User's Guide
Contents
1. Value Dose Figure 8 Generation of value and dose alarms disabled mess 10 200 Value alan Value alarn generated generated 8 160 Valve alarm threshold L 4 72 1 5 1 G gt 6 4 120 1 5 42 1 Ko 5 2 4 TAI A_I C3 J CJ l a L I Bose alarm threshold 80 a gt 2 i Dose alarm 2 1 generated 40 0 0 i 1 Time i I 1 I 1 18 Solar Light Co Inc Figure 8 illustrates the conditions in which the alarms are generated Each time the measured value crosses over the value alarm threshold the value alarm is generated Since the accumulated dose cannot decrease the dose alarm is generated only once in each integration cycle unless the dose threshold was increased during that cycle The alarm is indicated by a series of 5 short beeps and an alarm message appears on the screen with an arrow pointing to the detector port that triggered the alarm In addition the alarm system generates a pulse on the digital output See Digital control lines on page 27 The status ON or OFF and threshold of both value and dose alarm are preserved in the detector s memory and automatically applied when the detector is connected to the PMA2100 To view or modify the alarm settings follow these steps 1 Select the detector to be set up with 4 gt keys if two are attached 2 Press the SETUP key to enter the detector setup mode2. The real time clock and calendar provides the information for time stamping of the recorded data To set the real time clock follow these steps 1 Press Menu Enter key to enter the menu mode 2 Select the Clock item on the menu pressing w or 4 keys 3 Press the Menu Enter key to start the time setting procedure The LCD will show the current date and time The item selected for modification is listed by the w 4 icon such as in this example w 4 change month Press the w or 4 key to decrement or increment the selected Solar Light Co Inc 15 item When this item is properly set use the gt to select next item for editing The items available are year month day hour minutes seconds 4 When the date and time is properly set press either Enter or Escape key to leave the time setting menu 5 Press the Escape key to return to the display mode Detector Setup The detectors are equipped with a non volatile memory to store configuration information specific to a particular detector When the detector is connected these configuration parameters are read from the detector and used to set up the PMA Among the parameters stored are user configurable settings such as low pass filter ON OFF data logging parameters scale and offset values alarm settings and operating mode Low pass digital filter The low pass digital filter is used to reduce the fluctuations of a noisy signal Due to its averaging nature it will
3. Clearing the data 21 Clock 14 Communication 21 Computer interface 21 Contrast 14 Controls 9 10 Data buffer 20 buffer capacity 20 clearing 21 downloading 21 format 22 importing 22 logging 11 15 20 management 20 processing 22 storage 15 Data mode 8 10 Decrementing numbers 13 Detector interface 24 detectors 8 inputs 8 selection 8 switching 8 Detectors 6 connecting 8 setup 5 11 14 15 33 Diagnostic 10 Digital control lines 27 Digital filter 15 Display 10 structure 11 Dose 6 11 Downloading 21 Edit mode 13 Filter 11 15 Function keys 12 HOLD 11 13 Importing data 22 Incrementing numbers 13 Indicators 10 Integration 6 11 12 20 Interfaces 24 Keypad 12 LCD contrast 14 Line rejection 14 Logging data 15 Low pass filter 11 15 Maintenance 31 Menu Enter 12 Min Max tracking 11 Model number 10 Modem connection 26 Offset 16 On Off 9 PMA2100 Applications 7 34 design concept 5 detectors 6 features 6 measuring with 8 setup 12 14 PRINT 20 Real time clock 14 Scale factor 16 Serial number 10 Serial port 21 26 cable 26 Solar Light Co Inc setup 21 Setup 12 Setup mode 9 Start Stop 12 Technical specifications 30 Time 14 Tracking min and max 6 13 Tracking min max 11 Troubleshooting 31 Units 6 12 conversion 12
4. The SETUP key is one of the function keys annotated by the word SETUP on the LCD A menu of available settings will be presented on the LCD The SETUP annotation only appears when the detector is attached 3 Use the gt 4 keys to select the Alrm item 4 Press the Menu Enter key to enter the alarm editing mode The name of the currently selected detector is shown on the top of the LCD and the settings of the alarms are displayed as shown in Figure 9 5 500 uW cm 5 One item is marked as currently selected by a frame Dose alarm OFF around it If change in settings is needed then use the w 4 keys to select the item to modify 6 Ifthe ON OFF status of the alarm needs to be changed simply press the Menu Enter key It Figure 9 Example of alarm settings toggles the ON OFF setting displayed on the PMS2100 s LCD for a 7 Ifa threshold value must be changed then press the detector identified as UVBIO Menu Enter key in order to enter the number editing mode Use the 4 keys to move the cursor between the digits of the threshold value Use v keys to increment or decrement the selected digit If the cursor is placed underneath the sign of the number then pressing the w 4 keys will toggle the sign between and 8 Press Menu Enter to accept the new threshold value The LCD will revert back to the alarm settings 9 Press the Escape key twice to return to the display mode At this time the updated alarm settings of the detecto
