Gentec-EO MAESTRO User Manual

MAESTRO User’s Manual

Revision 8.1

1

WARRANTY

The Gentec-EO MAESTRO Single Channel Laser Power, Energy and Power/Energy Meter carries a oneyear warranty (from date of shipment) against material and/or workmanship defects, when used under normal operating conditions. The warranty does not cover damages related to battery leakage or misuse.

Gentec-EO Inc. will repair or replace, at Gentec-EO Inc.’s option, any MAESTRO that proves to be defective during the warranty period, except in the case of product misuse.

Any attempt by an unauthorized person to alter or repair the product voids the warranty.

The manufacturer is not liable for consequential damages of any kind.

In case of malfunction, contact your local Gentec-EO distributor or nearest Gentec-EO Inc. office to obtain a return authorization number. The material should be returned to:

Gentec Electro-Optics, Inc.

445, St-Jean-Baptiste, Suite 160

Québec, QC

Canada G2E 5N7

Tel: [phone]

Fax: [phone] e-mail: [e-mail]

Website: www.gentec-eo.com

CLAIMS

To obtain warranty service, contact your nearest Gentec-EO agent or send the product, with a description of the problem, and prepaid transportation and insurance, to the nearest Gentec-EO agent. Gentec-EO Inc. assumes no risk for damage during transit. Gentec-EO Inc. will, at its option, repair or replace the defective product free of charge or refund your purchase price. However, if Gentec-EO Inc. determines that the failure is caused by misuse, alterations, accident or abnormal conditions of operation or handling, you will be billed for the repair and the repaired product will be returned to you, transportation prepaid.

MAESTRO User’s Manual

Revision 8.1

2

SAFETY INFORMATION

Do not use the MAESTRO if the device or the detector looks damaged, or if you suspect that the MAESTRO is not operating properly.

Appropriate installation must be done for water-cooled and fan-cooled detectors. Refer to the specific instructions for more information. Wait a few minutes before handling the detectors after power is applied. Surfaces of the detectors get very hot and there is a risk of injury if they are not allowed to cool down.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, try to correct the interference by taking one or more of the following steps:

•Reorient or relocate the receiving antenna.

•Increase the distance between the equipment and receiver.

•Connect the equipment to an outlet that is on a different circuit than the receiver.

•Consult the dealer or an experienced radio/TV technician for help.

Caution: Changes or modifications not expressly approved in writing by Gentec-EO Inc. may void the user’s authority to operate this equipment.

SYMBOLS

The following international symbols are used in this manual:

Refer to the manual for specific Warning or Caution information to avoid any damage to the product.

DC, Direct Current

MAESTRO User’s Manual				Revision 8.1	3
TABLE OF CONTENTS
1 THE MAESTRO SINGLE CHANNEL LASER POWER/ENERGY METER ...........................................					6
	1.1	INTRODUCTION..................................................................................................................................			6
	1.2	SPECIFICATIONS ...............................................................................................................................			7
	1.3	FRONT PANEL DESCRIPTION..............................................................................................................			9
	1.4	TOP PANEL DESCRIPTION................................................................................................................			10
2	GETTING STARTED ...........................................................................................................................				13
	2.1	HOW TO ACCESS THE DIFFERENT MENUS OF THE MAESTRO’S USER INTERFACE ...............................			14
	2.2	QUICK POWER AND ENERGY MEASUREMENT PROCEDURE..................................................................			16
	2.3	DESCRIPTION OF THE MAESTRO NAVIGATION MENU .......................................................................			19
	2.4	HOME.............................................................................................................................................			20
	2.4.1		Set Device .............................................................................................................................		20
		2.4.1.1 Date & Time (Not available on this version, check our web site for new versions)...........................			21
		2.4.1.2	Number of Digits...............................................................................................................................		21
		2.4.1.3	Serial Commands.............................................................................................................................		22
		2.4.1.4	Ethernet............................................................................................................................................		23
		2.4.1.5	Languages........................................................................................................................................		24
	2.4.2		Set Measure ..........................................................................................................................		25
		2.4.2.1	Wavelength ......................................................................................................................................		26
		2.4.2.2	Range...............................................................................................................................................		28
		2.4.2.3	Measure Mode .................................................................................................................................		29
		2.4.2.4	Corrections .......................................................................................................................................		32
		2.4.2.5	Trigger Level ....................................................................................................................................		33
	2.4.3		Display...................................................................................................................................		34
		2.4.3.1 Display Parameters menu bar ..........................................................................................................			35
		2.4.3.2	Real time display ..............................................................................................................................		38
		2.4.3.3	Scope display ...................................................................................................................................		38
		2.4.3.4	Needle display..................................................................................................................................		40
		2.4.3.5	Averaging display .............................................................................................................................		40
		2.4.3.6	Statistics display...............................................................................................................................		42
	2.4.4		Acquisition .............................................................................................................................		45
	2.4.5		Startup Config........................................................................................................................		48
	2.4.6		About .....................................................................................................................................		49
	2.5	SEARCH .......................................................................................................................................			50
	2.6	INFO .............................................................................................................................................			51
	2.7	MANAGE USB ..............................................................................................................................			52
	2.8	BACK TO MEASURE BUTTON....................................................................................................			52
3	SERIAL COMMUNICATION INTERFACE ..........................................................................................				53
	3.1	USB SERIAL COMMUNICATION ........................................................................................................			53
	3.1.1		Installation .............................................................................................................................		53
		3.1.1.1	Installation for Windows™: ...............................................................................................................		53
	3.1.2 Setting up Communication to the MAESTRO .......................................................................				53
		3.1.2.1	Verify COM Port ...............................................................................................................................		53
		3.1.2.2 Connect to the MAESTRO ...............................................................................................................			53
		3.1.2.3	To echo commands..........................................................................................................................		54
		3.1.2.4	Test the connection ..........................................................................................................................		54
		3.1.2.5	HyperTerminal settings shortcut.......................................................................................................		54
	3.2	ETHERNET COMMUNICATION ...........................................................................................................			55
	3.3	PC-MAESTRO USER-FRIENDLY SERIAL DATA ACQUISITION SOFTWARE .............................................			56
	3.4	TRADITIONAL COMMUNICATION SETTINGS ........................................................................................			57
	3.4.1		Serial Command format ........................................................................................................		57
		3.4.1.1	Serial Protocol Rules:.......................................................................................................................		57
		3.4.1.2	Text mode rules:...............................................................................................................................		57
	3.4.2 MAESTRO Binary Mode Description ....................................................................................				58

