Coherent FieldMaxII-TOP Manuel d'utilisateur

User ManualFieldMaxII-TOPLaser Power/Energy Meter

FieldMaxII-TOP User ManualviiiInterface IFM2DeviceEvents...72Interface cFM2ScanUSBForChange ...

FieldMaxII-TOP User Manual86propput DeviceHandle([in] long );propget DeviceHandle([out, retval] long* );The property to be used as the argument to the

Calibration and Warranty87CALIBRATION AND WARRANTYThis section discusses the following topics:• Calibration (this page)• Coherent calibration faciliti

FieldMaxII-TOP User Manual88Coherent Calibration Facilities and CapabilitiesAs the largest laser manufacturer in the world, Coherenthas been able to b

Calibration and Warranty89Limited WarrantyCoherent, Inc. (the “Company”) warrants its laser powerand energy meters and sensors products (“Products”) t

FieldMaxII-TOP User Manual90If the Product is not returned for recalibration or serviceprior to the one-year anniversary, the lifetime warrantyprogram

Calibration and Warranty91THE COMPANY BE LIABLE FOR ANY INDIRECT,INCIDENTAL, OR CONSEQUENTIAL DAMAGESIN CONNECTION WITH ITS PRODUCTS.Obtaining Service

FieldMaxII-TOP User Manual92Detailed instructions on how to prepare a product forshipping are shown under “Product Shipping Instruc-tions” on page 93.

Calibration and Warranty93Product Shipping InstructionsTo prepare the product for shipping to Coherent:1. Contact Coherent Customer Service (refer toT

FieldMaxII-TOP User Manual94

Appendix A: Specifications95APPENDIX A: SPECIFICATIONSTable 6 lists specifications for the FieldMaxII-TOP.Table 6. SpecificationsPARAMETER DESCRIPTIO

Table of ContentsixLIST OF FIGURES1. Measuring Average Power With a Pyroelectric Sensor ...62. Measuring Power With a Ther

FieldMaxII-TOP User Manual96Linearity ± 1%Measurement Resolution ± 0.1% of full scaleENVIRONMENTALAltitude <4,500 m (operating)<12,000 m (storag

Appendix A: Specifications97Measurement Range (full scale, sensor-depen-dent)Energy ModePower Mode3 nJ to 300 kJ (thermopile sensors, long pulse)3 nJ

FieldMaxII-TOP User Manual98

Index99INDEXAAC adapter 20Annunciator display functions 26Area button function 34Area correction and zeroing 35ATTEN annunciator 28Atten button functi

FieldMaxII-TOP User Manual100JJ/W button function 38LLCD display 15Left and right arrows 40Left side panel overview 18Limited warranty 89MMeasurement

Index101USB connector 17WWarrantyExtended lifetime 89Limitations 90Limited 89Wave (lambda) button function 33ZZeroBad 38Button function 38Zone indicat

FieldMaxII-TOP User Manual102

FieldMaxII-TOP User Manual™© Coherent, Inc. 6/2005, Printed in the U.S.A.Part No. 1086235, Rev. AA

FieldMaxII-TOP User Manualx

PrefacexiPrefaceThis manual contains user information for the Field-MaxII-TOP laser power/energy meter.Software InstallationInsert the FieldMaxII-TOP

FieldMaxII-TOP User ManualxiiPublication UpdatesTo view information that may have been added orchanged since this publication went to print, connect t

Safety1SAFETYCarefully review the following safety information toavoid personal injury and to prevent damage to thismeter or any sensor connected to i

FieldMaxII-TOP User Manual2Operate the meter only within the specified voltagerange.Do not apply a voltage outside the specified range ofthe input con

Safety3Declaration of Conformity

FieldMaxII-TOP User Manual4

Quick Start5QUICK STARTThis section presents a series of “mini-tutorials” thatexplains how to connect a sensor to your Field-MaxII-TOP meter and begin

FieldMaxII-TOP User Manual6Measuring Average Power With a Pyroelectric SensorThe following figure shows how to set up a pyroelectricsensor to take an

Quick Start7Measuring Power With a Thermopile or Optical SensorThe following figure describes how to take a powermeasurement using a thermopile or opt

