8
INS0228 July 2020
2 .6
Po w e r Sa v i n g St a n d b y M o d e
I f t he lum inom et er is on but has not been used for 19 m inut es, it will
beep every 10 seconds for 1 m inut e, and t hen t urn off. I f any key is
pressed during t hat t im e t he lum inom et er will reset t he St andby Mode
count down. The St andby Mode set t ings can be changed ( see sect ion
3.11
) .
To t urn t he lum inom et er back on, sim ply press t he
but t on.
2 .7
I n t e r n a l Ca l i b r at i o n
When t he lum inom et er is t urned on ( see sect ion
2.3
) , it perform s an int ernal calibrat ion, as t he
display count s down from 15 t o 0 seconds.
N OTE: During t he calibrat ion sequence, t here m ust
not be a t est ing device in t he lum inom et er and t he
lid m ust rem ain closed. I f t he
icon is shown wit h t he arrow flashing,
open t he lid and rem ove t he t est ing device from t he lum inom et er . I f
t he
icon is flashing, close t he lid. I f it is st ill flashing, m ake sure t he
rubber flap covering t he RS232 port is t ucked under t he lip and is flat .
TI P: The
but t on can be pressed at any t im e t o access t he set - up
m enu opt ions ( see sect ion
3
) .
When t he calibrat ion is com plet e, t he lum inom et er is ready to perform
a sam ple m easurem ent .
For det ails of how to perform a sam ple m easurem ent
refer t o sect ion
4
.
N OTE: When t he lum inom et er is ready t o perform a
m easurem ent , wit h t he lid closed and no t est ing
device present , t he lum inom et er will aut om at ically
perform
a
recalibrat ion
cycle
under
any
of
t he
following
circum st ances:
•
The user presses and holds down t he
but t on for 1 second.
•
The lum inom et er is used in an environm ent where t he
t em perat ure changes significant ly ( t ypically m ore t han + / - 5
o
C) .
2 .8
Lo w M e m o r y W a r n i n g
The lum inom et er can st ore up t o 2000 t est result s
in it s int ernal m em ory. When t he m em ory is m ore
t han 95% full ( i.e. less t han 100 t est s rem aining)
t he follow ing warning sym bol is displayed.
When t he m em ory becom es com plet ely full, no
addit ional t est s can be perform ed unt il t he m em ory is eit her erased
or uploaded t o t he PC ( see sect ions
3.6
and
5
respect ively ) . Test can
be perform ed if Save Test is t urned off ( see sect ion
3.13
)