3.4.2.1 Description .......................................................................................................................................

58

MAESTRO User’s Manual				Revision 8.1	4
		3.4.2.2	Codification.......................................................................................................................................		58
	3.4.3		Serial Command Directory ....................................................................................................		59
		3.4.3.1	Serial commands..............................................................................................................................		61
		3.4.3.2	Error Messages ................................................................................................................................		76
	3.4.4 Legacy monitor serial commands..........................................................................................				77
		3.4.4.1 Emulated SOLO2 Serial commands.................................................................................................			77
		3.4.4.2 Error Messages for SOLO2 Serial mode ..........................................................................................			88
4	MAINTENANCE...................................................................................................................................				89
	4.1	USB INSTALLATION FOR THE MAESTRO.........................................................................................			89
	4.2	FREE SOFTWARE UPGRADE ............................................................................................................			89
	4.3	BATTERY CHARGING .......................................................................................................................			89
	4.4	TROUBLESHOOTING ........................................................................................................................			89
5	DECLARATION OF CONFORMITY ....................................................................................................				90
6	APPENDIX A .......................................................................................................................................				91
	6.1	QED/12/25/50/65/95 .....................................................................................................................			91
7	APPENDIX B .......................................................................................................................................				93
	7.1	RECYCLING AND SEPARATION PROCEDURE.		......................................................................................	93
	7.2	SEPARATION:..................................................................................................................................			93
	7.3	DISMANTLING PROCEDURE: .............................................................................................................			93

MAESTRO User’s Manual	Revision 8.1	5
LIST OF ILLUSTRATIONS
FIG. 1-1 MAESTRO FRONT PANEL .................................................................................................................		9
FIG. 1-2 MAESTRO TOP PANEL ...................................................................................................................		10
FIG. 1-3 TYPICAL PULSE SHAPE OF A PYROELECTRIC DETECTOR ......................................................................		12
FIG. 2-1 MAESTRO START UP WINDOW ........................................................................................................		13
FIG. 2-2 HIERARCHY OF THE MAESTRO’S USER INTERFACE STRUCTURE ........................................................		14
FIG. 2-3 PARAMETERS MENU TO SET THE DETECTOR’S ZERO LEVEL .................................................................		17
FIG. 2-4 THE NAVIGATION MENU BAR ..............................................................................................................		19
FIG. 2-5 THE HOME MENU WINDOW...............................................................................................................		20
FIG. 2-6 THE SET DEVICE MENU WINDOW .......................................................................................................		21
FIG. 2-7 THE NUMBER OF DIGITS MENU WINDOW .............................................................................................		22
FIG. 2-8 SERIAL COMMANDS MENU WINDOW ...................................................................................................		23
FIG. 2-9 ETHERNET CONFIGURATION MENU WINDOW.......................................................................................		24
FIG. 2-10 LANGUAGE CONFIGURATION MENU WINDOW ....................................................................................		25
FIG. 2-11 THE SET MEASURE MENU WINDOW..................................................................................................		26
FIG. 2-12 THE WAVELENGTH MENU WINDOWS ................................................................................................		27
FIG. 2-13 POPUP WINDOW TO ENTER A USER DEFINED WAVELENGTH ...............................................................		28
FIG. 2-14 THE RANGE SELECTION MENU WINDOW ...........................................................................................		29
FIG. 2-15 THE MEASURE MODE SELECTION MENU WINDOW FOR A THERMOPILE DETECTOR HEAD.......................		30
FIG. 2-16 SETTING CORRECTION MENU ..........................................................................................................		32
FIG. 2-17 TRIGGER LEVEL WINDOW ................................................................................................................		33
FIG. 2-18 DISPLAY MENU WINDOW..................................................................................................................		35
FIG. 2-19 THE DISPLAY PARAMETERS MENU BAR ............................................................................................		35
FIG. 2-20 REAL TIME DISPLAY ........................................................................................................................		38
FIG. 2-21 SCOPE TIME DISPLAY ......................................................................................................................		39
FIG. 2-22 DIGITAL NEEDLE DISPLAY ................................................................................................................		40
FIG. 2-23 AVERAGING DISPLAY.......................................................................................................................		41
FIG. 2-24 STATISTICS DISPLAY .......................................................................................................................		42
FIG. 2-25 STATISTICS SETTINGS POPUP WINDOW ............................................................................................		43
FIG. 2-26 STATISTICS DURATION SETTINGS POPUP WINDOW ............................................................................		44
FIG. 2-27 DATA SAMPLING PARAMETERS WINDOW MENU..................................................................................		46
FIG. 2-28 STARTUP CONFIG MENU WINDOW ....................................................................................................		48
FIG. 2-29 ABOUT WINDOW. ............................................................................................................................		49
FIG. 2-30 SEARCH WINDOW. ..........................................................................................................................		50
FIG. 2-31 INFORMATION MENU WINDOW ..........................................................................................................		51
FIG. 2-32 MANAGE USB MENU WINDOW .........................................................................................................		52
FIG. 3-1 MAESTRO ETHERNET COMMUNICATION EXAMPLE APPLICATION .......................................................		56

