Spectral Evolution PSR-1100f Manuale utente

PSR-1100f

Portable Spectroradiometer

Operator’s Manual

PSR-1100fManual

Revision: 1.06

8/28/17

Table of Contents

1Introduction..............................................................................................................3

2Hardware and Interface Description.........................................................................4

2.1 Part Identification ..............................................................................................4

2.1.1 Spectrometer .............................................................................................4

2.1.2 Battery Pack...............................................................................................4

2.1.3 Optical Input...............................................................................................4

2.1.4 Serial Communications ..............................................................................4

2.1.5 Front Panel ................................................................................................5

2.1.6 Back Panel.................................................................................................5

2.1.7 Scan Switch...............................................................................................5

2.2 Interface Specification.......................................................................................6

2.2.1 Battery Pack...............................................................................................6

2.2.2 USB Serial Connector................................................................................6

2.2.3 Serial Communications via USB or Bluetooth Virtual COM Port.................7

2.2.4 ESD protection:..........................................................................................7

3Control Panel...........................................................................................................8

3.1 Indicators..........................................................................................................8

3.2 Control Panel Switches.....................................................................................8

3.2.1 Power Switch.............................................................................................8

3.2.2 Membrane Switches...................................................................................8

3.2.3 Switch Function..........................................................................................8

3.3 LCD Display......................................................................................................8

3.3.1 Scan Types................................................................................................8

3.3.2 Status Messages .......................................................................................9

3.3.3 Parameter Menu ........................................................................................9

3.3.4 Modifying a Parameter.............................................................................10

4Operational/Functional Description........................................................................11

4.1 Setup ..............................................................................................................11

4.2 Standalone Operation.....................................................................................11

4.3 Operation with a host PC ................................................................................13

5Battery Charger.....................................................................................................14

5.1 Introduction.....................................................................................................14

5.2 Operation........................................................................................................14

5.3 Information and Warnings...............................................................................14

Appendix B: PSR-1100fSpecifications..........................................................................15

Appendix C: Bluetooth Information................................................................................16

Appendix D: White Reference.......................................................................................16

Appendix E: CE Compliance Declaration ......................................................................17

Revision History............................................................................................................17

PSR-1100fManual

Revision: 1.06

8/28/17

1 Introduction

This manual contains data concerning the PSR-1100ffield-portable spectroradiometer

system. The PSR-1100f consists of a UV-visible-NIR range spectrometer with

integrated fiber optic input that produces output calibrated to units of spectral radiance

(W/m2/nm/sr). Additional calibrations for spectral irradiance (W/ m2/nm) may apply for

optional foreoptic accessories. Energy enters the spectrometer from an external

illumination source by way of the optical input. The spectrometer is a dispersive PDA

system operating in the range of 320–1100 nm with a 512-element array detector.

All electronics for controlling the PSR-1100fsystem operation are built into the

instrument. The instrument incorporates manual controls and on-board storage for self-

contained field operation, as well as the capability to connect to a host computer system

using the provided application software via USB or Bluetooth communications interface.

The instrument is powered by a Li-Ion battery pack (provided with each system).

The PSR-1100fcontains an internal microprocessor that controls the data acquisition of

the detector array, the communication interface to the host PC, and provides data

storage. Calibration data and spectral data (collected in standalone mode, described

below) are stored in flash memory. The PSR-1100f has a built-in shutter for automatic

dark measurements. The dark current data are retained in RAM and the microprocessor

automatically performs mathematical functions on collected spectral scan data, including

dark subtraction and automatic integration adjustment.

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Revision: 1.06

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2 Hardware and Interface Description

2.1 Part Identification

2.1.1 Spectrometer

The spectrometer component of the SR-1100fis a crossed Czerny-Turner configuration

using a ruled grating as the dispersive element. Energy enters the spectrometer and is

collimated before being reflected off the grating and refocused onto the PDA detector.

