Fluke 80K-40 Manual de usuario
PN 481978 January 1978 Rev. 10, 7/17
©1978-2017 Fluke Corporation. All rights reserved.
Specifications are subject to change without notification.
All product names are trademarks of their respective companies.
80K-40/80K-6
High Voltage Probe
Instructions
The 80K-40/80K-6 High Voltage Probe (the probe or Product) is a high
voltage accessory probe that extends the voltage measurements of an
ac/dc voltmeter:
• 80K-40 up to 40 000 volts peak ac or dc
• 80K-6 up to 6000 volts peak ac or dc
The probe takes measurements on energy-limited circuits within the
equipment. Examples include the high voltage in televisions or photo copy
machines. A 1000:1 voltage divider provides the probes with a high input
impedance that minimizes circuit loading and optimizes the measurement
accuracy. The molded plastic body houses the divider and protects the
user from hazardous voltage.
How to Contact Fluke
To contact Fluke, call one of the following telephone numbers:
• Technical Support USA: 1-800-44-FLUKE (1-800-443-5853)
• Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853)
• Canada: 1-800-36-FLUKE (1-800-363-5853)
• Europe: +31 402-675-200
• Japan: +81-3-6714-3114
• Singapore: +65-6799-5566
• China: +86-400-921-0835
• Anywhere in the world: +1-425-446-5500
Or, visit Fluke's website at www.fluke.com.
To register your product, visit http://register.fluke.com.
To view, print, or download the latest manual supplement, visit
http://us.fluke.com/usen/support/manuals.
Safety Information
A Warning identifies conditions and procedures that are dangerous to the
user. A Caution identifies conditions and procedures that can cause
damage to the Product or the equipment under test.
XW Warning
To prevent possible electrical shock, fire, or personal injury:
• Read all safety information before you use the Product.
• Do not use the Product around explosive gas, vapor, or in
damp or wet environments.
• Examine the case before you use the Product. Look for
cracks or missing plastic.
• Do not use test leads if they are damaged. Examine the test
leads for damaged insulation and measure a known voltage.
• Do not alter the Product and use only as specified, or the
protection supplied by the Product can be compromised.
• When you do a measurement, never make body contact with
the probe tip or red portion of the Product. Always hold the
Product by its black handle.
• Do not use this probe to measure high voltages on power
distribution systems.
• Connect the protective earth alligator clip lead to a known
good earth ground.
• Do not apply more than the rated voltage between the
terminals or between each terminal and earth ground.
• Have an approved technician repair the Product.
• Do not use the Product if it is altered or damaged.
• Disable the Product if it is damaged.
Symbols
Symbol Definition
XWARNING. HAZARDOUS VOLTAGE. Risk of electric
shock.
WWARNING - RISK OF DANGER. Consult user
documentation.
TDouble Insulated
Earth
PConforms to European Union directives.
)Certified by CSA Group to North American safety
standards.
~
This product complies with the WEEE Directive marking
requirements. The affixed label indicates that you must
not discard this electrical/electronic product in domestic
household waste. Product Category: With reference to
the equipment types in the WEEE Directive Annex I,
this product is classed as category 9 "Monitoring and
Control Instrumentation" product. Do not dispose of this
product as unsorted municipal waste.
Operation
Use the probe as follows:
1. Inspect the probe.
2. Connect the ground lead of the probe to protective earth ground.
3. Connect the probe cable to a compatible voltmeter. Use a shunt resistor
if required.
4. Select the 10 MΩvoltage range (1 V reading for 1000 V probe input).
5. Hold the probe by the black handle and connect the probe tip to the
circuit.
6. Observe the voltmeter reading.
Probe tip
Probe body
Multimeter or voltmeter
Plug
GND tab
Protective earth ground lead clip
MIN MAX RANGE
REL Hz %
AutoHOLD
Peak MIN MAX
4½ DIGITS
1 Second
°C/°F
OFF
mA
A
mV
V
VA
AmA COM V
400mA
FUSED
10A MAX
FUSED
A
TRUE RMS MULTIMETER
87V
LOLO
6
4
5
1
2
3
Theory Of Operation
The probe is a passive attenuator. See Table 1. High input impedance,
accuracy, and stability characteristics are achieved with thick-film
resistors. When the probe is connected to a voltmeter with a 10 MΩinput
resistance the probe becomes an accurate 1000:1 divider. This divider
depends on a ground lead to complete the low side of the circuit path. The
connection must always be secure before you do the voltage
measurement. Otherwise, instrument damage or a shock hazard can
result.
Table 1. Schematic Diagram
Voltmeter Compatibility
Accuracy of the meter is not included in the accuracy of the probe and
must be added to the probe accuracy to determine system accuracy.
The probe is mechanically compatible with any ac or dc voltmeter or
multimeter that accepts a standard double banana connector (spaced
0.75" [19 mm]) with standard plugs (0.160" [4 mm]).