MAESTRO User’s Manual

Revision 8.1

6

1 THE MAESTRO SINGLE CHANNEL LASER POWER/ENERGY METER

1.1Introduction

To obtain the full performance from the MAESTRO, we recommend that you read this manual carefully.

The MAESTRO is a microprocessor-based power and energy meter that uses the latest technology to provide a multitude of options in a user-friendly environment. It is intuitively accessible using a touch screen. It is a complete power and energy meter. The MAESTRO provides a statistical analysis of your measurements. It allows you to store data on an external USB key. Moreover, the MAESTRO can be updated by connecting a USB key with the new file available on our web site in the download section.

The MAESTRO has enhanced network capabilities that take further advantage of the USB port for data acquisition and remote control. In addition to the external USB key, it can also transfer data files to a PC for more sophisticated data analysis. Furthermore, the MAESTRO responds to commands through the PC interface using the USB port. To transform your PC screen into a virtual MAESTRO, look for the easy-to-use communications software on our website.

There is no need to enter the head specifications when connecting the new Gentec-EO power or energy detector heads, for heads version 5 and above. The MAESTRO is already internally set to accept the latest Gentec-EO wattmeter and joulemeter heads with a DB-15 connector. The MAESTRO supports both fast and slow heads with a rise time from 5 s to 10 s.

The MAESTRO can reread heads in hot plug situation. Before inserting a new head, wait for the MAESTRO to stop displaying numbers. Once the head has been detected, the monitor will wait 2 seconds to ensure that the head is properly inserted. If you do not respect these conditions and the head is not read correctly, reboot the MAESTRO.

Unpacking

Each Gentec-EO MAESTRO is thoroughly tested and calibrated prior to shipment.

Visually inspect every MAESTRO unit after removing it from the shipping containers. If you see any damage, retain all packaging materials and shipping receipts. Any damage claim should be made promptly to the transportation company. Notify the nearest Gentec-EO representative concerning the claim, so that any repair or replacement can be arranged as soon as possible.

Easy software upgrade

Keep in touch with the latest improvements to our user-friendly software by going to our website at www.gentec-eo.com. Download the latest software version anytime and install it on the MAESTRO with the USB key. You will find all the necessary information on downloading and upgrading in section 4.2.

MAESTRO User’s Manual

Revision 8.1

7

1.2Specifications

The following specifications are based on a one-year calibration cycle, an operating temperature of 18 to 28ºC (64 to 82ºF) and a relative humidity not exceeding 80%.