5. The baud rate of the serial port is preset at 2400bps allowing for cable lengths up to 20ft Due to the power saving features built into the PMA2100 the serial port s transmitter operates properly only if there is no incoming transmission i e the receiving line must be in a negative marking state The PMA2100 s receiver works properly all the time Table 8 Serial communication and extension port connector Number 2 RxD Data input Switching threshold approx 1 5V with 0 5V hysteresis accepts standard 3 TxD Data output High state 5V Low state equal to the RxD s low level 4 DCD Data Carrier RS232C levels etapa E ANA2 Analog signal from right detector input 24 AGND Analog ground EE ANAI Analog signal from left detector input The PMA2100 can be controlled from a remote computer via an external modem The modem connected to the PMA2100 should be set to auto answer in order to pick up the incoming calls automatically The modem s result codes should be disabled also For modems supporting the Hayes AT commands the following programming sequence is adequate AT amp DOQIEOSO 2 amp CI1 amp WO amp YO0 This sequence should be transmitted to the modem from a PC before this modem is connected to the PMA2100 Only the remote modem picking up the calls to the PMA2100 has to be set up in this way The PMA2100 is not able to dial the telephone number so the calls cannot originate from the PMA2100 Table 9 shows th
6. SETUP key to enter the detector setup mode The SETUP key is one of the function keys annotated by the word SETUP on the LCD A menu of available settings will be presented on the LCD 16 Solar Light Co Inc 3 Use the w A keys to select the Sav XX item The XX represents the currently selected interval in minutes If automatic data logging is not activated then Sav 0m zero will be shown 4 Press the Menu Enter key to enter the logging interval selection menu The currently set interval is shown on the header of the menu 5 Use w 4 keys to navigate through the list of valid intervals and to select the desired one Select NONE to disable data logging 6 Press Menu Enter to accept the selected interval The LCD will revert back to the detector setup menu 7 Press the Escape key to return to the display mode At this time the updated logging configuration parameters are written to the detector s memory Skipping this step or disconnecting the detector beforehand is equivalent to ignoring the changes made Scale An additional user preset scale factor can be applied to the measurement Normally the scale factor is set to 1 00 to accept the factory calibrated scale factor of the detector To change the scale factor follow these steps 1 Select the detector to be set up with gt keys if two are attached 2 Press the SETUP key to enter the detector setup mode The SETUP key is one of the function keys annotate
7. capture feature of your communication software before starting the data transfer For example in Procomm press the Alt F1 combination and enter the filename in the pop up window Refer to the manual of your communication program for detailed instructions about capturing the incoming data After the data are stored on the disk the data buffer may be cleared Otherwise the new data will be appended to the end of the previously recorded data which will also be included in the next downloading To clear the data buffer follow these steps 1 While connected to the PMA2100 via a serial port press the Ctrl C key combination hold the Ctrl key and press 22 Solar Light Co Inc 2 The PMA2100 responds with the following message Clear data Y N Pressing Y in response clears the contents of the entire data buffer Any other response preserves the data Clearing the data buffer will ensure that only new data points will be downloaded the next time data is retrieved from the PMA The data are downloaded in a text format following the template shown in Table 4 Table 4 Format of the data downloaded from PMA2100 Table 5 Example of data file downloaded from the PMA2100 SN 07587 Rec 0002 31 02245 2 06 2005 14 00 00 48 5 1 000 000 23 04 2006 31 02245 2 06 2005 14 20 00 56 5 1 000 000 23 04 2006 END The fields are separated by commas The non numerical values such as serial number date t
8. level 1 10 divider Analog ground 7 divider Other detector s analog input 1 low level Other detector s analog input 2 low level 4V full scale 300kQ impedance ESD protected ESD protected ESD protected protected Internally connected to power digital ground do not connect to power GND inside the detector 4V full scale 300kQ impedance ESD protected 0 4V full scale 29 1 kQ impedance ESD protected 0 4V full scale 29 1 kQ impedance ESD protected Other detector s analog input 1 high level 1 10 divider 4V full scale 300kQ impedance ESD protected 5mA max 80Q internal resistance short circuit protected Power and digital ground connected to shield inside the PMA2100 meter 90 memory capsule SHIELD Power and digital ground connected to pin 13 inside the PMA2100 meter 2 3 4 5 9 10 11 12 13 14 20mA max 2202 internal resistance short circuit protected ESD protected 25 26 Solar Light Co Inc Serial and extension port The PMA2100 is equipped with a RS232C serial port allowing communication with a computer or a serial printer The serial communication lines along with other analog and digital signals available on the 25 pin female D connector located on the bottom of the meter To connect the PMA2100 to the IBM PC compatible computer a standard AT modem cable can be used in place of the one that is provided with the meter
9. type code 31 The string containing the serial number of the detector Record The date stamp of the measurement The date is date formatted as follows dd mm yyyy where dd day mm month yyyy year The time stamp of the measurement The time is formatted as follows hh mm ss where hh hours mm minutes ss seconds Record time Numerical Enclosed Enclosed Enclosed in Recorded value The measurement result Numerical Units used for measurement result Enclosed in Scale factor The scale factor effective during measurement See Scale on page 16 for additional information Flags Decimal representation of the detector setup flags 1 low pass filter active see page 15 2 dose integration active average is stored 4 value alarm active see p 17 8 dose alarm active see p 17 16 DCS on off 32 DCS fixed time on off The flag codes are additive so if low pass filter is active together with dose integration the value of flags is 1 2 3 The date the detector is was due for calibration The date is formatted as follows dd mm yyyy where dd day mm month yyyy year Calibration due date Numerical Numerical Enclosed 24 Solar Light Co Inc Interfaces Detector interface The PMA2100 detector interface provides connections for the detector s analog signals the power for the detector and the digital interface for
