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Selecting Measurement Time
Select measurement time depending on purpose.
7 modes are available for measurement time.
Select the mode with long measurement time when repeated accuracy is required such
as when measuring object of low luminance.
∗ Setting at the shipment from factory : AUTO.
Zero Calibration
Super-FAST
Not be done every time ∗1
FAST
SLOW
Done every time
Super-SLOW
LTD.AUTO ※2
automatically
※3
AUTO
MANUAL
∗ Zero calibration is performed automatically one minute after previous measurement.
∗ 2 Selects FAST/SLOW automatically depending on luminance. Luminance for which FAST/SLOW is switch-
able is as follows for measuring angle 1˚.
FAST → SLOW: L
=20 cd/m
v
SLOW → FAST: L
=40 cd/m
v
∗ 3 Selects the measurement time automatically depending on luminance.
For measuring angle 1°, when luminance is higher than 20 cd/m
AUTO mode. When luminance is 20 cd/m
as following examples. The higher limit is 60 s.
L
V
Measurement Time
Operation Procedure
2
2
1.
ESC
Press
key when menu or target
value setting menu appears.
Measurement screen appears on LCD screen.
2.
Make sure that [ ] appears on bottom
left of measurement screen indicating
it has not been set for SHIFT mode.
If [SFT] appears instead, it means that
instrument is to operate in SHIFT mode.
Press SHIFT key to cancel SHIFT mode.
Measurement Time calculated by formula
(Time for integration x 2 +Time to open/close
shutter + Time for calculation) indicating time
needed for actual measurement.
0.5s approx.
1s approx.
3s approx.
12s approx.
1s or 3s approx.
1s to 60 s
1s to 60 s (Every 1s)
or lower (Measurement is redone in SLOW mode.)
2
pt or higher
2
2
or lower, the measurement time is calculated depend on luminance
20.0 cd/m
15.0 cd/m
2
3 s approx.
7 s approx.
3
3
1
1
28
, the measurement time switches as LTD.
2
10.0 cd/m
6.6 cd/m
2
2
14 s approx.
30 s approx.
7
7
<
CH00:
DEFAULT
Lv ------
x ------
y ------
<
>
MODE
SINGLE
[
] =
Time for integration
Time for sensor to measure light
indicating "exposure time".
300 ms
300 ms
1300 ms
1300 ms x 4 times
300 ms or 1300 ms
4.6 cd/m
2
2
60 s approx.
5
5
4, 6
4, 6
<
>
>
ANGL
1° VIEW
<
>
SPD
AUTO
<
>
SYNC
NO SYNC
<
>
cd/m
2
LENS
STANDARD
<
>
MEM
AUTO NUM
<
>
MEMORY DATA
MOOO:(NO DATA)
Lv ------
x ------
y ------
[ 2° ]
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