FieldMaxII-TOP User Manual8Measuring Energy With a Pyroelectric SensorThe following figure outlines how to set up a pyroelec-tric sensor to take an en

Quick Start9Measuring Energy With a Thermopile SensorThe following figure explains how to take an energymeasurement using a thermopile sensor.Figure 4

FieldMaxII-TOP User Manual10

Description11DESCRIPTION Thank you for purchasing the FieldMaxII-TOP—aversatile, easy-to-use digital power/energy meterdesigned for field service and

FieldMaxII-TOP User Manual12The versatile FieldMaxII-TOP measures:• Power: W, W/cm2• Energy: J, J/cm2• Frequency: Hz• Full statistics: max, min, mean,

Description13Front PanelThe front panel (shown in Figure 5) includes a liquidcrystal display (LCD) and buttons that are used to enterparameters, selec

FieldMaxII-TOP User Manual14ButtonsThe following buttons are on the front panel of the Field-MaxII-TOP:• Setup/Local—starts or ends a parameter edit c

Description15DisplayThe LCD display provides visual measurement informa-tion. Figure 6 shows all the possible segments that mayappear on the display.F

User ManualFieldMaxII-TOPLaser Power/Energy Meter7470 SW Bridgeport Rd.Portland, OR 97224

FieldMaxII-TOP User Manual16The type of sensor being used and the individu-ally-selected settings determine what type of informa-tion will actually ap

Description17Right Side PanelThe right side panel contains the USB and Sensorconnectors (refer to Figure 7).USB ConnectorAttaching the cable—shipped w

FieldMaxII-TOP User Manual18Left Side PanelThe left side panel contains the Analog Out and PowerJack connectors (refer to Figure 8).Analog Out Connect

Description19Battery ReplacementFieldMaxII-TOP uses six 1.5V alkaline batteries, or a90-to-260 VAC, 50/60 Hz AC adapter (refer to “ACAdapter” on page

FieldMaxII-TOP User Manual20AC AdapterUsing an AC adapter prolongs battery life. Field-MaxII-TOP automatically senses when an adapter isused.When batt

Operation21OPERATIONThis section discusses the following topics:• Tuning mode (page 22)• Annunciators (page 26)• Fault displays (page 29)• Invalid and

FieldMaxII-TOP User Manual22Tuning ModeThis mode only works in Manual Ranging mode. Formore information about ranging, refer to “ManualRanging Mode” o

Operation23Tuning NeedlesTuning needles—which divide a given tuning zone intothirty “increments”—are used to peak a laser output. Asthe top or bottom

FieldMaxII-TOP User Manual24Zone Indicator BarsZone indicator bars are a series of six segments, as shownin Figure 12:These bars act as visual indicat

Operation25Zone indicator bars always appear in pairs, with eachoverlapping zone representing 1/3 of full scale.Figure 13 shows how the five zone indi

FieldMaxII-TOP User ManualiiThis document is copyrighted with all rights reserved. Underthe copyright laws, this document may not be copied in wholeor

FieldMaxII-TOP User Manual26Figure 14 shows an example of how the zone indicatorbars overlap on a 30-watt scale:AnnunciatorsAnnunciators refers to the

Operation27TRIGWhenever a trigger is detected, “TRIG” displays in theTRIG annunciator position. “TRIG?” displays in theabsence of a trigger.The TRIG a

FieldMaxII-TOP User Manual28ATTENThe ATTEN annunciator indicates if attenuation correc-tion is applied to the measurement value. “ATTEN”displays whene

Operation29Fault DisplaysFieldMaxII-TOP is capable of detecting internal anduser-induced faults. When a fault is detected, the letters“Er”—followed by

FieldMaxII-TOP User Manual30As an example, “Er 4” appears on the display if there isa sensor error. You can dismiss the fault by removing thesensor fr

Operation31• Function mode (Joules or Watts) is changed and nopulse triggers are detected with a pyroelectricsensor.• Statistics mode is entered and b

FieldMaxII-TOP User Manual324. Setup/Local is used to cancel the front panellockout when Remote Control is active.Remote Control is active when the in

