Fluke 177/EFSP Manual - Page 9

Manual Ranging and Autoranging The Meter has both Manual range and Autorange modes. ⇒ In the Autorange mode, the Meter selects the range with the best resolution. ⇒ In the Manual Range mode, you override Autorange and select the range yourself. When you turn the Meter on, it defaults to Autorange and Auto Range is displayed. 1. To enter the Manual Range mode, press RANGE. Manual Range is displayed. 2. In the Manual Range mode, press RANGE to increment the range. After the highest range, the Meter wraps to the lowest range. Note You cannot manually change the range in the MIN MAX AVG, or Display HOLD modes. If you press RANGE while in MIN MAX AVG, or Display HOLD, the Meter beeps twice, indicating an invalid operation, and the range does not change. 3. To exit Manual Range, press RANGE for 1 second or turn the rotary switch. The Meter returns to Autorange and Auto Range is displayed. True RMS Multimeters Manual Ranging and Autoranging Power-Up Options To select a Power-Up Option, hold down the button indicated while turning the Meter from OFF to any switch position. Power-Up Options are cancelled when the Meter is turned OFF. Button Power-Up Options AutoHOLD H K switch position turns on all LCD segments. L switch position displays the software version number. mL switch position displays the model number. M Disables beeper. (bEEP) R Enables "Smoothing" mode. (S---) Dampens display fluctuations of rapidly changing inputs by digital filtering. B (YELLOW) Disables automatic power-down ("Sleep mode"). (PoFF) Sleep mode is also disabled while the Meter is in a MIN MAX AVG Recording mode, or the AutoHOLD mode. S Disables automatic 2-minute backlight timeout. (LoFF) (Model 177 and 179 Only) 5