Tektronix j17 Smoke Alarm User Manual


 
Functional Overview
Operating Basics
2-2
The J17 Display
v’
y
b
u’
x
a
BAT MAN SAV AVG SEC REMn E %
WHT
RED
YEL
GRN
BLU
*
*
nm
*
*
*
kcd/m
kluxlm
kfL
m W/m
m AV/sr
m cdkK
SHIFT
2
C
2
The BAT icon flashes
when the battery
voltage drops below
7.2 V. See page 1Ć8.
The MAN icon
shows that manual
ranging is selected.
See page NO TAG.
The SAV icon indicates that the
displayed reading is not being
updated (the HOLD button has
been pressed).
One of WHT, RED, YEL,
GRN, or BLU appears
to show the selected
correction factor.
(White is the default.)
Measurement readouts are displayed as numerical
values in the center of the display, with the appropriate
units shown along the left or right side.
Additional items may appear on the display during
selfĆtest.
The bar graph indicates
the level of the input
signal at the A/D
converter, which affects
the accuracy of the
reading. When using
manual ranging, choose
the range that produces
the longest bar graph
for best accuracy. The
specified accuracy may
not be available if the
graph is at the low end
of the scale.
Functional Overview
Operating Basics
2-2
The J17 Display
v’
y
b
u’
x
a
BAT MAN SAV AVG SEC REMn E %
WHT
RED
YEL
GRN
BLU
*
*
nm
*
*
*
kcd/m
kluxlm
kfL
m W/m
m AV/sr
m cdkK
SHIFT
2
C
2
The BAT icon flashes
when the battery
voltage drops below
7.2 V. See page 1Ć8.
The MAN icon
shows that manual
ranging is selected.
See page NO TAG.
The SAV icon indicates that the
displayed reading is not being
updated (the HOLD button has
been pressed).
One of WHT, RED, YEL,
GRN, or BLU appears
to show the selected
correction factor.
(White is the default.)
Measurement readouts are displayed as numerical
values in the center of the display, with the appropriate
units shown along the left or right side.
Additional items may appear on the display during
selfĆtest.
The bar graph indicates
the level of the input
signal at the A/D
converter, which affects
the accuracy of the
reading. When using
manual ranging, choose
the range that produces
the longest bar graph
for best accuracy. The
specified accuracy may
not be available if the
graph is at the low end
of the scale.