#61-791 MEGGER® Hand-held Insulation & Continuity Tester Probadores manuales de aislamiento y continuidad Appareil de poche pour la mesure de l'isolement et l'essai de la continuité SAFETY WARNINGS Safety warnings and precautions must be read and understood before the instrument is used. They must be observed during use. The circuit under test must be switched off, de energised and isolated before Insulation or Continuity tests are made. The test button must not be held down while connecting the test leads or while changing ranges. (May cause `Live Circuit Warning` to become inoperable). The Voltage warning does not function if OFF or is selected. During an insulation test, connections must not be touched. After insulation tests, capacitive circuits must be allowed to discharge before disconnecting the test leads. Test leads, prods and crocodile clips must be in good order; clean, and with no broken or cracked insulation. Replacement fuses must be of the correct size, type and rating. NOTE THE INSTRUMENTS MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT PERSONS. Symbols used on the instrument: Caution: risk of electric shock Caution: refer to accompanying notes Equipment protected throughout by Double Insulation (Class II) Equipment complies with relevant EU Directives Leads Nulled DISPLAY FEATURES Low Battery 1000V 200 100 M 100 1G 300 10 M High Voltage Default Voltage Fuse Ruptured 400 1M V 100k 500 0 The 61-791 has the following features: 1mA Insulation test current 200mA Continuity test with lead zeroing facility Combined curved Analogue / Digital display Continuity Beeper Auto shut off Display Back light Low Battery indication 250 Volt Insulation 500 Volt 1000 Volt Insulation Default Voltmeter OPERATION Refer to Safety Warnings before using the instrument Preliminary Test lead check 1. Before each use of the instrument, visually inspect the test leads, prods and crocodile clips to confirm that their condition is good, with no damaged or broken insulation. 2. Check continuity of the test leads by firmly shorting the leads together and read the test lead resistance. measurement directly from the display. Backlight operation 1. Turn the instrument backlight `On' by selecting the position. 2. When the backlight is activated, select the desired test position. 3. On completion, select the `OFF' position to de-activate the backlight and conserve battery life. Continuity Testing 1. Turn the instrument `On' by selecting the range. 2. If required, zero test lead resistance by firmly shorting both leads together, wait for the reading to stabilise and press the test button. Display of the symbol confirms lead zeroing. Note: Lead zeroing cancels each time the instrument is switched off, or Auto shut off operates. 3. Connect the test probes to the isolated circuit under test. 4. The display shows the resistance value. (Maximum 99,9) 5. On completion switch to `OFF' position. Alternatively auto shut off operates after 5 minutes of instrument inactivity. Continuity Beeper On the position, a continuous beep note sounds when the test leads make contact with resistance less than 5. f contact is maintained, beeping ceases after a few seconds and the resistance value is displayed. Resistance greater than 5 is indicated by an intermittent beep note. Insulation Testing 1. Turn the instrument `On` by selecting the M range. 2. Connect the test probes to the isolated circuit under test. 3. Press and hold the push button; the display shows the insulation value.The reading will remain displayed for a few seconds after the push button is released. As an additional safety feature, instruments with 1000V range will flash symbol before performing a test. 4. Release the push button before removing the test leads (to enable the instrument to discharge the circuit under test). 5. On completion switch to the `OFF' position. Alternatively auto shut off operates after 12 minutes of inactivity. 