User`s Manual 3213A Series Insulation Tester
Contents
1. in the figure on the right This prevents leakage current on the insulating material from flowing into the tester thus only volume resistance can be measured correctly When measuring volume resistance the optional lead for guard terminal model 321803 must be used for connection to the guard terminal Instrument Proper AN WARNING Beware of electric shock There is voltage between the earth and line terminals and between the earth and guard terminals Core Wire Bare Wire Insulating Material Metal Sheath Indicator T Power Source 3 Zero Checking Connect the line terminal 10 and earth terminal 11 together using the measuring lead unit 1 and press the switch 4 If the tester needle indicates a reading not exceeding the zero scale indication the tester is considered normal If it does not check the batteries following the instructions given in Item 4 Checking the Batteries If the batteries have run down replace them as described in Item 5 Replacing Batteries and then perform zero checking again If the tester needle does not indicate the proper point even though the batteries are still available the tester requires adjustment Please contact your nearest Yokogawa 4 Checking the Batteries 1 Without pressing the switch apply the line probe to both poles of the battery check terminal 6 simultaneously as shown in the figure on the right2. 14 2 Turn the zero adjustment screw shown in the rear view with a screwdriver etc to adjust the position of the needle During the adjustment support the instrument horizontally with the front side up 3 After the adjustment put the bottom cover 14 back and fasten the screw 15 lt Front view gt Zero adjustment screw In the following cases the instrument does not measure correctly and needs to be repaired e The position of the needle cannot be adjusted by turning the zero adjustment screw e The needle is bent and unable to show the correct value on the scale 1 Component Names lt Rear view gt 2 Earth Terminal Release Button 5 Battery Check Mark 1 Measuring Lead Unit BAT Mark 9 Jack for the Optional Probe with a Switch 11 Earth Terminal 4 Switch with lock 12 Guard Terminal Earth Lead Clip Line Probe AA Y Measuring Lead Unit 6 Battery Check Terminal 7 7 Case 13 Handling Guide 8 Strap 15 Screw to Fasten Bottom Cover 14 Bottom Cover YOKOGAWA Yokogawa Meters amp Instruments Corporation Yokogawa Meters amp Instruments Corporation International Sales Dept Tachihi Bld No 2 6 1 3 Sakaecho Tachikawa shi Tokyo 190 8586 Japan Phone 81 42 534 1413 Facsimile 81 42 534 1426 YOKOGAWA CORPORATION OF AMERICA U S A Phone 1 800 888 6400 Facsimile 1 770 254 0928 YOKOGAWA EUROPE B V THE NE
3. 4 when measuring AC voltages AN WARNING Do not connect a guard terminal lead to the guard terminal 12 AC voltage is applied to the guard terminal during AC voltage measurement This may cause electric shock 7 Maintenance Storage Conditions e Temperature 10 to 60 C e Humidity 70 RH or less with batteries removed no condensation e Avoid storing the instrument in the following location moisture direct sunlight a high temperature heat source nearby exposure to severe mechanical vibrations a large amount of dust and or salt or a corrosive gas E Cleaning Clean the instrument with a damp cloth using water or alcohol Use of a solvent chemicals such as a thinner or benzine may cause discoloration E Calibration Interval between calibrations One year Periodic calibration is required to ensure the accuracy of measurement Please contact your nearest Yokogawa for calibration 8 Specifications Specifications for this instrument conform to JIS C 1302 2002 Japanese Industrial Standard Model Rating First Effective Second Effective Central Scale AC Voltage Low limit Rated Measuring Range Measuring Range Mark Measuring Range Measuring Resistance Current 321341 100 V 20 MQ 0 02 to 10 MQ 10 to 20 MQ 0 5 MO 0 to 150 V 0 1 MQ 1 mA 321342 250 V 50 MQ 0 05 to 20 MQ 20 to 50 MQ 1MQ 0 to 250 V 0 25 MO lmA 321343 500 V 100 MQ 0 1 to 50 MQ 50 to 100 MQ 2MQ 0 to 300 V 0 5 MO 1 mA 321344 500 V 1000MQ 1 to 500 MQ 500
4. 2 If the tester needle indicates any reading below the battery check mark BAT 5 on the scale plate the batteries can still be used 3 Readings above the battery check mark mean that the batteries have run down Replace them according to the instructions given in Item 5 Replacing Batteries 5 Replacing Batteries 1 Loosen the screw 15 on the bottom cover using a coin or similar and then remove the bottom cover 14 2 Replace all 8 batteries at the same time Batteries must be placed oriented according to the polarity indication written on the holder WARNING e Prior to detaching the cover for replacing the batteries release the probe from the measured object and turn off the switch e Do not touch the measurement switch during replacement Otherwise a high voltage may be produced m A N CAUTION A malfunction may occur if a dead battery leaks 6 AC Voltage Measurement This tester can also measure AC voltages of commercially available frequencies Therefore use this function during the insulation resistance test to confirm that there is no voltage applied to the object to be measured 1 2 Insert the measuring lead unit 1 to the tester by inserting its plugs into the line terminal 10 and earth terminal 11 in the same manner as when measuring insulation resistance Apply the measuring lead unit to the AC voltage test point and read the indication on the voltage measuring scale AC V Do not press the switch
