308A Manual(1851 IN)
Contents
1. CTION switch to ACV Connecttest leads circuit being measured Press TEST button and read the value of voltage form the LCD 472 SPECIFICATIONS test leads Test Lead Continuity 5 Insulation resistance Measuring range 0 200MQ 250V 500V DC 10 Resolution 1 count 100KQ 0 2000MQ 1000V DC 10 Resolution 1 count 1MQ Accuracy 1 5 rdg 5dgt 200MQ range 3 rdg 3401 under 1G0 2000M Q 5 rdg 5dgt under 2G 0 2000M Q Output current 1 mADC min at 0 25MQ 250V range 1 mADC min at 0 5 500 range 1 mADC min at 1M O 1000V range Power consumption Max consumption current approx 250mA AC voltage Range 0 600 Resolution 1V Accuracy 1 5 rdg 3dgt Line frequency range 40 120 Hz Continuity Ohm range 0 200 Resolution 0 01Q Accuracy 1 5 rdg 5dgt Ohm range 0 200000 Resolution 10 Accuracy 1 5 rdg 3dgt 8 Open circuit terminal voltage 4V DC min Short circuit terminal current 210 mA DC min Power consumption Max consumption current approximately 160mA Buzzer sound below under 100 200 range Withstand Meet IEC 1010 safety requirements Category Dimension 170x165x92 mm 6 7x6 5x3 6 inch with housing front cover Weight 1 04 kg battery included Standard Accessories Batteries 1 5V size AA R6 8 pieces Test Leads 1 pair Fuse 0 5A 250V 1 piece Instruction Manual 1 vol MAINTENANCE Caution Always disconnect the test leads fro2. Instruction Manual Model 308A Digital Insulation amp Continuity Meter INDEX PAGE INSTRUMENT 1 2 2 SAFETY 5 3 FEATURE Sic ettet RR eet 4 MEASURING 5 7 5 85 8 9 10 LIMITED ONE YEAR WARRANTY 11 SERVICE 12 INSTRUMENT LAYOUT OO OUTPUT Terminal LCD Display T 2 pa NOT OPERATE I IFLIT OUTPUT Terminal External POWER Voltag e MIN Indicator Ind ANT press To ou oe 2000 POWER 59 P ut LOCK FUNCTION TEST E lt S FUNCTION Button lt Switch INSULATION TESTER Null 2 Adjust INTRODUCTION NOTE This meterhas beendesigned and tested according to IEC publication 348 safety requirements for electronic measuring apparatus IEC 1010 EN 61010 and other safety standards Follow all warnings to ensure safe operation WARNING READ SAFETY NOTES NEXT PAGE BEFORE USING THE METER SAFETY NOTES Read the following safety information carefully before attempting to operate or service the meter Use the meter only as specified in this manua
3. devices before touching or making connections The meter automatically discharge the test circuits when the spring loaded TEST switchis released Important Remove all power tothe circuitunder test when making resistance measurements If any voltage is present in the test circuit the red onthe meter scale plate will light Immediately disconnecttest leads and turn off power to test circuit Function switch The FUNCTION switch is used to select the range or function desired Test switch The TEST switch is normally OFF spring loaded momentary action switch which turn on the meter the momentary action is a safety feature The testvoltage generated by the meter is automatically discharged when the TEST switchis released 5 Always check the following before testing The Battery Low indicatoris not showing There is no visual damage to the instrumentor test leads Test Lead Continuity Select the CONTINUITY function and 20W range Short the test leads together An over range 1 indication will mean that the leads are faulty orinstrument fuseis blown See Fuse Replacement section Insulation Resistance Testing Warning Insulation tests should be conductedon circuits that arede energised Ensure circuits are notlive before commencing testing Select the required testvoltage 250V 500V or 1000V by rotating the function switch Attach the test leadsto theinstrument and to the circuitto be t
4. ested see connect diagram If the LIVE CIRCUIT is lit donot press the test button and disconnect the instrument from the circuit The circuit is live and should be de energised before further testing Press thetest button The value of insulation resistance in megohms will be displayed MAX 600V INSULATION caBLECORE 7 I eR SHEATING COVERING Connect Diagram 6 Caution Never turn the function dial whilstthe button is depressed This may damage the instrument Nevertouch the circuit under test duringinsulation testing When testing is complete ensure thatthe test buttonis released before the test leads are disconnected This is because the system may be charged up and it must be allowed to discharge through the tester s Internal discharge resistor Continuity testing Resistance tests Warning Ensure circuitare not livebefore commencing testing Select the 200 range by rotating the range selector and connect the test leads to the instrument Short the tips ofthe leads Press hold down the test button by twisting it a quarter turn clockwise The display will show the resistance of the test leads Adjustthe ZERO controlto set the reading ofzero Connect the test leads to the circuit undertest Ensure the circuit is not live by checking that the live circuit indicator does notlit Read the value ofresistance from the LCD AC voltage test Set FUN
