T_J16 T J16

User Manual: T_J16

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J16
[FEATURES
R
C1gifl
LED
137cadolrf
Eight
Silica[
SerrscrPrzbvs
tluicl
;ly
Interchange
¬
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Recr
;libraiion
Accurate
Spectrsl
End
Cosrr
;e
cot'rr
cliaus
11~vtrlc
and
US
Vers"Ons
Available
o
AC
or
Internal
Pechsrge
ble
Eaftery
Versions
E
Auplicafiun
Moles
Available
BENEFITs
Easy
to
Pead
in
DNrk
Areas
Rugged
but
Accurate
P
1!rfspi-ble
to
Vany
Light
h{easurement
Meeds
Use
Anywhere
J16
with
optional
probe
.
J6523
J6501
J6502
-A
J6503
J16
PHCTOMETEC/RACICMETER
The
Tektronix
J16
is
a
portable
digital
photometer/
radiometer
capable
of
making
a
wide
variety
of
fight
measurements-in
the
laboratory,
in
the
field,
or
on
the
production
11oor
.
A
J16
System
consists
of
a
J16
mainframe,
andone
of
eight
detachable
probes
which
can be
either
mounted
on
the
J16
or
on
the
end
of
an
extension
cable
.
All
probes
have
a Hold
switch
which
allows
thedisplayed
reading
to
be
held
.
Eight
quickly
interchangeable
probes
are
available
for
measuring
illuminance,
irradiance,
luminance,
light-
emitting
diode
output,
and
relative
intensity
.
Recalibra-
tion
is
not necessary
when
probes
are
interchanged
.
Connection
of
a
probe
to
the
J16
automatically
selects
the
correct
front
panel
units
indicator
.
The
3
112
digit
LED
display
can
be
easily
read
under low
ambient
conditions
.
All
probes
use
silicon
photodiodes
individually
corrected
with
multi-element
glass
fillers
for
maximum
stability
and
accuracy
.
The
optional
BCD/analog
output
feature
(Option
07)
allows
the
user
either
a
BCD
output
o1
the
displayed
reading
or
an analog
signal
(level)
proportional
to
the
light
falling
upon
the
sensor
.
The
J16
can be
also
used
with
Tek
MI
5010/50M30
system
for
interface
with
a
GPIB
system
Under
normal
usage,
the
internat
rechargeable
nickel
cadmium
batteries
will
operate
the
J16
for
four
hours
.
An
ac
power
supply
is
recommended
far
continuous
operation,
Power
supplies
or
battery
packs can be
changed
quickly
by
removing
four
screws on
the
J1
6's
rear
panel
The
cabinet
and
probes
have
an
internal
threaded
socket
(1/4"
x
20")
for
convenient
mounting
on a
tripod or
optical
bench
.
J6504
J6505
J16-TV
PACKAGE
The
J16-TV
package
is
an
excellent
transfer
mechanism
which
provides
a
simple,
accurate
method
for
adjustment
of
monitor
screen
color temperature
.
The
primary
colors
are
measured
and
adi,usted
to
produce
white
color
temperature
balance
.
The
J16-TV
with
optional
J6503
or
J6523
measures
monitor
screen
brightness
on
both
color
and
black
and
while
monitors
.
Other
applications
include
measurement
of
studio
lighting,
camera
lighting,
and
illuminalion
of
work
areas
.
The
16-TV
package
includes
:
J16
Battery-
Operated
Photometer,
J6502-A
Irradiance
Probe,
light
occluder,
probe
extension
cable,
and
battery
charger
See
Application
Note
58A-2926-1
for
additional
information
.
J6511
(shown)
J6512A
LED
Adapter
with
extra
LED
Holders
(included
with
J6505)
014-0047-00
CHARACTERISTICS
J16
MAINFRAME
Display-3112
digit
LED
readout
and
three
LEDs
automatically
indicating
correct
units
for
probe
in
use
.
Metric version readout
is
also
available
(Option 02)
.
Stability
-
:5
2
%
per
year
.