The probe is electrically compatible with any ac or dc voltmeter or
multimeter that has an input impedance of:
• 10 MΩ±1 % for 80K-40
• 10 MΩ±10 % for 80K-6
Voltmeters or multimeters with other input impedances require the use of
an external shunt or a correction factor to obtain an accurate
measurement. Higher impedance voltmeters or multimeters should be
equipped with a shunt, and lower impedance voltmeters or multimeters
should be assigned correction factors.
Probe Resistor
RA RB
80K-40 999 MΩ1.11 MΩ
80K-6 75 MΩ75 kΩ
Probe Tip
(Dual Banana Plug)
Protective
Earth Lead
RA
RB 10 MΩ
(Voltmeter)
HI
LO
Use this formula to determine the value of an external shunt resistor
(meter impedance >10 MΩ):
Where: Rs = Shunt resistance in MΩ
Rm = Voltmeter input impedance in ΜΩ (>10 MΩ)
Example: If Rm = 20 MΩ,
Use this formula to calculate a correction factor (meter impedance
<10 MΩ):
Where: Cf = Correction factor (multiplier for meter reading)
Rm = Voltmeter input impedance in MΩ
Example: If Rm = 1 MΩ,
A meter reading of 0.526 volts represents an input of:
0.526 x 1.901 = 1 or 1 kV
Circuit Loading
The probe represents a load to the circuit:
• 1000 MΩ, or 1 μA/1 kV, for 80K-40
• 75 MΩ, or 13 μA/1 kV, for 80K-6
Maintenance
The probe has no user-serviceable parts.
Use a soft cloth dampened with distilled water to clean the probe. Never
use solvents of abrasive cleaners. Make sure the probes are dry before
use.
Performance Test
Verify the accuracy of the probe with a voltage source measurement:
• 25 kV dc ±0.25 % for 80K-40
• 5 kV dc ±0.25 % for 80K-6
When used with a compatible dc voltmeter, the probe should measure the
source with ±1 % accuracy. No calibration adjustments are available on
the probe.
Specifications
Voltage Range
80K-40: 0 kV to ±40 kV dc or peak ac, 28 kV rms ac
80K-6: 0 kV to ±6 kV dc or peak ac, 4.24 kV rms ac
Input Resistance
80K-40: 1000 MΩ
80K-6: 75 MΩ nominal
Division Ratio: 1000:1 (1000 x attenuation)
Rs Rm x 10
Rm 10
=−
Rs 20 10×
20 10–
------------------- 200
10
----------20MΩ===
Cf 1.11 + Rm
1.11 x Rm
=
Cf 1.11 + 1
1.11 x 1 =2.11
1.11 =1.901=
LIMITED WARRANTY AND LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and workmanship
for one year from the date of purchase. This warranty does not cover
fuses, disposable batteries, or damage from accident, neglect, misuse,
alteration, contamination, or abnormal conditions of operation or handling.
Resellers are not authorized to extend any other warranty on Fluke’s
behalf. To obtain service during the warranty period, contact your nearest
Fluke authorized service center to obtain return authorization information,
then send the product to that Service Center with a description of the
problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER
WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR PURPOSE,
ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES
OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some
states or countries do not allow the exclusion or limitation of an implied
warranty or of incidental or consequential damages, this limitation of
liability may not apply to you.
11/99
Accuracy dc
80K-40: 0 kV to 20 kV: 2 %
20 kV to 35 kV: ±1 % @ 20 °C to 30 °C, add
1 % @ 10 °C to <20 °C and >30 °C to 45 °C)
35 kV to 40 kV: 2 %
80K-6: 0 kV to 6 kV: 1 %
Accuracy ac:
80K-40: 5 % at 60 Hz
80K-6: 1 % dc to 500 Hz
2 % 500 Hz to 1 kHz
-30 % typ. @ 10 kHz
Safety: IEC 61010-031, Type B, Pollution Degree 2
Temperature
Operating: 0 °C to 50 °C
Storage: -20 °C to +60 °C
Relative Humidity: 80 % @ 30 °C
50 % @ 40 °C
Altitude
80K-40:
80K-6:
2000 m, 2000 m to 5000 m: derate linearly the
working voltage from 40 kV peak to 28 kV
peak, and derate linearly the transient
overvoltage from 60 kV peak to 44 kV peak
2000 m
Dimensions (L x W)
80K-40: 36 cm x 7.5 cm (14 in x 3 in)
80K-6: 24.9 cm x 5.10 cm (9.8 in x 2.0 in)
Weight
80K-40: 204 g (7.2 oz)
80K-6: 136 g (4.8 oz)
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
ООО «Флюк СИАЙЭС»
125167, г. Москва,
Ленинградский проспект дом 37,
корпус 9, подъезд 4, 1 этаж
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