10. values are stored Solar Light Co Inc 21 Along with the measurement result the following information is stored Date and time Type of detector Serial number of detector Units used during the measurement User pre set scale factor Detector setup flags Detector calibration due date NOTE If the integration mode is active the PMA stores the average value over the period since the last data point was logged Otherwise the instantaneous value is logged Downloading the data The data stored in the non volatile memory can be downloaded to a computer via a serial communication port RS232 To download the data from the PMA2100 follow these steps 1 Connect the PMA2100 to an available serial port on the computer using the cable provided with the meter 2 Turn the PMA2100 3 Start the communication software on your computer such as Procomm or Windows Terminal 4 Set the communication parameters of the appropriate serial port to 2400 N 8 1 Set the communications program to the ANSI Terminal Emulation mode 5 To start the download of the data press the P key on the computer s keyboard The data will be transmitted in a standard text format To stop the transmission press the C key The first line of data will contain the serial number of the PMA and the number of logged data points The end of data will be indicated by a line containing END 6 Ifthe data is to be stored on your PC s hard drive activate the data
11. 0 PMA2100 offers great flexibility of the data presentation It shows the measurement results and allows easy setup of the SIN 07587 Ver 1 19 meter via a series of menus When the meter is turned it displavs a start up screen Figure 3 while performing the hardware test The model Figure 3 Start up screen of the number version number and the serial number of the meter PMA2100 meter are briefly displayed Then the display goes into the data mode If at least one Dose and value alarm indicators N Battery Detector charging name indicator Data storage Hold interval in Low pass digital filter indicator minutes indicator AME L0 123 H1 245 A0 948 Instantaneous 2 Selected 1 234 integrated 2 354 J cm 141 23 Time of integration Sj Function key indicators Figure 4 Display in the data mode with a detector connected Solar Light Co Inc 11 detector is attached the measurement results are shown Figure 4 Otherwise the screen indicates that there is no detector connected Figure 5 The complete contents of the LCD are described in Figure 4 referred to several times in the following pages The two arrows in the top left and right corners indicate the currently selected detector Pressing the 4 gt keys changes the selection The HOLD indicator is activated by pressing the HOLD
12. 33 Solar Light Co Inc 5 Introduction The Personal Measurement Assistant model PMA2100 is a sophisticated multipurpose measuring instrument combining the user friendliness of simple meters with the capabilities of an advanced data logger PMA2100 design concept The combination of simplicity of use and enhanced features was possible thanks to the implementation of microprocessor technology and an innovative architecture The meter itself is programmed to perform the tasks common to most detectors The information specific for a particular detector is stored in a nonvolatile memory built into the detector itself It PMA2100 DISPLAY CONNECTOR DETECTOR AND CABLE AMPPLIFIERS A al CENTRAL ae i i jik DETECTOR MEMORY includes identification information signal processing algorithms a description of the data presentation and the current setup of the detector Figure 1 Architecture of the PMA2100 6 Solar Light Co Inc Upon connection of the detector the PMA2100 identifies it downloads the contents of the detector s memory into operating memory updates its setup and executes the downloaded code if appropriate This approach allows for an unlimited number of detectors to be handled by the PMA2100 It configures itself to the specific features of each detector and the custom setup of the measurement process Major features Measuring with the PMA2100 is as simple as with the
13. User s Guide Version 1 19 LIGHT eo Photometer Radiometer Model PMA2100 Version 1 19 Solar Light Company Inc 2 Solar Light Co Inc 2005 Solar Light Company All rights reserved 100 East Glenside Ave Glenside PA 19038 USA Tel 215 517 8700 Fax 215 517 8747 US Patent 5 790 432 Procomm is a registered trademark of Datastorm Technologies Excel and Windows are registered trademarks of Microsoft Corporation Document No PMA2902C October 2005 Printed in the United States of America Solar Light Co Inc 3 Contents USER S GUIDE 1 VERSION 1 19 1 MODEL 2100 VERSION 1 19 1 CONTENTS 3 INTRODUCTION 5 PMA2100 DESIGN CONCEPT 5 MAJOR FEATURES 6 CURRENTLV SUPPORTED DETECTORS 6 QUICK START 8 SELECTION OF THE DETECTOR 8 MEASURING WITH PMA2100 8 CONTROLS AND INDICATORS 10 DISPLAV 10 KEVPAD 12 AUDIBLE SIGNALS 13 ERROR MESSAGES 13 SETUP 14 METER SETUP 14 LCD CONTRAST 14 LINE FREQUENCY REJECTION 14 REAL TIME CLOCK AND CALENDAR 14 DETECTOR SETUP 15 LOW PASS DIGITAL FILTER 15 AUTOMATIC DATA LOGGING SCALE OFFSET ALARMS MODE OF OPERATION DATA MANAGEMENT DATA LOGGING DOWNLOADING THE DATA DATA PROCESSING INTERFACES DETECTOR INTERFACE SERIAL AND EXTENSION PORT DIGITAL CONTROL LINES TECHNICAL SPECIFICATIONS MAINTENANCE AND TROUBLESHOOTING METER CALIBRATION BATTERY CHARGING TABLE OF FIGURES INDEX Solar Light Co Inc 20 20 21 22 24 24 27 30 31 31 31 32
