Spectral Evolution PSR-1100f User manual

PSR-1100f
Portable Spectroradiometer
Operator’s Manual

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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

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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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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

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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.

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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

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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

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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.

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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

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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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4 Operational/Functional Description
All Spectral Evolution PSR series spectroradiometers operate as portable field
instruments with onboard data storage and an easy-to-use manual control panel for
standalone operation. Combined with a host PC, the PSR can also be controlled for
acquisition in real time and for retrieval and display of the stored scan data.
4.1 Setup
To use the PSR-1100, install a fully charged battery pack by inserting it into the battery
slot located on the instrument’s front panel. Switch the power switch to the ON position.
After a brief initial power-on period, the LCD indicator will display the message “REF”
followed by a battery voltage reading and the currently-selected foreoptic calibration, e.g.
“O: LENS4” for the PSR-1100 or “O:FIBER1” for the PSR-1100F.
4.2 Standalone Operation
Dark Measurement Overview
A dark measurement must be taken prior to taking reference or target measurements.
Dark measurements are taken automatically by the instrument in AutoDark Mode, or are
taken manually by the operator when in Scaled Dark Modes.
In AutoDark Mode, the internal shutter automatically closes and dark measurement
taken immediately prior to the reference or target scan; there is no need to ever take a
dark measurement manually.
If Scaled Dark Mode is used, however, a dark measurement must be taken manually. A
new dark measurement should be taken periodically, more often under changing
environmental conditions.
Using AutoDark Mode ensures that the latest dark values are subtracted on every scan;
however, enabling AutoDark doubles the amount of time the scan requires to complete.
The dark measurement is subtracted from the Reference and Target measurements.
Dark measurements are stored in the PSR’s RAM and are not saved when the power is
cycled.
Reflectance Measurement Overview
A reflectance measurement takes the scan of a reference (white plate) and calculates
the ratio of the target scan to that reference. Unless the instrument is set to AutoDark
Mode (where it takes a new dark reading with every scan) - if any of the below
conditions exist, a new dark measurement should be taken:
•After instrument power-up and warm-up, but before acquiring any reference/target
scans.
•Every 3-5 minutes thereafter; more often if time and conditions allow, or if lighting
or environmental conditions are changing.

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If any of the below conditions exist, a new reference measurement should be taken
before a series of target measurements:
•Beginning of a new set of scans.
•Any change in the collection optics.
•The instrument has been idle for an extended period, or has been turned off.
•Lighting conditions have changed or are variable.
When in doubt, take a reference measurement!
Taking a DARK Measurement (Skip these steps in AutoDark Mode)
1. Check that the LED Power Indicator is illuminated, indicating that the power is
enabled.
2. Press the Menu membrane switch unit the LSCN menu item appears; press the Edit
membrane switch so that ON appears.
3. Press the Menu membrane switch until the DRK menu item appears; press the Edit
membrane switch so that SCLD appears. This enables the Scaled Dark Mode for
standalone operation.
4. Press the Scan membrane switch until the DRK x.xx scan message appears on the
LCD. (x.xx indicates battery voltage) Check to see if battery is adequately charged.
5.. The dark measurement just taken is associated with all succeeding measurements
until a new Dark measurement is established. Dark measurements are stored in volatile
memory (not flash) and must be retaken whenever the instrument power is cycled.
Taking a REFERENCE Measurement
1. Check that the LED Power Indicator is illuminated, indicating that the power is
enabled.
2. Press the Menu membrane switch unit the LSCN menu item appears; press the Edit
membrane switch so that ON appears.
3. Press the Scan membrane switch until the REF x.xx scan message on the LCD. (x.xx
indicates battery voltage) Check to see if battery is adequately charged.
4. Place a reference at the point of measurement making sure to completely fill the field
of view of the instrument. This reference measurement is associated with all succeeding
measurements until a new reference measurement is established.
Taking a TARGET Measurement
1. Check that the LED Power Indicator is illuminated indicating that the power is enabled.
2. Press the Menu membrane switch until the LSCN menu item appears; press the Edit
membrane switch so that ON appears.
3. Press the Scan membrane switch until the TAR x.xx scan message on the LCD. (x.xx
indicates battery voltage) Check to see if battery is properly charged.
4. Place a reference at the point of measurement making sure to completely fill the field
of view of the instrument. This reference measurement is associated with all succeeding
measurements until a new reference measurement is established.

