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6.2 Replacing the Power Fuse

6.2

Replacing the Power Fuse

• To avoid electric shock, turn off the power switch and disconnect the

connection cables before replacing the fuse.

• Replace the fuse only with one of the specified characteristics and volt-

age and current ratings. Never use unspecified fuses and never use the
device after the fuse holder has shorted. This will damage the device and
cause injury.
Fuse type: MF60NRF-8A

6.4 mm × 30 mm Normal-acting fuse

Screwdriver

Fuse holder

Fuse:

6.4 mm × 30 mm

Replacing the Power Fuse

Rear panel of the device

Tools to Prepare: Phillips head screwdriver

Turn off the power switch and
disconnect the power cord.

Loosen the fuse holder screw
with the Phillips head screw-
driver and remove.

Replace the power fuse with a
fuse of the designated rating.

Insert the fuse holder into its
original location and tighten the
screw.

Removing the Fuse Holder

Содержание SM7860-01

Страница 1: ...POWER SOURCE UNIT Instruction Manual SM7860 21 to 27 February 2012 Revised edition 1 SM7860A981 01 12 02H SM7860 01 to 07...

Страница 2: ......

Страница 3: ...nnecting the Power Cord 12 2 3 Connecting the Device to the Measuring Instrument 13 2 4 Pre Operation Inspection 14 2 5 Turning the Power On and Off 15 2 6 Setting the Operating Conditions 16 Chapter...

Страница 4: ...ions 35 4 2 Timing Chart 36 4 3 Internal Circuitry 38 Chapter 5 Specifications______________________________39 5 1 General Specifications 39 5 2 Basic Specifications 40 5 3 Input Output Functions 44 C...

Страница 5: ...9pin 9pin Cross 1 8m Model 9638 RS 232C Cable 9pin 25pin Cross 1 8m Model 9151 02 GP IB Connector Cable 2 m Notes on Transportation To ensure safe handling when transporting the device please use the...

Страница 6: ...l indicates particularly important information that the user should read before using the device The symbol printed on the device indicates that the user should refer to a corresponding topic in the m...

Страница 7: ...rect sun light Exposed to high tem perature In the presence of cor rosive or explosive gas es Exposed to water oil other chemicals or solvents Exposed to high hu midity or condensa tion Exposed to str...

Страница 8: ...urements with wet hands This may cause an electric shock Touching any of the high voltage points inside the device is very danger ous Do not attempt to modify disassemble or repair the device as fire...

Страница 9: ...not bend or pull them To avoid damaging the power cord grasp the plug not the cord when unplug ging it from the power outlet Keep the cables well away from heat sources as bare conductors could be exp...

Страница 10: ...Operating Precautions 6...

Страница 11: ...tion without an external circuit allowing charging and discharging Use of semiconductor switches eliminates the need for maintenance Addition ally the ability to limit current to 50 mA for individual...

Страница 12: ...output Power indicator Lights up when the device is on Rear Panel Power inlet Connect the supplied power cord here p 12 Fuse holder Allows the fuse to be replaced p 47 RS 232C connector Connect to a c...

Страница 13: ...1 2 Names and Functions of Parts 9 Side Panel Handle It should be moved by at least two people who should grip it using the handles on the left and right sides Vent Keep clear of obstructions...

Страница 14: ...d TEMP flashes in reverse video Terminal output setting state The setting is 0 or 1 From left to right OUTn row 1 row 8 0 High impedance 1 ON Monitor voltage value VMA Displays the voltage monitor val...

Страница 15: ...8 Install this device p 3 1 Rear Panel Front Panel Turn the power on p 15 6 Connect the external interface 4 Using the GP IB or RS 232C interface p 17 Using the EXT I O p 33 Connect the power cord p...

Страница 16: ...rd only to a 3 contact two conductor ground outlet Before using the device make sure that the insulation on the power cord is undamaged and that no bare conductors are improperly exposed Using the dev...