14. also as an Escape key in menu and setup mode In general it reverts to the previous menu level or leaves the menu mode and enters the display mode Start Stop The Menu Enter key transfers control to the menu mode allowing for the meter setup Settings for LCD contrast line frequency rejection or real time clock can be altered in that mode Refer to Meter setup on page i 14 for further details Figure 7 Kevpad configuration of the PMA2100 Solar Light Co Inc 13 The 4 gt keys allow for the selection of the displayed channel while in the display mode In edit mode when a numerical value is changed these keys select the digit to be changed When a menu is shown the 4 gt keys allow navigation through menu list The w 4 keys allow navigation through a list of menu items and decrement increment the selected digit allowing a numerical value to be edited They are inactive in the display mode Pressing the HOLD key freezes the information on the LCD without affecting the measurement and data collection process An H will be displayed in the upper left hand corner While in the hold mode pressing HOLD reactivates display updating The Min Max key initiates the Low High and Average tracking The same key clears the setting The tracking of extremes starts from the moment the feature is activated To re start the tracking turn the feature OFF and then back ON by pressing the Min Max key twice See Dis
15. d by the word SETUP on the LCD A menu of available settings will be presented on the LCD 3 Use the w keys to select the Scal X XX item The X XX represents the currently set scale factor typically 1 00 4 Press the Menu Enter key to enter the scale editing mode The name of the currently selected detector is shown on the LCD 5 Use the 4 gt keys to move the cursor between the digits of the scale value Use w A keys to increment or decrement the selected digit If the cursor is placed underneath the sign of the number then pressing the w 4 keys will toggle the sign between and 6 Press Menu Enter to accept the new scale value The LCD will revert back to the detector setup menu 7 Press the Escape key to return to the display mode At this time the updated scale factor for the detector is written to the detector s memory Skipping this step or disconnecting the detector beforehand is equivalent to ignoring the changes made Offset The measurement made by the PMA2100 can be offset by a user entered value in order to compensate for the drifts in the detector or to compensate for a background signal The offset setting is unit sensitive i e it takes the unit conversions into account and converts the offset values accordingly To modify the offset follow these steps 1 Select the detector to be set up with 4 gt keys if two are attached Solar Light Co Inc 17 2 Press the SETUP key to enter the detector setup
16. ded calibration interval is one year The calibration is done in a computerized tester and must be performed by the manufacturer or by an authorized laboratory Please contact Solar Light Company for further information The calibration of the detectors is independent from the meter s calibration The detector calibration accuracy depends on the type of detector It should be performed at least on a yearly basis The calibration can be performed by the manufacturer or by an authorized laboratory Battery charging The PMA2100 meter can operate directly from the AC line or from either rechargeable NiCd or non rechargeable alkaline batteries The battery compartment holds four AA size cells each with a nominal voltage of 1 2 or 1 5 volts The polarity of the batteries inserted into the battery holder should be observed NOTE The NiCd batteries should be fully charged before first use Never attempt to charge alkaline lt CEWE UVA gt batteries L0 123 H1 245 0 948 To charge the NiCd batteries an external 9V DC power 1 234 mWicm adapter must be connected with a current capacity of at 2 least 300mA The charge controller built into the 22 354 J cm 141 23 2100 assures that the batteries are not overcharged During the charging cycle a letter C is shown in the battery indicator position It disappears when the battery Figure 15 Battery charging indicator reaches full charge It takes approximately 6 hours to fully charge t
17. e cable connections between the PMA2100 and the modem Solar Light Co Inc 27 Table 9 PMA2100 to modem connection PMA DB25 connector Modem DB25 connector Pinnumber Signal Pinnnumber__ Signal Digital control lines The digital control lines of the PMA2100 can be used to control an external device such as a relay or valve acting as a closed loop feedback system or as a dose controller An example application is the monitoring and control of greenhouse temperature and the amount of light The PMA2100 s digital control lines provide 2 optically coupled inputs and 2 optically coupled outputs designed to connect with control equipment The pins of the digital control lines are available on the 25 pin connector which also accommodates the pins of the serial port The outputs DIGO1 and DIGO2 are controlled by the alarm system of detector port 1 and 2 respectively The optically isolated output is normally open high impedance indicated as high state in Figure 11 The output goes low impedance of about 3kQ when the value alarm is ON and the preset threshold is exceeded The output is set high when the signal goes back below this threshold A short pulse 10us lt t lt 100us is generated when the dose integration is started either by pressing a threshold value exceeded A high open low closed b high open low closed 10us lt t lt 100us 50ms lt t lt 200ms Figure 11 Digital
