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KKnoon Probador de resistencia de aislamiento y medición de voltaje CA/CC 1MΩ-200GΩ y 10V-600V con 2000 abalorio y visualización LCD 10V ~ 600V con 100 datos de almacenamiento

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  • ⭐Probador de resistencia de aislamiento: este instrumento aplica la función automática de liberación de voltaje, con alta estabilidad y fiabilidad, cuenta con un máximo de 2000 abalorio, 100 grupos de almacenamiento de datos y rango de medición de resistencia de aislamiento de 1MΩ-200GΩ.
  • ⭐Medición de voltaje CA/CC: el voltaje de salida nominal es variable, fácil de cambiar entre 250 V/500 V/1000 V/2000 V/2500 V a través del botón arriba/abajo. Puede medir voltaje de CA y CC con el rango de 10 V-600 V. Funciona con pilas, con gran visualización LCD digital retroiluminada, fácil de leer.
  • ⭐Resuelve problemas prácticos: es adecuado para medir la resistencia de aislamiento de varios equipos eléctricos y materiales aislantes como transformadores, motores, cables, interruptores, electrodomésticos, etc. Es adecuado para mantenimiento, reparación, prueba, etc.
  • Funcionamiento seguro, portabilidad: indicación de alto voltaje para recordarte un funcionamiento seguro; indicación de batería baja para recordarte reemplazar las baterías a tiempo. El instrumento tiene un aspecto moderno y un rendimiento estable. Construcción a prueba de polvo y humedad que se adapta para uso en exteriores. Viene con una bolsa de almacenamiento con cierre para un fácil almacenamiento y portabilidad.
  • ⭐ Retención de datos y almacenamiento de datos: con función de retención de datos para verificar cómodamente los datos, y puede almacenar hasta 100 juegos del valor de resistencia de aislamiento medido, la navegación y eliminación de datos también se puede operar fácilmente.
  • ⭐visualización LCD grande y fácil de controlar: los botones suaves son fáciles de operar, la gran visualización LCD con retroiluminación brillante, conveniente para verificar los datos medidos de un vistazo incluso en el entorno oscuro. Funda protectora de silicona: protegida con una funda de silicona suave, puedes utilizar el medidor en varias condiciones sin preocuparte de que se caiga o raye por el hardware


Especificaciones:
Voltaje de salida: 250 V/500 V/1000 V/2000 V/2500 V.
Rango de medición:
250V: 1MΩ~10GΩ.
500V/1000V: 2MΩ~20GΩ.
2000V/2500V: 5MΩ~40GΩ.
Voltaje de CA: 10 V ~ 600 V.
Voltaje DC: 10 V ~ 600 V.
Resistencia: 1MΩ~200GΩ
Relación de absorción: sí
Índice de polarización: sí.
Descarga automática: sí.
Voltaje de prueba: sí.
Indicación de alto voltaje: sí.
Indicador de hora de medición: sí.
Material: ABS.
Máx. visualización: 2000 abalorio
Almacenamiento de datos: 100 juegos
Rango: Rango automático
Altitud de funcionamiento: 2000 m.
Temperatura de funcionamiento: 0-35 °C.
Temperatura de almacenamiento: -10 ~ 50 ℃.
Humedad de almacenamiento: Fuente de alimentación: 8 pilas AA de 1,5 V (no incluidas).
Tamaño del artículo: 180 x 140 x 70 mm.
Peso del artículo: 640 g.
Peso del paquete: 978 g.
Tamaño del paquete: 21 x 17,8 x 7,8 cm.
Contenido del paquete:
1 probador de resistencia de aislamiento.
1 cable de blindaje de señal.
2 cables de prueba.
2 clips de cocodrilo.
1 bolsa de almacenamiento.
1 manual (idioma español no garantizado)