Страница 17: ...arge that has the opposite polarity of the output voltage range Do not connect the device to a load that has a charge when the device s power supply is turned off Rear Panel 1 Confirm that the device...

Страница 18: ...normally to ensure that the no damage occurred during storage or shipping If you find any damage contact your dealer or Hioki representative Peripheral Device Inspection If damage is evident request...

Страница 19: ...e device on and off do not touch the voltage output ter minals Doing so may cause electric shock When turning the device on and off do not connect a load to the voltage output terminals Turning the de...

Страница 20: ...be configured directly in a standalone manner 2 6 Setting the Operating Conditions Setting function Description of operation and settings See page Output voltage Sets the output voltage Setup ranges 1...

Страница 21: ...in the specified format The device provides standard communication functionality in the form of GP IB and RS 232C interfaces both of which can be used to control the device remotely and to transfer d...

Страница 22: ...tion with MTA My Talk Address SR1 All Service Request functions RL1 All Remote Local functions PP0 Parallel Poll function DC1 All Device Clear functions DT1 All Device Trigger functions C0 Controller...

Страница 23: ...To avoid damage to the device do not short circuit the terminal and do not input voltage to the terminal Using the GP IB Interface Rear Panel Recommended cable HIOKI Model 9151 02 GP IB Connector Cabl...

Страница 24: ...a crossover cable with female 9 pin D sub connectors Recommended cable HIOKI Model 9637 RS 232C Cable 1 8 m Crossover Wiring Female 9 pin D sub Model SM7860 end Female 9 pin D sub PC AT end Pin No Pi...

Страница 25: ...tting turn off the device 4 Turn on the device The device will revert to the initial screen and the GP IB address will be set to the selected address G P I B A D D R 1 V A I R 1 0 0 0 0 V B I R 2 5 0...

Страница 26: ...ds end with a question mark 2 Message delimiter terminator This device recognizes the following input message delimiters CR LR with EOI LF with EOI CR with EOI EOI CR LF LF Response Messages 1 Respons...

Страница 27: ...items commas are required to separate the data items from one another Data Formats Query messages use the formats outlined in Table 1 The format is selected according to the command Table 1 Response...

Страница 28: ...the mask is set bit 6 MSS the Master Summary Status of the Status Byte Register is also set which generates an SRQ Service Request message and dispatches a service request Status Byte Register bit 7...

Страница 29: ...ry and is not cleared until the event is cleared by a command such as a CLS command Service Request Enable Register SRER ___________________________ This register masks the Status Byte Register Settin...

Страница 30: ...rameters Invalid parameter format Received a command not supported by the device Bit 4 EXE Execution Error This bit is set to 1 when a received command cannot be executed for some reason The specified...

Страница 31: ...he Standard Event Status Register Standard Event Status Register SESR and Standard Event Status Enable Register SESER bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 PON URQ CME EXE DDE QYE RQC OPC bi...

Страница 32: ...ster structure Bit No Name Event status indicated by set bit Bit 7 Unused Bit 6 MLE Message Length Error Set when the message length exceeds the allowable range The bit is reset after the register is...

Страница 33: ...tting range varies with the model Format VAI d1 d1 NR2 format VAI Circuit A output voltage setting query The contents of responses are the same as the settings Format VAI Response d1 VBI Circuit B out...

Страница 34: ...ion will be stopped Format RST IDN Hardware ID query Returns the device s hardware ID as the response d1 HIOKI SM7860 XX 0 01 00 Note The SM7860 2X is shown as SM7860 0X Format IDN Response d1 String...

Страница 35: ...R1 format CNF Operating environment setting d1 Interlock control enable disable 0 to 1 0 CONNECT Enables interlock 1 CUTOFF Disables interlock Default Format CNF d1 d1 NR1 format CNF Operating environ...

Страница 36: ...Register s MLE Message Length Error bit will be set The output buffer uses a FIFO design with older data being read first Conse quently the read value may differ from the expected value under certain...

Страница 37: ...r Always turn off the power to the device and to any devices to be con nected before making connections During operation a wire becoming dislocated and contacting another conductive object can be seri...

