USER MANUAL
MODEL PMA2100 PHOTOMETER / RADIOMETER
Part Number: 210092
Revision Level: D
100 East Glenside Avenue • Glenside, PA 19038 • USA • P 1.215.517.8700 • F 1.215.517.8747
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www.solarlight.com • info@solarlight.com • www.youtube.com/user/SolarLightCoInc
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TABLE OF CONTENTS
1 INTRODUCTION......................................................................................................................................................................4
1.1 PMA2100 Design Concept...........................................................................................................................................4
1.2 Major Features.............................................................................................................................................................4
1.3 Currently Supported Detectors....................................................................................................................................4
2 QUICK START GUIDE...............................................................................................................................................................5
2.1 Selection Of The Detector............................................................................................................................................5
2.2 Measuring With PMA2100...........................................................................................................................................5
3 CONTROLS & INDICATORS...........................................................................................................................6
3.1 Display..........................................................................................................................................................................6
3.2 Keypad..........................................................................................................................................................................7
3.3 Audible Signals............................................................................................................................................................7
3.4 Error Messages............................................................................................................................................................7
4 SETUP......................................................................................................................................................................................8
4.1.1 LCD Contrast
4.1.2 Line Frequency Rejection
4.1.3 Real Time Clock and Calendar
4.2.1 Low Pass Digital Filter
4.2.2 Automatic Datalogging
4.2.3 Scale
4.2.4 Offset
4.2.5 Alarms
4.2.6 Mode Of Operation
4.1 Meter Setup..................................................................................................................................................................8
4.2 Detector Setup...........................................................................................................................................................8
5 DATA MANAGEMENT......................................................................................................................................................11
5.1 Data Logging..............................................................................................................................................................11
5.2 Downloading The Data.............................................................................................................................................11
5.3 Data Processing.......................................................................................................................................................12
6 INTERFACES.........................................................................................................................................................................13
6.1 Detector Interface......................................................................................................................................................13
6.2 Serial and Extension Port.........................................................................................................................................14
6.3 Digital Control Lines................................................................................................................................................14
7 TECHNICAL SPECIFICATIONS...............................................................................................................................................15
8 MAINTENANCE....................................................................................................................................................................16
8.1 Meter Calibration.......................................................................................................................................................16
8.2 Battery Charging......................................................................................................................................................16
9 TABLE OF FIGURES...............................................................................................................................................................16
10 INDEX...................................................................................................................................................................................17
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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.
INTRODUCTION
1.1 PMA2100 DESIGN CONCEPT
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 includes
identification information, signal processing algorithms, a description of
the data presentation and the current setup of the detector.
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.
PMA2100
DISPLAY
CONNECTOR
AND CABLE
CENTRAL
PROCESSOR
& MEMORY
SYSTEM
CONVERTER
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.
DETECTOR
AMPLIFIERS
SENSOR
KEYPAD
Figure 1 Architecture of the PMA2100
1.2 MAJOR FEATURES
Measuring with the PMA2100 is as simple as with the 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 1.21 include:
• User Selectable System Of Units
• Integration Of The Accumulated Dose
• Tracking Of The Extremes Of The Signal (Min., Max., Avg.)
• Automatic & 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 & 60Hz
• Two Simultaneously Serviced Detector Inputs
• Serial Interface
• Digital Inputs & Outputs To Control External Devices
• Dose Control System (DCS) Capability
DETECTOR
MEMORY
1.3 CURRENTLY SUPPORTED DETECTORS
The PMA2100 family currently includes a variety of detectors for such
parameters as:
• UVA Radiation
• UVB Biologically Effective UV Radiation
• UVC Germicidal Radiation
• Visible Light (Photopic and Scotopic)
• Full Spectrum Pyranometers
• UV Safety
• Biliruben Phototherapy
• PAR Photosynthetically Active Radiation
• Laser Power
• Temperature/Humidity
*For a complete list of detectors see
www.solarlight.com/product_category/products/sensors
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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:
• Laboratory 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.
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While sophisticated and powerful, the PMA2100 is a user-friendly instrument allowing for simple “plug-and-play” operation.
2.1 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:
• Anticipated signal characteristics
• 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.
QUICK START GUIDE
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.
2.2 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 16 for battery maintenance
instructions. The unit will be powered ON whenever connected to
the external power supply. The PMA2100 will turn itself OFF after 3
minutes of inactivity if no detector is attached.