Ab
Comentado en los Estados Unidos el 21 de agosto de 2024
No se pudo cargar el contenido.
Pete Lehmann
Comentado en los Estados Unidos el 1 de julio de 2024
Airports run AC constant current series circuits with isolation transformers under every lighting fixture to step-down the voltage and permit the primary current to pass in the event of a single light fixture failure. This system is powered and managed by one or more large Constant Current Regulators (CCRs) which ensure that the current remains constant depending on a number of available settings between 4.7 - 6.8 amps. This is done by adjusting the voltage levels which nominally operate at 1,800 VAC, but can be raised in a matter of milliseconds all the way up to 5,000 VAC in the event of a circuit fault.The primary power cable which runs a complete loop from the CCR, around the entire 4,000' runway, and back to the CCR was unfortunately installed as direct bury. Regardless of how protected these cables are underground, the FAA requires that we perform regular, evenly spaced cable insulation resistance testing using a hand crank or digital megohmmeter and track the trends of the readings over time to anticipate failures prior to them occuring without warning.These "Meggers" weren't very cheap, the airport supply and tool companies offering those models capable of the minimum 2,000 VAC output needed starting at $3,500! That's too rich for a small rural town in Northern Maine to be sure. I'm grateful I found this one for the price it was offered at, but I was concerned that it wouldn't be ideal for our application and require us to become "creative" in order to use it for our purposes. Those concerns were absolutely unfounded, as this unit worked as if it were designed specifically for airport lighting use! We have a physical circuit interrupt and maintenance grounding block called the S1 Cutout which a couple of probe terminal ends I had from another tool fit perfectly into the built in circuit testing socket, and we're now in compliance!Don't hesitate to purchase this if you're in a similar situation at an airport, especially if your lightning vault is equipped with the newer ADB Safegate CCRs and S1 Cutouts. If your system isn't equipped with the ADB Safegate S1 Cutouts, I HIGHLY recommend you procure and install them between every CCR and it's circuit you operate. Nevermind the ease of maintenance those simple accessories offer, I feel that being able to remove the cover from an S1 Cutout and physically isolate the CCRs from the circuits, lock the cover out with a key to prevent anyone from reinstalling the cover allowing for the circuit to become energized, is cheap easy insurance that takes the concept of Lock-Out/ Tag-Out to a whole new level.
The Engineer Critic
Comentado en los Estados Unidos el 12 de diciembre de 2024
Seems to work fine after only basic testing with resistors and ESD bags, and I saw no issues using NiMh AA batteries (qty 8, and a screwdriver is required to install them). I was surprised that ESD bags are not more conductive than the measurements indicated. Note that the 1Mohm-2Mohm range is only measurable when the output voltage is set to 500V or 1000V (I would have expected a reading at 250V but it shows "out of range" -- this actually matches the instruction sheet though I fail to see why). For my basic testing I only used the two outer banana jacks (didn't use the earth ground plug). Note that there are several meters here that look identical so please note differences in the output voltage and measurable resistance range. I would have been happier with this unit if it could output 100V (the minimum output voltage for this one is 250V). One common element is that the word "automatically" seems to be misspelled as "atuomaticaiiy" on all of the units of this particular style. I should also mention that some resistance values, I think
LG
Comentado en los Estados Unidos el 22 de septiembre de 2024
No se pudo cargar el contenido.
Isaias Gomez
Comentado en los Estados Unidos el 13 de septiembre de 2024
We have old machines with wiring harnesses that run through sealtight. Sealtight gets damaged and can sometimes rip one of the cables inside. Can't tell were the break is without removing every wiring hardness out of seal tight. We'll that's were this comes in handy. The megger itself is really nice the cables on the other hand feel a little cheap. Don't really mind since I only need this to find shorts nothing else. To check voltage a use a trusted certified fluke clamp meter. I had some spare fluke cables in my toolbox so I installed them on the megger, they fit right in and I tossed the cheap cable sit came with. Now I got a hell of a unit. I like it so far, does what it says. I can find shorts just like the $1200 meggers some guys in the shop haveYou cant beat the $80 for the quality you get. So 5 start review for now. I will update my review if anything comes up.
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