Tenmars TM201 User manual

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LUX / FC LIGHT METER
TM-201
TM-202
TM-204
TM-205
(€
User's manual
H82TM2010010

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)
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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\
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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
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I1 Lux/Fc=1omv
1 Lux/Fc=1mV
1 Lux/Fc=O.1mV
1 Lux/Fc=0.01mV
l Lux=0.001mV
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8. ZeroAdiustment.
9. Photo detector.
Fig.1(TM-201/202)
Fig,2(TM-204)
Fig.3(TM-205)
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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
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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
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Light Source 0 degree
380 440 500 560 620 680 740
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10. RECOMMENDED LEVELS OF
ILLUMINATION
Suitable levels of illuminance
(According to the JIS standard 29110-1979)
Offices
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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
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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
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