Refer to “Controls and Indicators” on page 6 for detailed
description of the PMA2100 “data mode” display.
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 If only one detector is attached, the meter’s display will
automatically switch to the only occupied channel. If two detectors
are simultaneously operating, use thekeys to switch between
the channels. While displaying the measurement result, the PMA is
in a “data mode,” as opposed to a “setup mode” when the meter or
Figure 2 The PMA2100
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CONTROLS & INDICATORS
3.1 DISPLAY
The graphical Liquid Crystal Display (LCD) of the PMA2100 offers great
flexibility of the data presentation. It shows the measurement results
and allows easy setup of the meter via a series of menus.
When the meter is turned ON, it displays a start-up screen (Figure 3)
while performing the hardware test. The model number, version number
and the serial number of the meter are briefly displayed.
SOLAR LIGHT CO., INC.
PMA2100
S/N: 07587 VER: 1.21
Figure 3 Start-up Screen Of The PMA2100 Meter
Then, the display goes into the “data mode.” If at least one detector is
attached, the measurement results are shown (Figure 4). Otherwise the
screen indicates that there is no detector connected (Figure 5).
LOW, HIGH AND
AVERAGE VALUES
INSTANTANEOUS
READING
INTEGRATED DOSE
DATA STORAGE
INTERVAL IN MINUTES
HOLD INDICATOR
H F D! J! CS015
L0.123 H1.245 A0.948
DETECTOR NAME
LOW PASS DIGITAL
FILTER INDICATOR
UVA
1.234 mW/cm
∑2.354 J/cm
UNITS PRINT SETUP
Figure 4 Display In The “Data Mode” With A Detector Connected
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DOSE AND VALUE
ALARM INDICATORS
41m 23
BATTERY
CHARGING INDICATOR
2
s
SELECTED UNITS
TIME OF INTEGRATION
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
keys changes the selection.
The HOLD indicator is activated by pressing the HOLD 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.
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 9 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 pages 8 and 9 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 dose value.
See “Alarms” on page 10 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 16
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 is activated. To re-start
the tracking, turn the feature OFF and then back ON by pressing the
Min/Max key twice.
NODET
Figure 5 Display In The “Data Mode” With No Detector Connected
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F1 F1
MED/HR
Figure 6 Pressing The F1 Function Key Converts The Measurement Result
Into One Of The Available Unit Systems. UVB Detector Display Units Shown
uW/cm
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Time/MED
The instantaneous reading is displayed in a large font for improved
readability. The 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 F1 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 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.
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
“Display” on page 10). High, low and average values will be reset to
zero on restart of the Min/Max function.
F1
Hold
On/Off
F2 F3
Min/Max
INCR
DECR
Start/Stop Menu
Escape Enter
3.2 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.
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 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.”
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 8 for further details.
Thekeys 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
thekeys allow navigation through menu list.
Figure 7 Keypad Configuration Of The PMA2100
3.3 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 1 CONDITIONS CAUSING
A GENERATION OF AN AUDIBLE SIGNAL
Power On 1 Long Beep
Activation Of Any Key
Acceptance Of An Newly Connected Detector
Detector Disconnected
Activation Of A Value Or Dose Alarm
1 Short Beep
1 Short Beep
3 Short Beeps
5 Short Beeps
3.4 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.
Thekeys allow navigation through a list of menu items and
decrement/increment the selected digit allowing a numerical value to
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TABLE 2 ERROR CODES AND MESSAGES
Code Message On LCD Description Of The Problem
01 Detector Conflict
02
Upgrade Software
03 Out Of Calibration
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.
The detector requires higher version of the software controlling the PMA2100. This message is displayed
immediately after the new detector is connected. Contact Solar Light for upgrade.
The detector is due for calibration. The detector should be returned to Solar Light for re-calibration. Various detectors have different calibration intervals, depending on their inherent long-term stability.
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SETUP
4.1 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 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 8), since they are specific for a particular detector.
4.1.1 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:
1 Press the Menu/Enter key to enter the “menu mode.”
2 Select the Contr: X item on the menu pressing or keys.
4.1.3 LINE REAL TIME CLOCK AND CALENDAR
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 the Menu/Enter key to enter the “menu mode.”
2 Select the Clock... item on the menu pressing or 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 theicon, such as in this
example:change month. Press theorkey to decrement
or increment the selected item. When this item is properly set use
theto select next item for editing. The items available are: year,
month, day, hour, minutes, and seconds.
