307A Manual(1832 IN)
Contents
1. the test leads and fuse as per the 7 6 procedure Connect the test leads to the circuit to be measured and wait for a few seconds The instrument will automatically discharge any remaining energy which could be present on the circuit and will check for voltage at the same time Once you are sure that the circuit to be tested is not energized then press the button for a short test duration or press and turn the button for a long test Once you end the test allow a few seconds for the instrument to automatically discharge the circuit 14 11 11 1 Battery amp Fuse Replacement Battery Replacement YourAnalog insulation tester s battery is situated under the tester The Bat OK will not lit when battery need to be replaced Disconnect the test leads from the Instrument remove the battery cover and the batteries Replace with eight 1 5V R6 or L6 batteries taking care to observe the correct polarity Replace battery and the battery cover 11 2 Fuse replacement The Fuse is located next to the Batteries To replace Fuse proceed as per Battery replacement to open the battery cover then remove and replace the fuse located under the battery holder Only replace with same specification fuse 0 5A 15 12 13 Calibration amp Servicing Contact your nearest distributor about Calibration Certificate and Servicing Before returning the Instrument ensure that the leads have been checked for continuity and sig2. SI situ uopnq 1591 ss id ou op OV 104 TrIV33N3S T o up AOOOL 404 Z q ldiinui pue A0SZ 40 abuel ay peay uolinq 1s BU 5504 z Aq plAIp 40 S 0 Aq ldninuu Agog 104 llo 1Ip 3s JOPUN JNOIIO OY o spe 1s v JOOUUOD t W y Peay olinq 159 BY SSA Y JA17 JOU SI n9119 BY 49 FAI 104 SI ay Y29049 u 6 ey uo s au 049Z o qY 0192 suuuo au 1sn pe pue zu wn su BU o spe l v o uuoO Z pue uonnq 1s 1 ssaid spe 3s u POUS Z A0001 40 A00S A0SZ eBueL 009 40 wyo paulsap ul199l S BelloA 1S 1 uone nsui p uts p 2U 12 l sebuey SlS3l ALINNILNOD sebuey IN SIS41 NOILVINSNI O19Z SPIEMO llulJu WO HuIMS pinous u spe l 3S y WOUS poul snonunuo uoyinq 159 94 UIN pue ss iq ME YMS qu uini sul o spe 1891 JOOUUOD Z Buip ooid p vejd aq o sp u s neq y GOO9 L VE 0 erow jou s op Jajulod ay JI uolinq is ay pue X90949 Ye 0 YAMS SMOSH TV L N 3S o N3419 o spe 1s 6uno uuoo ioJ q uonnq 159 v ss id suononi su IIN u ynsuo9 lenpiAIpui paurei 1Ju duuoo e Aq p sn aq luo 1snui Ju uuni sui SIUL YALSAL ALINNILNOD NOI
3. or unnecessary consumption Badly insulated circuits can create leakage current which can be dangerous and trip your GFCI RCCB or ELCB Each country regulate those levels at which the insulation is acceptable Generally Insulation resistance measurements are done between each conductor and the earth and between each conductors CONTINUITY Checking the continuity of wires complete circuits connections closure of contacts circuit breakers fuses bounding resistance of connections etc Are all very important ee 7 Instrument Layout FOR CONTINUOUS TESTING PRESS AND TURN 1 Test Button Switch 2 Function Selector 3 Battery OK indicator 4 Mirror Scale 5 Live Circuit Warning Light 6 Test Leads and Fuse Zeroing Knob 8 Lid Instruction Label SPUODSS MA e JO YNI y O p uuo2 II s Bie spe 3S BY lluM uopnq 1591 y Buise iu Aq siy piony AjyoINb oo ase SpE 159 J dn y A8 Aew uoneinsui u Ju uuniisui v Sulsn AI S v 4353204 LON spunos 1 zznq Bulusem y 10 M si qu il PN 4AM u uun Aue ye Jl 184 S49EYO 61111 1onpuoo FAIT eq ou 18 N0119 u 1 i NOlInVO44d ALSAVS uonnq S9 v WN pue ss id uonei do snounuo JO poul AjINUUOD JO uonelnsuj s li eq 1 UPD 1 ul loA OV JUDLUNIJSU BU JO pow nez p y
4. probes is higher than 65Vdc and the test button is not pressed 10 4 AC Measurement The AC measurement is automatic on this instrument as soon as AC voltage is present on the test leads the instrument will display the AC voltage from 20 to 600Vac on the linear scale 9 10 5 Low ohms measurement 0 500 PRESS TO TEST LOCK FOR CONTINUOUS TESTING PRESS AND TURN Always check for voltage before testing and measuring on a circuit This instrument is intended for measuring Low and Insulation resistance on un energized circuits only Use the procedure explained at points 7 2 7 3 7 4 The first procedure to follow is to zero the test leads and the fuse resistance The instrument is equipped with a Zero Knob First short circuit the test leads by connecting them together then press the test button and adjust the zero knob until the pointer is precisely on the of the 500 scale Use the mirror scale to be precise With the pointer Connect the test leads to the circuit to be measured end For short test press button and keep ADJUST pressed For long test or hand free Measurements press and turn the test button 10 10 6 Low ohms measurement 0 3 PRESS TO TEST LOCK FOR CONTINUOUS TESTING PRESS AND TURN Always check for voltage before testing and measuring on a circuit This instrument is intended for measuring Low and Insulation resistance on un energized circuits only Use the