1000V SPECIFICATION Insulation Test Voltage Accuracy: -0% + 30% (over full operating temperature) into 0 to 1mA load Measuring Range: 0,01M - 999M (Digital) 0,1M - (Analogue) Short Cct. Current: Less than 2mA Accuracy (at 20°C): ± 3% ±2 digits up to 10M ± 5% ±2 digits up to 100M ± 30% up to 999M Output Noise Voltage: Typically 2V pk to pk at 20kHz (at 1mA load) Hum Rejection: <10% error with 100µA RMS (0,2M to ) 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0,01M 0,1M 0.5M 1,0M 10M 1000 V Range Minimum Indicated Value 5M Terminal Voltage 2M 1M 0,5M 500 V Range 250 V Range 0,2M 10M 100M 0,2M 0,5M 1M 2M 5M Load Terminal Characteristics Limiting Value Continuity 0,01 - 99,9 5V ±1V 0,01 - 9,99 ±3% ± 2 digits (ISC >200mA) 10 - 100 ± 5% ± 2 digits (ISC >20mA) Lead res. comp: 0 to 9,99 Hum Rejection: <3% error with 1V RMS (0,2 to 50) Continuity Beeper: On position, the beeper sounds at <5 resistance Environmental Conditions Temperature Coefficient: <0,1% per °C Temperature Range: Operating: -20°C to +40°C (full measurement range) -20°C to +60°C (to 100 M maximum) Storage: -25°C to +65°C Humidity: 90% RH at 40°C max General Specifications Display: 3 digit L.C.D. Maximum reading 999 Auto Shut off: Operates after 5 minutes of inactivity by the instrument in Continuity position and 12 minutes in Insulation position. Beep notes pre-empt auto shut off. The instrument can be switched back on by pressing the test button, or by selecting `OFF` and then the required position. Measuring Range: Open Cct. Voltage: Accuracy (at 20°C): Default Live Circuit Warning When more than 25 V is applied to the terminals, the instruments default to a voltmeter on all switch positions except `OFF' and . In addition, the beeper will sound on all switch positions except `OFF` and . All selected tests will be inhibited except for Insulation tests, which will remain available until the voltage exceeds 55 V. Default Voltmeter Ranges: 25V - 450V a.c. 50/60 Hz ± 2% ±3 digits 450V - 600V a.c. 50/60 Hz ± 3% d.c. - unspecified Automatic Discharge: Capacitive circuits are automatically discharged when the test button is released following an insulation test. Power Supply: 6 x 1,5V cells IEC LR6 type only. Battery life: Typically 3000 x 5 second operations (worst case, with not selected). Battery cells should not be left in an instrument which may remain unused for extended periods of time. Low Battery Indicator: The low battery indicator symbol will appear when the battery cells are exhausted. Battery Replacement: The rear cover must not be opened if the test leads are connected. To remove the rear cover, release the screw at the bottom of the cover and lift the cover upwards.To avoid the possibility of shock, do not press the test button or touch the fuse when changing batteries. Fuse: 500 mA (F) H.B.C.10 kA min (32mm x 6mm) To check this fuse, select M, open circuit the test leads and press the test button until a reading is obtained. Display of the fuse symbol or an error code indicates a ruptured fuse. Located behind the rear cover, this fuse can be replaced by the user. The rear cover must not be opened if test leads are connected. The replacement fuse must be of the correct type and rating. To avoid the possibility of shock, disconnect the battery before touching the fuse. Safety: The instruments meet the requirements for double insulation to IEC 1010-1 (1995) EN 61010-1 (1995) to Category III*, 300 Volts phase to earth, 440 Volts phase to phase, without the need for separately fused test leads. *Relates to transient overvoltage likely to be found in fixed installation wiring. E.M.C. Weight: Dimensions: Cleaning: Meets EN 50081-1 and EN 50082-1 (1992). 530g (including batteries) 195mm x 98mm x 40mm. Wipe disconnected instrument with a clean cloth dampened with soapy water or Isopropyl Alcohol (IPA). Part Number C90 TL - 791 ACCESSORIES Supplied Synthetic zip-up pouch Test leads, prods & crocodile clips Lifetime Limited Warranty This meter is warranted to the original purchaser against defects in material or workmanship for the lifetime of the meter. During this warranty period, IDEAL INDUSTRIES, INC. will, at its option, replace or repair the defective unit, subject to verification of the defect or malfunction. This warranty does not apply to defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the