Linearity-<_
2%
over
entire
range
(enables
single
point
calibration),
Integration
Time
-
^
100
ms
.
Calibration
-Electrical
calibration
of
the
Jib
mainframe
is
performed
wile
a
calibrated
voltage
source
or
DVM
traceable
1o
NBS
.
Calibrated
probes can be used
with
anyJ16
without
additional
calibration
.
POWER
REQUIREMENTS
Standard
and
Opt
.
01--Has
internal
rechargeable
NiCad
batteries
that
require
16
hours
for
a
lutt
charge
.
The
J16
will
operate
nominally
four
hours
continuously
on a
charge
.
For
continuous-operation
an ac
power
supply
is
recommended
.
Opt
.
03
and
Opt
.
04-AC
only
operation,
no
internal
batteries
.
J16
used
to
mensure
pulsed
light
source
.
Refer
fo
Application
Note
58A-27(12-1
.
To
mdf
:r,
call
yo-
.'[
local
TtHronlx
Sales
0tlice
.
of
call
TA's
#dation
:
:1
t1,,ukatinq
Center
.
Toll
free
:
16
:0-426-22110
.
Ext
.
99
.
A
1lcatlon
tab
.
114
Within
2%
1
peryear
a
eatibilli '
Linearity
Within
2%
over
entire
range enabling
single point
calibration
illuminance
DIGITAL
PHOTOMETER/RADIOMETER
Ifradlance
Luminance
Uncorrected
Red
LED
Grean/Yellow
LED
*'
An
additional
decade
ofsensitivity
is
included
and
is
usable
if
the
J16
is
carefully
zeroed
and
used
at
a
relatively
stable
temperature
.
0.000001
to
199
.9 candelas
when
used
with
014-0047-00
LED
adapter
or at
3
.8
inches
source-to
sensorspacing
.
Luminous
intensity
readings
of
higher
intensity
light
sources
may
be
easily
made
at
correspondingly
greater
distances
using
the
fomula
:
Foofcandles
x dz -
candelas
where
d
is
the
distance
from
the
source
to
the
sensor
in
feet
.
(For
metric
readings,
use
luxx
s
=
candelas
where
d
is
distance
from
the
source
to
the
sensor
in
meters
.)
RequestJl6
Application
Note
58A-2704-1
forfurther information
.
'~
US/Metric
Conversions
us
to Metric
Metric
to
U5
Illuminance
fc
x
10
.164
=tux
tux
x D .0929 =
fc
Luminance
fl
x
3.426
=
nits
nits
x
0 .2919 =
il
NOTES
:
t
Tltld
`'
Photometry/Radiometry
primer,
and
standardizing
CRT
measurements
'Luminous
Intensity
and
visible
LED
measurements
w/Tektronix
116
Photometer
Measuring
pulsed
light
sources
with
the
116 and
an
oscilloscope
Radiant
intensity
and
intrared'emitfng
diode
.
measurements
Television
station
applications
for
the
J16
Photometer
,
.
Practical
lighting
measurements
with
the Tektronix
116
:
;`
,
TV
picture
monitor
color
temperature
adjustment
using
the
Tektronix
116
.
Photographic
exposure
measurements
with
the Tektronix
116
Measuring
the
luminance
of
small
areas
of
light
with
the
J16
a
nd
16523
Optical
communications
measur
ements
350 400
To
order,
call
your
local
Tektronix
Sales
Office,
of
call
Tek's
National
Marketing
Center
.
Toll
free
:
1-B00-426-2200,
Ext
.
99,
450
500
1
,50 600 650
700
750
800
650 900 950
Wavelength-Nanometers
(All
curve
heights
adjusted
to
100a/o for
clarity)
C
iE
stands
far
the
International
Commission
On
Illumination
.
Dashed
lines
around a
curve
indkare
the
approximate range
or
the
Cunle
.
APPLICATION
NOTES
Uteratuire
.
