ASHA PMB-101 User manual

Cover
ASHA Beam Prole
PhotodiodePowerMeterBundle
PMB-101

WWW.ASHA-CO.IR2
About Us
In order to design and manufacture programmable optometrical, op-
tomechanical and optoelectronical devices, the science-based compa-
ny, ASHA Beam Prole, was established in 2016.
ASHA has been able to design a wide range of devices, relying on
indigenous capability and knowledge. Also, since being calibratable is
essenal for measuring equipment, clients can carry out their period-
ical calibraon.
Field of activity
The main eld of acvity of this company is the design and produc-
on of laser, opcs and photonics equipment and can be categorized
in the following topics:
»Diode laser driver
»Laser diode stabilizer
»Laser Parameters measuring equipment such as Power Meter, Beam Pro-
ler, and Ultra-fast Detector
»Lithographic masks
»Linear posioner with stepper motor driver
»Calibraon of Power Meters and beam prolers
»Design and producon of soware to facilitate the use of electro-opc
and optomechanical programmable equipment

3WWW.ASHA-CO.IR
Main features
Introduction
Measuring the output of light sources is very important. For exam-
ple, the opcal power of medical lasers is very sensive and can cause
irreparable damage if the funcon of the device goes out of its proper
range. In experimental and research applicaons, it is always neces-
sary to measure the output of laser sources. In addion to the above,
it is crucial to pay special aenon to the necessity of calibraon of
industrial and military laser equipment.
Hence, the semiconductor power meter is designed for high preci-
sion laser applicaons. Producons of this company can well meet the
needs of the scienc and industrial community in the eld of power
metering.
The semiconductor power meter is designed for high precision laser
applicaons. The products of this company can well meet the needs of
the scienc and industrial community in the eld of power metering.

WWW.ASHA-CO.IR4
Features
»Direct connecon to the mulmeter with a special cable (depends on
order)
»Ability to operate in 12 dierent wavelengths from 350 nm to 1100 nm
(depends on order)
»Adjustable for desired light sources in the specied wavelength range
(depends on order)
»Able to have specic Gain for required scale (depends on order)
»Measuring the power of coherent opcal sources
»Measuring the power of connuous light sources
»Possibility to remove background radiaon and photodiode dark current
(depends on order)
»Internal rechargeable baery for portable use
Applications
»Study incident and reected beam power and qualify light sources
»Study the eect of environmental changes on laser sources performance
»Study the variaon of power when passing through (transparent) envi-
ronments
»Examining the quality of lenses and opcal windows
»Measure the intensity of reecon/passing beam from dierent surfaces
Warning! With regard to the items listed in the requirements secon,
to maximize the accuracy of the device, it is strongly recommended to
connect the power meter earth to the standard one.

5WWW.ASHA-CO.IR
Technical Features
Item Min Typ Max Unit
Input Voltage 4.75 5 5.25 V
Input Current 60 250 500 mA
Baery -<2000 - mAh
Baery Life -20 - h
Charge Time - 5- h
Wavelength Range 355 -1064 nm
Opcal Power Working Range*0.01 -240 mW
Display Power Range 0.1 -199.9 mW
Measurable Wavelengths** 355, 405, 450, 532, 633, 650, 780, 808, 850, 970, 1064 nm
Measurement Uncertainty ±5 %
* Measuring power in the range of 10 mW to 240 mW is possible If
connect 5.5 digit voltmeter with 1 uV accuracy to output.
** Maximum FWHM for console display should be ±5 nm and for
voltmeter output should be ±1nm.
Note Console output voltage is equal to one-tenth of opcal source power. So
1 V in output is equal to 100 mW power of the opcal source.

WWW.ASHA-CO.IR6
More Spec. Discripon
Dimenon Detector 35x35x18.5 mm3
Console 180x165x70 mm3
Weight Detector < 200 gr
Console < 1000 gr
Detector Connecon DB9
Output Connecon BNC
Acve Detector Area 10x10 mm2
Input Aperture Ø9 mm
Display 2000 counts - 7segment
Figure1.Ph o to d i o d e P owe r M ete r S en so r wi th A n nu l ar U V V i ewi n g Ta rg e t

7WWW.ASHA-CO.IR
Figure2.PhotodiodePowerMeterConsole-FrontView
Figure3.PhotodiodePowerMeter-BackView

WWW.ASHA-CO.IR8
Contents
About Us ............................................................................ 2
Field of acvity 2
Main features..................................................................... 3
Introducon 3
Features 4
Applicaons 4
Technical Feature 5
Power Meter Parts ............................................................. 9
Packaging Content 9
Detector Parts 10
Console Parts 11
Setup................................................................................ 13
Safety 13
Preparaon and measurement 14
Requirements 16

9WWW.ASHA-CO.IR
Power Meter Parts
Available Accessories
Please make sure that all accessories are available for the box in your
rst use.
»Photodiode Sensor x 1
»Dust Cap x 1
»Photodiode Power Meter Console x 1
»User Manual* x 1
»5V Power Supply x 1
»Mulmeter Connector Cable x 1
»M4 Screw x 2
* Digital version of this user manual is available by scanning the QR-
code under the console.