4 When the date and time is properly set, press either Enter or
Escape key to leave the time setting menu.
3 Keep pressing the Menu/Enter key until optimal contrast of the
LCD is selected.
4 Press the Escape key to return to the “display mode.”
4.1.2 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:
1 Press the Menu/Enter key to enter the “menu mode.”
2 Select the Line: XXHz item on the menu pressing or keys.
3 Press the Menu/Enter key until appropriate frequency is selected.
4 Press the Escape key to return to the “display mode.”
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5 Press the Escape key to return to the “display mode.”
4.2 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.
4.2.1 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 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 keys if two detectors are
attached.
2 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.
3 Use thekeys to select the Fltr: XXX item. The XXX will indicate
either ON or OFF.
4 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.
4.2.2 AUTOMATIC DATA LOGGING
The PMA2100 is capable of storing the measurement data either in
manual or automatic mode. Refer to “Data Logging” on page 11 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 1 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 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 annotated by the word
SETUP on the LCD. A menu of available settings will be presented
on the LCD.
3 Use thekeys to select the Sav: XXm item. The XX represents
the currently selected interval in minutes. If automatic data logging
is not activated then Sav: 0m (zero) will be shown.
4.2.3 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 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 annotated by the word
SETUP on the LCD. A menu of available settings will be presented
on the LCD.
3 Use thekeys 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 thekeys to move the cursor between the digits of the scale
value. Usekeys to increment or decrement the selected digit.
If the cursor is placed underneath the sign of the number then
pressing thekeys 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.
4.2.4 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 keys if two are attached.
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 thekeys 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.
2 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.
3 Use thekeys to select the Ofs: X.XXX item. The X.XXX
represents the currently set offset, typically 0.000.
4 Press the Menu/Enter key to enter the offset editing mode. The
name of the currently selected detector is shown on the LCD.
5 Use thekeys to move the cursor between the digits of the
offset value. Usekeys to increment or decrement the selected
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digit. If the cursor is placed underneath the sign of the number
then pressing thekeys will toggle the sign between + and -.
6 Press Menu/Enter to accept the new offset 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 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.
4.2.5 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 disabled.
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 One item is marked as currently selected by a frame around it. If
change in settings is needed, then use thekeys to select the
item to modify.
6 If the ON/OFF status of the alarm needs to be changed, simply
press the Menu/Enter key. It toggles the ON/OFF setting.
7 If a threshold value must be changed, then press the Menu/Enter
key in order to enter the number editing mode. Use thekeys to
move the cursor between the digits of the threshold value.
Use keys to increment or decrement the selected digit. If the
cursor is placed underneath the sign of the number, then pressing
thekeys 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 detector are written to the
detector’s memory. Skipping this step or disconnecting the
detector beforehand is equivalent to ignoring the changes made.
Figure 8 Generation Of Value & Dose Alarms
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 14).
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 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 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.
UVBIO ALARMS
Value Alarm: ON
@ 5.500 uW/cm
Dose Alarm: OFF
@ 20.000 mJ/cm
Figure 9 Example Of Alarm Settings Displayed On
The PMA2100’s LCD For A Detector Identified As “UVBIO”.
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4.2.6 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.
Any detector whose signal can be integrated with respect to time
can operate either in the traditional “Meter” mode or in the “DCS”
mode. Refer to the PMA2100 Dose Control System Users Manual for
operation in the DCS mode.
3 Use thekeys to select the Alrm... item.
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5
DATA MANAGEMENT
5.1 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 9 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 and keys while in the display mode. The data record is then
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 manual data logging can also be used at the same
time automatic mode is activated.
The PMA2100 is capable of logging up to 1,024 data records. Table
3 illustrates how the logging interval translates to the maximum
recording time for a single detector. After the data buffer is filled, the
new records will start overwriting the oldest records in memory. Logged
data is preserved when the PMA is powered down or if the battery runs
down since the memory is non-volatile.
If data from two sensors are being logged, maximum recording length
will be 1/2 that shown in Table 3.
Along with the measurement result the following information is stored:
• Date & 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.
5.2 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 ON.
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.
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 1 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 values are stored.
TABLE 3 DATA BUFFER CAPACITY OF 1024 RECORDS
TRANSLATED INTO RECORDING DURATION FOR A SINGLE DETECTOR
Data Storage Interval [Minutes] Max Data Record length
1
5
10
15
30
60
17 hours
3.5 days
7.1 days
10.7 days
21.3 days
42.7 days
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 If the data is to be stored on your PC’s hard drive, activate the data
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
11
key combination (hold the Ctrl key and press C).
