Manual - Martindale Electric
Contents
1. appropriate table in the IEE Wiring Regulations BS7671 to verify the protection device against disconnection time B Bonded Metalwork 1 Set the function switch to P E2 2 Connect the tester to a socket adjacent to the metal work with its mains lead 3 Plug the wander earth lead into the 4mm socket beside the mains inlet on the tester and press the probe firmly onto the bonded metal work Proceed as in A 3 5 WARNING The Wiring Regulations require protective conductors including Bonded Metalwork to be checked with a continuity tester before performing a loop test Care should be taken since when a test is performed on a system with a poor earth the tip of the wander earth lead if connected will be energised for two half cycles C Ipse 1 Set the function switch to Ipsec and proceed as in A 2 4 2 The reading obtained will be the prospective short circuit current Ipsc in kA 3 2 THREE PHASE AND OTHER UNTERMINATED SUPPLIES As an accessory a multi purpose mains lead is available which facilitates the testing of supplies that have no socket outlet This lead has a moulded Euro free socket at one end and double insulated phase neutral and earth tails at the other The earth tail is terminated with a shrouded crocodile clip and the phase and neutral tails have interchangeable fused probes and crocodile clips If there is no neutral available on a three phase system then the neutral probe clip should be taken to eart2. 24A rms for two half cycles at 240V Loop Range 0 to 15Q nominal in steps of 0 010 Lamp ee aia Renal ena Earth Accuracy as sie Gage Disonn Disconn Disconn Reversed Revered Temperature Coefficient 0 1 C P N o o X X o Ipsc Range 0 to 19 99kA in steps of 0 01kA Fuse 5A HBC Anti Surge ceramic P E X oO oO oO X DIN 5 X 20mm Transient Protection VDR at input Lamp on X Thermal Protection Electronic delay Lamp off O Safety EMC To BS EN 50081 1 BS EN 50082 1 LVD To BS EN 61010 1 Installation Category Category III 2g 9 ae MECHANICAL 6 SPARES AND ACCESSORIES Instrument Housing 54 X 190 X 90mm approx 1 Wander Earth Probe Moulded in ABS and polycarbonate 2 Mains Lead standard TL205 3 Fuse Internal FUSE 5A250 Weight 0 4kg Less Carry Case 4 Flying Lead TL85 Display Custom Liquid Crystal 7 REPAIRS Socket 4mm Shrouded Mains CEE22 IEC320 F Please return the tester to Leads Mains lead with moulded plug 13A fuse on 240V versions Wander Earth Lead with Martindale Electric Company Ltd fused retractable probe and 4mm safety Metrohm House plug Penfold Trading Estate Imperial Way Watford WD24 4YY 5 3 ENVIRONMENTAL UK Operating Temperature 0 C to 40 C Storage Temperature 20 C to 70 C Operating Humidity 90 RH max at 40 C 10 11 8 LIMITED WARRANTY Martindale Electric Co Ltd warrant instruments and test equipment manufactured by them to be free from defectiv
3. LY TRAINED PERSON REMEMBER SAFETY IS NO ACCIDENT 2 3 4 5 10 10 11 11 12 aur MARTINDALE ras O ELECTRIC lt 4 PRESS OP P E2 Lo P E1 IPSC Fig 1 Digital Loop and Ipsc Tester 2 GENERAL DESCRIPTION The model LP2000 Digital Loop Tester is a hand held mains powered instrument designed to measure the loop and prospective short circuit current Ipsc of electrical circuits in accordance with the 16th Edition of the IEE wiring regulations BS EN 7671 It has a 3 digit liquid crystal display and is available in various versions The loop is measured over two ranges to 199 9Q with auto range at 15Q and with resolutions of 0 01 and 0 1 The Ipsc is measured over one range of 19 99 kA with a resolution of 0 01kA 4 Three measurement modes selected by the function switch enable loop measurements to be made between the phase and earth conductor in the mains lead and prospective short circuit current measurements between the phase and neutral conductors in the mains lead A reading is initiated and displayed when the test button is depressed The lamps indicate the status of the phase neutral and phase earth conductors and the status of those lamps can be interpreted to determine the absence of a conductor or the reversal of two conductors See Wiring Fault Diagnosis Table Page 8 Fuse protection is provided by a 5A anti surge fuse fitted on the printed c
4. MARTINDALE ELECTRIC LP2000 DIGITAL LOOP AND Ipsc TESTER INSTRUCTION MANUAL Martindale Electric Company LTD 1 SAFETY RULES WARNING DISCONNECT FROM SUPPLY BEFORE OPENING TESTER This tester has been designed with your safety in mind However no design can completely protect against incorrect use Electrical circuits can be dangerous if lack of caution and or poor safety practices are used READ THE MANUAL Read this Instruction Manual carefully and completely Voltages and currents within the capability of this instrument can be hazardous Follow the instructions in this manual for every test Read and understand the general instructions before attempting to use this tester Do not exceed the limits of this tester 2 TABLE OF CONTENTS 1 SAFETY RULES 2 GENERAL DESCRIPTION 3 OPERATING INSTRUCTIONS 3 1 SOCKET OUTLET 3 2 THREE PHASE AND OTHER UNTERMINATED SUPPLIES 3 3 CIRCUITS INCORPORATING RESIDUAL CURRENT DEVICES 4 WIRING FAULT DIAGNOSIS 5 SPECIFICATIONS 5 1 ELECTRICAL 5 2 MECHANICAL 5 3 ENVIRONMENTAL 6 SPARES AND ACCESSORIES 7 REPAIRS 8 LIMITED WARRANTY SAFETY CHECK Double check the lead connections before making a test Are you following all the instructions Use only the specified type of fuse and insert it correctly Do not use leads that are damaged and in need of repair Do not use in wet conditions THIS INSTRUMENT SHOULD ONLY BE USED BY A COMPETENT SUITAB
