Get highquality megohmmeters at grainger to help measure electrical resistances of insulators such as cable jackets, electrical wires and motor windings. Megohmmeter teraohmmeter a megohmmeter is an instrument that uses a high value dc voltage to measure the resistance of insulators. View online or download tegam r1m a operation and maintenance manual. Megohmmeter an instrument used in measuring very high electric resistance above 10s ohms.
Jun 15, 2018 the ohmmeter is an instrument which measures resistance of a quantity. Tegam r1ma operation and maintenance manual pdf download. P1, p2 phase number, each test can be stored under a particular phase. The genrad 1863 1864 high resistance megohmmeter is the choice for production and inspection tests. Congratulations on your purchase of a genuine megger multifunction tester. Megohmmeter specification sheet for sale or rental at. It differs from an ohmmeter in that, unlike the ohmmeter, it is able to measure resistances in ohm values of more than one million. The insulation resistance test is the simplest test conducted with a megohmmeter. The following are the most commonly applied predictive maintenance tests performed with a megohmmeter. Megohmmeter or insulation resistance tester is a special type of ohmmeter used to measure the electrical resistance of insulators. All products include a 90 day warranty from test equipment center to ensure your complete satisfaction. Resistance in the electrical sense means the opposition offered by a substance to the current flow in the device. The r1mb is designed to measure insulation resistance in live circuits, which may have.
Fluke 1550b megohmmeter technical data the fluke 1550b is a digital megohmmeter capable of testing switchgear, motors, generators and cables at up to 5000 v dc. The tester has four test functions which allow the user to measure the resistance of a static control. Understanding the structure of the ammeter, voltmeter. This resistance reading is indicated through a mechanical meter movement which.
Beckman l8 megohmmeter and other megohmmeters for sale at test equipment center. It provides flexible measuring, easy programming and accuracy. A megohmmeter, or megger as it is more commonly known, is an electrical test instrument designed to test extremely high resistances by producing a. The microohmmeter is also referred to as a dlro, which is an acronym widely used in industry for digital low resistance ohmmeter and is. Microohmmeters and milliohmmeters on sale at tequipment. The model r1ma series portable megohmmeter is designed to measure very high values of. The value is expressed in megohm 1 megohm 1,000,000 ohms.
The ppm model r1m b handheld voltmeter megohmmeter complies with miltt28800, type iii, class 3, style e for rugged operational environments and shipboard applications. An ohmmeter is an electronic device that measures resistance in an electronic component or circuit. It is the best selection for those applications requiring a lesser voltage and resistance range. Voltmetermegohmmeter complies with miltt28800, type iii, class 3, style e for rugged operational environments and shipboard applications. The ptw system ptu bba syllabus pdf pdf r1ma is packaged in a rugged, weather tight case, designed to. Routinely using a megohmmeter to check insulation in both new installations and as part of a maintenance program is a prudent way to ensure your circuits are safe. Every device has a resistance, it may be large or small and it increases with temperature for conductors, however for semiconducting devices the reverse is true. Supco m501 electronic megohmmeter with service case. Find your megohmmeter easily amongst the 40 products from the leading brands sefelec eaton. The 701 analog surface resistance megohmmeter kit includes a handheld megohmmeter and accessories. The purpose of an ohmmeter, of course, is to measure the resistance placed between its leads.
The ohmmeter is an instrument which measures resistance of a quantity. So for your safety, here are some tips on how to use a megohmmeter, whether yours is bat. The insulation tester is a compact, rugged, reliable, and easy to use. The 2471f megohmmeter provides the operator with a simple, rugged, portable analog unit with selectable test voltages of. Though mechanical ohmmeter resistance meter designs are rarely used today, having largely been superseded by digital instruments, their operation is nonetheless intriguing and worthy of study ohmmeters purpose. It works by using 2 probes to send a current through the circuit and measuring how much resistance, in ohms, that current encounters. Jul 17, 2017 the megohmmeter, or megger, is a measuring device that tests high electrical resistances. Megohmmeters meggers are electrical meters used to check the resistance and condition of the motor windings and the condition of the refrigeration and oil environment around the motor windings. Megger mit4102 insulation tester insulation testers. R1m b90901 rev b voltage and resistance products the model r1m b handheld. The presstotest button has an associated locking feature for continuous test up to threeminutes eliminating the need to manually hold down the button. Megohmmeter model 1015 pdf 0802 technical assistance 800 34391.
Choose from a wide range of specifications to help find the test instruments that can meet your needs. Shop here for batteryoperated, handcranked and lineoperated insulation testers. Timeresistance testing method this method is fairly independent of temperature and often. The meter displays readings on a zonetype scale that indicates bad, caution. The 1863 megohmmeter is the choice for production and inspection tests. Megohmmeters electrical power testing grainger industrial.
Megger clamp on ground testing guide pdf instrumart. Dar r1 min r30 s 2 values to record during a 1 min measurement. Ohmmeter design dc metering circuits electronics textbook. Every device has a resistance, it may be large or small and it increases with temperature for conductors, however for. Apr 08, 2020 an ohmmeter is an electronic device that measures resistance in an electronic component or circuit. The comprehensive product users manual for the amprobe amb2 megohmmeter keywords.
