LeCroy PP066 User manual

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Manual
Passive Probe
LeCroy
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PP066 Passive Probe
Instruction Manual
REVISION B- November 2001
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LeCroy Corporation
700Chestnut R~dgeRoad
Chestnut Ridge,
NY 10977-6499
Tel: [phone]. Fax. [phone]
Internet: www.lecroy.com
Warranty
LeCroy warrants thls oscilloscope accessory for normal use and operation within specificat~on
for a period of one year from the date of shipment. Spare parts, replacement parts and repalrs
are warranted for 90 days.
In exerclslng its warranty, LeCroy,
at lts option, will e~therrepalr or replace any assembly
returned within ~tswarranty periodto the Customer Service Department or an author~zedservice
center However, thls will be done only if the product is determ~nedby LeCroy's examinat~onto
be defective due to workmansh~por materials, and the defect
IS not caused by misuse. neglect,
accident, abnormal condhons of operatlon, or damage resulting from attempted repalr or mod~fl-
cat~ons
by a non-authorized service fac~llty
The customer will be respons~blefor the transportation and insurance charges for the return of
products to the service facility LeCroy will return all products under warranty with transportation
charges prepaid
Thls warranty replaces all other warranties, expressed or implied, includmg but not llmited to any
implied warranty of merchantability, fitness or adequacy for any particular purposes or use.
LeCroy shall not be llable for any special, inc~dental,or consequential damages, whether in con-
tract or otherw~se.
Copyright 2001. LeCroy Corporatlon All rights reserved. Contents of this publ~cationmay not
reproduced ~nany form wlthout
permission of LeCroy Corporation
LeCroy,SMART Trigger and ProBus are reg~steredtrademarks of LeCroy Corporat~on.All other
marks are the property of thelr respective owners.
PP066-OM-E Rev
B 1101
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Table of Contents
Safety Information
1
................................................................
Operating Environment ........................................... --.- ....... -.-. 1
safety Symbols
.--- . 1
Usage ........................................................................................................ 1
Overview
2
................................................................................
.................................................................................................
Description 2
................................................................................
Standard Accessories 2
Operation ............................................................................... 3
Handling the probe .................................................................................... 3
Connecting the Probe to the Test Instrument ............................................ 3
Connecting the Probeto the Test Circuit .................................................. 3
Replacing Attenuating Resistor ............................................................... 3
Oscilloscope Attenuation Setting ............................................................... 4
Care and Maintenance .......................................................... 5
Service Strategy ........................................................................................ 5
Returning a Probe ...................................................................................... 5
..................................................
Returning a Probe to a Different Country
6
Specifications ..................................................................... 7
.............................................................................
Nominal Characteristics 7
Typical characteristics ............................................................................... 7
Environmental Characteristics ................................................................... 7
Physical Characteristics ............................................................................ 7
Operating Conditions 7
.................................................................
Compliances and Certifications 8
...
.................................................................................
Cert~f~catrons: CE 8
Replaceable parts .............................................................. 9
PP066-OM-E Rev A
ISSUED October 2001
iii
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PP066 Pasive Probe
--
Safety Information
To avoid personalinjury and to prevent damage to the probe or any
products connected to it, review the following safety precautions.
To avoid potential hazards, use the probe only as specified.
OPERATING ENVIRONMENT
Before using the probe, ensure that its operating environment will
be maintained within these parameters:
Operation Indoor
Temperature
0 to 45 "C or 32 to 113 "F
Humidity 580% RH (non-condensing)
SAFETY SYMBOLS
Whenever the following symbols appear inthe manual, they alert
the user to an aspect of safety
USAGE
CAUTION
WARNING
The probe is intended to be used only with instruments that are
connected to earth ground through the input
BNC connector.
Connect the grounding terminal of the probe to the ground potential
of a device to be measured
Refer to accompanying documents (for safety related
information)
Calls attention to a procedure, practice or condition
that could possibly cause damage to equipment.
Calls attention to a procedure, practice or condition
that could possibly cause bodily injury or death.
The probe tips are sharp, misusecan result in injury. Usewith care.
