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Summary of Contents for SM-8216

Page 1: ...SUPER MEGOHMMETER Instruction Manual SM 8216 November 2010 Revised edition 2 SM8216A981 02 10 11H...

Page 2: ......

Page 3: ...r megohmmeter and samples 1 Safety Precautions Operators of the SM 8216 super megohmmeter are requested to read this operation manual thoroughly before operation for safety and to obtain best performa...

Page 4: ...istance in a wide range The MS 8216 meter outputs a high test voltage 1000 V maximum to apply across the sample circuit Operators are requested to read this operation manual thoroughly before trying t...

Page 5: ...eference to the operation manual DANGER HIGH VOLTAGE HAZARD This symbol is shown at the Rx Measuring terminals which carry a high voltage to be applied across the circuit to be measured WARNING DANGER...

Page 6: ...h a dangerous residual voltage may be present for several minutes after the power is turned off If repair or internal readjustment is needed contact your local HIOKI Electronics distributor CAUTION Be...

Page 7: ...rate the instrument with a wet hand This may cause electrical shock CAUTION When moving or transporting the super megohmmeter avoid shockand vibration as much as possible For long distance transportat...

Page 8: ...ain specifications for the SM 8216 For detailed specifications see 2 SPECIFICATIONS For optional accessories see 7 OPTIONAL ACCESSORIES Main Specifications For detailed specifications see 2 SPECIFICAT...

Page 9: ...ibes the functions of the controls and parts on the front and rear panels 5 PREPARATION FOR MEASUREMENT This section describes the measuring mode and setting mode before operation 6 MEASUREMENT This s...

Page 10: ...viii...

Page 11: ...nal Functions and Accessories 3 OPERATING PRINCIPLE 4 FAMILIARIZATION WITH CONTROLS AND PARTS 4 1 Front Panel 4 2 Rear Panel 5 PREPARATION FOR A MEASUREMENT 6 MEASUREMENT 6 1 Measuring Method 6 2 Usag...

Page 12: ...b 8 MAINTENANCE AND MISCELANEOUS 8 1 Periodical Checking 8 2 Storage Transportation and Abandon 9 EXTERNAL APPEARANCE...

Page 13: ...klet Power cord 1 Power cord with 3 prong plug with third for grounding Measuring rod Red 0GE00002 1 A measuring rod with a 1 meter cord to be connected to the Rx measuring terminal Measuring rod Blac...

Page 14: ...position of the switch insert the tip of a flat blade screwdriver into the slot of the switch lever and slide the leverupward or downward CAUTION Before connecting the power cord to the AC outlet sock...

Page 15: ...98 V to 242 V 220 V 10 240 V 216 V to 250 V 240 V 10V 10 1 4 Checking the Fuse Amperage The fuse holder of the instrument contains a time lag fuse of the following amperage CAUTION When the LINE SELEC...

Page 16: ...system The round prong of the 3 prong plug of the power cord is the ground prong It is recommended to use an AC line socket with its third contact grounded for connection of the accessory 3 prong pow...

Page 17: ...5 1 6 Warm up Period To obtain the performance of published specifications allow the SM 8200 Series super megohmmeter to warm for a minimum of 30 minutes...

Page 18: ...s the sample to be measured by applying the selected measuring voltage when the MEASURE CHARGE DIS CHARGE function switch is set to the CHARGE position 2 DISCHARGE Function This function discharges a...

Page 19: ...Remarks DC signal output resistance value Proportional or linear signal RP 80001 2 Factory installed DC signal output 1 R signal RI 80001 2 Factory installed 1 Either one of the RP 8000 or RI 8000 opt...

Page 20: ...ce measurement Electrodes for liquid sample Measurement SME 8330 Capacity approx 25 mL Electrode constant Approx 500 cm Electrodes for continuous Liquid sample Measurement SME 8335 Capacity approx 30...

Page 21: ...esistor And low drift voltage amplifier A measured resistance value is on a large analog meter Fig 3 1 1 shows a circuit composition of the SM 8216 Fig 3 1 1 SM 8216 Circuit Block Diagram Meter Indica...

Page 22: ...selector POWER switch This is a power switch to turn on or off the instruments A press of this switch in the released position turns ON the unit When On the incorporated green indicator lights A press...

