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PCE-UV 40A
UVA METER
Instruction manual
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TABLE OF CONTENTS
1. CHARACTERISTICS OF INSTRUMENT ......................................................................................... 3
1.1. Equipment................................................................................................................................. 3
1.2. Construction............................................................................................................................. 3
1.2.1. Measuring probe............................................................................................................. 3
1.2.2. Integrating meter ........................................................................................................... 4
1.3. Measured quantities............................................................................................................... 4
1.4. Technical data .......................................................................................................................... 4
1.5. Firmware update..................................................................................................................... 5
2. OPERATION ...................................................................................................................................... 5
2.1. Powering the instrument...................................................................................................... 5
2.2. Battery indicator ..................................................................................................................... 5
2.3. Measurement........................................................................................................................... 6
2.4. Menu........................................................................................................................................... 6
2.4.1. Zeroing .............................................................................................................................. 7
2.4.2. Memory ............................................................................................................................. 7
2.4.3. Calibration ........................................................................................................................ 7
2.4.4. Setup.................................................................................................................................. 7
2.4.5. Measuring ranges ........................................................................................................... 8
2.5. Turning off the instrument................................................................................................... 8
2.6. Calibration procedure............................................................................................................ 8
3. COMMUNICATION WITH PC ......................................................................................................... 9
4. SAFETY DURING MEASUREMENT................................................................................................ 9
5. USAGE RECOMMENDATIONS ...................................................................................................... 9
6. MAINTENANCE AND REPAIRS....................................................................................................10
7. CE MARKING AND CONFORMANCE TO EU COUNCIL DIRECTIVES ..................................10
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1. CHARACTERISTICS OF INSTRUMENT
The PCE-UV 40A
radiometer-photometer is a two-channel, integrating meter designed
for the control of observation conditions during non-destructive tests (NDT) by the
magnetic particle inspection (MPI) method. This kind of tests are used for detecting
surface and slightly subsurface discontinuities in ferromagnetic materials such as iron,
nickel, cobalt and some of their alloys
The meter has got two measuring channels:
• VIS – high quality luxmeter,
• UVA – UV-A range photometer.
The technical specification of the instrument conforms to the standards:
• ISO/CIE 19476 Characterization of the performance of illuminance meters and
luminance meters.
• EN ISO 9934 Non-destructive testing – Magnetic particle testing – Part 1: General
principles.
• EN ISO 3059 Non-destructive testing – Penetrant testing and magnetic particle testing –
Viewing conditions.
1.1. Equipment
Basic equipment:
• two-channel measuring probe,
• two-channel integrating meter,
• two LR03 batteries,
• instruction manual,
• warranty card.
Extra equipment:
• photometric probe handle,
• USB cable.
1.2. Construction
1.2.1. Measuring probe
The input window of the measuring probe is shared by two channels, which provides the
same directional assessment of radiation and doesn’t cause additional errors resulting
from the shift of the detectors for small measuring distances.
The position of the reception plane is marked on the cylindrical surface of the probe by
white dash (8.3mm from the front surface), which indicates the point from which the
distance between the source and the probe is measured.
white line indicating the position
of measuring probe's reception plane
ig.1. Position of the reception plane of the measuring probe.
F
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1.2.2. Integrating meter
The keyboard and L
CD screen are located on the front panel of the meter. The measuring
probe socket is on the top panel while the battery compartment and mini USB socket are
on the bottom panel. The USB socket can be used for the firmware update and meter
control.
1.3. Measured quantities
The PCE-UV 40A meter enables a simultaneous measurement of:
• illuminance (VIS channel),
• UV-A irradiance (UVA channel).
The result of the single measurement is the average value for 1 second. The measured
values are displayed on the LCD with the resolution specified in 1.4 Technical data,
reduced to the 4 most significant digits.
1.4. Technical data
UVA channel VIS channel
Spectral matching according to EN ISO 3059
• matching quality
∆λ
∆λ
λ
S
S
320 – 395nm f1' 2) ≤ 3%
1/10
337 – 385nm
1/2
max
λ=313nm
λ=405nm
365nm
< 5%
< 0.5%
V(λ) CIE
Direction matching
• matching quality
Nonlinearity
cosine
1)
f2
≤ 3%
cosine
f2
f3 1) ≤ 0.5% f3
2)
2)
≤ 3%
≤ 0.5%
Measuring range 3) 100 W/m2 (10 mW/cm2) 10 000 lx
Resolution 0.01 W/m2 (1 µW/cm2) 0.1 lx
Measurement memory 20 cells
Power supply 2x LR03 batteries (1.5V, AAA size)
Environmental conditions
• temperature
• relative humidity
-10 ÷ +50°C
90% (without condensation)
Dimensions
• meter 107×72×19mm (without measuring probe socket)
• measuring probe Ø44 x 25.5mm
• measuring probe cable length 1.5m
Weight with measuring probe and
batteries 335g
1)
Characterizing the Performance of Integral Measuring UV-Meters. Final Report of WG1 Thematic
Network for Ultraviolet Measurements. November 2000.
2)
ISO/CIE 19476 Characterization of the performance of illuminance meters and luminance meters.
3)
Minimum value guaranteed by manufacturer. Real value depends on sensitivity of used detector.
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Fig.2. Relative spectral sensitivity of both VIS and UVA channels.
1.5. Firmware update
The PCE-UV 40A firmware can be updated by the user. The update procedure is as follows:
• Download the SonBoot application from the manufacturer’s website.
• Download the PCE-UV 40A firmware from the manufacturer’s website.