18. e value See Alarms on page 17 for further information The battery charging indicator displays C when the battery is charged and B when the battery is low Refer to Battery charging on page 31 for further details about battery maintenance The Low High and Average tracking can be initiated by pressing the Min Max key The same key clears the setting The tracking of extremes starts from the moment the feature MED Ht 57 Time MED is activated To re start the tracking turn the feature OFF and then back ON by pressing the Min Max key twice Figure 6 Pressing the F1 function key converts the L measurement result into one of the available unit The instantaneous reading is displayed in a systems UVB detector display units shown large font for improved readability The 12 Solar Light Co Inc currently selected units are displayed to the right of the measurement result If alternative units are available then the UNITS indicator appears above the F1 function key indicator By pressing the F1 key the measurement result will be converted to alternative units There can be more than two unit systems They can be selected by pressing the FI repeatedly After the last unit selection is reached pressing the F1 key will bring the display back to the initial unit selection If the measured quantity can be integrated over time then integration can be initiated by pressing the Start Stop key The
19. he NiCd batteries When the battery charge is low a letter B appears Only a few minutes of operation are available after the B indicator is activated Typically fully charged NiCd batteries will support operation of the PMA2100 for more than 24 hours 32 Solar Light Co Inc Table of figures Figure 1 Architecture of the PMA2100 5 Figure 2 The 2100 8 Figure 3 Start up screen of the 2100 meter 10 Figure 4 Display in the data mode with a detector connected 10 Figure 5 Display in the data mode with no detector connected 11 Figure 6 Pressing the FI function key converts the measurement result into one of the available unit systems UVB detector display units shown 11 Figure 7 Keypad configuration of the PMA2100 12 Figure 8 Generation of value and dose alarms 17 Figure 9 Example of alarm settings displayed on the PMS2100 s LCD for a detector identified as UVBIO 18 Figure 10 Detector input pin assignment 24 Figure 11 Digital output control a from the value alarm system b from the dose alarm system 27 Figure 12 Digital optically coupled outputs 28 Figure 13 Digital optically coupled inputs 28 Figure 14 Starting dose collection from the digital input 28 Figure 15 Battery charging indicator 31 Solar Light Co Inc Index Alarms 17 digital output 27 Applications 7 Audible signals 13 Averaging 11 Battery charging 11 31 Calendar 14 Calibration 31
20. ime and units are enclosed in quotes to comply with the commonly used Comma and quote Separated Format Table 6 contains detailed description of the individual fields of the data record Refer to Data processing chapter below for additional information about importing and processing the data Data processing The data downloaded from the PMA2100 can be imported into any commercial spreadsheet or data processing package supporting the import of data in Comma and Separated Format As an example the steps necessary to import a PMA2100 file into a Microsoft Excel 2003 worksheet are listed Download the data from the PMA2100 and save in a file called PMA TXT In Excel place the cursor on an empty page in a cell where you want the data block to begin From the menu select Data then Import External Data then Import Data In the file selection box select the file with the data in this example PMA TXT In the Text Import Wizard Step 1 select Delimited then click Next In Step 2 select Comma as the delimiter and as the Text qualifier then click Finish DP DD Solar Light Co Inc 23 The data is imported into the spreadsheet and can be manipulated with the various tools built into the software A macro can be created in most spreadsheet programs to automate the import of downloaded data Table 6 Description of the data record format Detector type The last two digits of the detector type For example the detector PMA2131 has the
21. integrated value and a corresponding time of the integration are displayed in the space below the instantaneous measurement value Figure 4 During integration the clock icon shown next to the time integration will indicate integration in process The integration is stopped by pressing the Start Stop key again The integration timer and the dose display freeze but the information is displayed on the LCD until the Start Stop key is pressed again When restarted the integrated value and the time will be reset to zero If data logging has been enabled pressing the Start Stop key will affect the value stored for the next logged data point The average value is logged when the dose integration is activated Instantaneous values are stored otherwise The assignment of the function keys F1 F3 can change dynamically depending on the mode of operation The indicators displayed along the bottom of the LCD describe the function of the keys If the key indicator is blank then the key has no assigned function Keypad The keys of the PMA2100 Figure 7 have a tactile feel and an audible signal is generated when the key is pressed The On Off key toggles the power to the meter It is only active in the display mode Min Max The Start Stop button enables the dose integration The integrated dose and a corresponding time of the integration are displayed in the space shown below the instantaneous measurement result Figure 4 The Start Stop key works