5. in a flammable or explosive gas atmosphere e Do not operate the instrument if there is condensation on it 9 Disassembly e Do not attempt to disassemble the instrument A N CAUTION E To avoid injury of personnel or damage to the instrument carefully observe and follow the cautions listed below 1 Measurement of AC voltage e Do not apply a voltage over the allowable limits between the terminals 2 GUARD terminal e The GUARD terminal is an auxiliary measurement terminal to eliminate a leakage current Do not apply a voltage to the terminal 3 Power supply to the measured object e Metals and wiring connected to the electric equipment may have a voltage being applied Confirm that no voltage is being applied prior to connecting the measurement terminal The same precaution applies to the grounding system 4 Batteries e Do not use different types of batteries together or new and old batteries together If the instrument is not used for a long period store the instrument with the batteries removed Otherwise any leakage from the batteries may damage the instrument E Adjusting the position of the tester needle infinity scale Before the measurement make sure that the tester needle is positioned on the infinity cc mark while the measurement probe is removed MQ If the needle is not positioned correctly adjust the position as follows 1 Loosen the screw 15 using a coin or similar and then remove the bottom cover
6. to 1000MQ 20 MQ 0 to 300 V 0 5 MQ 1 mA 321345 1000 V 2000 MQ 2 to 1000 MQ 1000 to 2000 MQ 50 MQ 0 to 300 V 1 MQ 1 mA The minimum reading that can maintain the rated voltage 0 55 mA in the first effective measuring range Standard Conditions Ambient temperature Relative humidity 45 to 75 RH Position Horizontal within 5 of the horizontal External magnetic field None Battery voltage Within the effective battery range below the battery check mark on the scale plate 235 C Tolerances under standard conditions Intrinsic error Measured resistance 5 in the first effective measuring range 10 in the second effective measuring range Infinity scale and zero scale Within 0 7 of the scale length AC voltage 10 of the maximum reading Open circuit voltage Within 130 of the rated voltage Rated measuring current 0 to 20 of 1 mA in the first effective measuring range Short circuit current Within 12 mA Effect of AC component of voltage at measurement terminals Within 10 of reading when a capacitor of 5 UF 10 is connected in parallel with a resistor the value of which is determined from the rated measuring voltage and current and which is itself connected to the measuring terminals Within three seconds to reach the tolerance range after resistances equivalent to the central and zero scale readings are suddenly applied to the tester Instantaneous maximum voltage No more than 1 5 times the rate
7. THERLANDS Phone 31 33 464 1611 Facsimile 31 33 464 1610 YOKOGAWA AMERICA DO SUL LTDA BRAZIL Phone 55 11 5681 2400 Facsimile 55 11 5681 4434 YOKOGAWA ENGINEERING ASIA PTE LTD SINGAPORE Phone 65 6241 9933 Facsimile 65 6241 2606 YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION KOREA Phone 82 2 551 0660 to 0664 Facsimile 82 2 551 0665 YOKOGAWA AUSTRALIA PTY LTD AUSTRALIA Phone 61 2 8870 1100 Facsimile 61 2 8870 1111 YOKOGAWA INDIA LTD INDIA Phone 91 80 4158 6000 Facsimile 91 80 2852 1441 YOKOGAWA SHANGHAI TRADING CO LTD CHINA Phone 86 21 6239 6363 Facsimile 86 21 6880 4987 YOKOGAWA MIDDLE EAST B S C C BAHRAIN Phone 973 17 358100 Facsimile 973 17 336100 YOKOGAWA ELECTRIC CIS LTD RUSSIAN FEDERATION Phone 7 495 737 7868 Facsimile 7 495 737 7869 IM3E 2008 8 2 3 Measuring Operations Connecting the Measuring Lead Unit Connect the measuring lead unit 1 to the tester by inserting its plugs into the line terminal 10 and earth terminal 11 Be sure to insert the plug of the line probe to the line terminal and the plug of the earth lead clip to the earth terminal These plugs are locked once they are securely inserted Measurement wiring Power supply side primary Set the switch to OFF Earth probe Line probe Load side secondary Grounding electrode Disconnecting the Measuring Lead Unit Disconnect the measuring le
