QuadTech 1865, Инструкция по эксплуатации, Страница: 85 / 87

Service & Calibration Page 85 of 87
5.3.2 Resetting of Time and Date
If for some reason the backup power supplied by the 3 AA batteries should fail during
shipment of the instrument (due to shock, vibration or extreme temperature) the unit will
lose its zero, time and date, elapsed time and stored setup conditions. An indication of
such an occurrence would be the display of the error message "ELAPSED TIME
ERROR, SET TO 0" when the unit is first powered up. The most likely cause would be
an intermittent connection to the battery due to shock or vibration.
It is very important
that the time and date be reset and the instrument zeroed before proceeding with
any measurements.
Proceed as follows:
1. Press [MENU] key to select menu display.
2. Press Right or Left Arrow key to select Utilities menu.
3. Press Up or Down Arrow key to select Set Time/Date.
4. Press [ENTER] key to activate the entry field.
5. Set the current time and date as instructed on the display, refer to paragraph 2.6.4.6 if
necessary. After the time and date have been reset press [MENU] to return to the
menu display.
6. Press Up or Down Arrow key to select Zero.
7. Press [ENTER] key to activate the Zero routine and follow instructions on the
instrument display.
8. Once the Time and Date have been reset and the instrument zeroed the 1865 is ready
for routine measurements. It's important to note that the elapsed time will have been
reset back to zero during this process.
5.3.3 Loss of Display Contrast
If for some reason the instrument should loose its display contrast it is possible to reset it
easily using the procedure below.
Loss of contrast would exhibit no display at all
when the instrument is powered up.
Procedure for restoring loss of contrast:
1. Consider the SELECT buttons as labeled 1, 2, 3, and 4 from top to bottom.
2. Turn the instrument on and wait 20 seconds (or after High Voltage light flashes)
3. Press [MENU] key twice.
4. Press [SELECT "4"] one time.
5. Press [SELECT "1"] two times.
6. Press [ENTER].
7. Press [SELECT "1"] many times till contrast returns to normal.
8. Press [ENTER].
9. Arrow up to [SAVE SETUP] and save as [DEFAULT].
If the above procedure fails to restore the contrast try repeating again. Failing restoration
of the contrast may be indication of another instrument problem.