5. procedure explained at points 7 2 7 3 7 4 The first procedure to follow is to zero the test leads and the fuse resistance The instrument is equipped with a Zero Knob First short circuit the test leads by connecting them together then press the test button and adjust the Zero knob until the pointer is precisely on the of the 3 scale Use the mirror scale to be precise with the pointer Connect the test leads to the circuit to be measured b For short test press button and keep ADJUST pressed For long test or hand free Measurements press and turn the test button 11 10 7 Insulation Resistance Measurement 250Vdc PRESS TO TEST A LOCK FOR CONTINUOUS TESTING PRESS AND TURN Always check for voltage before testing and measuring on a circuit This instrument is intended for measuring Low and Insulation resistance on un energized circuits only Use the procedure explained at points 7 2 7 3 7 4 Check the test leads and fuse resistance byzeroing the test leads and fuse as per the 7 6 procedure Connect the test leads to the circuit to be measured and wait for a few seconds The instrument will automatically discharge any remaining energy which could be present on the circuit and will check for voltage at the same time Once you are sure that the circuit to be tested is not Energized then press the button for a short test duration or press and turn the button for a long test Once you end
6. the test allow a few seconds for the Instrument to automatically discharge the circuit 12 10 8 Insulation Resistance Measurement 500Vdc PRESS TO TEST A LOCK FOR CONTINUOUS TESTING PRESS AND TURN Always check for voltage before testing and measuring on a circuit This instrument is intended for measuring Low and Insulation resistance on un energized circuits only Use the procedure explained at points 7 2 7 3 7 4 Check the test leads and fuse resistance byzeroing the test leads and fuse as per the 7 6 procedure Connect the test leads to the circuit to be measured and wait for a few seconds The instrument will automatically discharge any remaining energy which could be present on the circuit and will check for voltage at the same time Once you are sure that the circuit to be tested is not energized then press the button for a short test duration or press and turn the button for a long test Once you end the test allow a few seconds for the Instrument to automatically discharge the circuit 13 10 9 Insulation Resistance Measurement 1000Vdc PRESS TO TEST A ui LOCK FOR CONTINUOUS TESTING PRESS AND TURN Alvvays check for voltage before testing and measuring on a circuit This instrument is intended for measuring Low and Insulation resistance on un energized circuits only Use the procedure explained at points 7 2 7 3 7 4 Check the test leads and fuse resistance byzeroing
7. Instruction Manual Model 307AAnalog Insulation amp Continuity Meter Index Page Safety Precautli ons LL u uu aaa 1 Safety Noe uu u a a 2 EFeat r S _ luna aaa lad 2 3 Connections U u S Ru n a sl 3 Specifications 4 Why Test is necessary 5 Instrument Layout u u 6 Lid Instruction Label 7 Preparation for Measurement 8 Functions anen 8 14 Battery amp Fuse Replacement 15 Calibration amp Servicing 16 Cleaning amp 16 Limited One year VVarranty 17 Service nformation 18 YOUR COMMENTS ARE IMPORTANT TO US VVe have become a market leader in test and measurement in recent years due to the company s ability to design and bring to the market innovative instruments and devices vvhich offer real customer benefits The cornerstone of this ability is the company s focus on customer requirements and the emphasis placed on end user satisfaction We appreciate customer information and requirement to improve or design new products 1 Safety Precautions Electricity can cause severe injuries even with low voltages or currents Therefore it is extremely important that you read the following information b
8. LVINSNI SOTVNV SNOILONUYLSNI 9 Preparation for Measurement Before testing Always check the following At Power ON check that Bat OK led lit And check that there is no visual damage to the Instrument or test leads Check the test Leads continuity 1 Connect the leads to the Instrument 2 Zero the test leads while on the 3 ohm range 3 This will indicate your that continuity of the test leads is ok 4 Verify that the test leads insulation is in good condition 10 Functions 10 1 Battery Check PRESS TO TEST A LOCK FOR CONTINUOUS TESTING PRESS AND TURN Turn the function selector to Batt Check This function has a load which draw about 205mA when test is performed and therefore it is doing a worst case battery test Then press the test button the pointer should be in the Bat Good area During the test the bat OK Led on line battery check must lit if the pointer is in the bat Good area 8 10 2 DC Warning The DC warning buzzer will beep continuously when DC voltage is higher than 30Vdc on the test probes and the test button is Not pressed The neon light circuit live will lit when the voltage on the test probes is higher than 90Vdc and the test button is not pressed 10 3 AC Warning The AC warning buzzer will beep continuously when AC voltage is higher than 20Vac on the test probes and the test button is Not pressed The neon light circuit live will lit when the voltage on the test