8. ad unit while pressing the earth terminal and line terminal release buttons 2 and 3 simultaneously Measurement of Insulation Resistance If the object to be measured is earthed connect the earth lead clip to the earthing point of the object Apply the line probe of the measuring lead unit 1 to the object to be measured then press the switch 4 The tester needle indicates the obtained insulation resistance value When applying the line probe do not allow its lead wire to come into contact with the earth floor or other object If this happens insulation resistance cannot be measured correctly The earth lead clip may be either connected if the object to be measured is not earthed Locking the Switch Pull up the switch 4 to keep it in the on position This function is useful if measurement is to continue for a long time If the locked state is prolonged however the battery will quickly become depleted Using the Optional Probe with a Switch Insert the probe plugs to the line terminal 10 earth terminal 11 and jack 9 To start measurement press the probe switch instead of the switch 4 on the main unit Measurement of Volume Resistance Volume resistance alone can be measured without any effect of surface leakage resistance When testing a cable for example wrap a bare wire around the insulating material and connect an optional lead for guard terminal between the bare wire and the guard terminal 12 as shown
9. d measuring voltage Effect of temperature Response time be within 5 of the scale length at the central scale mark and within 0 7 at the infinity scale and zero scale marks Effect of humidity humidity for one hour Effect of external magnetic field A change shall be within 3 when the maximum center and minimum values of the first effective measuring range are indicated and an external field of 400 A m DC is applied in the most affected direction Effect of inclination and backward then to the right and the left from the horizontal Effect of external voltage When an AC voltage 1 2 fold the rated measuring voltage at 50 Hz or 60 Hz is applied between the measuring terminals for 10 seconds with the switch 4 being turned on and then off there is no abnormality Battery voltage Within the effective battery range below the battery check mark on the scale plate Possible number of measurements When the measuring time is five seconds each with approximately 25 seconds between measurements using manganese batteries and the minimum resistance that can be measured while the rated measuring voltage is connected Model Range Number of measurements 321341 100 V 20 MQ Approx 5 700 321342 250 V 50 MQ Approx 5 300 321343 500 V 100 MQ Approx 3 000 321344 500 V 1000 MQ Approx 3 000 321345 1000 V 2000 MQ Approx 1 000 Withstand voltage 3700 V AC for one minute between the electric circuits and the outer case Scale len
10. ea i User s Manual 3213A Series Insulation Tester Please read through this instruction manual before starting operation in order to ensure correct and effective use of Model 3213A Insulation Tester 1st Edition June 1994 YG All Rights Reserved Copyright 1994 Yokogawa M amp C Corporation B3 IM 321341 01E YOKOGAWA 5th Edition Sep 2008 Yokogawa Meters amp Instruments Corporation Safety Precautions E For safe use of this tester the following safety symbols are used in the user s manual A Danger Handle with Care This symbol indicates that the operator must refer to an explanation in the user s manual in order to avoid risk of injury or death of personnel or damage to the tester A High voltage Terminal This symbol indicates a dangerous voltage level terminals with voltages exceeding 1000 volts must be so marked Never touch the terminals WARNING Indicates a hazard that may result in the loss of life or serious injury of the user unless the described instruction is abided by CAUTION Indicates a hazard that may result in an injury to the user and or physical damage to the product or other equipment unless the described instruction is abided by m WARNING E To avoid injury death of personnel carefully observe and follow the warnings listed below 1 During the measurement of insulation resistance e A high voltage is generated in the probe during the measurement of insulation resistance Do no
11. est lead NX i storage bag e Test lead storage bag B9646CA 3 Strap B9303XE NZ gt Measuring Terminal Voltage Characteristics 6 Me 2 S x 1000 ED a T 1 4 g 13 amp 600 amp 12 321345 fe A gt 1 321343 B g Q 321344 E 300 321342 E e D L 05 200 gt 24 2 400 321341 z 83 0 01 0 1 1 10 100 o Ss 0 1 10 100 1000 00 Measuring Resistance MQ Measuring Resistance MQ External Dimensions T a lt U Y m Vy MK 177 LQ LO o o 0 LO O Uoo Unit mm E Measurement Categories Measurement category Description Remarks I CAT I For measurements performed on circuits not directly connected to MAINS 0 CAT I For measurements performed on circuits Appliances portable equipments etc directly connected to the low voltage installation li CAT I For measurements performed Distribution board circuit breaker etc in the building installation V CAT V For measurements performed Overhead wire cable systems etc at the source of the low voltage installation E Outline of Measurement Principle Internal Wiring Distribution Eit Board ntrance panene D T able va rh r 1 Ci CATV Fixed Equipment Outlet ee Equipment Meter display High voltage Measurement generator switch circuit LINE Logarithm conversion circuit Eight AA size batteries Notice Regard