22. ital output Figure 14 30 Solar Light Co Inc Technical specifications Detector inputs Input ranges Resolution Dynamic range Accuracy Non linearity Temperature coefficient Sampling rate Data storage interval Operating temperature Power consumption Batteries Battery life External power Weight Size 2 detector inputs with up to 2 analog signals each or detector with up to 4 signals 0 4V 4V auto ranging 150 0 4V range gt 2 10 0 2 FS all ranges Max 0 02 FS within each range Max 50 ppm C Isec each input is measured once per second 1 minute to 2 hours either instantaneous values or averages over the storage interval 0 to 50 C non condensing Approx 80 mW 4xAA rechargeable NiCd or Alkaline batteries gt 24 hours for NiCd 9 12V AC or DC adapter 300mA min 18 oz 510 grams 4 W x 7 6 H x 1 75 D 10 x 19 5 x 4 5 cm Solar Light Co Inc 31 Maintenance and troubleshooting Meter calibration Both the PMA2100 meter and the detectors must be calibrated to assure accurate measurements The analog inputs of the PMA2100 are initially calibrated with an accuracy of 0 2 and the calibration factors are stored in its internal memory The internal real time clock is accurate to within Iminute month Since there are no mechanically adjustable components in the meter its calibration is extremely stable Nonetheless the calibration should be periodically checked The recommen
23. key When highlighted the contents of the display are frozen however the measurements and data logging dose integration or min max avg if enabled will continue in the background Pressing the HOLD key again reactivates the continuous data display Figure 5 Display in the data mode with no detector connected Data storage interval indicator displays the interval in minutes for automatic data logging for the currently selected detector If not displayed then data logging is not enabled for the currently selected sensor The data logging interval can be set independently for each detector See Automatic data logging on page 15 for further details about setting the interval The interval is stored in the detector and will be restored the next time it is connected to the PMA2100 The low pass digital filter can be turned on to reduce the fluctuations of a noisy signal This feature can be activated independently for each detector and is preserved in the internal detector s memory Refer to Low pass digital filter on page 15 for further details Dose and high value alarm indicators show whether the alarms are activated The alarm thresholds are set independently for each detector and stored in the detector s memory They are restored the next time the detector is connected When the instantaneous signal level exceeds the value alarm setting then an audible and visual signal is generated The dose alarm is triggered by the integrated dos
24. lar Light Co Inc Setup Meter setup The meter setup mode is accessed from the display mode by pressing the MENU key To return back to the display mode the Escape key should be pressed Meter setup allows for adjustments specific to the meter the contrast of the LCD the line rejection frequency and the real time clock The settings of measurement parameters are available through the Detector Setup menu see page 15 since they are specific for a particular detector LCD contrast The contrast of the LCD changes with the ambient temperature To assure a legible display the contrast can be adjusted for best visibility To change the LCD contrast follow these steps Press the Menu Enter key to enter the menu mode Select the Contr item on the menu pressing w or keys Keep pressing the Menu Enter key until optimal contrast of the LCD is selected Press the Escape key to return to the display mode PS Line frequency rejection The PMA2100 has an ability to discriminate against the 50 or 60 Hz interference from power lines To achieve the best performance the local line frequency must be set manually To set the line frequency follow these steps Press the Menu Enter key to enter the menu mode Select the Line XXHz item on the menu pressing w or keys Press the Menu Enter key until appropriate frequency is selected Press the Escape key to return to the display mode ee Real time clock and calendar
25. mode The SETUP key is one of the function keys annotated by the word SETUP on the LCD A menu of available settings will be presented on the LCD The SETUP annotation only appears when the detector is attached Use the w keys to select the Ofs X XXX item X XXX represents the currently set offset typically 0 000 Press the Menu Enter key to enter the offset editing mode The name of the currently selected detector is shown on the LCD Use the keys to move the cursor between the digits of the offset value Use A keys to increment or decrement the selected digit If the cursor is placed underneath the sign of the number then pressing the w 4 keys will toggle the sign between and Press Menu Enter to accept the new offset value The LCD will revert back to the detector setup menu Press the Escape key to return to the display mode At this time the updated offset of the detector is written to the detector s memory Skipping this step or disconnecting the detector beforehand is equivalent to ignoring the changes made Alarms The PMA2100 can generate an acoustic and visual alarm whenever the value of the measured quantity or the accumulated dose exceeds the preset threshold The thresholds for value alarm and the dose alarm are set independently The two alarms can also be independently enabled or
26. n simultaneously saved in memory and transmitted via the serial port A printer or a computer attached to the serial port can print or capture the data on line The Data storage Max data manual data logging can also be used at the same interval minutes record length time automatic mode is activated The PMA2100 is capable of logging up to 1 024 data records Table 3 illustrates how the logging 3 5 days interval translates to the maximum recording time 10 7 1 days for a single detector After the data buffer is filled the new records will start overwriting the oldest 15 10 7 days records memory Logged data is preserved Table 3 Data buffer capacity of 1024 records translated into recording duration for a single detector 21 3 days when the PMA is powered down or if the battery dys runs down since the memory is non volatile TaT days If data from two sensors are being logged 85 4 days maximum recording length will be 1 2 that shown in Table 3 If the INTEGRATION mode is active the PMA will store the average value of the data over the period since the last data point was logged The average is based on l second samples of the signals Pressing the PRINT key will store the average value calculated up to the point the key was pressed In both cases the data value averaging will begin again after the point is logged and will represent the period between logged samples only If INTEGRATION is not activated then instantaneous
