1 General Information 1 General Information The Thorlabs PM20 Fiber-optic Power Meters is an easy to use, robust and flex- ible fiber-optic power measurement system with built-in optical sensor. The PM20 Power Meters feature NIST traceable wavelength calibration over the specified wavelength range.
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Thorlabs is not responsible for any radio television interference caused by modifications of this equipment or the substitution or attachment of con- necting cables and equipment other than those specified by Thorlabs.
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 PM20 Series mechanically and electric- ally. Verify that you have received the following items within the package: 1.
2.1 Operating Elements The 8 digit LC Display allows precise 3 digit logarithmic and 4 digit linear power readings along with units and additional system information. Figure 1: PM20 Series Front Panel Operating Keys Power The power button switches the instrument on and off. After powering up the wavelength set value is displayed for 2 seconds.
Fibers with connectors of most available industry standards can be connected to the optical input on top of the PM20 Series. The unit comes with a FC adapter. The threaded fiber adapters are easily changeable; please refer to our website (https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=906) for the com-...
To charge the battery, plug-in the 12 V DC power supply PMPS that is delivered with the instrument. The batteries will recharge within 3 hours. The PM20 Series has a built-in NiMH rechargeable battery for an operation up to 50hrs. When the batteries need recharging, a “LOW BATT” warning appears in the display.
Line Voltage The PMPS power supply of the PM20 Series operates at line voltages of 100 V to 240 V ± 10% and line frequencies of 50 and 60Hz. Prior to starting operation check that your local supply corresponds to this line voltage range.
PM20 Series 4.4 Warranty Thorlabs warrants material and production of the PM20 Series for a period of 24 months start- ing with the date of shipment. During this warranty period Thorlabs will see to defaults by repair or by exchange if these are entitled to warranty.
Contact Thorlabs for more information. Waste treat- ment is your own responsibility. “End of life” units must be returned to Thorlabs or handed to a company specializing in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site.
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