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.
5.3 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 Separated Format.
As an example the steps necessary to import a PMA2100 file into a
Microsoft Excel worksheet are listed:
The data are downloaded in a text format following the template shown
in Table 4.
TABLE 4 FORMAT OF THE DATA DOWNLOADED FROM PMA2100
Detector
Type
Serial
Number
Record
Date
Record
Time
Recorded
Value
Units Flags Calibration
Due Date
TABLE 5 EXAMPLE OF DATA FILE DOWNLOADED FROM THE PMA2100
SN:07587 Rec#0002
31,”02245”,” 2.06.2005”,”14:00:00”, 48.5,”lux “, 1.000,000,”23.04.2006”
31,”02245”,” 2.06.2005”,”14:20:00”, 56.5,”lux “, 1.000,000,”23.04.2006”
END.
The fields are separated by commas. The non-numerical values, such
as serial number, date, time, 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.
1 Download the data from the PMA2100 and save in a file called
PMA.TXT.
2 In Excel, place the cursor on an empty page in a cell where you
want the data block to begin.
3 From the menu select Data then Import External Data then
Import Data...
4 In the file selection box, select the file with the data, in this
example PMA.TXT.
5
In the Text Import Wizard Step #1 select Delimited then click Next.
6 In Step #2 select Comma as the delimiter and “ as the Text
qualifier then click Finish.
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
Field Contents
Detector Type
Serial Number The string containing the serial number of the detector Enclosed In “”
Record Date The date stamp of the measurement. The date is formatted as follows: dd.mm.yyyy
Record Time The time stamp of the measurement. The time is formatted as follows: hh:mm:ss
Recorded Value The measurement result Numerical
Units Units used for measurement result Enclosed In “”
Scale Factor The scale factor effective during measurement. See “Scale” on page 16 for additional information Numerical
Flags Decimal representation of the detector setup flags:
Calibration Due Date The date the detector is/was due for calibration. The date is formatted as follows: dd.mm.yyyy
The last two digits of the detector type. For example the detector PMA2131 has the type code 31
where:
dd = day, mm = month, yyyy = year
where: hh = hours, mm = minutes, ss = seconds
1 Low Pass Filter Active
2 Dose Integration Active
4 Value Alarm Active
8 Dose Alarm Active
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
where: dd = day, mm = month, yyyy = year
(see page 8-9)
(average is stored)
(see p. 10)
(see p. 10)
Type
Numerical
Enclosed In “”
Enclosed In “”
Numerical
Enclosed In “”
12
6
INTERFACES
6.1 DETECTOR INTERFACE
The PMA2100 detector interface provides connections for the
PMA2100 can generate a warning, should a conflict occur.
See “Error Messages” on page 8 for further details.
detector’s analog signals, the power for the detector and the digital
interface for the detector’s memory.
Each of the two PMA2100 detector interfaces (ports) provides 2
independent analog inputs, designated Input0 and Input1. Moreover, the
two inputs are available directly as well as through a 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 functional description of the individual pins.
The inputs of the other port are also available on the pins of each
detector interface in order to handle detectors 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
TABLE 7 PMA2100 DETECTOR INTERFACE CONFIGURATION
(BOTH PORTS HAVE THE SAME CONFIGURATION)
Pin Number Signal Description
1
2
3
4
5
6
7
8
9
10
11 -5V power 5mA Max.,
12 +5V power 20mA Max.,
13
14
Shield POWER AND DIGITAL GROUND (connected to pin 13 inside the PMA2100 meter)
ANALOG INPUT 2 -
High Level (1:10 Divider)
ANALOG INPUT 1 Low Level
ANALOG INPUT 2 -
Low Level
ANALOG INPUT 1 -
High Level (1:10 Divider)
ANALOG GROUND
ANALOG GROUND
OTHER DETECTOR’S ANALOG INPUT 2 -
High Level (1:10 Divider)
OTHER DETECTOR’S ANALOG INPUT 1 -
Low Level
OTHER DETECTOR’S ANALOG INPUT 2 -
Low Level
OTHER DETECTOR’S ANALOG INPUT 1 -
High Level (1:10 Divider)
POWER AND DIGITAL GROUND
(connected to shield inside the PMA2100 meter)
DIGITAL I/O
(connected to memory capsule)
VIEW FROM THE BACK OF THE PLUG
2 4 6 8 10 12 14
1 3 5 7 9 11 13
Figure 10 Detector Input Pin Assignment.
