Keysight Technologies U1252B Guide de démarrage rapide

ADMINISTRATIVE INFORMATION

ACTION [X] ON SPECIFIED FAILURE

CATEGORY: [[]] AGREEABLE TIME

STANDARDS

LABOR: 0.1 Hours

LOCATION [X] CUSTOMER INSTALLABLE

CATEGORY: [[]] ON-SITE (active On-site contract required)

[[]] SERVICE CENTER

[[]] CHANNEL PARTNERS

SERVICE: [[]] RETURN

INVENTORY: [[]] SCRAP

[x] SEE TEXT

USED [[]] RETURN

PARTS: [[]] SCRAP

[x] SEE TEXT

AVAILABILITY: PRODUCT’S SUPPORT LIFE

NO CHARGE AVAILABLE UNTIL: 20 April 2017

[[]] Calibration Required

[X] Calibration NOT Required

PRODUCT LINE: WC

AUTHOR: SJ

ADDITIONAL INFORMATION:

Modification Recommended Service Note

Version 1.2 | April 25, 2016| Page 1of 3

Modification Recommended

Service Note

U1252B-06

U1252B Handheld Digit Multimeter

Serial Numbers: “See Appendix (A)"

The Problem –Capacitance measurement may be out of specification at 100nF range and below.

Parts Required:

P/N Description Qty.

Pomona 2BC-36 double banana plug both ends cable assembly

Supersedes:

NONE

Modification Recommended Service Note

Version 1.2 | April 25, 2016| Page 2of 3

Situation:

U1252B within the serial number range may not meet the specification for capacitance

measurement in 100nF range and below. This is due to improper open adjustment performed at

factory which the cable has been used to perform the open adjustment, has caused a negative

offset stored in the multimeter’s memory.

Solution/Action:

To verify whether the multimeter is impacted with capacitance measurement in 100nF range and

below:

1. Turn the knob to the Capacitance measurement position.

2. Manual set the range to 10 nF range.

3. Plug in one end of the Pomono 2BC-36 cable assembly across the capacitance measurement

terminal, leave the other end of the cable assembly open.

4. The U1252B should read between 0.8nF to 1.1nF, otherwise the “Open” calibration adjustment

was performed incorrectly.

To correct the multimeter capacitance measurement in 100nF range and below:

5. Unplug any cable from the multimeter’s terminal.

6. By referring to the service guide procedure

(http://literature.cdn.keysight.com/litweb/pdf/U1251-90036.pdf ),, unsecure the meter to

enter into the calibration adjustment mode.

7. Turn the knob to the Capacitance measurement position.

8. Perform ONLY the “Open” adjustment in Capacitance measurement without any cable

connected to the multimeter.

9. Exit calibration adjustment mode after the “Open” adjustment is done.

10. Verify the “Open” adjustment has been performed correctly by repeating step 1 to step 4.

Customers who have purchased the U1252B Multimeter within the serial number range stated in this

service note will receive a complementary Pomona 2BC-36 cable assembly.

Each customer is entitled to one free Pomona 2BC-36 cable assembly.

To request a free Pomona 2BC-36 cable assembly, please click HERE

(http://www.keysight.com/find/pomona2BCcablerequest) and provide the following information on the

web form:

1. Instrument Model Number

2. Serial Number

3. Name of distributor who sold this unit

4. Date of purchase

5. Delivery details:

Receiver’s Name

Receiver’s Address

Receiver’s Telephone number

Keysight will arrange for the shipment of the free Pomona 2BC-36 cable assembly to the customer.

Modification Recommended Service Note

Version 1.2 | April 25, 2016| Page 3of 3

Revision History:

Date

Service

Note

Revision

Author

Reason for Change

20 April 2017

As Published

Appendix (A):

MY53480020

MY54060010

MY54150041

MY54220298

MY54250189

MY54370052

MY54380017

MY53480025

MY54070013

MY54170040

MY54220337

MY54250230

MY54370054

MY54380018

MY53510009

MY54070017

MY54170102

MY54220343

MY54250252

MY54370074

MY54380020

MY53510124

MY54080005

MY54170111

MY54220364

MY54250260

MY54370098

MY54380023

MY53520204

MY54090002

MY54170156

MY54230002

MY54260090

MY54370100

MY54380031

MY53520209

MY54090007

MY54190002

MY54240004

MY54260103

MY54370108

MY54380054

MY53520214

MY54110066

MY54200068

MY54240008

MY54260113

MY54370114

MY54380066

MY53520225

MY54120062

MY54200069

MY54240019

MY54270137

MY54370121

MY54380106

MY53520227

MY54120092

MY54200072

MY54240037

MY54270301

MY54370138

MY53520229

MY54120162

MY54220108

MY54240050

MY54280048

MY54370139

MY53520238

MY54120199

MY54220109

MY54250005

MY54320004

MY54370144

MY53520246

MY54120244

MY54220112

MY54250014

MY54320103

MY54370145

MY53520247

MY54120246

MY54220119

MY54250017

MY54320120

MY54370150

MY53520249

MY54120273

MY54220132

MY54250043

MY54320143

MY54370152

MY54050011

MY54130079

MY54220150

MY54250089

MY54320147

MY54370165

MY54050016

MY54130182

MY54220152

MY54250100

MY54330085

MY54370173

MY54050023

MY54130268

MY54220156

MY54250119

MY54370008

MY54370174

MY54050024

MY54150015

MY54220244

MY54250146

MY54370039

MY54370176

MY54050034

MY54150028

MY54220258

MY54250173

MY54370046

MY54380010

MY54050035

MY54150040

MY54220271

MY54250183

MY54370047

MY54380015

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