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Instruction Manual

Model

1785B, 1786B, 1787B & 1788 Programmable DC Power Supplies

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Содержание 1785B

Страница 1: ...1 Instruction Manual Model 1785B 1786B 1787B 1788 Programmable DC Power Supplies...

Страница 2: ...1 Front panel Operation Overview 15 3 2 Constant Voltage Operation 15 3 3 Constant Current Operation 16 3 4 Saving and Recalling Operation 16 3 5 Menu Operation 16 Chapter 4 Remote Operation Mode 19 4...

Страница 3: ...ectric shock at all times The responsible body must ensure that operators are prevented access and or insulated from every connection point In some cases connections must be exposed to potential human...

Страница 4: ...hese power supplies provides versatile solutions for your design and test requirements Convenient bench top features Nice appearance small size and light weight VFD display Soft Rubber numeric keypad...

Страница 5: ...ront Panel at a Glance 3 4 5 7 6 1 2 3 4 5 7 6 1 2 10 digits VFD display Status information for operating mode and working status Power switch Number keys Function keys UP DOWN and ENTER key Output te...

Страница 6: ...N OFF to enable disable the output Menu description MAX VOLT Set the maximum output voltage value INIT OUT Initiate the output state to ON or not INIT VOL Initiate the output voltage to 0 volt or not...

Страница 7: ...supply is unregulated neither CV nor CC Link The power supply is in communication mode Rmt The power supply is in remote mode Cal The power supply is in calibration mode The function keys are locked b...

Страница 8: ...ional 2 Connect the power cord and turn on the power supply When you turn on the power supply the front panel display will light up briefly while the power supply performs its power on self test All t...

Страница 9: ...value 1 2 2 Current Output Checkout The following steps check basic current functions with a short across the power supply s output 1 Turn on the power supply 2 Disable the output Press key to ensure...

Страница 10: ...ower 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 Ve...

Страница 11: ...rack mounting the instrument To remove the handle grasp the handle by sides and pull outwards and rotate it to a special position to let the arrow on the handle and the arrow on the plastic ears be i...

Страница 12: ...1788 Voltage 0 18V 0 32V 0 72V 0 32V Current 0 5A 0 3A 0 1 5A 0 6A Output Ratings 0 C 40 C LVP 0 19V 0 33V 0 73V 0 33V Voltage 0 01 3mV Model 1788 0 02 5mV Load Regulation of output offset Current 0...

Страница 13: ...ltage 0 02 15mV 20V 0 02 120mV 20V Readback Yemperature Coefficient of output offset Current 0 1 15mA 2 2 Supplemental Characteristics State Storage Memory Sixteen 16 user configurable stored states R...

Страница 14: ...Designed to operate at maximum relative humidity of 95 and at altitudes of up to 2000 meters Weight Type 1785B 1786B 1787B 1788 N W 12 3Lbs 5 6Kg 14 8Lbs 6 7Kg 14 8Lbs 6 7Kg 14 8Lbs 6 7Kg G W 14Lbs 6...

Страница 15: ...he output parameters You can change the front panel and remote operation modes by computer 3 The power supply is in Meter mode when it is powered on and the VFD will display the actual voltage and cur...

Страница 16: ...d settings by Recall function Step1 After you setting an output state CV value CC value and Maximum voltage press key Step2 Use the numeric keys to or and keys to select the memory location the range...

Страница 17: ...he power supply n Setting the Key Sound KEY SOUND This instruction can switch on off the buzzing sound when you press any key If you select ON the buzzer will sound when any key was pressed If you sel...

Страница 18: ...to unlock them then you can continue to do the function key operation If you don t want to lock the function keys please don t press any number key when you enter the KEY LOCK instruction just press E...

Страница 19: ...SOLATION 859666668889942311 IT COMPUTER INSTRUMENT RX TX IT E131 ISOLATED COMMUNICATION CABLE TTL 5V RS232 ISOLATION 859666668889942311 IT Power supply PC 4 2 Communication setting Before using the re...

Страница 20: ...libration program n 2DH Save the calibration data to EEPROM o 2EH Setting calibration information p 2FH Reading calibration information q 31H Reading product s model series number and version informat...

Страница 21: ...byte of voltage upper limit 6 th byte The higher byte of voltage upper limit 7 th byte The highest byte of voltage upper limit 8 th to 25 th byte System reserve 26 th byte Check sum 4 Setting the outp...

Страница 22: ...urrent and the states of power supply 26H 1 st byte Start bit AAH 2 nd byte Address 0 0XFE 3 rd byte Command 26H 4 th byte Byte 0 of present output current value 5 th byte Byte 1 of present output cur...

Страница 23: ...te Calibration password 0X01H 7 th to 25 th byte System reserve 26 th byte Check sum 9 Reading the calibration state 28H Note 1 We use 4 bytes to represent the maximum voltage value as follows Byte 3...

Страница 24: ...age to calibration program 2AH 1 st byte Start bit AAH 2 nd byte Address 0 0XFE 3 rd byte Command 2AH 4 th byte The byte 0 of present voltage value 5 th byte The byte 1 of present voltage value 6 th b...

Страница 25: ...6 th byte Check sum 15 Setting calibration information 2EH 1 st byte Start bit AAH 2 nd byte Address 0 0XFE 3 rd byte Command 2EH 4 th to 23 rd byte Calibration information ASIC code 24 th byte System...

Страница 26: ...e disable local key 0 is disable 1is enable 5 th to 25 th byte System reserve 26 th byte Check sum code 20 The return information of command operation in power supply 12H 1 st byte Start bit AAH 2 nd...

Страница 27: ...cation cable to connect the DB9 interface connector of the power supply and the RS232 interface connector of the computer 3 Install the PC1785B_1788 calibration software on your computer and start the...

Страница 28: ...light up Step 3 Fill the first voltage value you measured from the multi meter to the blank of 0 000V and click OK button to confirm the value Step 4 Fill the second voltage value you measured from th...

Страница 29: ...t can work with all single output power supply models Please make sure that you purchased IT E131 communication cable and use IT E131 to connect the power supply and computer before the communicating...

Страница 30: ...when the power supply is under remote control mode you can press numeric key to change the control mode to front panel control mode Annunciators display Status bar it can show you the power supply mo...

Страница 31: ...ul Communication waiting if Communication waiting appears here for more than 10 seconds you need to check if there is any connection failure between computer and power supply After confirming the effe...

Страница 32: ...nge the value Also you can use mouse wheel Page Up Down keys and arrow keys from the keyboard to change the current value more slightly The setup value will be displayed on the second line indicator V...

Страница 33: ...upply state will return to the state before the program running Click Chart to show the voltage and current chart of the program You can do some analysis on the chart or print the chart The chart is a...

Страница 34: ...sent Voltage Current Chart 6 3 7 Chart Description The voltage and current chart can help you to analyze voltage and current changes more easily We take the voltage chart as the example to let you kno...

Страница 35: ...xes or scroll axes To set the ring buffer size Vertical marker Horizontal marker XY Value marker Limit range between the minimum value and maximum value Scroll axes mode Zoom in out axes mode Zoom out...

Страница 36: ...Savi Ranch Parkway Yorba Linda CA 92887 within fifteen 15 days from proof of purchase Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthori...

Страница 37: ...device Customers not on open account must include payment in the form of a money order or credit card For the most current repair charges contact the factory before shipping the product Return all mer...

Страница 38: ...38 22820 Savi Ranch Parkway Yorba Linda CA 92887 USA TEL 714 921 9095 FAX 714 921 6422 www bkprecision com PN 481 534 9 001 Printed in China 2005 B K Precision Corp...

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