27. output control a from the value alarm system b from the dose alarm system 28 Solar Light Co Inc ISIR PS2505 2 Iso2B PSesez 2 Pin 22 ETA IEQ1E Ps2ses 2 COMMONO ZOMMOHI Figure 12 Digital opticallv coupled outputs Figure 13 Digital opticallv coupled inputs the START STOP button or by a pulse on the digital input A longer pulse 50ms lt t lt 200ms is generated if the dose alarm is ON and the preset dose limit is reached or the integration is terminated by either pressing the START STOP key or applying a pulse gt 200ms to a corresponding digital input If both the value and dose alarms are activated then the value alarm takes precedence over the a Digital input dose high 4V min integration integration started stopped low 0 b Digital output dose Stop pulse generated high open JIL low closed 10us lt t lt 100us 50ms lt t lt 200ms Figure 14 Starting dose collection from the digital input Solar Light Co Inc 29 dose alarm i e the digital output will be held low as long as the value threshold is exceeded The optically insulated inputs DIGI and DIGI2 control the dose collection on detector port 1 and 2 respectively A positive pulse at least 200ms long toggles the dose integration The minimum pulse amplitude is 4V Similarly the start and stop of dose integration are flagged at the corresponding dig
28. ower supply The PMA2100 will turn itself OFF after 3 minutes of inactivity if no detector is attached Figure 2 The PMA2100 3 Plug the selected detector into one of the two detector inputs located on the side of the meter The meter will indicate the connection by a beep and the display will show the measurement result Squeeze the locking arms of the detector plug while connecting or disconnecting it 4 Ifonly one detector is attached the meter s display will automatically switch to the only occupied channel If two detectors are simultaneously operating use the gt keys to switch between the channels While displaying the measurement result the PMA is in a data mode Solar Light Co Inc 9 as opposed to a setup mode when the meter or detector setup is shown or edited Upon power up the PMA2100 automatically enters the data mode 5 In order to turn the PMA2100 OFF return to the display mode and press the On Off key If the LCD is in a mode other than display mode the On Off key is inactive To return to the data mode press the Start Stop Escape key repeatedly If unit is connected to external power it will remain powered up and an On Off will have no effect Refer to Controls and indicators on page 10 for detailed description of the PMA2100 data mode display 10 Solar Light Co Inc Controls and indicators Solar Light Co Inc Display The graphical Liquid Crystal Display LCD of the P MA21 0
29. play on page 10 High low and average values will be reset to zero on restart of the Min Max function Audible signals Certain conditions cause the generation of an audible signal to attract the attention of the user The conditions generating an audible signal are listed in Table 1 Table I Conditions causing a generation of an audible signal Activation of any key 1 short beep Acceptance of an newly connected detector 1 short beep Detector disconnected 3 short beeps Activation of a value or dose alarm 5 short beeps Error messages When an erroneous condition is detected by the PMA2100 an error number and a brief message are displayed to indicate the nature of the problem Table 2 Error codes and messages Code Message on LCD Description of the problem Detector conflict Some detectors use all 4 analog inputs available in the PMA2100 and cannot be used simultaneously with other detectors This message will appear when 2 incompatible detectors are connected to the PMA2100 Upgrade software The detector requires higher version of the software controlling the PMA2100 This message is displayed immediately after the new detector is connected Contact the manufacturer for upgrade Out of calibration The detector is due for calibration The detector should be returned to manufacturer for re calibration Various detectors have different calibration intervals depending on their inherent long term stability 14 So
30. r are written to the detector s memory Skipping this step or disconnecting the detector beforehand is equivalent to ignoring the changes made 20 000 mJ cM Solar Light Co Inc 19 Mode of operation Starting with Version 1 13 of the PMA2100 the Mode setting was introduced that toggles between 2 possible values Meter and DCS Dose Control System The Meter mode is the primary mode of operation and all information in this manual is related to this mode In the DCS mode the PMA2100 is configured to control the Solar Simulators manufactured by Solar Light Company 20 Solar Light Co Inc Data management Data logging The data measurement results can be logged stored in the PMA2100 s non volatile memory either in automatic or manual mode In automatic mode the data record is logged in user selectable intervals The storage interval for each detector can be set independently Refer to Automatic data logging on page 15 for information about setting the data storage interval When data logging is enabled the symbol SXXX will be displayed in the upper left hand corner of the LCD display with XXX indicating the number of minutes between samples In the manual mode one record of data is logged each time the PRINT key is pressed Only the data record for the currently selected detector is stored and printed The detector selection can be changed using the 4 and gt keys while in the display mode The data record is the
