Bk 1787B Uživatelský manuál Strana 1

1 Instruction Manual Model 1785B, 1786B, 1787B & 1788 Programmable DC Power Supplies

10 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

11 Bench-top viewing positions Carrying position 1.5 To Rack Mount the Instrument You can mount the power supply in a s

12 To rack mount two instruments side-by-side, order rack mount kit IT-E151, you needn’t to use the front cover panel.

13 Voltage <0.05% + 10mV Programming Accuracy, 12months, (@ 25 °C ± 5 °C) ±(% of output+offset) Current <0.2%+10mA Voltage <0.05%+15mV(<

14 Environmental Conditions Designed for indoor use in an installation category II, pollution degree 2 environment. Designed to operate at maximum

15 Chapter 3 Front-panel Operation So far you have learned how to install your power supply and do quick start. During the quick start, you were br

16 Step2. Press key. Step3. Use the numeric keys to or ? and ? keys to change the voltage value. Step4. Press to

17 Step2. Select >MAX VOLT by using? and ? key. Step3. Press key. Step4. Change the voltage value by using numeric keys to

18 n Setting Address (>ADDRESS) This instruction can set the communication address for each power supply. The address range is from 0 to 254

19 Chapter 4 Remote Operation Mode The DB9 interface connector on the rear panel of the power supply can be transferred to RS-232 interface, the fo

2Content Quick Reference ...

20 4.3 Frame format Frame length is 26 bytes, the format is as follows: Start Address Command 4-25 bytes are information content Check su

21 3rd byte Command ( 20H) 4th byte Operation mode(0 represent front panel operation mode, 1 represent remote operation mode) 5th to 25th byte S

22 7th byte The highest byte of output voltage value 8th to 25th byte System reserve 26th byte Check sum 5. Setting the output current

23 11th byte To set the low byte of current value 12th byte To set the high byte of current value 13th byte Byte 0 of the maximum voltage value 1

24 1st byte Start bit(AAH) 2nd byte Address(0~0XFE) 3rd byte Command(28H) 4th byte Calibration protection state 5th byte System reserve 26th by

25 13. Sending the actual output current to calibration program (2CH) 1st byte Start bit (AAH) 2nd byte Address(0~0XFE) 3rd byte Command(2CH)

26 2nd byte Address (0~0XFE) 3rd byte Command( 31H) 4th to 8th byte Product model(ASIC code) 9th byte Lower byte of the software version 10th

27 26th byte Check sum Chapter 5 Calibration We suggest you to calibrate the power supply yearly. We provide you a se

28 5.1 Configuration Start the PC1785B_1788 System, the windows is as follows: The diagram of connecting the multi-meter to the calibrated power s

29 When you measure the output voltage or short current by the multi-meter, please make sure the value is correct. Otherwise it will cause the ca

3 Quick Reference About your safety Pease review the following safety precautions before operating our equipment. General information The fol

30 6.3 Functions of PV1785B_1788 Start the software PV1785B_1788, the windows is as follows: 1423586 791011 Configure the software operation e

31 6.3.1Configure the system The first step for communication is to configure the system, click Configure button , the windows will displa

32 6.3.3 Setting Voltage and current 1. Setting voltage/current by rotary knob Note: Before you set the current an

33 3. Program setting 6.3.4. GO/NG Test Function Program: Right-click on the Program area, the program t

34 6.3.5 Save and Open To save the program settings, quickly settings, voltage sweep settings and GO/NG settings as PAR file. To open the PAR fi

35 To set the X-Axes SpanTo set the Y-Axes SpanTo set the limit positionClick here and move to zoom in/out axes or scroll axesTo set the ring buffer

36 Limited One-Year Warranty B&K Precision Corp. warrants to the original purchaser that its product and the component parts thereof, will

37 Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the below address. Cl

38 22820 Savi Ranch ParkwayYorba Linda, CA 92887 USA TEL: 714-921-9095 FAX: 714-921-6422 www.bkprecision.com PN: 481-534-9-001 Printed in China 

4 Certification and Warranty Certification We certify that this product met its published specifications at time of shipment from the factory.

5 The Front Panel at a Glance 34576123457612 ? 10 digits VFD display ? Status information for operating mode and working status ? Power

6 Function keys description Set the output voltage value Set the current value Save the present settings to a specified register locat

7Link The power supply is in communicationmodeRmt The power supply is in remote mode Cal The power supply is in calibration modeThe function keys

8 Chapter 1 Quick Start One of the first things you will want to do with your power supply is to become acquainted with the front panel. The

9 1.2 Output Checkout The following procedures check to ensure that the power supply develops its rated outputs and properly responds to opera