Keysight U1583B Manual de usuario

Keysight U1583B Current Clamp

Operating Instructions

The U1583B current clamp is a dual range 40 A and 400 A clamp-on AC current clamp. This U1583B current

clamp is designed for Keysight digital multimeter (DMM) and Keysight oscilloscope. A BNC-to-banana plug

adapter is required when connecting the current clamp to a multimeter. For oscilloscope, connect the current

clamp directly to the input terminal with the BNC connector.

Assistance

For technical assistance, contact your nearest Keysight Sales Ofce or visit the Keysight website at

www.keysight.com/nd/assist for further information.

Regulatory Markings

The CE mark is a registered trademark of the European Community. This CE mark

shows that the product complies with all the relevant European Legal Directives. If it

was accompanied by a year, it indicates the year the design was approved. This ISM

device complies with Canadian ICES-001.

Product contains restricted substance(s) above the maximum value, with 40 year

Environmental Protection Use Period.

The CSA mark is a registered trademark of the Canadian Standards Association.

The C-tick mark is a registered trademark of the Spectrum Management Agency of

Australia. This signies compliance with the Australia EMC Framework regulations

under the terms of the Radio Communication Act of 1992.

This instrument complies with the WEEE Directive (2002/96/EC) marking

requirement. This afxed product label indicates that you must not discard this

electrical/electronic product in domestic household waste.

Safety Information

Please use the Keysight U1583B current clamp only as specied in this manual. Otherwise, the protection

provided may be impaired. A WARNING identies conditions and actions that pose hazards to the user. A

CAUTION identies conditions and actions that may be damaging to the equipment under test. To avoid

possible electric shock, personal injury or damage to this instrument, ensure that you use the current clamp

safely, and refer to the guidelines below.

AC : Alternating Current Range button in release mode.

Range ~ 400 A, Output ~ 1 mV/A

Caution, risk of danger (Refer to the

user’s and service guide for details) DC : Direct Current

400A MAX Maximum allowable current

measurement is 400 A Ground

CAT III 600V Category III 600V over-voltage

protection Double Insulation

Range button in lock mode.

Range ~ 40 A, Output ~ 10 mV/A

Caution, risk of electric shock (Refer

to the user’s and service guide for

detail)

To be applied around or removed

from un-insulated hazardous live

conductors

-Do not use the current clamp if it is damaged. Inspect the case before using the

current clamp. Look for cracks or missing plastic. Pay particular attention to the

insulation surrounding the connectors.

-Inspect the clamp jaw before each use. No cracks, missing, loosen or weaken parts

shall be observed. Ensure there is insulation surrounding the jaw.

-Inspect the cable without exposing the metal to ensure insulation.

-Do not operate the current clamp around explosive gas, vapor, or dust.

-Do not exceed the rated voltage/current as marked on the current clamp. Use with

extreme caution when working around bare conductors. Accidental contact with the

exposed conductors could result in electric shock.

-Always keep your hand behind the nger guard of the clamp jaw.

-When servicing the current clamp, use only specied replacement parts.

-Use with caution when working above 30 V ac rms, 42 V peak, or 60 V dc.

These voltages pose a shock hazard.

-Do not operate the current clamp if the cover is removed or loosened.

-Use individual protective equipment if working in installations with accessible

hazardous live parts.

-If the equipment is used in a manner not specied by the manufacturer, the

protection provided by the equipment may be impaired

-Do not operate the current clamp around ammable gases or fumes, vapor, or wet

environments.

-Do not connect to the BNC output or the banana plug to any power sources.

-Use proper terminals, function, and range for your measurements.

Standard Items Purchase Checklist

The following items are included when you make a purchase:

- U1583B current clamp

- BNC-to-banana plug adapter

- Operating Instructions (this sheet)

General Specications

The current clamp is designed for indoor use.

