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Related Manuals for Agilent Technologies N2893A
Summary of Contents for Agilent Technologies N2893A
- Page 1 Agilent N2893A 100 MHz Current Probe User’s Guide Publication number N2893-97000 January 2011 For Safety information, Regulatory information, and publishing information, see the pages at the end of this book. © Copyright Agilent Technologies 2011 All Rights Reserved. ...
- Page 2 N2893A 100 MHz Current Probe Introduction The N2893A is a wide-band, DC to 100 MHz, active current probe. The probe features low noise and low circuit insertion loss. It also features the AutoProbe interface which makes current measurements as simple as those made with active voltage probes.
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Page 3: Table Of Contents
Demagnetization Procedure 14 Demagnetization and Zero Offset Procedure 14 Measurement Procedure 14 Service Strategy 18 To return the Probe to Agilent Technologies for Service 18 Calibration Testing Procedures 19 Test Equipment Required 19 Preliminary procedure 19 (1) AC Accuracy 20... -
Page 4: Note On Safety
Note on Safety Note on Safety This equipment is designed according to IEC 61010-1 Safety Standards, and has been WARNING tested for safety prior to shipment. Incorrect measurement procedures could result in injury or death, as well as damage to the equipment. Please read this manual carefully and be sure that you understand its contents before using the equipment. -
Page 5: Safety Considerations
• To avoid short circuits and accidents that could result in injury or death, use the DANGER N2893A only with power lines carrying 300 V or less. • When conductors being measured carry in excess of the safe voltage level (SELV-... - Page 6 Safety Considerations • Do not store the unit where it will be exposed to direct sunlight, high temperature, high humidity, or condensation. If exposed to such conditions, the unit may be damaged, the insulation may deteriorate, and the unit may no longer satisfy its specifications.
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Page 7: Description Of Parts
Description of Parts Description of Parts Sensor Current direction indication Terminator "UNLOCK" indication Sensor cable Opening lever Operating lever for opening the sensor head. Always use this lever to open the sensor head. Sensor head This clamps the conductor being measured, and carries out the actual current measurement. - Page 8 Description of Parts • The output of this unit is terminated internally. The high-impedance such as 1 M NOTE input impedance will be automatically selected on the Infiniium, as the Terminator is plugged into the AutoProbe interface. With an input impedance of 50 , accurate measurement is not possible.
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Page 9: Characteristics And Specifications
Characteristics and Specifications Characteristics and Specifications Measurement Characteristics See note 1 below. Probe Bandwidth DC to 100MHz (-3 dB) Accuracy (Probe Only)* ±1% of reading ±1mV (DC or 45Hz to 66Hz) ~ 7ns Risetime Maximum continuous current 15A (DC + ACrms) continuous (Refer to frequency derating curve, Fig. -
Page 10: Mechanical Characteristics
Characteristics and Specifications Mechanical Characteristics Maximum cable diameter 5 mm (0.2 inch) Sensor cable length 1.5 m (59 inches) Power cable length 1 m (39 inches) Dimensions Sensor: 175 mm x 18 mm x 40 mm 6.89 in. x 0.71 in. x 1.6 in. ... -
Page 11: Plots
Plots Plots Frequency response of N2893A Continuous maximum input rating of N2893A... - Page 12 Plots Insert impedance of N2893A Amplitude accuracy characteristic of N2893A...
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Page 13: Preparations For Measurement
Connect the probe terminator to one of the scope channels. When the probe is connected to a scope channel, the AutoProbe interface will recognize the probe as an N2893A and will automatically make several settings on the channel to which the probe is connected:... -
Page 14: Demagnetization Procedure
Measurement Procedure Demagnetization Procedure Refer to the Description of Parts section of this manual when performing this procedure Allow both the Infiniium oscilloscope and the probe to warm up for at least 30 minutes before making these adjustments. Ensure that the channel offset is set to 0 V on the oscilloscope channel to which the probe is connected. - Page 15 Measurement Procedure • The maximum continuous input range is based on heat that is internally generated WARNING during measurement. Never input current in excess of this level. Exceeding the rated level may result in damage to the probe. • The maximum continuous input range varies according to the frequency of the current being measured.
- Page 16 Measurement Procedure AC (f=50Hz) Current to be measured [A] Figure 4. Typical probe consumption • Immediately after powering on, this unit may be subject to an appreciable offset NOTE drift due to the effect of self-heating. To counteract this, allow the unit to warm up for about 30 minutes before carrying out measurement.
- Page 17 Measurement Procedure High Power Load Source Figure 5. Low-voltage side of the circuit...
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Page 18: Service Strategy
Service Strategy Service Strategy For calibration testing, return the N2893A probe to an Agilent Service Center. If the probe is under warranty, normal warranty services apply. If the probe is not under warranty, replacement costs will be applied. To return the Probe to Agilent Technologies for Service Call (877) 447-7278 for further details and the location of your nearest Agilent Technologies Service Office or go to www.agilent.com for contact information. -
Page 19: Calibration Testing Procedures
Wavetek 9100 (1) generator wave Amplitude accuracy: ~0.3 50 current loop N2774-23801 (4) Preliminary procedure Turn on the oscilloscope and then connect the N2893A probe to the it. Turn on the other equipment. Wait 30 minutes to warm up the equipment. -
Page 20: Ac Accuracy
(1) AC Accuracy Press the DEMAG button on the Terminator. Connect the wire to the current terminals of the AC current generator. Clamp the wire with the N2893A and lock the sensor head. Set the Infiniium setups as follows: Averaging: 16... -
Page 21: Calibration Test Record
Calibration Testing Procedures Calibration Test Record Agilent Technologies N2893A DC to 100 MHz Current Probe Recommended Test Interval: 1 year Serial No.: ___________________ Certification Date: ______________ Tested By: ___________________ Certification Temperature: _______________________ Recommended Date of Next Certification: ___________ Test Limit... - Page 22 Calibration Testing Procedures...
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Page 23: Safety Notices
• Whenever it is likely that the ground protection is impaired, you must make the instru- ment inoperative and secure it against any unintended opera- tion. Agilent Technologies P.O. Box 2197 1900 Garden of the Gods Road Colorado Springs, CO 80901... -
Page 24: Operating Procedure
WARNING contained herein, includ- ing but not limited to the A WARNING notice implied warranties of © Agilent Technologies, Inc. denotes a hazard. It merchantability and fit- 2011 calls attention to an ness for a particular No part of this manual may be... - Page 26 Agilent Technologies, Inc. 2011 First edition, January 2011 *N2893-97000* N2893-97000 ...