±4V Full Scale, 300kΩ Impedance, ESD Protected
±0.4V Full Scale, 29.1 kΩ Impedance, ESD Protected
±0.4V Full Scale, 29.1 kΩ Impedance, ESD Protected
±4V Full Scale, 300kΩ Impedance, ESD Protected
Internally Connected to Power/Digital Ground -
Do not connect to power GND inside the detector
--- As above ---
±4V Full Scale, 300kΩ Impedance, ESD Protected
±0.4V Full Scale, 29.1 kΩ Impedance, ESD Protected
±0.4V Full Scale, 29.1 kΩ Impedance, ESD Protected
±4V Full Scale, 300kΩ Impedance, ESD Protected
80Ω Internal Resistance,
ESD Protected
(THE CABLE END)
Specifications
Short Circuit Protected
22Ω Internal Resistance,
Short Circuit Protected
13
6.2 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 a PC, a standard AT modem cable can be
used in place of the one that is provided with the meter. 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
Pin Number Signal Description Specifications
12
24
25
3
3
4
7
RxD -
Data Input
TxD -
Data output
DCD -
Data Carrier Detect Input
GROUND
ANA2
AGND
ANA1
Switching Threshold Approx.
1.5V, with 0.5V Hysteresis;
Accepts Standard RS232C Levels
High State: +5V Low State:
Equal to the RxD’s Low Level
RS232C Levels
Digital Ground
Analog Signal from Right Detector Input
Analog Ground
Analog Signal from Left Detector Input
TABLE 9 PMA2100 TO MODEM CONNECTION
PMA DB25 connector Modem DB25 connector
Pin Number Signal Pin Number Signal
2
3
7
RxD
TxD
GND
3
2
7
TxD
RxD
GND
6.3 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 3kΩ) 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)
High (Open)
THRESHOLD
VALUE EXCEEDED
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&D0Q1E0S0=2&C1&W0&Y0
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 the cable
connections between the PMA2100 and the modem.
14
Low (Closed)
b)
START PULSE
High (Open)
Low (Closed)
Figure 11 Digital Output Control:
a) From the Value Alarm System b) From the Dose Alarm System
10us<t<100us
DOSE REACHED
50ms<t<200ms
A short pulse (10μs<t<100μs) is generated when the dose integration
is started, either by pressing the START/STOP button or by a pulse on
the digital input. A longer pulse (50ms<t<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 (>200ms) to a corresponding digital input.
If both the value and dose alarms are activated, then the value alarm
takes precedence over the dose alarm, i.e. the digital output will be held
low as long as the value threshold is exceeded.
The optically insulated inputs DIGI1 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 digital output (Figure 14.)
7
Figure 12 Digital, Optically Coupled Outputs
Figure 13 Digital, Optically Coupled Inputs
a) Digital Input
High (+4V min)
Low (0)
b) Digital Output
High (Open)
Low (Closed)
Figure 14 Starting Dose Collection From The Digital Input.
DOSE INTEGRATION
STARTED
START PULSE
GENERATED
AT THE
OUTPUT
10us<t<100us
DOSE INTEGRATION
STOPPED
STOP
PULSE
GENERATED
50ms<t<200ms
TECHNICAL SPECIFICATIONS
Detector Inputs
Input Ranges
Resolution
Dynamic Range
Accuracy
Non-Linearity
Operating Environment
Temperature Coefficient
Power Source
Battery Life
Interfaces
Program Control
Size WxDxH
LCD Size
Weight
SPECIFICATIONS
2 Sockets with Up to 2 Analog Signals Each
±0.4V, ±4V, Auto Ranging
15μV on 0.4V Range
5
>2x10
0.5% FS All Ranges
Max. 0.02% FS Within Each Range
32 to 120°F (0 to +50°C)
Max 50ppm/°C
4 x AA NiCd or Alkaline Batteries, 9-12V AC or DC Charger
Up to 40 Hours Between Charges
RS-232 Serial Interface and Opto-Isolated Digital I/O
12-Button Keypad
4” x 1.75” x 7.5” (10 x 4.3 x 19.2 cm)
2.25” x 1.25” (5.7 x 3 cm)
18 oz. (510 grams)
15
8
MAINTENANCE
8.1 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 1 minute per
month. Since there are no mechanically adjustable components in the
meter, its calibration is extremely stable. Nonetheless, the calibration
should be periodically checked. The recommended calibration interval is
one year. The calibration is done in a computerized tester and must
be performed by 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 Solar Light Company.
