V-Time / Button - AEMC 5050 User Manual

2.6.2 V-TIME /
First Function - V/TIME
Displays all the secondary information available on the small display.
For Insulation Measurement:
■ The time elapsed since the start of the measurement.
■ The voltage between the instrument's "+" and "–" terminals.
■ Date, time, test voltage and OBJ:TEST number in memory recall mode (MR).
Second Function -
Displays the measurement duration programmed in SET-UP on the small display.
■ The
symbol lights up.
■ Pressing the START button begins the measurement process. The
measurement duration is set to 15 minutes by default.
■ As soon as the measurement starts, the small display counts down
the remaining duration of the measurement. Once it reaches zero, the
measurement stops.
■ As the time-controlled test is carried out, interval samples (resistance/voltage
values as a function of time) are automatically saved. The time between each
sample is set to 30s by default, but it can be changed in the SET-UP menu.
■ The samples are displayed with the R(t) function (see §2.6.3) as long as a
new measurement has not been started. With each new measurement, the
previous sample value is erased from the memory. These sample values are
saved with the last value of the resistance if used with the MEM (memory
storage) function.
NOTE: If the selector switch's position is altered or if the STOP button
is pressed during measurement, the measurement will be interrupted.
This function is only active for insulation measurement.
14
Button
Time-controlled Test
Megohmmeter Models 5050 & 5060