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Function keys
Function keys of the multimeter PROTEK 506
This is used tor fix the time function. When this
key is pushed down, the display 0 hours 00 minutes 00
seconds appears in the secondary LCD. Pushing
again the TIME function is cancelled and the normal
model restored. Up and down is used to start time
counting and the buzzer will sound indicating the end
of time counting. ii) FUNCTION This key is used for selecting the alternating function (when position of the rotary selector switch remains unchanged). Position #1 corresponds to the default status (see table).
This key is used to change from automatic to manual
scale mode. The default conditions correspond to the
automatic scale mode. iv) HOLD This key has two functions: one is Holding and another one is the upward or increase function. The upward function is used for time and memory applications. The HOLD function is used to fix the measured value at the time the key is pressed. With the key pressed, hold pointer turns on and the
secondary counter presents the actual value. v) DISPLAY LIGHT This key illuminates the display. A first push turns
on the light and a second one turns it off. vi) MENU FUCTIONS Push once to enter the menu mode. Pushing longer than 1 second cancels the menu mode. When pushing this key, all the menu indicators MIN/MAX/AVG/REL/MEM/KEEP-ON/RS232C appear immediately and only the selected indicator blinks. MAX/MIN/AVG - These are functions to get the maximum, minimum and average values. The relative mode (REL) gives percentage deviation (D) of the data between the background displayed value and the reference value settled with the HOLD key. MEM – Allows to memorize ten measurements recyclable by using the up (5) and down (6) keys. KEEP ON - Allows keeping on the device, disabling auto power off. RS232 - This function mode is independent of other modes and functions (explanation further down).
General power switch- the life time of battery is about 2 months of continuous use.
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