B+K precision PR-55 User manual

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 aer 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 specic 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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