Fluke 1577 FE 1587-1577 Users Manual - Page 23

Table 7. Power-Up Options (cont.) Button Description G (Blue) H t Disables automatic power-off ("Sleep mode"). Display shows PoFF until the button is released. Sleep mode is also disabled while the Meter is in a MIN MAX AVG Recording mode, AutoHold mode, and when performing an insulation test. Starts the Calibration mode. The Meter displays Cal and enters Calibration mode when the button is released. Disables the beeper. The display shows bEEP until the button is released. AutoHold Mode XWWarning To avoid electric shock, do not use the Display AutoHold mode to determine if a circuit is live. Unstable or noisy readings will not be captured. Insulation Multimeters AutoHold Mode In the AutoHold mode, the Meter holds the reading on the display until it detects a new stable reading. Then the Meter beeps and displays the new reading. • Press h to activate AutoHold. Y appears. • Press h again or turn the rotary switch to resume normal operation. MIN MAX AVG Recording Mode The MIN MAX AVG mode records minimum and maximum input values. When the inputs go below the recorded minimum value or above the recorded maximum value, the Meter beeps and records the new value. This mode can be used to capture intermittent readings, record maximum readings while you are away or record readings while you are operating the equipment under test and cannot watch the Meter. MIN MAX AVG mode can also calculate an average of all readings taken since the MIN MAX AVG mode was activated. The Meter tracks the minimum, maximum, and average values for each display which are updated 4 times per second. 13