:100 Range

±700 V (DC + AC pk) and 700 V r.m.s.

Max. Differential 1:10 Range

±70 V (DC + AC pk) and 70 V r.m.s.

Max. Common Mode

±700 V ( DC + AC pk) and 700 V r.m.s.

Max. Absolute

±1400 V ( DC + AC pk) and 1000 V r.m.s.

CMRR

50 Hz - 80 dB

20 kHz - 60 dB

Output Offset (Typical)

<±5 mV

Output Noise (Typical)

0.7 mV r.m.s typical

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Operator’s Manual

923064-00 Rev A 7

Electrical Ratings

Maximum Input Voltage 1000 V rms (1400 V DC + peak AC)

Installation (Overvoltage) Category III

Pollution Degree 2

Measurement Category III (CAT III) is applicable for measurements performed in the building installation.

Pollution Degree 2 is applicable to an operating environment where normally only dry non-conductive pollution

occurs. Occasionally a temporary conductivity caused by condensation must be expected.

General Characteristics

Operating Temperature -10º C to 40º C

Storage Temperature -30º C to 70º C

Altitude, Operating up to 2000 m (6560 ft)

Cable Length 1.3 m

Weight (probe only) 42 g

Power requirement Four internal 1.5 V AA size batteries or

6 V d.c. / 60 mA mains adaptor

(Not supplied )

Dimensions 6.6" (168 mm) x 2.4" (62 mm) x 0.79" (20 mm)

(excluding casing )

Cables BNC, 95 cm ( RG58 / U ), Input Lines: 45 cm

(PVC, double insulation )

Accessories 2 x Safety Hooks, 4 mm compatible (1 red, 1 black)

Weight 9.35 oz ( 285 g ) excluding batteries and casing

Safety Certification EN61010-1:2010 ; EN61010-031/A1:2008

1000V CAT III Approval

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AP031 Probe

8 923064-00 Rev A

Voltage vs. Frequency Derating

NOTE: The voltage vs frequency derating curve provides the maximum voltage that can

be applied to the probe inputs without risking damage to the probe or injury to the user

from possible burns at higher frequencies.

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 hook, whichever is the lesser of

the two.

WARNING. To avoid risk of electric shock when using the probe or accessories,

keep your fingers behind the finger guard of the probe hook.

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Operator’s Manual

923064-00 Rev A 9

Making Measurements

Ensure the probe is fitted with four high-quality, AA cells. These should be cells that are

protected from leakage which could damage the power supply contacts in the probes.

Before making any measurements or connections refer to the safety information contained

in this document.

Connect the probe to one of the oscilloscope input channels ensuring the BNC connector is

fully mated, and the safety ground lead to the oscilloscope CAL BNC connection.

Select the proper range setting on the probe using the slide-switch on the probe body.

Adjust the input coupling impedance and attenuation of the oscilloscope channel to which

the probe is connected using the Probe tab of the Channel (Vertical) setup dialog.

Ensure 1 Minput impedance ( ‘DC1M’ or ‘AC1M’ ) is selected. The use of 50 input

impedance will unduly load the output of the differential probe resulting in reduced

amplitude output and incorrect scaling.

To ensure the oscilloscope correctly interprets the vertical waveform scale be sure to adjust

the probe attenuation setting using the ‘Probe Atten’ menu controls. The example shown,

x100 probe attenuation, would achieve correct vertical scaling AP031 operating with a

maximum range of ± 700 V.

Finally, adjust the vertical sensitivity and offset of the oscilloscope channel to which the

probe is connected to achieve an optimum display.

Range Setting

Probe Operating Range (DC + Peak AC)

1/10

± 70 V

1/100

± 700 V

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