Operation33StatPressing the Stat button will:• Enter Statistics mode—if Statistics mode is notactive and the button is pressed for less than twosecond

FieldMaxII-TOP User Manual34display the wavelength value. The available wavelengthrange is 1.00 to 99,999 nm. The actual range is sensor-dependent.If

Operation35Area Correction and Zeroing(thermopile and optical sensors only)It is important that you zero the sensor before usingArea Correction, as ex

iiie-mail or telephone Coherent Technical Support with adescription of the problem and the corrective steps attempted.When communicating with our Tech

FieldMaxII-TOP User Manual36AvgAverage mode enables display smoothing, whichsuppresses variations in the display reading that canmake it difficult to

Operation37Here’s an example of how to determine the attenuationcorrection factor that needs to be set in the FieldMaxII-TOP meter: If a 1 W laser bea

FieldMaxII-TOP User Manual38Button FunctionsJ/WThe main function of this button is to toggle betweenJoules and Watts mode. Only Watts mode can be acti

Operation39until the procedure ends. The zero procedure is immedi-ately terminated if the sensor is disconnected or if anerror is encountered.Normally

FieldMaxII-TOP User Manual40Up and Down ArrowsThese buttons serve a dual purpose. When Editmode is active, the buttons are used to adjust thecurrently

Operation41Selecting Auto mode restarts the batch count used to takea reading. If the instrument is not in Auto mode, the batchcount must be manually

FieldMaxII-TOP User Manual42slightly different manner, depending on which type ofsensor you are using. Energy measurements cannot betaken with an opti

Operation43Table 2 describes the measured information on thenumeric display for various sensor types and modesettings.Table 2. Numeric Display Inform

FieldMaxII-TOP User Manual44Measurement Display and Range SelectionThe display update rate for numeric measurement isthree times per second.Measuremen

Operation45Over-ranging refers to a meter setup condition in whichthe sensor output signal is greater than the maximumallowable level for the selected

FieldMaxII-TOP User Manualiv

FieldMaxII-TOP User Manual46When area correction is enabled, turning on the joules/cm2 segment will express joules units with a “/cm2”appended.The Ran

Operation47When area correction is enabled, turning on the watts/cm2 segment will express watts units with a “cm2”appended.The Range Hint annunciator

FieldMaxII-TOP User Manual48Pyroelectric-Specific InformationInformation in this section pertains exclusively to pyro-electric sensors. If you are usi

Operation49In the example shown in Figure 15, the internal triggerthreshold has been set to 8% (shown as a dashed line).Pulse A will definitely not ge

FieldMaxII-TOP User Manual50The trigger is synchronous with the leading edge of thepulse, but the actual peak is determined algorithmicallyby sampling

Operation51Manual ranging requires the range to be selected by theuser. For more information, refer to “Up and DownArrows” on page 40.ZeroingThermopil

FieldMaxII-TOP User Manual52

Special Topics53SPECIAL TOPICSThis section discusses the following topics:• Trigger states and the trigger annunciator (thispage)• Pulsed thermopile J

FieldMaxII-TOP User Manual54becomes active and the triggered state becomes inactive.The TRIG annunciator reads “TRIG” in the triggeredstate and “TRIG?

Special Topics55Pulsed Thermopile Joules Mode(for long-pulsed lasers only) When a thermopile sensoris attached, the meter has the capability of measur

Table of ContentsvTABLE OF CONTENTSPreface ...

FieldMaxII-TOP User Manual56Pyroelectric Watts ModeUsing an attached pyroelectric sensor, FieldMaxII-TOPcan measure power from a series of pulses. Whi

Special Topics57The first pulse is used to trigger the calculation and isdiscarded because its time interval, t0, is indetermi-nate.When n = 0, power

FieldMaxII-TOP User Manual58The digital tuning feature always displays the absolutevalue of measured power. If the power is negative, theminus sign se

Host Interface59HOST INTERFACEThis section presents the following topics:• Introduction (this page)• ActiveX usage guidelines (this page)IntroductionT

FieldMaxII-TOP User Manual60cFM2Listener class and IFM2Listener interface—Anobject class that dispatches meter USB connect/discon-nect and data event