8.2 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 batteries.
To charge the NiCd batteries, an external 9V DC power adapter must
be connected with a current capacity of at least 300mA. The charge
controller built into the PMA2100 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 reaches full
charge. It takes approximately 6 hours to fully charge the 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.
BATTERY
CHARGING INDICATOR
H F D! J! CS015
L0.123 H1.245 A0.948
1.234 mW/cm
∑2.354 J/cm
UVA
2
41m 23
2
s
UNITS PRINT SETUP
Figure 15 Battery Charging Indicator.
9
FIGURE
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
16
TABLE OF FIGURES
DESCRIPTION PAGE
Architecture of the PMA2100 6
The PMA2100 5
Startup Screen of the PMA2100 Meter 6
Display in the “Data Mode” With a Detector
Connected
Display in the “Data Mode” With No Detector
Connected
Pressing the F1 Function Key Converts the
Measurement Result into One of the Available Unit
Systems.
UVB Detector Display Units Shown
Keypad Configuration of the PMA2100 7
Generation of Value and Dose Alarms 10
FIGURE
Figure 9
6
6
6
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Example of Alarm Settings Displayed on the
PMS2100’s LCD for a Detector Identified as
“UVBIO”
Detector Input Pin Assignment 13
Digital Output Control: a) From the Value
Alarm System b) From the Dose Alarm
System
Digital, Optically Coupled Outputs 15
Digital, Optically Coupled Inputs 15
Starting Dose Collection from the Digital Input 15
Battery Charging Indicator 16
DESCRIPTION PAGE
10
14
10
INDEX
Alarms......................................................10
Digital Output.........................................14
Applications.................................................5
Audible Signals..........................................7
Averaging...............................................8, 11
Battery
Charging...............................................16
Calendar....................................................8
Calibration.................................................16
Clearing The Data.......................................12
Clock.......................................................7,8
Communication.....................................11,14
Computer Interface.....................................14
Contrast.....................................................8
Controls.......................................................6
Data
Buffer...............................................11,12
Buffer Capacity......................................11
Clearing................................................12
Downloading.....................................11,12
Format..............................................11,12
Importing...............................................12
Logging.............................................7,8,9
Management........................................11
Processing.............................................12
Storage.............................................4,11
Data Mode...................................................5
Decrementing Numbers................................7
Detector Interface.......................................13
Detectors.....................................................5
Inputs......................................................5
Selection..................................................6
Switching.................................................6
Detectors.....................................................4
Connecting..............................................5
Setup..............................................4,6,8,9
Diagnostic...................................................6
Digital Control Lines....................................14
Digital Filter.............................................8,9
Display........................................................6
Structure.................................................6
Dose.........................................................4,6
Downloading..............................................11
Edit Mode....................................................7
Filter.........................................................8,9
Function Keys...........................................7,9
HOLD......................................................7,12
Importing Data.........................................12
Incrementing Numbers.................................7
Indicators....................................................6
Integration....................................7,11,12,14
Interfaces..................................................13
Keypad.......................................................7
LCD Contrast...............................................8
Line Rejection.............................................8
Logging Data..............................................9
Low Pass Filter.....................................8,9,12
Maintenance..............................................16
Menu/Enter..................................................7
Min/Max
Tracking..................................................6
Model Number.............................................6
Modem Connection....................................14
Offset.........................................................9
ON/OFF.......................................................5
PMA2100
Applications.............................................5
Design Concept........................................4
Detectors.................................................5
Features..................................................4
Measuring With........................................5
Setup...................................................7,8
PRINT.........................................................11
Real Time Clock.........................................8
Scale Factor.................................................9
Serial Number..............................................6
Serial Port.............................................11,14
Cable.....................................................14
Setup....................................................11
Setup..........................................................7
Setup Mode.................................................5
Start/Stop....................................................7
Technical Specifications..............................15
Time........................................................8,9
Tracking Min. and Max...........................4,7,8
Tracking Min/Max.........................................6
Troubleshooting.........................................16
Units.........................................................4,7
Conversion..............................................7
17
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