				Table 1-1 List of Specifications
				Power meter specifications
	Power Range			4 pW to 30 kW
	Power Scales		300pW, 1nW, 3nW, 10nW, 30nW, 100nW, 300nW, 1µW, 3µW, 10µW,
	(photo diode head)		30µW, 100µW, 300µW, 1mW, 3mW, 10mW, 30mW, 100mW, 300mW,
				1W, 3W
	Power Scales		16 scales: 300uW, 1mW, 3mW, 10mW, 30mW, 100mW, 300mW, 1W,
	(thermal head)			3W, 10W, 30W, 100W, 300W, 1kW, 3kW, 10kW, 30kW
	Pyroelectric in power		100µW, 300µW, 1mW, 3mW, 10mW, 30mW, 100mW, 300mW
	mode range (UM-B)
	Resolution (digital)			Current scale/8192
	Monitor Accuracy			±0.25 % 5 µV best scale1
	Response Time			Head dependant (~1 sec)
	(accelerated)2
	Statistics		Current value, Max, Min, Average, Std Dev., RMS stability, PTP stability,
				Time
	Data Storage			Continuous on USB stick
				Energy meter specifications
	Energy Range			2fJ to 30kJ
	Energy Scales [2]		300fJ, 1 pJ, 3 pJ, 10 pJ, 30 pJ, 300pJ, 1 nJ, 3 nJ, 10 nJ, 30 nJ, 100nJ,
	(photo diode head)		300nJ, 1 uJ, 3 uJ,10uJ, 30uJ, 100µJ, 300µJ, 1mJ, 3mJ, 10mJ, 30mJ
	Energy Scales [2]		3mJ, 10mJ, 30mJ, 100mJ, 300mJ, 1J, 3J, 10J, 30J, 100J, 300J, 1kJ, 3kJ,
	(thermal head)			10kJ, 30kJ
	Resolution (digital)			Current scale/8192

1The 5µV offset can introduce an error into low power measurements with low sensitivity detectors. It is essential to use the Zero Offset to rezero the Maestro before making a measurement in these conditions. It is always good practice to use the Zero Offset. See section 2.2.

2Varies with detector head.

	MAESTRO User’s Manual	Revision 8.1	8
	Accuracy3	1.0 % 50 µV < 6 kHz
		2% 50 µV 6kHz to 10 kHz
	Default Trigger Level	2 %
	SOFTWARE	0.1% to 99.9%, 0.1% resolution
	TRIGGER LEVEL
	Repetition	2 kHz for data acquisition in the real time full screen display, no missing
	Frequency4	point
		1.3 kHz for data acquisition in real time with time stamp, no missing point
		2 kHz in statistics mode, no missing point
		From 2 kHz to 10kHz the MAESTRO will send the latest energy pulse
		every 500us. (corresponding to a subsampling at 2 kHz).
	Frequency	Accurate frequency measurement up to 14kHz
	Measurement	0-1000 Hz: 0.1% accuracy
		1000-2000 Hz: 0.5%
		2000-14000 Hz: 1%
	Statistics	Current value, Max, Min, Average, Std Dev., RMS stability, PTP stability,
		Time, Pulse #, Repetition Rate, Avg Power.
	Data Storage	Continuous on USB stick
		General Specifications
	Digital Display	112.9 x 84.7mm RGB color LCD with touchscreen, 640 x 480 Pixels
	Display Rate	3 Hz numeric display
		15 Hz bar graph & needle display
	Scope	500 divisions
	Data Displays	Real time, Scope, Averaging, Statistics, Digital tuning needle
	User input correction	1 multipliers and 1 offsets (7 digits floating point)
	factors
	Analog Output	0 – 1 volt, full scale,	± .5%
	Internet Upgrades	USB STICK
	PC Serial Commands	USB & Ethernet5
		& RS-232
	No missing point	300 Hz
	throughput serial

3Including linearity, detector dependant.

4In a full size statistic’s windows, no scope display and no serial communication.

5USB cable included. RS-232 cable must be purchased separately.

6Backlight at 50% in real time display. The scope and averaging displays decrease the autonomy by 20%.

MAESTRO User’s Manual	Revision 8.1	9
frequency
Dimensions (without	216 mm(W) x 122 mm (H) x 45.7 mm (D)
stand)
Weight (with stand)	0.670 kg
Battery Pack	4 rechargeable 1.2 V Ni-MH AA
Battery life	6.5 hours6
Battery charge time	4 hours
Universal External	Input: 100/240 VAC 50-60 Hz, Output 9 VDC 1.66 A.
Power Supply

1.3Front Panel Description

2

1

Fig. 1-1 MAESTRO Front Panel

1- I/O control key.

MAESTRO User’s Manual

Revision 8.1

10

Pressing the I/O key quickly when the MAESTRO is OFF turns the MAESTRO ON (do not hold the I/O key). To turn the MAESTRO off, press the I/O key. To prevent battery leakage and to increase battery life, we recommend switching the MAESTRO off when not in use.

2- LCD SCREEN

Dimensions: 112.9 x 84.7mm RGB color Touchscreen LCD, 640 x 480 Pixels.

To access any of the options or menus, simply touch the appropriate icon or button on the screen.

1.4Top Panel Description

6

5

4

3

2

1

Fig. 1-2 MAESTRO Top Panel

1- USB PORT FOR USB KEY

This interface allows the user to insert a USB key for an easy and quick data transfer without having to connect the monitor to a PC. If your key is not recognized, try using a new one. Old and slow USB keys are not supported.

2- ETHERNET PORT

This interface allows remote control and data transfers between the MAESTRO and a computer that has an ETHERNET communication port.

3- EXTERNAL POWER SUPPLY INPUT JACK:

CAUTION

Permanent damage may occur to the optical meter if an external power supply other than the Gentec-EO P/N 200960A is used. Please call Gentec-EO or your local distributor if extra power supplies are needed.