31. ratory measurements Environmental monitoring Industrial safety UV curing printing and photolithography Photodermatology and photobiology Cosmetic industry SPF testing Materials testing light degradation studies Agriculture Any sensor producing up to 4 analog signals can be quickly and inexpensively accommodated by the PMA2100 making it attractive to sensor manufacturers who would like to offer a state of the art meter with their product 8 Solar Light Co Inc Quick start While sophisticated and powerful the PMA2100 is a user friendly instrument allowing for simple plug and play operation Selection of the detector A critical part of every measurement process is the sensor selection The criteria that need to be addressed when making that decision are e Anticipated signal characteristics e Environmental factors such as temperature range and humidity The PMA2100 family includes detectors for both indoor and permanent outdoor operation satisfying virtually any operating environment Measuring with PMA2100 To perform measurements with a PMA2100 the following steps should be followed 1 Remove the PMA2100 from its carrying case 2 Power it ON by pressing the ON OFF button If the meter does not respond attach the battery charger to operate from external power or charge the batteries Refer to page 31 for battery maintenance instructions The unit will be powered ON whenever connected to the external p
32. smooth the signal and allow the measurement of the average To change the setting of the low pass filtering follow these steps 1 Select the detector to be set up with P keys if two detectors are attached Press the SETUP key to enter the detector setup mode The SETUP key is one of the function keys annotated by the word SETUP on the LCD A menu of available settings will be presented on the LCD The SETUP annotation only appears when the detector is attached Use the w A keys to select the Fltr X XX item The XXX will indicate either ON or OFF Press the Menu Enter key to set the status of the digital filter to a desired state 5 Press the Escape key to return to the display mode At this time the current setup of the detector is written to the detector s memory Skipping this step or disconnecting the detector beforehand is equivalent to ignoring the changes made FIR Automatic data logging The PMA2100 is capable of storing the measurement data either in manual or automatic mode Refer to Data logging on page 20 for more information about data logging In the automatic mode one record of data is logged in memory per user selected interval ranging from 1 minute to 2 hours If two sensors are attached at the same time the data logging interval can be set independently for each To initiate the automatic data logging follow these steps 1 Select the detector to be set up with 4 gt keys if two are attached 2 Press the
33. the detector s memory Each of the two PMA2100 detector interfaces ports provides 2 independent analog inputs designated nput0 and Inputl Moreover the two inputs are available directly as well as through 1 10 resistive divider to accommodate larger signals The direct inputs accept signals in a range of 0 4V to 0 4V The dividers extend that range 10 fold Table 7 provides detailed View from the back of the plug the cable end functional description of the individual 2 4 6 8 10 12 14 pins The inputs of the other port are also available on the pins of each detector interface in order to handle detectors 1 3 5 7 9 11 13 generating more than 2 voltages Both the direct and divided inputs of the other channel are available If a detector uses more than two analog inputs then only one detector at a time can be connected to the PMA2100 The detector s memory has an indication of the inputs used by the detector so the PMA2100 can generate a warning should a conflict occur See Error messages on page 13 for further details Figure 10 Detector input pin assignment Solar Light Co Inc Table 7 PMA2100 detector interface configuration both ports have the same configuration Specifications level Analog ground Analog input 2 low level Other detector s analog Analog input high input 2 high level 1 10 Pin Signal description Number 1 Analog input 2 high level 1 10 divider a Analog input low al
34. usual single detector and meter Plug in the detector to either of the two input sockets turn ON the power and read the display The many additional capabilities of the PMA2100 are added through menu driven setup These capabilities of the PMA2100 Version 1 19 include User selectable system of units Integration of the accumulated dose Tracking of the extremes of the signal min max avg Automatic and on demand data storage and printout Digital low pass filter Programmable alarms triggered by the signal level or the dose level Line interference rejection for both 50 and 60Hz Two simultaneously serviced detector inputs Serial interface Digital inputs and outputs to control external devices Dose Control System DCS capability Currently supported detectors The PMA2100 family currently includes a variety of detectors for such parameters as For a complete list of detectors see www solarlight com products detectors html UVA radiation UVB biologically effective UV radiation UVC germicidal radiation Visible light photopic and scotopic Full spectrum pyranometer UV safety Biliruben phototherapy PAR photosynthetically active radiation Laser power e Temperature Humiditv Solar Light Co Inc 7 The PMA2100 can be used in any application where an accurate measurement is required especially if multiple quantities are measured or the enhanced functionality of the meter is desired Potential applications include Labo
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