Specication Current Clamp Specication Current Clamp

Specied Current Range 1 A to 400 A ac Load impedance > 1 MΩ, < 100 pF

Usable Current Range 0.5 A to 400 A Operating Temperature –40 °C to 55 °C (–40 °F to 131 °F)

AC crest factor < 3 Storage Temperature –40 °C to 70 °C (–40 °F to 158 °F)

Bandwidth 10 kHz Measurement Category CAT III 600 V; Pollution degree II

Weight 294 g Dimensions (HxWxL) 44 mm (H) x 92 mm (W) x 188 mm (L)

Cable length 1500 ± 20 mm Maximum conductor size 30 mm

Maximum Jaw

Opening 32 mm Warm-up time Immediately upon power on

Altitude Up to 2000 m Warranty One year

Relative Humidity Max 80% RH for temperature up to 35 °C, decrease linearly to 50% RH at 55 °C

Pollution Degree 2

Safety Compliance Safety Compliance Certied by CSA (Canada & USA) for IEC/EN/UL 61010-1 2nd Edition & EN/

IEC 61010-2-032

EMC Compliance Certied to IEC/EN 61326:2002, CISPR 11, and equivalents for Group 1, Class A

Electrical Specications

Range Output

Sensitivity

Accuracy

± (% of reading + as specied below) at 23 °C ± 5 °C, with relative humidity less than

80% RH

Span 48 Hz to 65 Hz 40 Hz to 48 Hz/

65 Hz to 1 kHz[1]

1 kHz to 10 kHz[1]

40 A 10 mV/A 0.5 A ~ 40 A 2 % + 0.5 A 5 % + 0.5 A 10 % + 0.5 A

400 A 1 mV/A 5 A ~ 40 A 2.5 % + 0.5 A 4.5 % + 0.5 A 12.5 % + 0.5 A

40 A ~ 200 A 2 % + 0.5 A 4 % + 0.5 A 12 % + 0.5 A

200 A ~ 400 A 1.5 % + 0.5 A 3.5 % + 0.5 A 11.5 % + 0.5 A

[1] Typical accuracy applies across all frequency ranges above 440Hz.

• The current conductor must be centered within the jaw aperture and no inuence from

adjacent currents.

• Connect to load impedance > 1 MW||100 pF.

• Crest factor < 3.

Current Clamp with

BNC connector BNC-to-banana

plug adapter Multimeter

Current Clamp with

BNC connector Oscilloscope

Figure 1: Connection Diagram

Alignment Marks

Put only one conductor within the jaws and align the conductor to the

indicated marks as much as possible in order to meet the accuracy

specications. Make sure the current clamp is perpendicular to

the conductor.

Current Range Selection

Release the yellow button for 40 A range and lock the button for 400 A range.

Button Range Output

Release ~ 40 A ~ 10 mV/A

Lock ~ 400 A ~ 1 mV/A

Operation

AC current can be measured without removing the conductor out of the circuit by following the procedure

shown below:

1. Connect the current clamp to a multimeter or oscilloscope as shown in Figure 1.

2. Set the multimeter to measure ACV with measurement range greater than 400 mV full scale.

3. Position and align the jaw to a single conductor accordingly.

4. Ensure that the arrow marked on the clamp jaw points towards the load for phase measurements, or

away from the load (toward the source) for neutral measurements.

5. Observe the AC value on the multimeter or the waveform on the oscilloscope which is proportional to

the current.

6. Select a lower range on the current clamp and set the corresponding sensitivity (mV/A setting) on the

oscilloscope if required.

Figure 2: Allignment Marks

Figure 3: Conductor Allignment Direction

Calibration Recommendation

The pre-calibration guidelines are shown as follows:

- Calibration should only be performed by a qualied personnel.

- The environment should be 23 °C ± 5 °C, and the relative humidity < 80% (RH).

The test equipment requirements listed in Table 1 or equivalents are required to perform the calibration and

performance verication test procedures. Alternative equipment may be used as long as the accuracy is equal

or better than the specications listed.

Table 1: Test Equipment Requirements

Standard Source Operating Range Accuracy

Required Recommended

Equipment

AC Current Calibrator 33 mA to 329.99 mA at 10 Hz to 3 kHz

0.33 A to 2.99999 A at 10 Hz to 3 kHz

3 A to 20.5 A at 10 Hz to 3 kHz

≤ ± 0.2 %

≤ ± 0.6 %

≤ ± 3.0 %

Fluke 5522A or equivalent

Multimeter ACV > 400 mV full scale ≤ ± 1.5 % Keysight 34450A or equivalent

50 Turns Current Coil 0.2 A to 20.5 A Not applicable Fluke 5500A/COIL or equivalent

A one-year interval is adequate for most applications. Accuracy specications are war-

ranted only if adjustment is made at regular calibration intervals. Accuracy specications

are not warranted beyond the one-year calibration interval. Keysight does not recommend

extending calibration intervals beyond two years for any application.