Input voltage required: 9 VDC/1.66A. If input voltage is between 15 and 25 volts, the monitor will switch to USB power or battery power. If the input power is above 26 volts,

MAESTRO User’s Manual		Revision 8.1		11
	either the internal fuse will blow or the monitor may be damaged, depending on the
	voltage level and the waveform.
4-	USB INTERFACE CONNECTOR:
	This interface allows remote control and data transfers between the MAESTRO and a
	computer that has a USB communication port.
5-	SERIAL INTERFACE CONNECTOR (RS-232, Analog out, Ext trigger):
	RS-232:
		The RS-232 interface allows remote control and data transfers between the
		MAESTRO and a computer, a terminal, or any device that has a serial
		communication port. To use the RS-232 port, you must have a special cable
		(part number 201860).
	Analog out:
		It allows monitoring the laser average power or energy by using external
		equipment such as a chart recorder, a computer with an analog interface, a
		voltmeter, etc. To use the analog output port, you must have a special cable
		(part number 201958).
		For power measurements: the output signal represents the amplified and
		anticipated power detector response.
		For energy measurements: the output signal is a DC voltage representing the
		pulse energy value.
		The 1 V value corresponds to the full scale reading of the selected range. It
		provides the best signal-to-noise ratio. The measured power or energy is then
		related to the output voltage and to the selected range according to the following
		equations:
		Power VoutputMax of Range selected
		Energy VoutputMax of Range selected
		For example:
		1.00 V corresponds to 10 Watt on the 10 W range
		0.25 V corresponds to 2.5 Watt on the 10 W range
		0.10 V corresponds to 30 mW on the 300 mW range
		Specifications:
		Maximum output voltage:	1 V
		Output impedance:	2 k
	External trigger:

To use the external trigger, you must use a special cable (part number 201956). The External trigger is TTL compatible. The maximum voltage is 25 volts, the trigger needs a positive voltage, the minimum width is 1 s. The monitor detects the trigger on the rising side of the external trigger signal. To measure accurately, the trigger must be just before the laser pulse, or just after. For example:

A QE12SP-S-MT has a 20 s rise time

The External trigger must be 4 s before or 19 s after the laser pulse.

MAESTRO User’s Manual

Revision 8.1

12

	Fig. 1-3 Typical pulse shape of a pyroelectric detector
	Connector type:	cable sold separately
6-	PROBE INPUT JACK:
	The MAESTRO uses a DB-15 female connector to mate with the detector heads (probes).
	The MAESTRO works with all the latest Gentec-EO detectors except the specialty high
	rep rate detectors. It automatically recognizes every power detector head, which ensures
	accurate auto-calibration. More importantly, it can take advantage of our Personal
	wavelength correction™. It reads the memory in the Smart Interface connector (version 5
	and higher) to provide a wavelength correction that is based on spectral data measured
	from that specific detector.
	The MAESTRO may not recognize some of the old heads EEPROM versions. An error
	message “Detector not supported!” will appear in a popup window. Please contact a
	Gentec-EO representative to resolve this issue. If no message is displayed, either the
	head is not supported or it is broken.
	Energy detector heads prior to version 4 have a BNC connector. The user must use a
	universal BNC/DB-15 adaptor to connect an energy detector head to the MAESTRO. This
	adaptor is compatible with all the Gentec-EO pyroelectric joulemeters except the EPD.
	Power detectors of version V5 and higher and Energy detectors of version V6 and
	higher are equipped with an “intelligent” DB-15 male connector that mates directly to the
	DB-15 female connector. They do not require an adaptor.
WARNING:	This DB-15 connector, though similar to that of the former TPM-310 and TPM-330
	monitors, is incompatible with the power detector heads of PS-310 Series Version 1
	and PS-330 Series Version 1. These heads used a different technology and do not
	have the same pin-out configuration.

Any attempt to modify connectors of the early version heads to mate with the MAESTRO can result in damage to the monitor.

MAESTRO User’s Manual

Revision 8.1

13

2 GETTING STARTED

This section contains important information concerning the installation and operation of the MAESTRO.

The MAESTRO is delivered ready to use. Just insert a detector head in the Probe Input Jack (#6 in Figure 1-2) and press the I/O key. The following window will appear on the monitor (Figure 2-1). It is separated into four different areas.

1

2

3

4

	Fig. 2-1 MAESTRO Start up window
1-	REAL TIME DISPLAY (in dual mode)
	The Real Time display shows the current measured value by the detector head (refer to
	section 2.4.3.2).
2-	DISPLAY PARAMETERS MENU
	The Display Parameters menu gives you quick access to the MAESTRO’s main settings
	(refer to section 2.4.3.1).
3-	SCOPE DISPLAY (in dual mode)
	The Scope display gives a quick look at the laser beam’s long-term stability and trend as
	a function of time. This display can be easily changed using the display parameters menu
	(refer to section 2.4.3.3).
4-	NAVIGATION MENU (main menu)
	The Navigation menu allows you to navigate through the different menu windows to set
	the MAESTRO’s options to your specific needs (refer to section 2.3).

