Megger OTS 60AF/2, User Manual

Page: 12 / 104

Preparing the Oil Test Set
1. Adjust the mains voltage selector if necessary and connect the oil test set to a suitable supply. It
is recommended that the green/yellow earth terminal is connected to a known good earth.
2. Switch on both the supply and the test set. The copyright message appears on the display for a
brief time and is followed by the main programme menu screen. The options available from the
main menu are:-
AS 1767-1976
ASTM D877
ASTM D1816-84a
BS 148:1984
BS5730a:1979
BS 5874:1980
CEI 10-1-1987
EN60156 - 1996
IEC 156 1995
OPTIONS
IP 295/83
NFC 27-221: 1974
Γ
OCT 6581-75
SABS 555-1985
STAS 286-81
UNE21-309-89
VDE 0307/84
5 MINUTE TEST
SELF CHECK
CHECK CALIBRATION
CUSTOM
WITHSTAND (PROOF)
The main menu display allocates labels to the three control keys, as their function changes. On switch
on, these will be (from left to right)
s
,
t
, and SELECT. The left and centre keys control scrolling up and
down through the menu options, and the SELECT key activates the highlighted option.
Note:-
The display shows only five menu options at any one time and those in view will depend upon
the last option used. When scrolling, the highlighted option is the one ready for selection.
3. Select the required option and follow the display instructions.
Selecting OPTIONS from the main menu
The OPTIONS sub-menu allows you to set up and retain customised preferences for the following:-
DISPLAY CONTRAST
DISPLAY BACKLIGHT
LANGUAGE
PRINTER CONTROL
TIME / DATE
Note:- All of the settings will remain in the internal memory when the instrument is switched off or the
test chamber cover interlock switch is opened.
Scroll through and select as before. Highlight MENU and press SELECT to return to the main menu.
Display Contrast
When DISPLAY CONTRAST is selected, the centre and left arrow keys can be used to adjust the
readability of the display screen. Press SELECT to return to the OPTIONS sub-menu.
Note:-
A quick way to bring the display contrast into view on the screen is to press the centre key while
switching the test set on. The key must be held for approx. 1 second after switching on.
Display Backlight
When DISPLAY BACKLIGHT is selected, the centre and left arrow keys can be used to switch the
display backlight ‘On’ or ‘Off’ as required. Press SELECT to return to the OPTIONS sub-menu.
12
Operation