Performance Verication Test

Range 5522A Output Reference Value

(5522A Output * 50

turns current coil) Frequency LCOMP Error limits

(from nominal 1 year)

40 A

0.01 A 0.5 A 48 Hz OFF ±0.51 A

65 Hz OFF ±0.51 A

0.72 A 36 A

40 Hz ON ±2.30 A

48 Hz ON ±1.22 A

65 Hz ON ±1.22 A

440 Hz ON ±2.30 A

400 A

0.1 A 5 A 48 Hz OFF ±0.625 A

65 Hz OFF ±0.625 A

0.8 A 40 A

40 Hz ON ±2.1 A

48 Hz ON ±1.3 A

65 Hz ON ±1.3 A

440 Hz ON ±2.10 A

2.99999 A 150 A 40 Hz ON ±6.49 A

4 A 200 A

48 Hz ON ±3.5 A

65 Hz ON ±3.5 A

440 Hz ON ±7.5 A

7.2 A 360 A

48 Hz ON ±5.9 A

65 Hz ON ±5.9 A

440 Hz ON ±13.1 A

Adjustment Procedures

AC 40 A range

1. Lock the RANGE button of the U1583B current clamp to 40 A.

2. Connect the current clamp to a multimeter as shown in Figure 1.

3. Set the multimeter to measure ACV with range > 400 mV full scale.

4. Open the jaws of the current clamp and align to the 50 turns coil.

5. Connect calibrator AUX terminals to 50 turns coil. Congure calibrator to generate a

current of 0.4 A with a 55 Hz frequency (equivalent to 20 A, 55 Hz with 50 turns coil) for the

adjustment of the current clamp.

6. Remove two Phillips screws on the back of the current clamp and proceed to adjust VR1 using

a cermanic trimmer until the display on the multimeter indicates AC 200 mV ± 0.2 mV. Refer to

Figure 4 for the position of VR1.

Figure 4: U1583B Current Clamp Circuit Board Diagram

AC 400 A range

1. Release the Range button of the U1583B current clamp to 400 A.

2. Connect the output BNC of the U1583B to a BNC-to-dual banana converter plug and proceed to

connect it to the output of the V (HI) and COM (LO) terminals of the multimeter.

3. Set the multimeter to AC 500.0 mV or 1000.0 mV.

4. Open the jaws of the current clamp and align to the 50 turns coil.

5. Connect calibrator 20 A and AUX LO terminal to 50 turns coil. Congure calibrator to generate a

current of 4 A with a 55 Hz frequency (equivalent to 200 A, 55 Hz with 50 turns coil) for the

adjustment of the current clamp.

6. Remove two Phillips screws on the back of the current clamp and proceed to adjust VR2 until the

display on the multimeter indicates AC 200 mV ± 0.2 mV. Refer to Figure 4 for the position of VR2.

Remember to replace the screws to their original position after performing the calibration

adjustments.

Maintenance

Repair or service should only be performed by a qualied personnel.

To avoid electrical shock or damage to the current clamp, do not allow moisture to get

inside the case and remove all connections before opening the case.

Cleaning

- Periodically wipe the case with a damp cloth and mild detergent. Do not use cleaners or solvents.

- Open the jaws and wipe the metal areas of the jaws with a lightly oiled cloth, and then wipe the oil

with a dry cloth. Do not allow rust or corrosion to form on the metal surface of the jaws.

Troubleshooting

If the current clamp does not perform properly, follow the steps below to identify the problem:

1. Inspect the mating surface of the jaws for cleanliness. The presence of foreign material may

prevent the jaws from closing properly and affects the measurement results.

2. Verify and ensure the current clamp range is appropriate.

3. Verify and ensure the function and range selection on the multimeter or oscilloscope are

appropriate.

VR1 for AC 40 A

adjustment

VR2 for AC 400 A

adjustment

Edition 7, September 2020

Printed in Malaysia

U1583-90107

www.keysight.com

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

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U1583B

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