B+K precision PR-55 Manuale utente
INSTRUCTION
FOLDER PR-55
High Voltage Probe
for Oscilloscope
SAFETY
ese steps outline the minimum, basic safety
precautions that must be followed when using this
high voltage probe. Before you use this instrument,
read and thoroughly understand this information.
You must have a thorough understanding of the
hazards that may occur when working with high
voltages and when using this probe. Failure to
follow good safety practices could cause you serious
personal harm, even death. Remember, high voltage
kills if safety precautions are not followed!
1. In addition to these safety instructions, follow
those given by the manufacturer of the device being
checked.
2. Examine probe, make sure it is clean and dry.
Dirt, moisture and grease can provide a creep path
for voltage. If in doubt, wipe with a clean, dry, lint-
free cloth.
3. Check oor in the test area. It must be dry, clean
and free of oil. Never stand on a wet or damp oor.
4. Always connect the alligator clip of the probe to
earth ground before taking any measurements.
5. Examine the entry to your high voltage test point.
Make sure that you are able to bring the probe in
to the test point. Also, make sure the tip is clear of
wires, metal supports and other nearby conductive
surfaces.
6. Verify that you are able to remain clear and
avoid contact with any exposed metal and /or other
conductive parts of the device being checked.
!
7. Only use one hand to hold the handle of the
probe. Keep your free hand behind you, preferably
in you hip pocket. is position helps avoid a
situation where the voltage could ow across your
chest should a mishap occur. Current ow across
your chest is very damaging as it disturbs the rhythm
of the heart.
8. Always work within sight and hearing of another
person. If an accident occurs, you will be able to get
aid quickly.
9. When handling a CRT, avoid touching the
conductive coating before it’s discharge. Remember,
it can hold a dangerous charge long aer the set is
turned o.
DESCRIPTION
is probe measures high voltages up to 10kV DC +
AC peak. Voltages are read on any external customer
supplied oscilloscope having a constant input
impedance of 1MΩ and equipped with BNC female
receptacle.
An internal voltage divider in this probe multiplies
the range of your oscilloscope by 1000; a 10V scope
reading is actually 10,000V. e components are
housed in a high-impact, light weight ABS plastic
case with good insulating and impact resistant
properties. An alligator clip provides a good earth
ground connection.
OPERATION
Before taking any measurements, rst connect the
alligator clip of this probe to earth ground and make
sure connection is electrically good.
1. Examine probe, make sure it is clean and dry.
Dirt, moisture and grease can provide a creep path
for voltage. If in doubt, wipe with a clean, dry, lint-
free cloth.
2. Make sure appropriate tip is installed in probe
for measurement. Use round needle tip for general
applications and plat tip for CRT’s. Hand-tighten
tips, do not use pliers.
3. Connect alligator clip of your probe to earth
ground – electrical connection must be good.
4. Connect probe’s BNC male connector to your
oscilloscope. Make sure ground lead from probe is
connected to common ground of your instrument.
5. Select voltage range on oscilloscope, typically 2
or 5 volts/division. NOTE: Probe divides reading by
1000, a reading of 10V is actually 10,000 volts.
6. With your free had in your back pocket, touch
probe to high voltage point and note reading at
external meter. Avoid contacting any exposed metal
parts.
LIMITED WARRANTY
B+K Precision warrants to the original purchaser
that its product, and the components parts thereof,
will be free from defects in workmanship and
materials for a period of one year from the date of
purchase.
B+K Precision will, without charge, repair or replace,
at its option, defective products or component
parts upon delivery to an authorized B+K Precision
service contractor or to the factory service
department, accompanied by proof of the purchase
date in the form of a sales receipt.
Exclusions: is warranty does not apply in the
event of misuse or abuse of product or as a result of
unauthorized alterations or repairs. It is void in the
serial number is altered, defaced or removed.
B+K Precision shall not be liable for any
consequential damages, including without limitation,
damages resulting from loss of use. Some states do
not allow limitation of incidental or consequential
damages, so the above limitation or exclusion may
not apply to you.
is warranty gives you specic rights and you may
have other rights which vary from state-to-state.
For your convenience, we suggest you contact your
B+K Precision distributor, who may be authorized to
make repairs or can refer you to the nearest service
contractor. If warranty service cannot be obtained
locally, please send the unit to B+K Precision,
22820 Savi Ranch Parkway, Yorba Linda, CA 92887-
4604, USA, properly packaged to avoid damage in
shipment.
B+K Precision only warrants products sold in the
USA and its overseas territories. In other countries,
each distributor warrants the B+K Precision
products which it sells.
DESCRIPTION
Maximum Voltage: 10kV DC + AC peak - derated
w/ frequency
Divider Ratio: 1000:1
Input Impedance: 100MΩ ±1% // 1pF
DC Accuracy: ±1%
AC Accuracy: ±1% @ 1kHz
Frequency: 50MHz (-3dB)
Temperature: 0° to +50° C (Operating)
Scope Input Impedance: 1mΩ
Cable Length: 2m
Probe Tips: Two interchangeable screw-in types,
Round Needle, and Special Flat Spring
Safety Standards: IEC61010-1 (Pending)
22820 Savi Ranch Parkway
Yorba Linda, CA 92887-4604, USA
PR-55_INST 06/02
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