THORLABS PM200 Manuale utente

Optical Power and Energy Meter

PM200

Quick Reference

2011

Version:

Date:

1.0.0

29.07.2011

Foreword

Contents

1 General Information 3

31.1 Safety

2 Installation 4

42.1 Parts List

52.2 Operating Elements

62.3 Getting Started

3 Operating Instruction 7

73.1 Attenuation Correction

73.2 Wavelength Correction

93.3 Bandwidth

93.4 Range Control

103.5 Measurement Views

103.5.1 Numeric View

113.5.1.1 Subpanels

143.5.2 Needle View

143.5.3 Graph and Statistics Display

163.5.4 Calculator

173.5.5 File Manager

183.6 Additional Measurement Settings

183.7 Settings

203.8 Charging the Battery

4 Computer Interface 21

5 Appendix 22

225.1 Technical Data

255.2 Certifications and Compliances

265.3 Warranty

275.4 Copyright

285.5 Thorlabs 'End of Life' Policy (WEEE)

295.6 Listings

295.6.1 Thorlabs Worldwide Contacts

We aim to develop and produce the best solution for your application

in the field of optical measurement technique. To help us to live up to

your expectations and improve our products permanently we need

your ideas and suggestions. Therefore, please let us know about

possible criticism or ideas. We and our international partners are

looking forward to hearing from you.

Thorlabs GmbH

WARNING

Sections marked by this symbol explain dangers that might result in

personal injury or death. Always read the associated information

carefully, before performing the indicated procedure.

Please read these advices carefully!

This manual also contains "NOTES" and "HINTS" written in this form.

ATTENTION

Paragraphs preceeded by this symbol explain hazards that could

damage the instrument and the connected equipment or may cause

loss of data.

NOTE

1 General Information

The PM200 Handheld Optical Power and Energy Meter is designed to measure

the optical power of laser light or other monochromatic or near monochromatic

light sources and the energy of pulsed light sources.

The space-saving, battery powered design and compatibility to all Thorlabs “C-

Series” Photodiode, Thermal, Pyroelectric sensors, and custom Photodiode,

Thermal and Pyroelectric detectors, combined with a fast USB device interface

open a wide range of applications in Manufacturing, Quality Control, Quality

Assurance, and R&D for stationary and field use.

The provided software, including drivers and applications for LabVIEW and C

makes it easy to integrate the instrument in test and measurement systems.

The PM200 can be operated through its auto-detecting position sensor and the

rotatable kick-stand in both a bench-top style landscape view and a hand-held

style portrait view.

Please refer to the user manual on the data carrier supplied with the unit for

detailed function description.

1.1 Safety

Attention

All statements regarding safety of operation and technical data in this instruction

manual will only apply when the unit is operated correctly as it was designed for.

The power meter PM200 must not be operated in explosion endangered

environments!

All modules, sensors and externally connected devices must only be operated

with properly shielded connection cables.

Only with written consent from Thorlabs may changes to single components be

carried out or components not supplied by Thorlabs be used.

Do not remove covers!

This precision device is only serviceable if properly packed into the complete

original packaging including the plastic foam sleeves. If necessary, ask for a

replacement package.

PM200

2 Installation

2.1 Parts List

Inspect the shipping container for damage.

If the shipping container seems to be damaged, keep it until you have inspected

the contents and you have inspected the PM200 mechanically and electrically.

Verify that you have received the following items within the package:

1. PM200 power/energy meter console

2. Desktop power supply (5 VDC / 2.4 A)

3. Power cord according to local power supply

4. USB cable (USB Type A Connector to Mini USB Connector)

5. Cable 3.5 mm Audio Connector to Flying Leads for analog output

6. Adapter for the auxiliary connector in the top panel

7. USB memory stick (Flash Drive 1 GB) with instrument drivers, user

application and operation manual

8. Quick Reference

9. Certificate of Calibration

Optional Accessories

Environmental Measurement Module (Displays Temperature and Relative

Humidity)

Fiber Inspection Camera Module (Monochrome Fiber Inspection Camera

with Power Measurement Capability

2 Installation

2.2 Operating Elements

Front Panel

1. LED indicators for „Standby“ mode and „Charging“

2. Touch-pen

3. Touch-screen display

4. Removable protective silicone rubber boot

Rear Panel

5. Four position rotatable and two flap position adjustable stand

6. Adaptor for optional fiber inspection camera

PM200

Side View

7. ON/OFF button

8. DC Input (DC 5V/2A)

9. USB host (for flash drive and fiber inspection camera)

10. Analog Output (0...2V DC)

11. Optical head input

Top View

12. Auxiliary In/Output (ext. Trigger, 4 x GPIO, 2 x ADC)

13. USB Device (PC remote operation)

14. Ambient Light Sensor

2.3 Getting Started

For first use, plug in the power supply and allow 4 hours charging the battery.

During the charging process the right LED indicator lights up, even when the unit

is turned off.

Connect a suitable Thorlabs “C-series” power or energy sensor. The sensors

have a self-fixing mechanism. To plug or unplug a sensor slightly press from

both sides on the pins in the connector housing. Sensors can be ‘hot-swapped’

to the console, after recognizing a new valid sensor the type and calibration data

will be downloaded to the console in a few seconds and the unit is ready to

operate with the new sensor.

Turn on the unit by pressing the power button in the side panel.

After switching on the unit, the touch screen display will come up with a boot

screen for about 30 seconds and then jump to the last measurement screen

before power down.

2 Installation

3 Operating Instruction

3.1 Attenuation Correction

The attenuation menu can be used to apply an additional, external related

correction factor to the power or energy reading (e.g. filter). The handling is

similar to the wavelength correction, it is possible to create a list with dedicated

attenuation items in dB or loading complete spectral transmission curves in

comma separated format.

Note

Attenuation must be entered always as a positive value, e.g., (+)10dB. The

software allows to enter negative values as well,but this would be equivalent to an

amplification.

Note

If the attenuation curve e.g. of a filter is loaded and selected, it can be easily

displayed in the 'Sensor' panel. Comparing the graphics in tab 'curve' with the tab

'eff. curve', the superposition of the sensor's response curve and the filter curve

can be seen.

3.2 Wavelength Correction

The PM200 allows the creating and administering of a nearly unlimited number of

user wavelengths and spectral curves of light sources that will be used for

calculating the spectrally corrected power or energy value.

By clicking to the wavelength value, a drop down list appears with saved

wavelength value. The menu item ("Edit...") opens the editor panel. The editor

panel instantly appears when clicking to the Wavelength button:

PM200

Wavelength Editor Panel

Left side of the panel

User created wavelength list with scroll arrows. Depending on the connected

sensor the list items appear in standard color for a valid value or in red for a value

that is out of the sensor wavelength range. The selected wavelength will show in

the “edit window”.

Right side of the panel

Wavelength range of the connected sensor.

Edit Window with selectable units

Numeric input field.

Icons

Add item to the list

Delete item from the list

Overwrite item in the list with new value

Load spectral curve

Quit editor

A specialty of the PM200 is the possibility to load spectral curves of broadband

light sources. These files must be in comma separated format (.csv), can be

loaded from the USB drive and will be stored in the user space of the local drive.

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