The detector is a 512-element array, covering the spectral range 320–1100 nm. The

spectrometer and controlling electronics are contained in the housing.

2.1.2 Battery Pack

The PSR-1100fuses a Li-Ion battery pack as a power source, supplied with the system.

The Li-Ion battery runs at a nominal 7.4V and is designed to provide more than 3 hours

operation following a full charge. When the battery voltage falls too low to power the

instrument, it will turn off and go to 0 volts. Remove the battery from the instrument for

recharging with the supplied charger. Refer to Section 5: Battery Charger for charging

details.

2.1.3 Optical Input

The PSR-1100fcomes with a removable 25° FOV (field of view) fiber optic cable. Other

foreoptics may be added to the fiber to change the systems input FOV.

The entire spectrometer/foreoptic system is factory-calibrated for radiance using a NIST-

traceable source. The calibration coefficients are stored in flash memory by the internal

microprocessor. The application software retrieves these coefficients and applies them

to acquired scan sample data to convert to radiometric units.

2.1.4 Serial Communications

Communications with the PSR-1100fare conducted using USB or Bluetooth.

USB communications require a standard cable with USB-B connector to fit the

receptacle on the control panel. The first time the host PC is connected to the instrument,

Windows® will need to install drivers for the virtual COM port functionality. These drivers

are included on the USB-SW (Spectral Evolution Flash Drive) that was provided with

your unit. Once the drivers are loaded, the provided Windows® application software

interacts with the spectroradiometer using a virtual COM port in the same fashion as a

standard RS-232 serial port (115200 baud, 8 data bits, 1 stop bit, no parity).

The PSR-1100fis also enabled for wireless communications with the application

software provided the user has installed a Bluetooth serial port on the host PC.

Depending on your Bluetooth adapter’s configuration utility, you will need to enter an

identifier for your instrument type (typically called its PIN key or pairing code) the first

time you use your PSR-1100f. For either instrument this code is “psr1100”. Your

PSR-1100fManual

Revision: 1.06

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Bluetooth utility will recognize the instrument by a unique name with the syntax

“PSR-1100 ####”, where #### is replaced by the serial number of the unit.

Figure 1: Front Panel view of the PSR-1100/PSR-1100F

2.1.5 Front Panel

The front panel of the PSR-1100fcontains the on/off switch, USB connector, battery

receptacle and a control panel with membrane switches and LCD display. On either side

of the front panel there are two mounting brackets for attaching a shoulder strap. See

Section 3: Control Panel for more information.

2.1.6 Back Panel

The opposite end of the PSR-1100fcontains the optical input, Bluetooth antenna and

optional tripod mount.

2.1.7 Scan Switch

The Scan Switch is located on the top cover of the spectroradiometer. Depressing the

switch initiates the start of a standalone spectral scan.

PSR-1100fManual

Revision: 1.06

8/28/17

Figure 2: View of PSR-1100foptical components

2.2 Interface Specification

2.2.1 Battery Pack

Your PSR-1100fis supplied with one or more Li-Ion battery packs that fit into the recess

on the front panel. Slide the spring-loaded catch to the side (away from the recess) with

a finger to insert or remove the battery.

Important: See Section

PSR-1100fManual

Revision: 1.06

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Battery Charger for details on charging the external battery and safe operation.

2.2.2 USB Serial Connector

For communications via USB, the front panel is equipped with a USB Type-B receptacle

connector, compatible with all standard USB cables with Type-B plug.

Pin 1: +5V

Pin 2: D-

Pin 3: D+

Pin 4: GND

2.2.3 Serial Communications via USB or Bluetooth Virtual COM Port

Baud Rate: 115200 bps

Parity: none

Data Length: 8

Stop bit: 1

Flow Control: none

2.2.4 ESD protection:

+/- 15 KEV human body model,

+/- 8KEV contact discharge

PSR-1100fManual

Revision: 1.06

8/28/17

3 Control Panel

The control panel of each PSR-series spectroradiometer contains the controls

and displays that are required for the stand-alone operation of the instrument.