MAESTRO User’s Manual

Revision 8.1

14

2.1How to access the different menus of the MAESTRO’s user interface

The powerful CPU of the MAESTRO, combined with the Windows CE operating system, provides an easy and intuitive access to all of its functions. The user controls the intuitive interface using the touch screen. To access any option or functionality, simply touch the appropriate icon or button on the touch screen. To help you navigate through the different menus, the following figure represents the

MAESTRO’s user interface hierarchy. Each menu and submenu is represented by its icon and referenced to its corresponding detailed section. (Some functions may not be available in your software version, check our web site for new release),

Fig. 2-2 Hierarchy of the MAESTRO’s user interface structure

MAESTRO User’s Manual Revision 8.1 15

A set of different buttons and icons allows you to interact with the MAESTRO’s user interface. The following table describes the different buttons and icons present in the MAESTRO.

Table 2-1 List of Specifications

Icon	Name	Type	Description
	Cancel	Button	Closes current window without saving
			changes.
	OK	Button	Saves changes and closes current
			window.
	Warning	Icon	Identifies a warning window.
	Hint	Icon	Identifies a useful hint.
	Full Screen	Button	Switches to the single, full screen
			display mode.
	Minimize	Button	Switches to the dual screen display
			mode.
	Settings	Button	Allows the user to change the display
			settings.
	Play	Button	Starts computing the statistics.
			Refreshes the data in the display
	Refresh	Button	(used for Scope, Averaging and
			Histogram).
	Stop	Button	Stops computing the statistics.
	Check Box (empty)	Check Box	Deactivates the option.
	Check Box (full)	Check Box	Activates the option.
	Edit	Button	Allows user to edit the field.
	Delete	Button	Erases the field.

MAESTRO User’s Manual			Revision 8.1	16
				Automatically adds a file name.
	Add	Button		Pressing the Add button again
				increments the name.
	Next Page	Button		Displays the next page in the menu.
	Previous Page	Button		Displays the previous page in the
				menu.
	Scroll up	Button		Displays the upper part of the page.
	(Not available)
	Scroll down	Button		Displays the lower part of the page.
	(Not available)

2.2Quick power and energy measurement procedure

This section applies to all MAESTRO versions. It will show you the fastest way of making a laser power and energy measurement with the MAESTRO and a Gentec-EO power or energy detector.

The monitor automatically recognizes all the Gentec-EO power heads and energy heads of version 4 or higher. All customized technical data required for optimum operation of the detector will be automatically downloaded from the EEPROM in the DB-15 connector. These data include all the necessary head parameters such as sensitivity, model, serial number, version, wavelength correction factors, time response and others. The MAESTRO doesn’t support energy detectors before version 4.

Quick power and energy measurement procedure:

1- Install the power or energy detector head on its optical stand.

2- First, slide the connector latch to the right to unlock the connector.

3- Turn the MAESTRO off and connect a compatible power or energy detector head to the MAESTRO using the PROBE INPUT JACK (see Fig. 1-2). The Maestro allows hot-swapping between heads.

4- Slide the latch to the left to lock the connector into place. 5- Switch the MAESTRO ON using the I/O key.

6- Power heads will default the MAESTRO to power measurement; energy heads will default the MAESTRO to energy measurement. The display will default to a dual display in real time and scope (Fig 2-1) in auto range mode.

7- Remove the head’s protective cover and start the laser.

Put the detector head into the laser beam path. Leave it there for a few minutes, until the detector has reached an equilibrium temperature. The entire laser beam must be within the sensor aperture. Do not exceed maximum specified densities, energies or powers. For the most accurate measurement, spread the beam across 60% to 80% of the sensor area.

Attention: Power heads can be used with both CW and pulsed lasers.

- Energy heads can only be used with pulsed lasers.

MAESTRO User’s Manual

Revision 8.1

17

Adjusting the zero (step 8a for power heads and 8b for photodiode heads)

8- The power read by the MAESTRO when no laser beam is incident on the detector may not be exactly zero. For power measures, this is because the detector is not thermally stabilized OR there was a heat source in the field of view of the detector when you turned on the MAESTRO. As for photodiode measures, zeroing will remove the detector’s offset.

a.Block off laser radiation to the detector. To reset the zero, wait until the reading has stabilized and touch Zero in the parameters menu. Two options will appear (On or Off), select On. You are now ready to take an accurate measurement. To turn the Zero Offset off, select Off.

Fig. 2-3 Parameters menu to set the detector’s zero level

b.If you have connected a photodiode to the MAESTRO, you must cover the diode and the zero has to be done for all scales. You will not have to do this manually for each scale as this is automatically done when you turn “on” the zero. In some software versions, a message appears requesting you to put the black cover over your photodiode. Touch the OK button after you have done so. The MAESTRO passes through all the scales to determine the zero diode for each scale. The message “Diode Zero Done” appears when the MAESTRO has determined the zero diode.

Notes:

•Refer to specific power detector documentation for complete installation and operating instructions.