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4.3 Operation with a host PC
The PSR-1100F interacts with Spectral Evolution’s DARWin SP software (provided with
your instrument) running on the host PC via USB or Bluetooth virtual COM port
connection.
The primary tasks that can be performed by running DARWin SP while connected to
your spectroradiometer are:
Controlling the instrument remotely and collecting and displaying scan data in
real time, with expanded control options, and
Retrieving and displaying scan data collected and stored during standalone
operation.
Be sure to install the software (and any USB/Bluetooth communications drivers as
needed) prior to the first time you connect to the instrument.
When running DARWin SP make sure your instrument has a charged battery and that it
is powered and that the proper communications interface has been enabled. Once
communications have been established, a brief initialization sequence follows and then
your system is ready for use.
For detailed information on how to use DARWin SP with your PSR Series
spectroradiometer, see the DARWin SP User Manual included with your instrument.

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5 Battery Charger
5.1 Introduction
The provided battery charger is used to charge one lithium-ion battery (nominal 7.5VDC,
2800 mA-h). The charger operates from 110/240 volt AC line supply. Follow all
directions for proper, safe operations. Only charge batteries indoors in a cool place.
5.2 Operation
To charge the external battery pack:
1. Remove the battery pack from the instrument.
2. Plug the charger’s round male plug into the battery pack’s female jack.
3. Plug the charger into an AC outlet.
The charger’s RED LED will be illuminated during charging; when charging is complete
the charger’s GREEN LED will be illuminated.
Charging a battery from empty to full capacity (approximately 8.4VDC) will take
approximately 2-3 hours.
5.3 Information and Warnings
Cells: 18650 Li-ION cells with IC protection are used inside the battery pack
Protection: 4A max polyswitch is installed in the battery pack for double over-discharging
protection.
The battery will be automatically cut off to zero (0) volts when its voltage falls too low for
PSR operation.
WARNINGS:
Avoid heavy impact to the battery pack; this may cause the battery pack to
malfunction.
Do not expose the battery pack to fire or extreme heat; this may cause the
battery pack to malfunction.
Do not use any DC power supply or charger other than the dedicated battery
charger supplied with your instrument; this may cause the battery pack to
malfunction.
Also, always power the PSR Series instrument with its battery only. NEVER use the
dedicated battery charger to provide power to the instrument.

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Appendix B: PSR-1100f Specifications
Performance Specifications
Spectral Range
320–1100 nm
Spectral Resolution
nominal
<= 3.2 nm
Spectral Sampling Bandwidth
nominal
1.5 nm
Detector
512 element Si PDA
A/D Converter
16 bit
Wavelength Accuracy
.5 nm
Wavelength Reproducibility
.1 nm
Integration Time
8-2000 ms
Physical Specifications
Power
Supplied 2800 mA-h Li-Ion battery pack with
charger, 7.5V nominal
Size
7” x 3.25”x 5.75”
Weight
< 4 lbs
Communications Interface
USB and Bluetooth virtual COM ports
Foreoptics
25° fiber optic with fixed keyed mount and
radiance calibration (other options available)
Onboard Storage
> 500 scans in stand-alone mode
Environmental Specifications
Operation
Temperature
-10–40°C
Humidity
15–90% non-condensing
Storage
Temperature
-20–70°C
Humidity
15–90% non-condensing

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Appendix C: Bluetooth Information
Bluetooth Versions Supported: V1.1
Bluetooth Class: Class I
Bluetooth Connection Type: Virtual COM Port
Bluetooth Connection Pin Key/Pairing Code: psr1100
Appendix D: White Reference
Your instrument may have been supplied with a White Reference Plate designed to be
used as the reference material for reflectance scans. The plate is made of
polytetrafluoroethlyene (PTFE) and has high diffuse reflectance.
Over time the surface of the plate may become dirty or scratched. In order to restore the
plate to its original properties, it can be cleaned by sanding the PTFE material under
running water with a 220-240 grit waterproof emery cloth until the surface is totally
hydrophobic (water beads and runs off immediately). Sanding should be done gently, in
a figure-8 motion, rinsing away the sanded off layer as you go. When complete, dry the
surface by blowing nitrogen or clean compressed air over the surface.

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Appendix E: CE Compliance Declaration
Revision History
Revision Tracking
Changes
Date
1.00
Original Draft
4/5/11
1.01
Added Appendix D on White Reference
5/16/12
1.02
Updated specifications
5/29/12
1.03
Updated mailing address
11/15/12
1.04
Added CE Compliance Declaration,
PSR-1100F discussion
12/6/13
1.05
Updated pictures and discussion for PSR-1100F
2/10/14
1.06
Updated pictures and discussion for PSR-1100f
8/28/17
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