5. l otherwise the protection provided by the meter may beimpaired Rated environmental conditions 1 Indooruse 2 Installation Category 3 Pollution Degree 2 4 Altitude up to 2000 Meter 5 Relative Humidity 80 Max 6 Ambient Temperature0 40 C Observe the international electrical symbols listed below n Meter is protected throughout by double insulation orreinforced insulation A Warning Risk ofelectric shock A Caution Refer to this manual before using the meter Alternating current FEATURES 3 1 2 Digit Insulation Tester 68mm 2 677 x34mm 1 33 large LCD display Three Insulation test voltage 250V 500V 1000V External voltage warning indication Automatic circuit discharge Test Insulation at rated voltage intoa 1mAload 200 mA continuity short circuit testcurrent AC voltage measurement Fuse protection Meet IEC 1010 BS 16 edition MEASURING METHODS Operation caution Observe all safety precautions when the FUNCTION switch is set to either the 200M 250 500V or the 2000M 1000V position Connectthe meter test leads the circuit under test before operating the TEST switch Do not touch the clip ends ofthe test leads when the TEST switch is pressed Some electrical equipment especially cables may retain electrical charge when disconnected from the line Itis good practice to discharge such equipment with grounding straps orother suitable
6. m the instrument before attempting battery or replacement Batteries replacement Please replace batteries when the Battery Low indicator was shown onthe LCD Disconnect the test leads from the instrument remove the battery compartmentlid and the batteries Replace with eight 1 5V AA R6 batteries taking care to observe correct polarity Alkaline batteries are recommended Replace the battery compartmentlid Fuse Replacement Open the battery compartmentlid Remove the fuse cove and theold fuse and replace with the new one Replace the fuse cover and screw the battery compartment lid before using the tester Cleaning and storage Periodically wipe the case with adamp clothand detergent do notuse abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store Them separately WARNING To avoid electrical shock or damage to the meter do notget waterinside the case 10 Limited One year Warranty B amp K Precision warrants the original purchaser that its products and the component parts thereof will be free from defects in workmanship and materials for a period of one year fromdate of purchasefrom an authorized B amp K Precision distributor B amp K Precision will without charge repairor replace atits option defective product or component parts Returned product must be accompanied by proofof the purchase date in the form of asale
7. oney order orcredit card For the most current repair charges please visit www bkprecision com and click on service repair Return all merchandise to B amp K Precision with pre paid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North American is included for Warranty Service only For overnightshipments and non North American shipping fees please contact B amp K Precision B amp K Precision 22820 SaviRanch Parkway YorbaLinda CA92887 www bkprecision com 714 921 9095 Include with the returned instrument your complete return shipping address contact name phone 12 B amp K Precision 22820 Savi Ranch Parkway Yorba Linda CA 92887 U S A www bkprecision com Printed in Taiwan Ver 1 0 0307 2007 B amp K Precision Corporation
8. s receipt Toobtain warranty coveragein the U S A this product must be registered by completing the warranty registration form www bkprecision com within fifteen 15 days of purchase Exclusions This warranty does not applyin the event of misuse orabuse of the product or asa result of unauthorized alterations orrepairs The warrantyis void if theserial number is altered defaced orremoved B amp K Precision shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some states do not allow limitations of incidental or consequential damages So the above limitation or exclusion may not apply to you This warranty gives you specific rightsand you may have other rights whichvary from state to state B amp K Precision 22820 Savi Ranch Parkway YorbaLinda CA92887 www bkprecision com 714 921 9095 11 Service Information Warranty Service Please returnthe productin the original packaging with proof of purchase to the address below Clearly state in writing the performance problem and return any leads probes connectors accessories that you are using with the device Non Warranty Service Return the product inthe original packaging to the address below Clearly state in writing the performance problem and return any leads probes connectors and accessories that you are using with the device Customers not on open account mustinclude paymentin the form ofa m
Download Pdf Manuals
Related Search