Fluke 1507 digital megohmmeter insulation resistance tester. The model r1ma is a portable megohmmeter designed pt928 6c pdf to measure high values. This computer software andor technical data are tegam proprietary information developed exclusively at private expense. Like any other electrical tool, a meghom is dangerous if not used properly. If in parallel parallel ohmmeter, the instrument will draw more current as resistance. Accidental touching of two conducting wires can result in an. Megohmmeter description the smg5 megohmmeter is for fast, easy, and safe testing of insulation resistance. View and download tegam r1m a operation and maintenance manual online. Beckman l8 for salemegohmmetersmeterstest equipment center. Voltmeter megohmmeter complies with miltt28800, type iii, class 3, style e for rugged operational environments and shipboard applications. Megohmmeter features the 2471f megohmmeter is designed to check the insulation breakdown in a variety of applications requiring a high voltage but low current. Measurement storage and pc interface software make it ideal for preventive. A megger is nothing but a giant ohmmeter that creates a very large dc voltage usually 500 volts dc from its internal battery. The r1m b is designed to measure insulation resistance in live.
R1m a megohmmeter pdf the model r1ma series portable megohmmeter is designed to measure very high values of insulation resistance the instrument has six resistance ranges from. Tegam r1ma megohmmeter, portable 1 mo to 200 go, 3%, 500v, 3. Tegam r1ma megohmmeter, portable 1 mo to 200 go, 3%, 500v. The insulation found on wires, cable, and motor windings serve to protect the wire and keep it separate from other wires. View online or download tegam r1ma operation and maintenance manual. Digitalanalog megohmmeter model 1026 davis instruments. Insulating components, for example cable jackets, must be tested for their insulation strength at the time of commissioning and as part of maintenance of high voltage electrical equipment and installations.
In order to measure the insulation resistance in electrical wiring and electrical motors, electricians use the megohmmeter, also known as a megger. To measure the effectiveness of high voltage resistance, low current measurement techniques are used. This practical, dependable and rugged tester can be used for a broad range of plant and field service applications. The amb5kvd megatest 5000 is for demanding and professional customers who are looking for increasingly accurate insulation measurements. In addition, the model 1026 has an ohmmeter range to measure from. The kit has been specifically designed for evaluating the resistive characteristics of static control surface materials and testing installed surfaces as specified in esd association standards. Microohmmeter dlro bond testing the microohmmeter is used to measure extremely low resistances with high accuracy at specified test currents and is used for contact and bonding applications. The prefix meg describes a numerical value of 1,000,000. An analog ohmmeter scale is backwards from that of a voltmeter or ammeter, the movement needle reading zero resistance at fullscale and infinite resistance at rest. A megger is a highrange ohmmeter, typically used to measure the resistance of wire insulation. Typically these measurements are made on electrical wires and motor windings to test the insulation value of the wires.
Maximum current output is r1m b handheld megohmmeter voltmeter 200m full scale, 500 vdc test voltage product category. View and download tegam r1ma operation and maintenance manual online. The ppm model r1mb handheld voltmeter megohmmeter complies with milt t28800. The megohmmeter, or megger, is a measuring device that tests high electrical resistances. These units perform under the extremes of heat, cold, humidity, shock, vibration, and operator abuse. Understanding insulation resistance testing pdf 0206 rev. It is a shortduration test in which a test voltage is applied for about one minute. The supco m501 electronic megohmmeter is an insulation tester with a 1,000v test voltage for measuring insulation resistance to 1,000m. Also called megger, megohmmeter is an electrical tool used for measuring high insulation resistance in electrical items. The megger mit4102 insulation tester is a versatile instrument that offers testing from 50 to v and 200g though the mit4102 is designed primarily for industrial applications, it offers a wide range of functions that allow it to excel in an exceptionally wide range of applications including electrical installations, cable testing, motor testing, automotive, esd, panel building. This users manual was as current as possible when this product was.
In the simplest ohmmeters, the resistance to be measured may be connected to the instrument in parallel or in series. Description warning for your safety megohmmeter the. Ohmmeter working principle of ohmmeter electrical4u. Description warning for your safety megohmmeter the smg5. R1,r2, r12, rr1 etc circuit, type allows a test to be defined as the circuit type. Ohmmeter, instrument for measuring electrical resistance, which is expressed in ohms. It is not the intent of this manual to go too deeply into the theory and. Using the megohmmeter this is the second lesson in the ammeters, meggers, and wheatstone bridge course. Megohmmeter insulation testers whether you work on motors, generators, cables, or switch gear, the fluke digital insulation resistance testers provide noisefree, reliable results.
The meter will read out in megohms millions of ohms. Beckman l8 products for sale at test equipment center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior to sale. The 1863 will measure resistance at any of five common test voltages up to 500vdc, has fewer controls, and is the lower priced model. Full function protection,anti high voltage circuit design. The ppm model r1mb handheld voltmeter megohmmeter complies with miltt28800, type iii, class 3, style e for rugged operational environments and shipboard applications. Maximum current output is voltmeter, and ohmmeter i. This lesson describes safety issues to consider when using a megohmmeter, how to select the correct megger for the job, setup, and the steps necessary to take a megger reading. It provides v voltage source, monitors current, and displays the resistance between the test points. The r1mb is designed to measure insulation resistance in live. They utilize relatively high voltage upwards of vdc to measure resistance.
Megohmmeter article about megohmmeter by the free dictionary. The model r1me also features a continuity test range with audible beeper for resistances under 40. R1mb90901 rev b voltage and resistance products the model r1mb handheld. With advanced performance, the insulation tester line is designed to be safe, simple to use and gimmickfree. The mft1700 series multifunction tester is a compact instrument designed to.