#
60-W-5750
1000 ,050
1100
PHYSICAL
CHARACTERISTICS
(With
Probe
and
Battery
Pacii Installed)
TYPICAL
PROBE
SPECTRAL
CHARACTERISTICS
___°_________
____ ----
Probe
16511
16502-AIJ6512-A" 16503 16523 15804
~-
J6505
16501
iJS'a
0
.001
to
1999
0
.00i
to
1999
0
.1
to
199,900
0
.1
to
19,990
Relative
e
0,001
to
1999
0
.001 to
1999
.
a
lootcandles't
microwatts/cW"'
footlamberts" footlamberts"
response
only
footcandles"
footcandles!'
Metric
0
.01
to
19,990
:
,` >
0
.01
to
19,990
1 to
1,999,000
.
1
to
.199,900
Relative
0
.01
to
19,990
.-
:-
0
.01
to
19,990
0
t .
02
lumnens)mY
!ux
"`
milliwattslmg"'
candelas/m!
(nits)*
'
eandelas/mz
nits'"
response
only
lumnens/m'
tux
''
luumens/m
2 (tux)°'I
Accuracy
Within 5°!
of
NBS
Same
as
16511,
Within
5%
of
NBS
standard
and
t
1
digit
in
Probe-to-probe
Same
as
16501,
Within
5%
of
NBS
(induding J16) standards
and
t1 except
calibrated
last
place
.
Calibrated
with
a
3100°k
accuracy
t
5°/°
except
calibrated
with standards
and
±
1
digit
in
last
place
.
with
a
762
nm
filter
tungsten
light
source
with
tungsten
a
656
nm
filter
digit
in
last
place
.
Calibrated
with
a
light
source
Calibrated
with a
3100°
tungsten
3100°
tungsten
light
source
.
light
source
.
p®Clral
CIE
photoplc
cur' flat
within
t
7%
`z
CIE Photopic
curve
UV
enhanced
silicon
.
CIE photopic curve
.
CIE
photopic
curve
tiespohse
'
from
600
to
950
rim
spectral
curve
from
600
to
710
nm
f
450-600
i
8°/°
250
to
1200
nm
Acceptance
Cosine
50%
sensitivity
8°
1~
50%
sensitiviy
at
48'-
off
axis
50%
sensitivity
Angle
corrected
(18D°)
at
48°
off
axis at
48°
off
axis
CIE
Photoplc
t79b
y
Curve
~
ri
\
: .
a65oaA
J
5d2Af
J6512A~
~'
16504
J6512a
l
i
ce
.
165
5
1
Opt
.
t
o`
-
'
{
j
"
f
16523
16501
-
/J6503
\
/
J651t
'mm
em
I~
a
Cb
o
c
's
m
NOTE
:
CIE stands
for
International
Commission on
illumination
.
3
Measurements
in the
450
to
950
nm
range
can
now
be
made
to
within
a
±1%
uncertainty
80
traceable
to
NIST,
formerly
NBS
.
Using
the
C
new
standard
the
16502
and
16712
were
no
C
C+
longer
flat
across
the
range,
see
the
Spectral
v
0
60
Characteristics
Chart
.
77re
'A'
version
of
those
n
a
.
>
.
probes
were
developed
to
provide
a
flat ?
>
response
when
measured
with
the
new
m
'N
40
standard
.
a,
r
-
For
those
who
need
new
probes
that
match
the
characteristics
of
the
on
inal
J6502/J6512
20
probes,
orderJ6502Aor%512A
with
Option
70
.
IT
IS
NOT
POSSIBLE
TO
UPGRADE
AN
ORIGINAL
6502
OR16512
TO
ANA
'°
0
MODEL
BECAUSE
THEY
USEA
DIFFERENT
DETECTOR
AND
GLASS
.
58-A-2635
Dimensions
mm
in
.
Width
121--L6
58-A-2702-1
Height 60 2
.4
58-A-2704
-
1
.,
Depth
203
8
.0
58-AX-2764-1
Welghi
.
=
ku
Ib
58-A-2912
Net 1
.5
3
.3
Domestic
Shipping 2
.3
5
.0
58-A-2926-1
Expori-packed _ 4
.5
10
.0
58-AX-3060-1
58-AX-3252
58-AX-3602
.
