Page 1
TCN]V|/ARS
LUX / FC
LIGHT METER
TM-201
TM-202
TM-204
TM-205
(€
User's
manual
H82TM2010010
Page 2
Page 3
1.
DESCRIPTION
Measures
light from
visible
luminaries equipped
with
fluorescent,
metal halide,
high-pressure
sodium
and
incandescent
sources.
2. SAFETY
PRECAUTION
Take extreme
care
for
the following
conditions while
Do not operate
the
meter under
the
environment
with
explosive
gas (material),
combustible
gas
(material)
steam
or
filled
with dust.
ln order to
avoid
reading
incorrect data,
please
replace
the battery
immediately
when the
symbol
"ffi" uppeats on
the
LCD.
ln order
to avoid
the
damage
caused
by
contamination
or static
electricity,
do
not touch
the
circuit
board before
you
take any
adequate
action.
Operating
Environment:
lndoors
use.
This
insirument
has been
designed
for being
used
in an
environment
of
pollution
degree
2.
Operation
Altitude:
Up to
2000M.
Operating
Temperature &
Humidity:
-10C
-
50C,
0%- 80%RH.
Storage
Temperature
&
Humidity:
-10
C
-
50f
,
o"k- 70"kRH.
o
EMC:EN61
326(1 997)+41
(1
998)+A2(2001
)
3. PREFACE
The
flux of lighi received
in
a unit area of a certain side
being shone is
popularly
known as illumination. ln both
United
Kingdom
and
America its unit is known as
footcandles
light, but
in Europe it is known
as
meter
candlelight.
One foot-candles light is the illumination of light thai
falls
on one side that
lies in
a distance one
foot
away
from a one foot-candlelight and exactly intersecting the
light. lts
abbreviated
form is written
as
1 Fc=1 Lm/ft,
similarly, one-meter candlelight
is the illumination
of
light that falls on a side that lies
in
a distance one
meter
away from
a
one meter candlelight and exactly
intersects
the light.
lt is
also called
Lux i,e. the flux of
light being received in each sq.
meter is
called
the
illumination
of one
lumen.
As one foot
candle=10.764
Lux, thereiore,Nbr. of
foot
(meter)
candlelight
=
Nbr. of Lumen
Area(sq.
foot
or sq.
mete0
Nbr.
of
Lumen=Nbr.
of
foot
(or
meter)x area
Foot-candle/Lux conversion
1 foot-candle=10.764 lux
'1
lux=0.09290
foot-candles
(sq,
foot or sq. meter)
a
a
EN-1
EN-2
Page 4
4.
a
a
a
o
a
a
o
a
a
FEATURES
Low cost highest
precision.
Overload
lndication: LCD
will show
"OL" in the
left
highest
position.
Low battery
lndication.
Sampling
Rate: 2.5 times
per
second
for digital
display.
Spectral
response close
to CIE
luminous spectral
efficiency.
Cosine
Angular corrected.
According
to JIS C
1609:1993 and CNS
5119
general
A
class Specifications.
Measuring lights source
include
all visible.
Measuring
intensities of
illumination
in Lux or
footcandles.
Many applications
include:
Warehouses,
factories,
office buildings,
restaurants,
schools,
library,
hospitals,
photographic,
many video,
parking
garages,
museums, art
galleries,
stadiums,
building
security.
DC analog output
(TM-202).
Data hold.
Zero adjustment.
Large
integrated circuit
design.
Auto Range
(TM-205)
TEN
5. SPECTFTCATTONS
Display 2000 count,
large
LCD display, easier
to read.
Sensor Silicon
photodiode
and
filter
Vleasuring
lange
20
(T
M
-2021
2O5), 200, 2000,
20000,200000
Lux
20.200.2000.20000 Footcandles
Accuracy
t
3%
(Calibrated
to standard
incandescent lamp 2856' K)
B% other
visible light
source,
(TM-2O1/2O4)
67" other visible light source,
(rM-2o2t2os\
Angle
deviation
from
cosine
characteristics
30
! 2o/o
60' t6%
80' t25o/"
Power
Supply lv NEDA 1604, tEC
6F22, JtS 006P
latterv x 1Dc
Batterv life
About
200 hours
Dimensions
fieter: 3a
(H]
x ss(w) x r30(L)
mm(TM-201/2O2)
1.s(H)x 2.2(w) x s.1(L) inch(TM-201/202)
38
(H)
r ss(w) x 172(L) mm(TM-204/20s)
1.s(H)x 2.2(w) x 6.8(L) inch(TM-204/205)
;ensor: 25(H) x 55(W) x 80(L) mm(TM-201/202)
9.8Hlr 2.2(lV) x 3.1(L) inch(TM-2o1/202)
/Ueighl
250
g
(include
battery)
Accessories
User's manual,carrying
case,9V
battery,s
/
plug
(TM-202)
Length of wring for light
sensor:Approx. 1.5M
(rM-2011202\
O
a
o
o
a
EN.3
EN-4
Page 5
6.
'I
.
2.
J.
b.
7.
OPERATION
PROCEDURE
Open
the carrying case.