9. efore using your Analog Insulation Tester 1 1 This Instrument must only be used and operated by a competent trained person and in strict accordance with the instructions We will not accept liability for any damage or injury caused by misuse or non compliance with instructions and safety procedures 1 2 This Instrument must not be used on live circuits Ensure all circuits are de energised before testing See paragraph 1 8 for details of built in warning features should your Analog Insulation tester be connected to a live system 1 3 Never open YourAnalog Insulation Tester except for battery replacement See Battery replacement section 1 4 Always inspect you Analog Insulation tester and test leads before use for any sign of abnormality or damage If any abnormal conditions exist broken test leads cracked case display faulty etc do not attempt to take any measurement or use the tester Return your Analog Insulation tester to your nearest Distributor for Service 1 5 Never replace the protective fuse with any other than the specified or approved equivalent 1 6 Your Analog Insulation tester has been designed with your safety in mind However no design can completely protect against incorrect use Electrical circuits can be dangerous and or lethal when a lack of caution or poor safety practice is used Use caution in the presence of voltage above 24V as these pose a shock hazard 1 7 Pay attention to cautions and warnings which w
10. ill inform you of potentially dangerous procedures 1 8 Your Analog Insulation Tester has a live circuit warning bleeper If it is connected to an AC live circuit a beep of twice the frequency of the voltage present will be heard DO NOT proceed to test and immediately disconnect the instrument from the circuit In addition the warning light will lit if the voltage is above 100Vdc or 70Vac When AC voltage is present before testing it s value is displayed on the AC scale 1 2 Safety Notes Rated environmental conditions 1 Indoor use 2 Installation Category IIL 3 Pollution Degree 2 4 Altitude up to 2000M R Meter is protected throughout by double insulation or reinforced insulation A Warning Risk of electric shock A Caution Refer to this manual before using the meter 3 Features High Quality Taut Band movement Three Insulationtest voltages 1 250Vdc 100M 2 500Vdc 200M 3 1000Vdc 400M Two Continuity Test on Low Ohms 500 amp 3 Designed to meetlEC 1010 1 safety standard Small and Lightweight all in one case do notneed bag AC voltmeter with linear scale upto 600Vac 200mA continuity short circuit current 1mA test currenton Insulation Test at nominal voltage Automatic discharge of capacitanceand inductive circuit with charge stored in the circuit under test Live Warning and display of external voltage presence Fuse Air Gap Crowbar and Overload Protected On line batter
11. ned instrument your complete return shipping address contact name phone number and description of problem 18 B amp K Precision 22820 SaviRanch Parkway Yorba Linda CA 92887 U S A www bkprecision com Printed in Taiwan Ver 1 0 0307 2007 B amp K Precision Corporation
12. ns of damage The batteries are in good condition Cleaning amp Storage Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents If the meter is not to be used for long periods or longer than 60 days remove the batteries and store them separately Warning To avoid electrical shock or damage to the meter do not get water inside the case 16 14 Limited One year Warranty B amp K Precision warrantsto the originalpurchaser that its products and the component parts thereof will be freefrom defects inworkmanship and materials fora period of one year from date of purchase froman 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 asales receipt Toobtain warranty coveragein the U S A this product must be registered by completing the warranty registration form on 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 inciden
13. tal 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 17 15 Service Information Warranty Service Please return the productin the original packaging with proof of purchase to the address below Clearly statein writing the performance problem and return any leads probes connectors and 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 must include paymentin the form ofa money order or credit card Forthe mostcurrent repair charges please visit www bkprecision comand 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 Savi Ranch Parkway YorbaLinda CA92887 www bkprecision com 714 921 9095 Include with the retur
14. y monitoring shows ifbattery is ok 2 Auto null ofthe testleads on continuitytests Very Low Battery Consumption On Load battery check 205mA load for worst case operates on 8dry batteries AA R6P type Mirror scale Push and Turn locking switch for long and hand free testing Designed to meetinternational standards Supplied with High Quality testleads 4 Connections 5 Specifications INSULATION Test Voltage 250Vdc 500Vdc 1000Vdc 10 0 10 0 1096 096 Mirror scale 100M 200M 400M Mid Scale 1M 2M 4M Scale Multiplier x1 2 x1 x2 Accuracy 3 Output Short Circuit Current 1 3mA Regulated Output Voltage up to 1mA current 263 5V 525V 1052V CONTINUITY Low 0 3 0 500 Test Leads Fuse Zero Adjustment by knob Output Short Circuit Current 205mA Accuracy 1 5 of scale length AC Voltage Range 0 600Vac Accuracy 3 of scale length Voltage Warning Warning Light Circuit Live lit from 90Vdc 70Vac Buzzer Beep from 24Vac dc Battery Check Battery Check indicate good batteries from 8Vdc to 13Vdc during a Load test of 205mA Battery OK Battery OK Led lit from 8Vdc and is operative while testing 4 6 Why test is necessary INSULATION Every electrical apparatus and installation need to be safe for the user and for the equipment itself Electrical conductors of electricity need to be insulated from each other so that they do not create electrical hazard
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