What is the resistance reading at "2" on the megger scale shown in figure "A" of the illustration? Illustration EL-0044
• Megger scale layout – which side of the scale is in megohms and which side is in ohms/kilo-ohms • How the pointer position marked "2" on the lower arc lines up with the upper scale markings • The difference between a reading in megohms (MΩ) and in ohms (Ω or kΩ)
• Look closely at where the index position "2" on the bottom arc points on the upper scale: is it on the left (megohm) portion or the right (ohms/kΩ) portion? • What number is directly above that point, and what unit label is printed on that part of the scale? • If that number were in kilo-ohms, how many ohms would it be? If it’s in megohms, how many ohms would it be? Which of the choices best matches that magnitude?
• Be sure which unit you are reading at position "2" – megohms vs. ohms/kilo-ohms • Confirm the exact numerical marking above the "2" index, not just estimating between numbers • Check that your final choice matches both the number on the scale and the correct order of magnitude (ohms vs. thousands of ohms vs. megohms)
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