Button Functions; Start/Stop Button; Button; Select) Button - AEMC 6470 User Manual

2.5 Button Functions

2.5.1

START/STOP Button

This button starts a measurement and depending on the selected mode (manual
or automatic), the instrument stops the measurement automatically or the user
must stop the measurement by a second push of this button.
A short push (<2s) enables a faster measurement because there is no measurement
of the auxiliary rod resistances. The chain of all displayed results is therefore shorter
than after a long START push.
A long push (>2s) (until the second beep occurs) enables the measurement of all
auxiliary rod resistances.
If the voltage conditions (< 60Vp) on the inputs are met and the connections are
good, the instrument immediately starts the measurement. If an external voltage/fre-
quency appears on the inputs that influences the measurement value significantly,
a warning is given with the NOISE symbol on the display. After the measurement
is stopped, the detected disturbance voltage applied with frequency can be seen
using the DISPLAY button. No access to disturbance voltages is possible during
measurement. When the START/STOP button is pushed, the display returns to the
initial screen.
For DC 2-Wire resistance measurement and the AC 2-Wire measurement in the
coupling function, this button has a second function which allows measurement of
lead resistances for compensation.
2.5.2

Button

Selects the second function (highlighted in yellow) on the buttons.
The symbol appears. This symbol disappears upon pressing the function but-
ton chosen, except if the  button is activated. In this case, it only disappears
when the button is pressed again, or if other function buttons are pressed. This
allows you to rapidly decrease parameters with the  button, without having to
press the button every time.
2.5.3

(SELECT) Button

 - Increases the value of the flashing parameter displayed or selects the next
parameter up. Press the button for a longer time to increase the change of value
speed at a faster rate.
- Decreases the value of the flashing parameter displayed or selects the next
parameter down. Press the button for a longer time to increase the change of value
speed at a faster rate.
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Ground Resistance Tester Model 6470