Page 23: ...lects the function of the unit Before turning the power on be sureto set this switch to the DISCHARGE position After turning the power on and connecting the Rx measuring terminals to thesample to be m...

Page 24: ...ATION FOR A MEASUREMENT ALARM Level Setting Knob This knob is provided only when the optional AL 8000 alarm device is installed The trigger level for the alarm can be adjusted with this knob ALARM Ind...

Page 25: ...tches are to be set in accordancewith the local AC line voltage 50 or 60 Hz for the instrument For a proper setting see 1 3 Setting LINE SELECTOR Switches For line voltage change between 100 V 120 V a...

Page 26: ...tch selects the mode of alarm output to the buzzer or relay contacts when the AL 8000 optional alarm device is installed OUTPUT Connector This connector is provided when the optional alarm device AL 8...

Page 27: ...gh Voltage Enable connector Notes 1 The shorting plug is plugged to the HV EN connector when shipping from factory 2 When plugging the shorting plug make sure that the power is turned off otherwise th...

Page 28: ...Turn the unit on by pushing the POWER switch The green indicator incorporated in the switch lights to show that the unit is being powered Allow the unit to warm for a minimum of 30 minutes to obtain t...

Page 29: ...tch to the position in accordance with your measurement program 22 If there is no idea about the measuring voltage to use set the VOLTAGE selector to the lowest voltage available 10 V to try the first...

Page 30: ...ge the charge For detailed discharge function see 6 2 Using the MEASURE CHARGE DISCHARGE Function Selector Notes 1 When the red measuring rod connected to the Rx terminal is connected to the ground en...

Page 31: ...ging the RANGE selector setting 1 Set the RANGE and VOLTAGE selectors according to your measurement program Set the MEASURE CHARGE DISCHARGE function selector to the DIS CHARGE position Connect the me...

Page 32: ...ring voltage charging timeconstant Most widely used measuring voltage charging times are 1 minute rating and 3 minute rating 6 2 Usage of the MEASURE CHARGE DISCHARGE Function Selector The MEASSURE CH...

Page 33: ...onnected to the terminals and measured insulation resistance value is indicated on the analog meter 6 3 Interlocking Function Using the HV EN Connector The super megohmmeter generates a high voltage t...

Page 34: ...ection of a customer designed measuring jig to the HV EN connector use an optional HV EN plug 6 4 Calibration Function This function is intended to check the accuracy of the measuring voltage and the...

Page 35: ...or is considered as shown in Fig 6 5 1 Fig 6 5 1 Equivalent Circuit of an Insulator When a voltage is applied to the circuit a charging current flows through a bank of capacitors C0 C1 C2 Cn Firstly C...

Page 36: ...esistance value of an insulator and is widely employed among a variety of electrical standards In the 1 minute rate insulation resistance measurement the measured values may vary when a measurement is...

Page 37: ...insulation resistance can be obtained when the measuring voltage is divided by the current flowing through the circuit When the measuring voltage is constant if the insulation resistance is doubled t...

Page 38: ...f a variety of recording charts and technical service 3 Output voltage These tables show the relations between displayed value of SM 8216 super megohmmeter and output voltage of RP 8000 Target voltage...

Page 39: ...DC signal output 1 Specifications Output Range Full range of the measuring range of the SM 8216 super megohmmeter Output Voltage 10V minimum value of each range of super megohmmeter 1 V 10 times mini...

Page 40: ...value 0 25 0 5 2 5 Output voltage 10V 5V 1V Target voltage 100V Displayed value 0 5 1 5 Output voltage 10V 5V 1V Target voltage 250V Displayed value 1 25 2 5 12 5 Output voltage 10V 5V 1V Target volta...

Page 41: ...Rx measuring terminals and input output terminal board with soft cloth 3 Visually check the LCD display for brightness and clearness 4 Check the action of the switches and pushbutton switches for smoo...

Page 42: ...30 9 EXTERNAL APPEARANCE Unit mm 222 D 190 H 280 W...

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Page 44: ...ts of product development the contents of this manual are subject to revision without prior notice The content of this manual is protected by copyright No reproduction duplication or modification of t...

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