3.1 Indicators

The Control Panel has 2 LED status indicators.

Power LED: The power indicator is illuminated when the power is on.

Connect LED: The connect indicator is illuminated when the instrument is NOT

connected to a computer via Bluetooth communication link.

3.2 Control Panel Switches

3.2.1 Power Switch

The power switch provides on/off control of the unit.

3.2.2 Membrane Switches

The three (3) membrane push button switches provide control of the unit during

standalone operation and the capability of modifying the unit’s operation. The functions

of the switches are detailed below.

3.2.3 Switch Function

Scan: Steps through scan options (Reference/Target/Dark Scans)

Menu: Steps through the menu options (Memory Scan#/Dark Scan Mode/Scan

Timer/Optic

Edit: Toggles or cycles through parameter lists for each menu option

3.3 LCD Display

The LCD display is an eight (8) character, two (2) row display that shows the selected

scan and status messages.

ROW 1 displays the scan types, status messages, and battery voltage. The SCAN

button allows the user to select the type of scan to perform.

ROW 2 displays the parameter menu. The MENU button allows the user to scroll

through a set of available parameters, and the EDIT button changes the parameter

settings.

3.3.1 Scan Types

The next type of scan to be collected is displayed in row 1 as follows:

REF x.xx - Indicates that a spectral measurement will be stored as a Reference Scan;

current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when indicated.

PSR-1100fManual

Revision: 1.06

8/28/17

TAR x.xx - Indicates that a spectral measurement will be stored as a Target Scan;

current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when indicated.

DRK x.xx - Indicates that a dark measurement will be acquired. The dark measurement

will be stored in volatile memory (not flash) and used for subsequent scaled dark

measurements. The current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when

indicated.

Pressing the SCAN button cycles through these options. Note that after a REF scan is

taken, the instrument automatically switches to collecting TAR scans.

3.3.2 Status Messages

These messages are also displayed on row 1:

SCANNING - Indicates that a spectral data acquisition is being performed.

BUSY - Indicates that the instrument is performing a lengthy internal operation.

3.3.3 Parameter Menu

The parameter menu is displayed on row 2. The MENU button allows the user to cycle

through the following parameters. The EDIT button changes the parameter values.

MEM# xxx - Displays the memory slot that will hold the next acquired scan. The

allowable values are from 1 to 500. The memory slot cannot be adjusted by the keypad,

with the exception of completely erasing all memory.

To erase all memory and set MEM# to one (1), the <MENU> and <EDIT> keys must be

pressed simultaneously. IMPORTANT! This operation permanently erases all internally

stored scans taken in standalone operation mode.

DRK xxxx - Selects the dark subtraction mode:

AUTO - Automatic Dark mode is selected. Dark current measurement will be acquired

automatically prior to each scan. The dark currents will be acquired at the same settings

as the target scan.

SCLD - Scaled Dark mode is selected. Dark Current for each scan will be scaled, based

on the integration time and the Dark Scan that was acquired manually using the Dark

scan.

STIM xxx - STIM xxx is the scan averaging time. The allowable values are from 1 to 30.

The length of time for a scan is xxx seconds, for each light and dark scan.

O:xxxxxx - Entrance optic option. This must be set to the entrance optic in use for

correct calibration factors to be applied. There can be up to eight (8) optic calibration

options stored in a single instrument. Some possibilities are listed below:

(1) LENS 4 –4 degree FOV lens

(2) FIBER1 –standard 25 degree FOV fiber optic

(3) LENS14 –14 degree FOV lens

(4) RAW DN –no calibration applied

PSR-1100fManual

Revision: 1.06

8/28/17

3.3.4 Modifying a Parameter

(1) Depress the MENU button to locate the parameter you wish to edit.

(2) Modify the parameter by depressing the EDIT button. The push button switches are

programmed to scroll the menu of available options.

(3) Depress the MENU button again to save the selected parameter setting.

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