Страница 38: ..._ON Input 6 OUT1 5 _ON Input 31 OUT1 6 _ON Input 7 OUT1 7 _ON Input 32 OUT1 8 _ON Input 8 OUT2 1 _ON Input 33 OUT2 2 _ON Input 9 OUT2 3 _ON Input 34 OUT2 4 _ON Input 10 OUT2 5 _ON Input 35 OUT2 6 _ON...

Страница 39: ...1 _ON to OUT 3 8 _ON Channel specific on off setting OUT 4 1 _ON to OUT 4 8 _ON Channel specific on off setting INTERLOCK When on no voltage can be generated The INTERLOCK signal cannot be used unless...

Страница 40: ...H8 Discharge 3 OUT1 1 _ONto 8 _ON OUT2 1 _ONto 8 _ON OUT3 1 _ONto 8 _ON OUT4 1 _ONto 8 _ON OUT3 CH1 to CH8 OUT4 CH1 to CH8 Voltage output 2 High impedance High impedance High impedance High impedance...

Страница 41: ...00 s or less t4 OUTPUT ON Voltage output delay time 600 s or less t5 Alarm delay time 3 5 ms or less t6 Output pulse width 8 ms or more t7 OUTPUT OFF Busy delay time 800 s or less t8 OUTPUT OFF Voltag...

Страница 42: ...signals 24 VDC SM7860 side External device side COM 5 to 24 VDC Output signals Input Signals Input method Photocoupler isolated input Input voltage LOW 0 to 0 5 V HIGH 24 V 10 Output Signals Output me...

Страница 43: ...voltage SM7860 01 02 03 04 05 06 07 100 VAC 110 VAC Must specify when ordering SM7860 21 22 23 24 25 26 27 220 VAC Voltage fluctuations of 10 from the rated supply voltage are taken into account Rated...

Страница 44: ...imum output current 100 mA 100 VA 100 mA 100 VA Output voltage range 250 0 V to 1000 0 V 0 1 V resolution 250 0 V to 1000 0 V 0 1 V resolution Channels OUT 1 1 to 8 Voltage output OUT 3 1 to 8 Voltage...

Страница 45: ...outside the set range Valid setting range 2 to 19 1 resolution Current limit function Limit method Current can be limited independently for each channel Current limit direction Current can be limited...

Страница 46: ...ntinuous charging is not supported 0 1 1 0 10 0 100 0 10 100 1000 msec 250V 500V 1000V 0 1 1 0 10 0 100 0 10 100 1000 msec V 6 3V 10V 16V 25V 50V 100V 500V 250V 100V Figure 1 Charging Interval by Appl...

Страница 47: ...n which the SM7860 is used Using the instrument when there are shorted components If the capacitor being charged were shorted for example due to defective insulation the charging current would flow fo...

Страница 48: ...Input OUTPUT Output on off setting OUT 1 1 _ON to OUT 1 8 _ON Channel specific on off setting OUT 2 1 _ON to OUT 2 8 _ON Channel specific on off setting OUT 3 1 _ON to OUT 3 8 _ON Channel specific on...

Страница 49: ...cement parts contact your dealer or Hioki representative Maintenance and Service Chapter 6 6 1 Troubleshooting Inspection and Repair Touching any of the high voltage points inside the device is very d...

Страница 50: ...ing input to the external I O connector Does the voltage output indicator light up when output is turned on Set the input pin that turns output on and off to on p 34 No voltage is being output from th...

Страница 51: ...r has shorted This will damage the device and cause injury Fuse type MF60NRF 8A 6 4 mm 30 mm Normal acting fuse Screwdriver Fuse holder Fuse 6 4 mm 30 mm Replacing the Power Fuse Rear panel of the dev...

Страница 52: ...contact your dealer or Hioki repre sentative ERROR 011 Call Service Center Power supply circuit A overcurrent Check If the unit malfunctions before you have it repaired p 46 ERROR 012 Call Service Cen...

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