WWW.ASHA-CO.IR10
Detector Parts
Figure4. SemiconductorPowerMeterSensor-FrontView
1. M4 screw for vercal aligning
2. Sensor Cap(if open, guarantee void)
3. Visible spectrum detector (depends on order)
4. Connector cable
5. M4 screw
6. Input aperture(Opcal Filter)
7. Cap furrow
8. Anodised Aluminum body

11 WWW.ASHA-CO.IR
Figure5.Frontpartsofphotodiodepowermeterconsole
1. Wavelength selector 2. 4 digits display for reporng power
3. ON/OFF Key & Baery status LED
4. Input Power
5. Detector connector
6. Oset null volume(depends on
order)
7. Output (BNC)
8. To download datasheet
scan this QRcode
Figure6. Backpartsofphotodiodepowermeterconsole
Console Parts

WWW.ASHA-CO.IR12
Pinout
Figure7.PhotodiodeSensorPinout

13 WWW.ASHA-CO.IR
Setup
Safety
It should be noted that all safety ps in this manual are only use-
ful when used in accordance with the condions and for use un-
der the menoned situaons. All parts should be connected to
each other with a suitable and shielded cable. If you need to re-
place some parts of Asha’s company with others, you need to in-
form ASHA’s Technical support. If any changes in the compo-
nents of the product are applied, it may lose its funconality.
Due to the body reecon and opcal lter, it is recommend-
ed that you turn o the light source or set it in low pow-
er mode when using in the desired locaon. It is also nec-
essary to have an orthogonal beam on the sensor surface.
This instrumentaonal device only will be calibrated when placed in
the foam and special box according to the original packaging. It is rec-
ommended that you take alternave packaging from ASHA company
if necessary.

WWW.ASHA-CO.IR14
Preparation and Measurement
To set up the device, rst it is necessary to put the sensor perpen-
dicular to the beam axis with the proper connecon at the desired
locaon, and then connect the sensor cable to the device.
The device has a display on its front panel, and it’s possible to directly
display the result on the screen in addion to measuring through the
mulmeter. The output of this device, according to the order, is able
to be calibrated for required wavelengths, so that the output voltage
of the device reports the exact amount of beam power.
If you want to measure power using a voltmeter, using the supplied
cable, connect the analog output of the device (BNC port) to the cor-
responding BNC cable, then connect the black probe to the COM port
and the red probe to the voltmeter. Then turn on the device by using
the On/O key. If the device has enough baery, the display on the
front panel of the console will turn on. Otherwise, connect the adapter
to the input power connector. In this case, the red light turns on on the
on/o key, which means that the baery is charging and you can use
the console at the same me. When the baery is fully charged, the
red light will turn o and you can unplug the adaptor from the console.
This device can measure 12 wavelengths specied in the techni-
cal table. To prepare the device to measure the desired wavelength,
turn the selector and select the desired wavelength. For the user’s
convenience, the wavelengths of the device with the corresponding
approximate color are indicated symbolically on the front panel. Ob-

15 WWW.ASHA-CO.IR
viously, the incorrect wavelength selecon results in wrong reports.
In the end, turn on the beam source or remove the obstacle and mea-
sure the beam.
One of the features of this product (according to the order)is the oset
seng, which can be used to remove the background radiaon and
then measure the absolute power of the beam source. To do this, use
the oset knob on the back panel of the device and rotate the knob
to apply the desired oset according to the applicaon. One of the
important applicaons of this feature is the removal of the background
radiaon from the end result, which is very useful in environments
with unwanted background radiaon.

WWW.ASHA-CO.IR16
Requirements
»High precision analog or digital voltmeter (5.5Digits)
»Appropriate Power Supply (Available in Package)
»Standard ground connecon (Due to the high sensivity of
the sensor, if there is no proper ground connecon, the envi-
ronmental noise will greatly aect the sensor performance.)
It is necessary to menon that this power meter is very precise and sen-
sive and due to the precision the device output (listed in the table),
in order to use full capabilies of the device, it is recommended to use
voltmeters with the accuracy beer than 100μV.

17 WWW.ASHA-CO.IR
Drawings
Figure8. PhotodiodePowerMeterConsoleDimensions

WWW.ASHA-CO.IR18
Figure9.PhotodiodePowerMeterDetectorDimensions

19 WWW.ASHA-CO.IR
Thispageisleblankintenonally.

Back