B&K 1785B, 1786B, 1788, 1787B If the Power Supply Does Not Turn On, To Adjust the Carrying Handle

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zero.

7.Ensure that the current can be adjusted from zero to the full rated value.

8.Turn off the power supply and remove the short wire from the output terminals.

1.3 If the Power Supply Does Not Turn On

Use the following steps to help solve problems you might encounter when turning on the instrument. If you need more help, refer to chapter 6 for instructions on returning the instrument to the supplier for service.

1. Verify that there is AC power to the power supply.

First, verify that the power cord is firmly plugged into the power receptacle on the rear panel of the power supply. You should also make sure that the power source you plugged the power supply into is energized. Then, verify that the power supply is turned on.

2. Verify the power-line voltage setting.

The line voltage is set to the proper value for your country (110VAC or 220VAC. Change the voltage setting if it’s not correct.

3. Verify that the correct power-line fuse is installed.

If the fuse was damaged, please see the table below to replace the fuse for your power supply.

Fuse Description

Fuse 2.5A T 250V for 220VAC

Fuse 5A T 250V for 110VAC

1.4 To Adjust the Carrying Handle

To adjust the position, grasp the handle by the sides and pull outward. Then, rotate the handle to the desired position.

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Contents Page Content General information About your safetyQuick Reference Protection from electric shockIntroduction Certification and WarrantyCertification Front Panel at a Glance Menu description Function keys descriptionDisplay annunciators Rear Panel at a Glance CalPreliminary Checkout Connect the power cord and turn on the power supplyQuick Start Check the list of supplied itemsVoltage Output Checkout Output CheckoutCurrent Output Checkout Verify that there is AC power to the power supply If the Power Supply Does Not Turn OnTo Adjust the Carrying Handle Verify the power-line voltage settingTo Rack Mount the Instrument Bench-top viewing positions Carrying positionSpecifications SpecificationsSupplemental Characteristics Maximum input powerUnit mm Environmental ConditionsFront-panel Operation Overview Front-panel OperationConstant Voltage Operation Menu Operation Constant Current OperationSaving and Recalling Operation Set Maximum voltageMAX VoltInitiating the Output stateINIT OUT Setting the Key SoundKEY SoundSetting the Baud RateBAUDRATE Initiating the Output Voltage Init VoltSetting Address Address Setting password for function keysKEY LockCommunication setting Remote Operation ModeIT-E131 Communication cable Communication protocol Setting the remote control mode 20HFrame format DescriptionSetting the maximum output voltage 22H Setting the output state ON/OFF 21HSetting the output voltage 23H Setting the output current 24H Setting the communication address 25HEntering the calibration mode 27H Reading the calibration state 28HCalibrating the voltage value 29H Calibrate the current value 2BHSave the calibration data to Eeprom 2DH Setting calibration information 2EHReading calibration information 2FH Enable the local key 37H Restore the factory default calibration data 32HReturn information of command operation in power supply 12H Calibration Current calibration ConfigurationVoltage calibration Finish calibratingInstallation Reset to the default calibration settingsPV1785B1788 Software Functions of PV1785B1788 1Configure the system Status barSetting Voltage and current Quickly settingProgram setting 4. GO/NG Test FunctionChart Description Present Voltage/Current ChartSave and Open Page Limited One-Year Warranty Service Information USA