•Power detectors are thermal sensors and are thus sensitive to temperature variations. For high-precision measurements, it is recommended to:

•Allow the power detector temperature to stabilize before zeroing the MAESTRO.

•Touch only the stand when handling the power detector. Do not touch the detector head.

•Do not zero adjust the energy detectors, such as the QE series.

Avoid forced airflow or drafts around the detector.

MAESTRO User’s Manual

Revision 8.1

18

9- Apply the laser beam to the detector head.

10The laser beam average power or energy can be displayed in four ways for your convenience:

a.Digitally for real time measurements;

b.On a scope graph to evaluate the laser’s variations in time;

c.On a digitally produced analog display using a needle for easy visualization of the laser beam power variation during laser fine-tuning;

d.Averaged over a certain number of measurements;

e.Complete statistical results over a certain period of time.

MAESTRO User’s Manual

Revision 8.1

19

2.3Description of the MAESTRO navigation menu

This section describes the first group of menus essential to the MAESTRO’s operation. Refer to Figure 2-2 for a schematic view of the menu structure.

The navigation menu bar provides access, at any time, to the five main options by touching the appropriate icon.

Fig. 2-4 The navigation menu bar

Table 2-2 List of Navigation menu bar options

Option	Icon	Description
		Allows you to manage the MAESTRO’s and the detector head’s
		settings. You will have access to:
			Device settings
HOME			Measurement settings
			Display settings
			Acquisition settings
		Information about the MAESTRO device
		This option allows the user to easily access, in alphabetical order,
SEARCH		some of the available functions on the MAESTRO.
		Displays the MAESTRO’s and the connected detector head’s
INFO		information and settings
		Allows you to manage the USB key. It displays the files currently on
MANAGE USB		the USB key and lets you rename or delete a file.
		Returns to the measurement window.
BACK TO
MEASURE

By touching an icon in the navigation menu, the MAESTRO will display the appropriate menu window, allowing you to set or select the desired settings or options.

MAESTRO User’s Manual

Revision 8.1

20

2.4Home

The Home menu allows you to access and change any settings for the MAESTRO and the connected detector head. You can choose between 5 options:

Set Device controls the MAESTRO’s basic parameters;

Set Measure controls the data measured by the detector head;

Display controls the display mode of the data measured by the detector head.

Acquisition controls the acquisition parameters to save the measured data on the USB key.

Startup Config configures the measurement settings at startup.

About displays all the information relative to the current MAESTRO monitor.

Fig. 2-5 The HOME menu window

2.4.1Set Device

The Set Device lets you set and save the MAESTRO with customized parameters. You can set the time and date of the device (not yet available), set the displayed significant digit, set the serial commands, configure the Ethernet, and set the language (English, French, German, or Japanese). To exit the device

settings window touch the exit button or select any other option from the navigation bar at the bottom of the window.

MAESTRO User’s Manual

Revision 8.1

21

Fig. 2-6 The Set Device menu window

2.4.1.1Date & Time (Not available on this version, check our web site for new versions)

The Date & Time button adjusts the time and date of the monitor's internal clock. This information is used to timestamp files when you are logging data.

2.4.1.2Number of Digits

To set the significant figures of the numerically displayed value, touch the Number of Digits button. You will be able to choose the precision of 3, 4, or 5 digits. You can also choose the default settings, which will let the device choose the best resolution to fit the scale. Absolute accuracy depends on the head.

When the number of digits is set, touch the OK button

to save the changes or touch the cancel

button to ignore the changes.

MAESTRO User’s Manual

Revision 8.1

22

Fig. 2-7 The Number of digits menu window

2.4.1.3Serial Commands

The Serial Commands Menu allows you to configure the serial communication and input/output port settings. Refer to section 3.4.3 for the complete serial commands directory. All the settings in this menu are automatically saved, which means that at each reboot, the last changed settings will be loaded.

In order to ease the integration of the MAESTRO with setups using our legacy monitors, select SOLO2 Serial Compatibility. Note that only the ASCII commands are available. This feature is only available when using the USB port for serial communication. Refer to section 3.4.4 for more information about the available SOLO2 commands.

For fast data acquisition in energy mode, select Serial Binary Measurement. Refer to section 3.4.2 for more information on how to use the MAESTRO’s serial binary measurement mode.

The serial communication can be done via USB port or RS-232 port. To use the RS-232 port, you must use the special cable (part number 201860). Before using the serial communication after it was changed, you must reboot the MAESTRO.

To use the analog output using the special cable (part number 201958), select Analog Output. The MAESTRO will not need to be rebooted. This output allows the monitoring of the laser’s average power or energy with external equipment such as a chart recorder, a computer with an analog interface, a voltmeter, etc. In the case of a power measurement, the output signal represents the amplified and anticipated power detector response. In the case of an energy measurement, the output signal is a DC voltage representing the pulse energy value. In order to improve the signal to noise ratio, the 1 volt value corresponds to the full scale reading of the selected range. The measured power or energy is then related to the output voltage and to the selected range according to the following equations:

Power Voutput Range

MAESTRO User’s Manual

Revision 8.1

23

Energy Voutput Range

For example, an output of 0.4 volts on the 30 W scale corresponds to 12 watts of laser power. If on the 10 W scale, then 0.4 volts is equivalent to 4 watts.