The use of probe andlor the instrument it is connected
to in a
manner other than specified may impair the safety mechanisms
To guarantee accurate performance characteristics, mechanical
shock should be avoided, as well as damage to the cable through
excessive bending.The probe case isnot sealed and should never
be immersed in any fluid. Do nor exceed the maximum specified
signal input voltage levels (See Specifications).
1 ISSUED October 2001
PP066-OM-E Rev A
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Overview
Overview
DESCRIPTION
The PP066 is a +I0high frequency probe using a special 50 Q
cable with a SMA connector for high speed transmission line type
measurements. Input resistanceis500 Q. It isdesigned to be used
with very high bandwidth oscilloscopes.
A 120 attenuation probe resistors is included to increase the input
resistance to 1 kQ.
A SMA to BNC adapter has been provided to connect the probe to
an oscilloscope with BNC input connector for measurements at
lowerfrequencies.
Note
The
PP066 probe needs to be terminated into 50 Q for proper
attenuation and
high speed performance.
The spring loaded, hinged ground pin contributes to contact
stability inaddition to making it easier to reach into dense circuitry
The probe is designed to be used with any oscilloscope having
a
50 (1 input resistance.
Key Features
Small size
High bandwidth
Very low input capacitance
STANDARD ACCESSORIES
The PP066 is shipped with the following standard accessories:
t20Probe Resistor
SMA to BNC Adapter
Plastic Nose Housing
Instruction Manual
For part numbers refer to Replaceable Parts section.
- -
PP066-OM-E Rev A
ISSUED October 2001 2
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PP066 Pasive Probe
Operation
HANDLINGTHE PROBE
Exercisecare when handling and storing the probe. Always handle
the probe by the probe body. Avoid putting excessive strain or
exposing the probe cable to sharp bends.
CONNECTING THE PROBETO THE TEST INSTRUMENT
The PP066 probe has been designed for usewith LeCroy's
WavemasterTMor WaveProTMhighfrequency oscilloscopes.
Connecting the probe to any oscilloscope using the
SMA to BNC
adapter will make the total of the measuring system equal to the
bandwidthof the oscilloscope.
Note
For proper operation with the WavePro or any other high fre-
quency oscilloscope, the input of the oscilloscope needs tobe
set to
50 !2
CONNECTINGTHE PROBETO THE TEST CIRCUIT
To maintainthe high performance capability of the probe in
measurement applications, care must be exercised in connecting
the probeto the test circuit. Increasingthe parasitic capacitance or
inductance in the input paths may deteriorate the performance by
introducing a "ring" or slowing the rise time of fast signals. To
obtain the highest performance, keep the body of the probe
perpendicular to the circuit under test.
REPLACINGATTENUATING RESISTOR
The attenuation of the probe can be changed from +I 0 to t20 or
visa versa by changing the resistor inside the probe body.
To change or replace the resistor: (See note on page
4)
1. Removethe nose housing by rotating it counter clockwise
and pulling it away from the probe body taking care notto
bendor twist the resistor inside the housing.
2. Pull resistor straight out of the probe body without twisting
or bending the resistor.
3. Inserta different resistor by gently inserting one end of the
resistor into the probe body.
4. Install the nose housing by carefully sliding it over the
resistor and screwing it onto the probe body.
3 ISSUED October 2001 PP066-OM-E Rev A
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---
Operation
The 450C2(+70) resistor is directional. The dotted end of the
resistor needs toplaced towards the probe side. The
950Q
(20) resistor is not directional.
Note
Two different Nose Housing have been supplied to indicate the
probe'sattenuation;
a blackone to indicafe a 450 Rresistorfor+lO
attenuation anda blue housing to indicate
a 950 Qresistor for 20
attenuation.
OSCILLOSCOPE ATTENUATION SETTING
Because the PP066 probe with its SMA connector is not supplied
with ProBus encoding, you'll have to set the system's attenuation
manually.
After replacingthe resistorto obtain the desired attenuation, set the
system attenuation by pressingone of the buttons next to
Probe
Atten
inthe user interface till the desired attenuation is highlighted.
Fig. 1. System Attenuation setting
In addition, when using an oscilloscope capable of different input
resistances, set the resistance to 50
Q by pressing one of the
buttons nextto
Coupling inthe user interface till 50 Q is
highlighted.
PP066-OM-E Rev A ISSUED October 2001 4
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