Troxler 4640-B - Setting the Count Time; Setting the Time and Date

SETTING THE COUNT TIME
Typically, the count time may be selected once and will not require
changing except for special measurements. Increasing the count
time improves the measurement precision.
Press 〈TIME〉 for the display:
- Count Time -
xx min.
Do you want
to change ?
Press 〈YES〉 for the display:
Sel: 1- 0.5 min.
2- 1 min.
3- 2 min.
4- 4 min.
3. OPERATING THE GAUGE
Press 〈1〉, 〈2〉, 〈3〉, or 〈4〉 to select the desired count time. The
display will return to Ready mode.
SETTING THE TIME AND DATE
Press 〈SHIFT〉 and 〈SPECIAL〉. The display will be:
SPECIAL FUNCTION
YES- next menu
1- Surface Voids
2- Recover Erase
Model 4640-B 3–5