J16
J6511
DIGNAL
Illuminance
Probe
E
Highway
Illumination
r
Lurnlrafies
anti
Lamps
h}'arksiaticn
Illumination
Studio
Lighting
Office
Lighting
F
Lighting
Equipment
J6502-A/J6512-A
Irradiance
Probes
Laser
Research
QDisplay
Color
Balancing
Radiant
Efficiency
Infrared
LED
Testing
J6503
8°
Luminance
Probe
4
TV
and
Computer
Display
Screens
"
Work
Surface
Illumination
f
Signal
Illumination
E
Projection
Screens
J6523
1°
Luminance
Probe
A
Roadway
Lighting
"
TV
and
Computer
Display
Screens
"
Photographic
Equipment
Testing
eGlare
and
Contrast
Measurement
J6505
Red
LEO
Probe
"
Output
of
Red
LEDs
(600-710
nmJ
J6501
Illuminance
Probe
tFor Yellow
and
Green
LEDs
J6511
ILLUCirIINIANCE
PROBE
The
J6511
is
an
illuminance
probe
with
readout
in
footcandles
[lumens/ml
(tux)
for the
J6511
Option
02]
.
A
multi-element
glass
filter
and
silicon
photo-diode ensure
a
close
match
1o
the CIE
photopic
curve
(color
corrected)
.
The
silicon-sensor
recovery time
is
virtually
instanta-
neous
;
low-light
levels
can be
measured
immediately
after
exposure
to bright
sunlight
.
The
angular
response
is
accurately
cosine
corrected,
simulating
an
ideal
180°
field-of-view
defector
.
The
low-
profile
probe
has a
leveling
indicator
to
ensure
accurate
measurements
where
a
significant
proportion
of
the
illumination
comes
from sources
at
low
angles
to
the
horizon
.
A
25-foot
cable
between
the
probe (J6511)
andJ16
allows
the
user
1o
be
out
of
the
field
of
view
while
making
measurements
.
J6562-A/J6512-A
IRRADIAI4CE
PROBE
The
J6502-A/J6512-A
measure
irradiance
in
micro-
watts/cm2
(milliwatis/m
2 )
with
Option
02)
.
The
spectral
response
is flat
from
450
to
950
nanometers
.
The
response
is
typically
down
50%
at
400and
1030
nm
.
An
optional
filter
holder
is
available
for
the
J6502-A
to
mount
standard
1
inch diameter
customer
supplied
filters
of
up
to
3/8
inch
thickness
.
Where
high
intensity
sources
are
used
(over
1990
u
watts/cm
2
),
neutral
density
filters
can
be
used
to
extend
the
range
of
the
J16
.
(An
NO
1
filter
has
10%
transmission,
and
ND
2 has
1
%,
etc)
.
These
filters
may
be
held
with an
optional
filter
holder
.
Where
the
1
sq
cm
sensor
is
not
completely
tilled
by
the
source,
for
example
with
a
laser
beam,
the
reading
obtained
represents
microwatts
instead
of
p
watts/cmz
or
mi
¬
liwatts
x 10-
"
instead
of
milliwalts/mz
(Option
02)
.
Small
variations
in
sensor
uniformity
may
add
±5%
uncertainty
to
this
measurement
.
The
J6512-A
has a
low-profile
defector
head
and
six-
foot
cable
.
Note
:
The
J6502-A/J6512-A
are
calibrated
for
a
flat
response
using
the
latest
NBS
standards
.
If
you
require
probes
that
are
compatible
with
the
original
J6502/
J6512,
then
order
Option 10 on
J6502-A
or
J6512-A
.
J65B8
8°
LUMINANCE
PROBE
The
J6503
measures
luminance
in
fool-lamberts
(candelas/ml
(nit)
with
Option
02)
where
light
scattered
or
emitted
by a
surface
must
be
measured
.
The
probe
is
pointed
at
the
emitting
surface
.
The
probe's
response
is
closely
matched
to
the
CIE
photopic
curve,
ensuring
accurate
results
even
when
measuring
spectrally
different
light
sources
.
