Fluke 80I-500S User Manual

80i-500s

AC CURRENT PROBE FOR

OSCILLOSCOPES

Instruction Sheet

INTRODUCTION

The Fluke 80i-500s is a clamp-on current probe that is designed to reproduce current waveforms found in modern commercial

and industrial power distribution systems. The probe’s performance is optimized for accurate reproduction of currents at line frequency and up to the 50th harmonic. The 80i-500s is also compatible with any instrument capable of millivolt measurements.

• Ideal for measuring distorted current waveforms and associated harmonics.

• Allows measurement of currents from 1 to 500A ac rms, 5 Hz to 10 kHz without breaking into the circuit.

• Provides an output of 1 mV ac per 1 amp ac.

• A passive filter eliminates noise and ring on rapidly rising waveforms, ensuring accurate reproduction on oscilloscope displays.

• Rated for 600V circuits of Overvoltage Category III per IEC 1010-1. (See “Safety Specifications” for an explanation of Overvoltage Categories.)

WWARNING

Read “Safety Information” Before using the probe.

Figure 1. 80i-500s AC Current Probe

PN 936922 January 1994

BOX CONTENTS

The shipping container includes the 80i-500s Current Probe, this Instruction Sheet, a Quick Reference Card, and a product registration card.

SAFETY INFORMATION

Read the following safety information carefully before attempting to operate or service the current probe.

• W Never use the probe on circuits rated higher than 600V in Overvoltage Category III (CAT III) or 300V in Overvoltage

Category IV (CAT IV) of IEC-1010-1. (See “Safety Specifications”.) Use extreme caution when clamping around uninsulated conductors or bus bars.

• Keep your fingers behind the finger guard.

• Check magnetic mating surface of the probe jaws; these

should be free of dust, dirt, rust, and other foreign matter.

• Do not use a probe that is cracked, damaged, or has a defective cable. Such probes should be made inoperative by taping the clamp shut to prevent operation.

In this instruction sheet, a WARNING identifies conditions and actions that pose hazards to the user. A Caution identifies conditions and actions that may damage the current probe. International electrical symbols used are explained in Figure 2.

B AC-ALTERNATING

CURRENT

D Either DC or AC T Equipment protected

J EARTH

Figure 2. International Electrical Symbols

The 80i-500s complies with IEC Publication 1010-1 and other safety standards (see “Safety Specifications”). Follow all warnings to ensure safe operation.

Use of this equipment in a manner not specified herein may impair the protection provided by the equipment.

W CAUTION see

explanation in manual

throughout by DOUBLE INSULATION or REINFORCED INSULATION

SAFETY SPECIFICATIONS

WRated for 600V ac circuits of Overvoltage Category III per IEC 1010-1 and 300V ac circuits of Overvoltage Category IV per IEC 1010-1.

Overvoltage (Installation) Category III refers to distribution level and fixed installation circuits inside a building electrical service entrance. Overvoltage (Installation) Category IV refers to primary supply, overhead lines, and cable systems outside a building.

Designed to Protection Class II, double or reinforced insulation requirements of UL 1244, ANSI / ISA S82, CSA-C22.2 No. 1010. 1-92, and IEC 1010-1.

ELECTRICAL SPECIFICATIONS

Current Range: 1A to 500A ac rms. AC Current Over Range Limit: Up to 700A ac rms for maximum

of 10 minutes, followed by removal from current carrying conductor for at least 30 minutes.

Output Signal: 1 mV ac/A ac Influence of Temperature on Accuracy: <0.15% per 10°C

(18°F) for temperatures from -10 to 18°C (14 to 64°F) and from 28 to 50°C (82 to 122°F).

Basic Accuracy (45 to 65 Hz):

Input Current: Error: Phase Shift:

1 to 20A 5% of rdg + 0.3A Not Specified 20 to 100A 5% of rdg ±3°

100 to 500A 2% of rdg ±1°

Extended Accuracy:

For other frequencies, refer to the appropriate input current range and add the error listed below to the “Basic Accuracy” error.

Input Current: Error:

(5 to 10 Hz): 1 to 500A not specified* (10 to 20 Hz): 1 to 300A 5%

300 to 400A 15% 400 to 500A 25%

(20 to 45 Hz): 1 to 500A 5% (65 Hz to 3 kHz): 1 to 50A 5%+0.4A

50 to 500A 5%

(3 kHz to 10 kHz): 1 to 500A not specified*

*-3 db @ 5 Hz and 10 kHz typical

Input Load Impedance (of host instrument): >1MΩ in parallel

with up to 47 pF

dV/dt max: 0.24 mV/µsec Rise or Fall Time: <40 µsec

W Working Voltage: 600V ac rms, in compliance with

IEC-1010-1.

W Common Mode Voltage: 600V ac rms from earth ground, in

compliance with IEC 1010-1.

Influence of Adjacent Conductor: <5 mA/A Influence of Conductor Position in Jaw Opening: +/-(1.5% of

reading +0.1A).

GENERAL SPECIFICATIONS

Dimensions: 66 x 195 x 34 mm (2.6 x 7.7 x 1.3 in.) Weight: 420g (14.8 oz.) Temperature: Operating: -10 to 50°C (14 to 122°F)

Storage: -40 to 71°C (-40 to 160°F)

Relative Humidity: 0 to 95% (10 to 30°C; 50 to 86°F)

0 to 75% (30 to 40°C; 86 to 104°F) 0 to 45% (40 to 50°C; 104 to 122°F)

Altitude: non-operating: 0 to 12000 meters (0

to 39370 ft.) operating: 0 to 2000 meters (0 to 6560 ft.)

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