HP 1146A AC/DC Oscilloscope Current Probe

The HP 1146A AC/DC Oscilloscope Current Probe expands oscilloscope applications in industrial, automotive or power environments, and is ideal for analysis and measurement of distorted current waveforms and harmonics.

The probe permits accurate display and measurment of currents from 100 mA to 100 A rms, DC to 100 kHz without breaking into the circuit. The probe uses Hall effect technology to measure AC and DC signals. The probe connects directly to an oscilloscope through a coaxial cable with an insulated BNC.

The HP 1146A AC/DC Oscilloscope Current Probe is compatible with any analog or digital oscilloscope or other voltage measuring instrument which has the following features:

BNC Input Connector
Range Capable of Displaying 0.2 to 0.5 V per Division
Minimum Input Impedance of 1 Mohm

Current Measurement

Connect the current probe to the proper input channel on the oscilloscope. Begin with the least sensitive range on the current probe (10 mV/A). Select the 0.5 V/Division range on your oscilloscope. Clamp the probe on the conductor to be measured and read the current flowing directly on your oscilloscope.

You may also use your oscilloscope to amplify the signal while using the 100 mV/A probe range (which offers the best accuracy and least phase shift).

[ Features ]

Measures Current from dc-100 KHz
Clamps onto Current Carrying Conductor
Battery Powered

[ Specifications ]

Characteristics marked with asteriks are specific performaces, all others are typical characteristics.

Electrical Characteristics

*Current Range: 100 mV/A: 100 mA to 10 A peak 10 mV/A: 1 to 100 A peak

Output Signal: 1000 mV peak max

*AC current accuracy: (After calibration and for one year) (zero probe before making measurement)

Range	Accuracy
100 mV/A (50 mA to 10 A peak)	3% of reading +/-50 mA
10 mV/A (500 mA to 40 A peak)	4% of reading +/-50 mA
10 mV/A (40 A to100 A peak)	15% max at 100A

Phase Shift:¹ <1° from dc to 65 Hz on 10 mV/A <1.5° from dc to 65 Hz on 100 mV/A

*Frequency Range: DC to 100 kHz (-3dB with current derating)

Noise: Range 10 mV/A: 480 µV Range 100 mV/A: 3 mV

Slew Rate: Range 10 mV/A: 20 mV/µs Range 100 mV/A: 0.3 V/µs

Load Impedance: >1 Mohm/ 100 pF

Insertion Impedance (50/60 Hz): 100 mV/A: 0.01 ohm 10 mV/A: 0.01 ohm

Rise or Fall time: Range 100 mV/A: 3 µs Range 10 mV/A: 4 µs

Working Voltage: 600 Vrms max.

Common mode voltage: 600 Vrms max.

Influence of adjacent conductor: <0.2 mA/A AC

Influence of conductor position in jaw: 0.5% of reading at 1 kHz

Battery: 9 V alkaline (NEDA 1604A, IEC 6LR61)

Low battery: green LED off when greater than or equal to 6.5V

Overload indication: red LED indicates input greater than the selected range.

Typical Consumption: 8.6 mA

Battery Life: 55 hours typical

¹Reference conditions ^{23°C +/-5°C, 20 to 75% relative humidity, DC
to 1kHz, probe zeroed, 1 minute warmup, batteries at 9V
+/- 0.1 V, external magnetic field <40 A/m, no DC
component, no external current carrying conductor,
1 M ohm / 100 pF load, conductor centered in jaw.}

Environmental Characteristics

Operating Temperature: 0° to 50°C (32° to 122°F)

Storage Temperature: -30° to 80°C (-22° to 176°F)

Temperature Influence: <0.2% per °C

Operating Relative Humidity: 10° to 30°C: 85 +/- 5% RH (without condensation) 40° to 50°C: 45 +/- 5% RH (without condensation)

Altitude: Operating: 0 to 2000 m Non operating:0 to 12,000 m

Mechanical Characteristics

Zero Adjustment: 20 turn potentiometer

Maximum cable diameter: 0.46"(11.8 mm)

Case Protection: IP20 per IEC 529

Drop Test: 1.0m on 38mm of oak on concrete; test according to IEC 1010

Mechanical Shock: 100 G; test per IEC 68-2-27

Vibration: Test per IEC 68-2-6, frequency range 10 Hz to 55 Hz, amplitude 0.15 mm

Handle: Lexan® 920A, UL 94 V2, color light gray

Dimensions: 9.09 x 1.42 x 2.64" ( 231 x 36 x 67mm)

Weight: 11.6 oz (330 g) with battery

Color: light gray

Output lead: insulated coaxial cable with insulated BNC connector

Cable length: 6.5 foot (2m)

Safety Characteristics

Double insulation or reinforced insulation between primary or secondary and outer case of the handle, per IEC 1010.
600 V category III, Pollution: 2.
300 V category IV, Pollution: 2.
5550 V 50/60 Hz between primary or secondary and the outer case of the handle.
3250V 50/60 Hz between primary and secondary.

Electromagnetic compatibility CE

EN 50081-1 Class B ISM 1-A

EN 50082-2 Electrostatic discharge IEC 1000-4-2 Radiated Field IEC 1000-4-3 Fast transients IEC 1000-4-4 Magnetic Field at 50/60 Hz IEC 1000-4-8

[ Ordering ]

HP 1146A AC/DC Oscilloscope Current Probe

[ Key Literature ]

No literature is available online at this time.

[ Assistance ]
Additional help is a click away!

Want to talk to a knowledgeable engineer about this product at our HP Test and Measurement Call Center? Do you have a question you want to send in by e-mail? A measurement set-up you need to fax in? Follow the link above and you will be given a choice to contact an engineer by telephone, e-mail or fax.

This service is available only in the United States. For assistance outside the U.S., contact your local HP DIRECT or HP Sales Office.

[ Related ]

Related product families available online:

Current Probes