instrument. Any implied warranties arising out of the sale of an IDEAL product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. The manufacturer shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or economic loss. State laws vary, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. IDEAL INDUSTRIES, INC. Sycamore, IL 60178, U.S.A. 800-304-3578 Customer Assistance www.idealindustries.com ND 3357-1 Part No. 6172 - 727 AVERTISSMENTS RELATIFS A LA SECURITE · · Le circuit à tester doit être coupé, désexcité et isolé avant d'entreprendre les essais d'isolement ou de continuité. Le bouton d'essai ne doit pas être pressé pendant le branchement des câbles d'essai. Le voyant Voltage ne fonctionne pas si OFF ou est sélectionné. · · · · · · Pendant un essai d'isolement, le circuit ne doit pas être touché. Après les essais d'isolement, laisser décharger les circuits capacitifs avant de débrancher les câbles d'essai. Les câbles d'essai, les sondes et les pinces crocodiles doivent être en bon état, propres et avec un isolement sans cassures ni fissures. Les fusibles de rechange doivent être de la dimension, du type et de la puissance nominale corrects. Les avertissements et précautions de sécurité doivent être lus et compris avant d'utiliser l'instrument. Ils doivent être observés pendant l'usage. REMARQUE DE CES INSTRUMENTS DOIT ETRE RESERVEE A UN PERSONNEL FORME ET COMPETENT. l'UTILISATION Symboles utilisés sur l'instrument Risque de choc électrique Consulter le Guide de l'utilisateur Équipement entièrement protégé par un isolement double (Classe II). . Équipement conforme aux Directives en vigueur de l'UE Mode D'Emploi Consulter les avertissements relatifs à la sécurité avant d'utiliser l'instrument Vérification préliminaire des câbles d'essai 1. Avant chaque utilisation de l'instrument, inspecter visuellement les câbles d'essai, les sondes et les pinces crocodiles pour confirmer qu'ils sont en bon état, et que leur isolement n'est pas cassé ou fissuré. 2. Vérifier la continuité des câbles d'essai en court-circuitant fermement les câbles et en lisant leur mesure de résistance directement sur l'affichage. Rétro-éclairage 1. 2. 3. Mettre le rétro-éclairage de l'instrument en service "ON" en sélectionnant la position Lorsque le rétro-éclairage est activé, sélectionner la position d'essai requise. . A la fin de l'essai, sélectionner la position "OFF" pour désactiver le rétro-éclairage et conserver les piles. Essai de continuité 1. 2. Mettre l'instrument en service "ON" en sélectionnant la gamme . Si nécessaire, mettre à zéro la résistance des câbles d'essai en court-circuitant fermement les câbles, attendre que la lecture se stabilise et presser le bouton d'essai. L'affichage du symbole confirme la mise à zéro. Nota: La mise à zéro des câbles est annulée à chaque fois que l'instrument est arrêté ou que la fonction Arrêt automatique est activée. 3. 4. 5. Brancher les sondes d'essai sur le circuit isolé à tester. L'affichage indique la valeur de la résistance. (Maximum 99,9 ). A la fin de l'essai, sélectionner la position "OFF". Sinon, la fonction d'arrêt automatique sera activée après 5 minutes d'inactivité de l'instrument. Avertisseur de continuité - Sur la position , un tonalité continue est émise lorsque les câbles d'essai sont en contact avec des résistances inférieures à 5 . Si le contact est maintenu, la tonalité cesse après quelques secondes et la valeur de la résistance est affichée. Les résistances supérieures à 5 sont signalées par une tonalité intermittente. Essai d'isolement 1. 2. 3. Mettre l'instrument en service "ON" en sélectionnant la gamme M. Brancher les sondes d'essai sur le circuit isolé à tester. Presser et tenir appuyé le bouton d'essai; l'affichage indique la valeur de l'isolement. La lecture restera affichée pendant quelques secondes après le relâchement du bouton d'essai. En sécurité supplémentaire sur les instruments ayant une gamme de 1000V, le symbole 1000V clignotera avant d'effectuer un essai. Relâcher le bouton poussoir avant de débrancher les câbles d'essai (pour permettre à l'instrument de décharger le circ ...