Press the
"O"
button
to rurn
power
on or off
Remove the cap of the
light sensor, Put the
light
sensor
at the spot where lhe testing
of source of
light
is
to be conducted,
auto testing
will then be
conducted
by the meter,
read the testing
value
after
the reading indicated becomes
stable.
When
"OL"
is shown at the
highest
position
ai the
left lateral side, overload
is indicated, then
please
choose
another range that
is located at a
comparatively
hi
gher position
.[
M-2O1 /202/204)
lf
you
want to keep the
reading value on
the LCD
permanently
after
testing,
press
the
"D-H"
Key
whereby the reading
value will be
locked
permanently
up.
Press the
"D-H" Key once again
when
you
want to release
the
previous
locking.
After testing,
put
the cover of
the light sensor
back
to its former
position,
and
turn off the switch.
After testing
is
completed,
the
indication
value
should be 000
no matter what
its range
would be
after
putting
the cap of
the light sensor
back to
its
lormer
position.
Please adjust
0 ADJ
to enable LCD
to indicate 000
if zero cannot be
recovered.
lf zero
still cannot be
recovered,
it means
that the
meter
breaks
down.
(TM-2O1
1202/204)
Press the
ZERO button
for the zero adiustment
if
any
digits
is
appeara
(TM-205)
NOTE.
:
When the light sensor
cap
is not attached
"CAP"
is indicated. Make
sure that
it is attached.
lf
performing
the
zero adjustment after
powering
on, several
digits
may not disappear.
ln this
case,
perform
the
zero adjustment again.
INSTRUMENT
DESCRIPTION
(See
Fig.1/ Fig.2)
Display(LOD):
Display measurements
and
function
symbols.
Power
Button: ON/OFF switching.
MAX button:
Lock up MAX or
MIN
(TM-202l205),
value
of
LCD. Press
M-H or MAX again
to resume
normal
measuring.
(TM-201/204) Press M-H or
MAX 1 second
to resume
normal measuring.
(TM-
202
or
TM-205)
Lux/Fc button:
For select
Lux and Fc.
DATA HOLD
button:
The reading data shown
on
LCD can be locked
while
pressing
the button.
Range button.
DC analog output
terminal.
(TM-
202) 30
plug
DC Analog Output
Value
Tablel
EN-6
7.
i
l' 1.
t,
J.
4.
5.
b.
7
?
I
1 Lux/Fc=1omv
1 Lux/Fc=1mV
1 Lux/Fc=O.1mV
1 Lux/Fc=0.01mV
l Lux=0.001mV
EN-5
Page 6
8.
ZeroAdiustment.
9.
Photo detector.
Fig.1(TM-201/202)
Fig,2(TM-204)
Fig.3(TM-205)
EN-8
EN-7
Page 7
8.
RELATTVESPECTRAL(SENSlTlVlrY)
The deviation
from the comparative
standards
for
luminosity is determined by
JIS standard
C 1609-
1 993.
Peak sensitivity
wavelength:550nm
Typ. Ta=23t
-v(
1)
*
-
-
-
-TM-2O2
Tt\,1-205
WAVELENGTH
(nm)
*ClE
luminous spectral
luminous
TEN
ATTENTION
set
for referring
the
testing
of source
of light
is
located at
the
right top
end
(0
degree)
of the light
sensor
ball
plane.
(See
fig. 3)
When
the meter
is not
in
use,
please
keep
the
cap of
the light
sensor
in its
place
to
avoid the
photo
diode
from
wearing
out.
When
it is not
in use
for a
long time,
please
take
the batteries
away.
And avoid
keeping
it in a
place
of high
temperature
and
humidity.
Fig.3
9.
a
;
F
E
a
z
I.JJ
a
I.JJ
F
J
IJJ
t
Light
Source
0 degree
380
440 500 560 620 680
740
EN-9
EN.1O
Page 8
10.
RECOMMENDED LEVELS OF
ILLUMINATION
Suitable
levels of illuminance
(According
to the
JIS standard
29110-1979)
Offices
TCN
1 1. BATTERY REPLACEMENT
Remove the
battery
cover
Replace the battery.
lnstall the battery
cover.
/l\ llf
the svmbol
"ffi"
appeat,
on the
LCD.
4J
lolease
rLolace
the batterv
immediatelv
1.
2,
.t.
Illuminance
(lux)
Place
1
500
to
750
3ffices,
designing, drawing
rooms
750 to 300 Offices,
conference
rooms, computer
rooms
300 to
,l00
Workrooms, corridors,
stairways,
reslrooms
75 to 30 lndoor emergency
stairways
Precision drawing
or drafting,
Classrooms,
library reading
rooms,
staff rooms,
gymnasia
Leclure
halls, assembly
rooms,
locker
rooms, corridors,
stairways
rehouses and
emergency
passages
Factories
llluminance
(lux)
Place
3000
to 1 500
y't/here
such
work as assembling,
nspecting
testing, selecling,
sxtremely
precision
visual
work
1 500 to 750 Assembling,
inspecting,
testing,
selecting,
precision
visual work
750 to 300 Assembling,
inspecting, testing,
selectinq
and visual ordinary
work
300to
150 /Vrapping and
packing
75 to 30
lndoor emergency
stairways
EN.11
EN-t2
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