12. gth Approximately 84 mm Protection against water solid matters and dust penetration JIS C 0920 compliance class IP 20 Foreign substances of 12 5 mm or more in diameter must not enter at all IEC 60529 Degrees of protection provided by enclosures Vibration proof in each of three mutually perpendicular directions in comparison with before the test the variations difference in error is limited within 100 of the intrinsic error tolerance Shock proof for 6 ms three times in each of three mutually perpendicular directions totaling 18 times in comparison with before the test the variations difference in error is limited within 100 of the intrinsic error tolerance Operating temperature humidity range 0 to 40 C within 90 RH no condensation Storage temperature humidity range 10 to 60 C within 70 RH with batteries removed no condensation Battery Eight AA size R6 External dimensions Approx 177x105x55mm Weight Approximately 700 g including batteries Approximately 1 2 kg including carrying case strap measuring lead unit and batteries Safety standards JIS C 1010 1 JIS C 1010 2 31 Japanese Industrial Standard Reference EN61010 1 EN61010 2 31 Insulation class I Pollution degree 2 Indoor use Operating altitude 2000m max above sea level Measurement category CAT II AN Maximum working voltage 321341 150V AC 321342 250V AC 321343 300V AC 321344 300V AC 321345 300V AC When the amb
13. ient temperature is raised to 40 C and lowered to 0 C both from 23 C variations shall The specified tolerances shall be met after the tester has been left under the condition of 90 relative Within 2 of the scale length when tested at the infinity scale mark by inclining the tester 90 forward When a vibration frequency of 25 Hz and a peak to peak amplitude of 1 mm is applied for 20 minutes When a half sine pulse shock of a 1000 m s peak acceleration is applied in both forward and reverse Accessories Name Model Part Number Quantity Description Battery R6P AA SUM 3 or equivalent 8 Contained in the main unit 1 Measuring lead unit 98050 1 Equipped with both earth and line leads 2 Carrying case B9600HA 1 With a test lead storage bag 3 Strap B9303XE 1 e User s manual IM321341 01E 1 This manual Optional Accessories Name Model Part Number Description 1 4 Probe tip B9600GN General purpose gt 2 B9600NW With a hook B9600NX With extension VJ B9600NZ Pointed B9635JK Pickax shaped 3 5 Probe tip storage bag B9600NV 6 Probe with a switch 98051 U 7 Lead for guard terminal 321803 Supplies 4 m Name Part Number Description GN JK R 1 Measuring lead unit 98050 Equipped with both earth and line leads _ CS St 2 Carrying case B9600HA With a t
14. ing This Manual 1 The contents of this manual are subject to change without prior notice 2 If any questions arise or errors are found or if any information is missing from this manual please inform Yokogawa 3 Yokogawa is by no means liable for damage resulting from the misuse of this product by the user 4 This manual is intended to explain the function of this product Yokogawa does not warrant that the functions will suit a particular purpose of the user IM 321341 01E lt 2 gt
15. t touch the measured object the EARTH or LINE terminals or the GUARD terminal 2 During the measurement of AC voltage e There is AC voltage at the GUARD terminal during the measurement of AC voltage Do not touch the GUARD terminal e Do not press the switch when measuring the AC voltage 3 Immediately after the measurement of insulation resistance e The probes or measured object may remain highly charged Do not touch them immediately after measurement 4 Probe e Use the dedicated probe supplied by Yokogawa for the instrument e Do not use a deteriorated or damaged probe e Do not attach detach the probe to from the instrument prior to releasing it from the measured object 5 Protection e If there are any cracks or other damage in the case because of being dropped or struck the instrument may not be safely insulated Do not use the instrument before any remedial measures are taken 6 Object to be measured e When insulation resistance is measured turn off the power to the measured object e When the instrument is used in a location where an electric current is flowing never touch the power line Use rubber gloves as a safety precaution 7 Replacement of batteries e Prior to detaching the cover for replacing the batteries release the probe from the measured object and turn off the switch e Do not touch the measurement switch during replacement Otherwise a high voltage may be produced 8 Operating Environment e Do not operate the instrument
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