Tianlan TM-103N User manual
TM-103N Optical Power Meter
User Manual
V1.0
2
CONTENTS
1. Model Introductions...........................1
2. Features..............................................1
3. Technical Specifications....................3
4. Layout.................................................4
5. Function Keys ......................................5
6. Operation.............................................7
6.1 Turn on/off...................................................7
6.2 Absolute power measurement.....................7
6.3 Relative power measurement......................7
6.4 User self-calibration function.......................8
6.5 Auto off function...........................................9
6.6 Replace battery...........................................9
7. Maintenance .……………………………9
8. Trouble-Shootings……………………10
1
1. Model Introductions
TM-103NA:
Measurement range: -70~+10dBm，calibrated
wavelength：850nm、1300nm、1310nm、1490nm、
1550nm、1625nm
TM-103NB:
Measurement range: -50~+26dBm，calibrated
wavelength：850nm、1300nm、1310nm、1490nm、
1550nm、1625nm
2. Features
High measurement accuracy and display resolution
Quick response and measurement: It can display
fast-tracking and real-time measurement of optical
power when output power changes
Wide measurement range: it can provide 80dB of
optical power measurement range
Six calibrated wavelength: 850nm 、1300nm 、
1310nm 、1490nm 、1550nm and 1625nm(other
wavelength can be provided according to
customer’s request)
Provide absolute optical power measurement and
relative power measurement.
Real-time monitoring and displaying the battery
level
Warning notice is available when the battery is low
2
Auto-off function
Backlight LCD display
AAA batteries which is more convenient to carry
User self-calibration function
3
3. Technical Specifications
Measurement range dBm
-70～+10 dBm
-50～+26 dBm
Wavelength range（nm）
800～1650
Calibrated wavelength
850nm、1300nm、1310nm、1490nm、
1550nm、1625nm（other wavelength
will be on request）
Detector
InGaAs
Accuracy
<±3% （-10dBm、22℃）
Resolution
Linearity ：0.1% ，Non-linearity ：
0.01dBm
Working temperature
-10℃～+50℃
Storage temperature
-20℃～+70℃
Relative humidity
90%（＋30℃），
connector
Movable FC/PC SC/PC ，( ST as
Optional)
Power supply
3pcs AAA batteries
DC power supply
Optional accessory which require
special order
Support wide range power input work
(AC 90-240)
Working hours
>120 hours（without backlight）
Weight(g)
160g
Dimension(mm)
130×69×29
4
4. Layout
1. Wavelength ：Display the wavelength, such as
850nm、1300nm、1310nm、1490nm、1550nm and
1625nm.
2. Power value：
Displays the current output power under absolute
5
test mode
Displays the difference between the current output
power and reference power under relative test
mode
3. Unit：mW、uW、nW、dBm、dB.
4. Battery level : Indicate the current battery level.
When the icon is blank, it means the power is too low,
please change the batteries.
5. Auto-off ：Activate the 10-minute auto off function
6. ON/OFF
7. Wavelength select
8. REF Relative power：Press REF for 2 seconds to
start relative test
9. DBm/w: Absolute power
5. Function Keys
1) ON/OFF：press ON/OFF to turn it on. And press it
for 3 seconds to turn it off. Under power-on mode,
press this key shortly to activate or deactivate the
10-minute auto off function. The default setting is
auto-off function ON when start the meter.
Operators can press ON/OFF shortly to close the
auto-off function.
2) dBm/W ：press dBm/W to enter absolute
measurement mode. Press it repeatly to switch the
display power unit between W and dBm
3) λ：Switch the wavelength from 6 calibrated
6
wavelengths, the current choice of wavelength will
appears on the LCD
4) REF ：press REF key to enter relative
measurement mode and it has 3 working modes:
A) Directly enter the relative measurement: in
absolute measurement mode, press REF to enter
the relative measurement. Now the Ref value shows
the previous saved power values.
B) Save the reference value ：when enter the
relative measurement mode, press REF for 2
seconds to save the current absolute power value as
REF value and show the relative power value in dB
unit
C) Enter the relative measurement mode and save
current reference value: in the absolute
measurement mode, press REF for 2 seconds to
enter the REF measurement mode and save the
current value as REF value which will appears in Ref
position. Now the value in dB unit on the LCD and
the vale means the difference value between the
measurement value and REF value, meanwhile, the
REF value will displays in the REF position.
5) Backlit is on when turning on the unit. It will turn off
one minute later. Operators can press any key to
make backlit for another one minute.
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6. Operation
6.1 Turn on/off
Press ON/OFF shortly to turn on the unit. Press
ON/OFF for a few seconds to turn it off and press
this key slightly to activate or deactivate the auto-off
function.
6.2 Absolute power measurement
Insert optical signal (Insert the pigtail properly), turn
on the meter
Choose the wavelength via λkey. If the tested
wavelength is not exactly same to the one in the
power meter, then choose a close one from the
power meter. For example, 1300nm wavelength is
near to 1310nm, we can choose 1310nm to
substitue 1300nm.
Press dBm/W to choose the display unit. The
default wavelength is 1310nm and working mode is
dBm.
After the above steps, the LCD will show the test
power value.
6.3 Relative power measurement
Set the wavelength
Press REF for 2 seconds to enter the relative
measurement mode. now LCD screen display
00.00dB
Measurement: Insert the pigtail need to be tested
8
and introduce another measurement light, now the
current value shown in the LCD is the difference
value between the tested signal and reference
value.
The reference value shown in the Ref position
Press dBm/W to review the current absolute power
value. Press REF to review the current reference
value.
6.4 User self-calibration function
During the operation, when operators need to calibrate
the meter to be accordance with other meters. So our
product offers operators self-calibration function, the
following steps will tell you how to do:
Take out the batteries and pull up the switch 1 to
“ON” position.
Put the battery back to the battery compartment and
turn on the unit to choose the wavelength for
calibration.
ON
Work position
12
This manual suits for next models
2
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