5. e material or factory workmanship and agree to repair or replace such products which under normal use and service disclose the defect to be the fault of our manufacturing with no charge for parts and service If we are unable to repair or replace the product we will make a refund of the purchase price Consult the Instruction Manual for instructions regarding the proper use and servicing of instruments and test equipment Our obligation under this warranty is limited to repairing replacing or making refund of any instrument or test equipment which proves to be defective within 24 months from the date of original purchase This warranty does not apply to any of our products which have been repaired or altered by unauthorised persons in anyway so as in our sole judgement to injure their stability or reliability or which have been subject to misuse abuse misapplication negligence or accident or which have had the serial numbers altered defaced or removed Accessories not of our manufacture used with this product are not covered by this warranty To register a claim under the provisions of this warranty return the instrument or test equipment to Martindale Electric Co Ltd Metrohm House Penfold Trading Estate Imperial Way Watford WD24 4YY Upon our receipt and inspection of the product we will advise you as to the disposition of your claim Martindale Electric Company LTD Metrohm House Penfold Trading Estate Imperial Way Wat
6. ford Herts WD24 4YY T 01923 441717 F 01923 446900 Email sales martindale electric co uk web www martindale electric co uk LITLP2000 ISSUE 3 08 2004 ALL WARRANTIES IMPLIED BY LAW ARE HEREBY LIMITED TO A PERIOD OF 24 MONTHS AND THE PROVISIONS OF THE WARRANTY ARE EXPRESSLY IN LIEU OF ANY OTHER WARRANTIES EXPRESSED OR IMPLIED The purchaser agrees to assume all liability for any damages and bodily injury which may result from the use or misuse of the product by the purchaser his employees or others and the remedies provided for in this warranty are expressly in lieu of any other liability Martindale Electric Co Ltd may have including incidental or consequential damages Martindale Electric Co Ltd reserve the right to discontinue models at any time or change specification price or design without notice and without incurring any obligation
7. h 3 3 CIRCUITS INCORPORATING RESIDUAL CURRENT DEVICES If a residual current device is incorporated in the installation it may be found that the RCD will trip during a phase earth loop test This is likely to occur where the tripping time is 20ms or less since the tester passes up to 24A to earth during a test for up to 2 half cycles It will therefore probably be necessary to bypass the RCD with links during the test making sure that the links are removed after the test NOTE AN INDICATION ON THE P E LAMP DOES NOT With the RCD bridged the protection of the circuit against earth faults INDICATE A SATISFACTORY EARTH is removed and precautions should be taken to ensure that the circuit is not used when the RCD is in operative WE RECOMMEND THAT IF THIS INSTRUMENT IS USED FOR VERIFYING ELECTRICAL INSTALLATIONS IT IS RE CALIBRATED EVERY 12 MONTHS It will be necessary to isolate the live side of the RCD before inserting and removing links Depending upon the type of installation the electricity supply authority may have to be consulted before the supply can be isolated 4 WIRING FAULT DIAGNOSIS 5 SPECIFICATION The two neon lamps indicate the status of the socket phase neutral and phase earth conductors and so can be interpreted to diagnose the 5 1 ELECTRICAL wiring fault in the socket Supply Voltage 200 to 260V rms 50 60Hz The table below aids this diagnosis Test Current
8. ircuit board and a 13A fuse in the plug Thermal overload protection is provided by inhibiting tests for a ten second period after any test thus preventing over heating of the internal circuitry The principal of operation of the tester is that a voltage proportional to the incoming supply on no load is compared to that same voltage when a 10Q load is connected for two half cycles of the mains supply These signals are combined and fed to a digital volt meter LSI device whose output provides a reading of the loop resistance or Ipsc This device has a hold facility so that after 1 second the reading is retained for as long as the test button is depressed If there is a perturbation on the incoming supply during the measurement cycle the reading could be inaccurate It is therefore recommended that at least two repeatable readings are obtained 3 OPERATING INSTRUCTIONS 3 1 SOCKET OUTLET A Phase Earth Loop 1 Set the function switch to P E 2 Connect the tester to the socket with its mains lead 3 Check that the PE and PN lamps light If either fails to light then do not operate the tester switch off the socket as there may be a wiring fault Correct the fault before proceeding further and check the instrument The Wiring Fault Diagnosis Table on page 8 may be of assistance 4 Ifthe READY symbol on the LCD shows press and hold the test button to obtain a loop reading 5 The reading obtained in 4 should now be compared to the
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