Tenmars TM-208 User manual
Precision Illumination -Solar -UVA
3 in 1-Meters
TM-208
User’s Manual
HB2TM2080003
Content:
1 Preface...................................................... 1
2 Characteristics........................................... 1
3 Specifications............................................ 2
4 Illumination Instruction .............................. 6
5 Instrument description............................... 9
6 LCD description........................................11
7 Measurement Procedures....................... 12
8 Zero Adjustment...................................... 13
9 MAX/MIN/AVG Record:........................... 14
10 Single Data Record................................. 15
11 Auto Power Off........................................ 16
12 Relative Deduction Value(%)................... 17
13 Setup Mode............................................. 18
14 Auto Recording Time Setup.................... 19
15 Time clock Setup..................................... 21
16 Viewing Records ..................................... 22
17 Battery Replacement............................... 24
18 External DC Power.................................. 25
19 Computer Grade...................................... 25
20 Software installation................................ 26
21 Safety and maintenance standards......... 29
22 Service .................................................... 30
23 End of life ................................................ 32
TM-208
1
1 Preface
Thank you for purchasing our product. Please,
read the operating instructions in details before
you use this optics meter, so you will operate the
meter correctly. This meter can be used in
industry and home.
2 Characteristics
It gives the selection of Illumination –Solar.
-UVA of one’s own accord unit.
Illumination -Solar –UVA.
Convenient, no need to adjust, data
displayed clearly.
Real time data.
Data hold function.
Auto ranging.
Back light.
Auto power off and disable auto power off.
USB PC interface.
Data logging capacity up to 45,000 reading.
Data logging of Illumination –Solar. -UVA of
one’s reading.
Low battery indication“ ”.
Over load display “OL”.
Maximum/Minimum/Average record and
elapse time.
Auto zero adjustment.
TM-208
2
3 Specifications
3.1 General Specifications
Battery life: approx. 100 hr.
Display: 3 3/4 LCD display maximum
display 4000.Illumination -Solar -UVA of
one’s own accord unit BTU (ft2*h) / W/m2/
uW/cm2/ mW/cm2Lux /foot candles (fc) unit.
Sampling: 4 times/second.
Power off: Manual off by push button, or
auto shut off after 30 minutes
approximately.
Data Output: USB PC serial interface.
Datalogging capacity up to 45,000 reading.
Power: 9V battery、NEDA1604、IEC 6F22
or JIS 006P(Only data logger use), or AC to
DC Adapter. (9V/300mA).
Size: 130(L) x 56(W) x 38 (H)mm.
Weight: approx.250g.
Consumption Current: ≦10mA.
Standard Accessories: User’s manual, 9V
battery，Carrying case, MINI USB 4P(MALE)
to USB A Type cable, Install CD disk of
TM-208 AC to DC 9V(300mA) If you want to
change sensor，you must turn the meter off
first.
Sensor length:1.0M.
TM-208
3
EMC
This tester was designed in accordance
with EMC Standards in force and its
compatibility has been tested in accordance
with EN61326-1 (2006).
3.2 UVA Electric Electrical Specification
Range : 400.0μw/cm2, 400μw/cm2,
4000μw/cm2, 20mW/cm2.
Resolution :
0.1μw/cm2,1μ/cm2,0.01mW/cm2.
Accuracy : ± 4(%FS + 2dgt) FS: full
scale/< ±3/year
Wavelength : 320 - 390 nm.
Peak sensitivity wavelength: 365 nm.
Sensor : The exclusive photo diode &
UVA color correction filter
TM-208
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3.3 Solar Power Electric Specification
Range : 40.00w/m2m2,400.0w/ m2,4000w/
m2,2000W/m2/13 Btu(ft2．h),127Btu(ft2．
h),634 Btu(ft2．h).
Resolution : 0.01 w/ m2, 0.1 w/ m2, 1W/ m2/
0.01 Btu(ft2．h),0.1 Btu(ft2．h),1 Btu(ft2．h).
Accuracy：Typically within ± 10W/m2 [ ±3
BTU / (ft2*h) ] or ±5% , whichever is greater
in sunlight; Additional temperature induced
error ±0.38W/m2 / °C [ ±0.12 BTU / (ft2*h)/ °C]
from 25°C
Peak sensitivity wavelength : 400 - 1100 nm.
Auto Measurement & ranges : 0.01W/ m2
~2000W/m2、0.01 BTU /(ft 2 * h)~634 BTU /(ft
2 * h). °C.
TM-208
5
3.4 Illumination Electric Specification
Sensor Silicon photodiode and filter
Measuring
Range 40.00,400.0,400,4000,
40000,400000 Lux
40,400,4000,40000 Footcandles
Accuracy ±3% (Calibrated to standard
incandescent lamp 2856 K)
6% other visible light source
Angle deviation
from cosine
characteristics
30°±2%
60°±6%
80°±25%
Peak sensitivity wavelength：380 - 780 nm.
Cosine Angular corrected.
According to JIS C 1609:1993 and CNS 5119
general A class Specifications.
Measuring lights source include all visible.
Many
a
pplications include: Warehouses,
factories, office buildings, restaurants,
schools, library, hospitals, photographic,
many video, parking garages, museums, art
galleries, stadiums, building security.
Peak sensitivity wavelength:550nm
TM-208
6
4 Illumination Instruction
The flux of light received in a unit area of a certain
side being shone is popularly known as
illumination. In both United Kingdom and United
States, the unit is known as foot-candle light, but
in Europe it is known as meter candlelight.
The unit is defined as the amount of illumination
the inside surface an imaginary 1-foot radius
sphere would be receiving if there were a uniform
point source of one candela in the exact center of
the sphere. Alternatively, it can be defined as the
illumination on a 1-square foot surface of which
there is a uniformly distributed flux of one lumen.
This can be thought of as the amount of light that
actually falls on a given surface. The foot-candle
is equal to one lumen per square foot. Its
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. It 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, therefore,Nbr. of
foot (meter) candlelight =Nbr. of Lumen
――――――――――――――
Area(sq. foot or sq. meter)
Nbr. of Lumen=Nbr. of foot (or meter)x area
Foot-candle/Lux conversion
1 foot-candle=10.764 lux
TM-208
7
1 lux=0.09290 foot-candles
(sq, foot or sq. meter)
Relative Spectral (SENSITIVITY)
The deviation from the comparative standards for
luminosity is determined by JIS standard C
1609-1993.
Typ. Ta=23°C
NOTE 1.：When the light sensor cap is not
attached on the sensor, the word “CAP” will
appear on the LCD. Make sure that the cap is
TM-208
8
attached on the sensor. If the zero adjustment has
not been made correctly, some digits will still
appear on the LCD instead of 0.00. In this case,
please make the zero adjustment again.
NOTE 2.：Light Source Luminous Intensity (cd)
calculated if a single light source is used and is
regarded as a single-point light source, the
luminous intensity of the light source can be
calculated and displayed, by setting the distance
from the light source to the measuring point.
Luminous intensity (cd) = llluminance (LUx) x
distance (m)2
Set the distance to the measuring light source in
advance.
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