Fig. 2-8 Serial Commands menu window

2.4.1.4Ethernet

The MAESTRO allows the user to remotely control and acquire data. To configure the Ethernet settings, touch the Ethernet button.

By default, the Ethernet capability is disabled, check the box to enable it. Note that enabling the Ethernet port may increase the noise of the device if used without an Ethernet cable. You must always reboot the MAESTRO after changing the Ethernet settings.

The Maestro runs TCP server applications. It can assign static or dynamic IP addresses. It is recommended to use a dynamic IP address for most applications in order to prevent problems on your network. When using a static IP address, please make sure you enter valid and available IP address.

Always ask your IT specialist for an available IP address. This will prevent conflicts and problems on your network. If you are not sure which IP address to use, please use the dynamic IP address type, which will automatically assign an available address.

Before booting the MAESTRO, connect it to a network cable. Boot the MAESTRO and access the Ethernet Configuration Menu via Home / Set Device. Enable the Ethernet capability. You can choose to specify a static IP address and enter your own IP address, or you can choose a dynamic IP address and the server will automatically assign an IP address to the MAESTRO. If needed, you can change the port

number. When you are done with the setup, simply touch the OK button and reboot the MAESTRO. If the address type was set to dynamic, access the Ethernet Config menu to retrieve the assigned IP address.

MAESTRO User’s Manual

Revision 8.1

24

The device can now be accessed with a simple TCP client application, such as HyperTerminal. Only native MAESTRO commands are supported with the Ethernet communication. Please make sure that the SOLO2 Serial Compatibility is unchecked in the Serial commands menu (refer to section 2.4.1.3). Please refer to section 3.2 for installation instruction on the PC.

Fig. 2-9 Ethernet Configuration menu window

2.4.1.5Languages

The Maestro allows the user to choose between an English, French, German, or Japanese display. Chinese will also be available in the future. Check Gentec-EO’s website for updates.

MAESTRO User’s Manual

Revision 8.1

25

Fig. 2-10 Language Configuration menu window

2.4.2Set Measure

Options in the Set Measure menu define user-adjustable measured data parameters. The Wavelength can be changed in order to set it to the wavelength at which the detector is used. The power or energy Range allows you to adjust the scale in order to obtain the best possible resolution. Correction factors that will affect the reading can be easily programmed. They can be used for a beam sampler, attenuator, or other optics that require you to multiply and/or add offsets to the detector reading. Trigger Level and Measure Mode are also found in the Set Measure menu.

MAESTRO User’s Manual

Revision 8.1

26

Fig. 2-11 The Set Measure menu window

2.4.2.1Wavelength

The Wavelength menu is used to select the proper wavelength at which the detector is used. It applies a correction to adjust for the variation in responsivity at different wavelengths. Pre-programmed wavelength correction factors dedicated to each detector head are available and automatically loaded from the detector EEPROM, for version 5 and higher detector heads. When a new detector is plugged in, the calibration wavelength is the default selection.

To change the wavelength, select the appropriate wavelength from the Wavelength menu. For photodiodes, left and right arrows will allow you to access all the available wavelengths. Once the

wavelength is set, touch the OK button to save the changes or touch the cancel button to ignore the changes.

MAESTRO User’s Manual

Revision 8.1

27

Fig. 2-12 The Wavelength menu windows

The MAESTRO automatically recognizes the latest energy and power detector for accurate autocalibration. More importantly, it takes advantage of our Personal wavelength correction™: it reads the memory in the Smart Interface connector to provide a wavelength correction based on spectral data measured from that specific detector. Your measurements across the band have never been this precise or easy.

You can also adjust for a wavelength other than the preset wavelength. The MAESTRO will use the preprogrammed data in the detector’s EEPROM. When working at such a wavelength, it will not be available

in the Wavelength menu; you must manually enter the desired wavelength by touching the edit button. A popup window menu will appear prompting you to enter the wavelength. When the wavelength

is set, touch the OK button to save the changes, or touch the cancel button to ignore the changes. The MAESTRO only allows you to choose values that fall within the detector’s range. If you enter an invalid value, a menu pops up to signal the error and the MAESTRO automatically selects the default value, which is the wavelength used for calibration at Gentec-EO during manufacturing or subsequent service.

MAESTRO User’s Manual

Revision 8.1

28

Fig. 2-13 Popup window to enter a user defined wavelength

Once you have entered a new wavelength in the MAESTRO, you can save your settings (refer to section 2.4.5).

2.4.2.2Range

The Range menu window is used to select the signal level read by a detector head. When a new head is plugged in, the auto mode is the default option. In this condition, the MAESTRO automatically selects the best range for the value being measured. You can also choose a fixed scale according to the specific connected detector head. The MAESTRO only shows range values that fall within the detector head’s range. You can only choose from these available ranges