Host Interface61is accessed by reading any of the numerouscFM2Device.<parameter> properties. It implements theIFM2Device interface. The cFM2List

FieldMaxII-TOP User Manual624. Pass the callback object to the cFM2Listenerobject.5. Start the cFM2ScanUSBForChange object statuschange engine.The fol

Host Interface63The Callback ObjectThe callback object code—supplied by the applicationcode—must completely conform to the cFM2Notifyclass definition

FieldMaxII-TOP User Manual64Private Sub IFM2DeviceEvents_DisplayZeroDeviceProgressToClient()‘Steer the m_CallbackMessage string and ‘m_ZeroDeviceTimeo

Host Interface65Private Property Let IFM2DeviceEvents_ZeroDeviceTimeoutCounter( _ByVal RHS As Integer)m_ZeroDeviceTimeoutCounter = RHSEnd PropertyStat

FieldMaxII-TOP User ManualviTuning Needles ...23Zone Indicator Bars .

FieldMaxII-TOP User Manual66‘Start the data check timerScanForData.CheckTimer m_DevicesListThe device and device collection object may be persistedto

Host Interface67DeviceStatus callback method) through theDevicesList.Item search method using the string versionof CallbackData.DeviceIndex as the sea

FieldMaxII-TOP User Manual68Case Else‘Unknown eventEnd SelectA Fault event indicates a meter malfunction. The faultcode may be queried by reading the

Host Interface69An Overrange packet event indicates that the currentreading is overranged.An Overtemperature event indicates that the probe is inan o

FieldMaxII-TOP User Manual70is a countdown value that starts at 60 and decrements byone for each event. The terminal value for ZeroDevice-TimeoutCount

Host Interface71In the application code:1. Stop all engine timers.2. Destroy the cFM2Notify callback object.3. Destroy the cFM2ScanUSBForChange andcFM

FieldMaxII-TOP User Manual72Interface IFM2Listenermethod GetUSBDeviceStatusChange();(serves internal processing purposes only)propget DeviceIndex([out

Host Interface73method NotifyData([in] IFM2DeviceEvents* CallbackData);The data event callback method. Notification details arefound in the CallbackDa

FieldMaxII-TOP User Manual74propput DeviceIndex([in] short );propget DeviceIndex([out, retval] short* );The device index property that is used to inde

Host Interface75Interface IFM2Devicemethod CloseAllUSBDeviceDrivers([in] long Device-Handle);The method call to close a connection. Use the Device-Han

Table of ContentsviiEnergy and Power Measurements...41Measurement Display and Range Sele

FieldMaxII-TOP User Manual76method AreaCorrectionDiameterCommand([in] doubleCommandOption);The method to set the area correction aperture diameterin m

Host Interface77method AverageWindowSizePulsesCommand([in] short CommandOption);The method to set the display smoothing window size inpulses. This par

FieldMaxII-TOP User Manual78method BatchSizeSecondsCommand([in] long CommandOption);The method to set the statistics batch size in seconds.This parame

Host Interface79method PowerStateCommand([in] VARIANT_BOOLCommandOption);The method to turn on or off the meter. ValidCommandOption values are 0 for o

FieldMaxII-TOP User Manual80method SpeedupHostDataCommand([in] VARIANT_BOOL CommandOption);The method to enable or disable application of ther-mopile

Host Interface81method WavelengthCommand([in] long CommandOption);The method to set the wavelength of operation for wave-length correction. Valid Comm

FieldMaxII-TOP User Manual82propget AverageModeEnabled([out, retval] VARIANT_BOOL* );The read only property indicating display smoothingmode.propget A

Host Interface83propget HoldMode([out, retval] VARIANT_BOOL* );The read only property indicating hold mode state. Thisparameter has effect only with a

FieldMaxII-TOP User Manual84propget MeterType([out, retval] short* );The read only property indicating the meter type (TOP,TO, or P). This property fo

Host Interface85propget SpeedupAnalogOutput([out, retval] VARIANT_BOOL* );The read only property indicating mode of application ofthermopile speedup t