The
acceptance
angle
is
approximately
8
degrees,
which
is
determined
by
internal
field
stop
aperatures
.
Providing
that
the
8degrees
field
is
uniformly
filled,
the
probe can be
held
at
any
distance
from
the
source
.
At
21
inches
from
the
front
of
the probe, the
field
of
view
is
approximately
three
inches
in
diameter
.
The
fooflambert
or
candelas/ml
(nit)
(Option
02)
indicator
automatically
lights
when
the
J6503
is
connected
.
10
LU1
,
61HARGE
PROBE
The
J6523
will
measure
the
luminance
in
footlamberts
(candelas/m
2
with
Option
02)
of
a
spot
as
small
as
0
.32
inch
in
diameter
.
By
using commercially
available
55-mm
stackable
close-up
lenses,
areas
as small
as
0
.035 inch
(+10
diopters)
can be
measured
.
These
55-mm
lenses
are
physically
similar
to
threaded
55
mm
photography
stores
.
(See
Application
Note
58-AX-3252
.)
The
1
degree
angle
represents
0
.21
inch
per
foot of
distance
from
the
probe
to
the source
.
Thus
at
10
feet,
the
J6523
measures
a
2
.1
inch
diameter
spot
.
The
probe
includes
an
optical
sighting
system
with
a
9
degree viewing
field
.
The
focusing
range
is
18
inches
to
infinity,
closer
with
55-mm
close-up
lenses
.
The
spectral
response
is
closely
matched
to
the
CIE
photopic
curve
(color-corrected)
for
accurately
measuring
all
commonly
used
light
sources
.
The
J6523
may
be
attached
to
the
J16
or
used
with
an
optional
probe
extension
cable
.
A
standard
1/4
inch
x
20
threaded
socket allows
i1
to
be
used
on
a
tripod or
an
optical
bench
.
J6505
PROBEFORRED
LEDs
Note
:
For
yellow
or
green
LEDs
use
the
J6501
probe,
for
infrared
LEDs
use
the
J6502-A
probe
.
The
J6505
measures
illuminance
in
foot
candles
(lumens/M
2
(tux)
with
Option
02),
which
can
easily be
converted
into
luminous
intensity
in
candelas
.
(See
Application
Notes
58-A-2635
and
58-A-2704-1
.)
An
adapter
supplied
with
the
probe
provides a
controlled
spacing between
the
sensor
and
the
LED
under
test
.
The
adapter
excludes
ambient
light,
andhas
internal
baffles
to
prevent
stray
reflections
during
the
measure-
ment
.
Three
inserts
are
supplied with
the
adapter
to
fit
common
sizes
of
LEDs
(0
.080
inch,
0
.125
inch,
and
0.200
inch
diameter)
.
These
inserts
are
made
of
soft
plastic
that
can be
easily
modified
by the
user
.
With
the
adapter
in
place,
a
reading
of
1
footcandle
of
the
J16
represents
100
millicandelas
of
luminous
intensity
.
With a
metric
version
of
the
J16/J6505
(Option
02),
1
lumen/M
2
represents
10
millicandelas
.
In
the
J6505,
the
silicon
photodiode-filter
combination
provides
an
excellent
match
to
the
photopic
curve
in
the
region
600
nm
to
710
nm
.
This
close
match
requires
compromising
in
the
360
to
600
nm
region,
making
this
probe
unsuitable
for
general
illuminance
measurements
.
For
LED
measurements
in
the
yellow
or
green
regions,
the
LED
adapter
must
be
used
with
the
J6501,
and
the
same
conversion
factor
for
luminous
intensity
applies
.
J65B1
ILLUIAINrANCE
PROBE
Where
cosine
correction
is
unneccessary,
the
standard
J6701
probe
is
available
with
the
same
photopic
correction
and
units
as
the
J6511
.
The
J6501
can be
used
to
measure
green
and
yellow
LEDs
.
To
order,
call
your
local
Tektronix
Sales
office,
at
call
Tek's
National
MarV
:etlng
Center
.
Toll
free
:
1-800-426-2200,
Ext
.
99
.

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