• Connect the meter to a PC with the use of the USB cable.
• Wait for the installation of the drivers.
• Run the SonBoot application.
• Select the PCE-UV 40A from the “Device type” list
• Select the connected meter from the “USB Device” list
• Open the firmware file.
• Turn on the meter.
• Press the “Program” button.
2. OPERATION
2.1. Powering the instrument
Before the instrument is turned on, two AAA size batteries should be placed in the
battery compartment according to the polarity marked on the back panel of the meter.
High-capacity alkaline batteries should be used, i.e. LR03 type. The meter is turned on
with the use of the
button being pressed and held for a while. The welcome screen
with the name of the meter and firmware version are displayed after the instrument is
turned on. The screen will be turned off in about 15 seconds or after any key is pressed.
While the welcome screen is on, with the use of the buttons, the contrast set
menu is selected (see: 2.4.4.1 Contrast).
After the welcome screen is off, the results screen is displayed. It contains:
• VIS channel measured value, expressed in lux,
• UVA channel measured value, expressed in W/m
2
or W/cm2 depending on the user
setting (see: 2.4.4.4 UVA unit),
• battery indicator,
• RUN / PAUSE indicator.
2.2. Battery indicator
The battery indicator is displayed in the top right corner of the results screen:
•
•
• battery discharged,
full battery,
partially discharged battery,
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• battery discharged up to critical level – meter can be turned off automatically at
any time,
• meter power supplied from USB port (see: 3 COMMUNICATION WITH PC).
2.3. Measurement
The measurement is started and paused with the use of the button . The RUN /
PAUSE indicator is displayed in the bottom right corner of the results screen::
•
measurement is paused, last measured values are displayed,
• measurement is running, current measured values are displayed.
The measurement results from both channels are displayed with the units of the
measured quantities. The prefixes of multiplies and sub-multiplies of the units are used
and they are the following ones:
• µ "micro" ×10
• m "mili" ×10
• k "kilo" ×10
• M "mega" ×10
In the case of the measuring range overload, the overload indicator
of the measured value. The overload is signalled when at least one current value of the
one second average is higher than the measurement range. In that case, the average
value can be much lower than the maximum value of the measurement range, but it is
affected by a significant error.
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–3
3
6
,
,
,
.
is displayed in front
2.4. Menu
In order to change the parameters and settings of the meter the hierarchical menu
system is used. The menu structure is organized as follows:
Zeroing
•
Memory
•
Save
••
Load
••
••• Results
Erase
••
Calibration
•
VIS
••
UVA
••
Setup
•
Contrast
••
Autooff
••
Backlight
••
UVA unit
••
••• W/m
••• W/cm
Language
••
••• Polish
••• English
Measuring ranges
•
2
2
The menu is invoked with the use of the
menu navigation. The
button is used to confirm the choice, the button is used
button. The buttons are used for
to move back to the previous level of the menu or cancel the edited value. If the number
of menu items don’t all fit on the screen, the following indicators are displayed to
inform about these invisible positions.
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2.4.1. Zeroing
The option is used for compensation of the dark current of the detectors and
measurement channel offset voltage in order for the meter to indicate “zero” in both
channels when there is no signal in the input window of the probe.
CAUTION: Zeroing can be started only when the measuring probe is covered.
Otherwise, the measurement results will be inaccurate.
2.4.2. Memory
The instrument is equipped with the memory of measurements. Using the memory is
possible from the menu level with the help of the submenus: save, load or erase. Once
you have selected one of the three available options, you can see a list of memory cells.
The list contains the illuminance and irradiance values in the cell, or "none" if the cell is
empty.
The following keys
used to save, load or erase a memory cell. When an empty cell is selected, pressing the
button in the menu “erase” results in deleting the whole memory of the
measurements (this operation requires additional confirmation in the dialogue box
displayed on the screen).
2.4.3. Calibration
This menu enables to check calibration factors and adjust the indicated value by changing
these calibration factors in both channels. After the menu is entered, the calibration
factors for both channels are displayed. The measuring channel should be selected. On
the next screen the current measured value is displayed. This number should be edited to
obtain the proper measured value, using the following buttons
digit value or unit prefix and the button to select the active digit and unit prefix.
After the button is pressed, the old and new calibration factors are displayed. When the
button is pressed once again, the changed calibration factor value is accepted. When
the
menu is displayed again.
key is pressed at any time, the adjustment is cancelled and the main adjustment
are used to select an active memory cell. The button is
to change the
2.4.4. Setup
2.4.4.1. Contrast
In this menu the LCD contrast can be adjusted. The change of contrast is made with the
use of the following buttons . The button is used to turn backlight on
and off during contrast adjustment. The new contrast setting can be accepted with the
help of the
2.4.4.2. Autooff function
This setting enables to save the battery life. When the option is turned on, the
instrument is switched off after the time is set starting from the recent pressing of any
button. The following buttons
auto-off time can be set with the use of the
button.
are used to turn the function on or off. The
buttons to change the value of the
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digit and button to change the active digit when the function is ON. The time is set
in the format: hh:mm:ss (hours, minutes, seconds). The minimal time is 30s. The new
setting can be accepted with the use of the button.
2.4.4.3. Backlight
This menu enables to manage the backlight of the meter. There are three options which
can be changed with the help of the
• On – backlight always “on” (shortest battery life),
• Off – backlight always “off” (maximum battery life),
• Auto – backlight “on” during the set time after the button is pressed (a compromise
buttons:
between the user’s comfort and battery life).
After the position "Auto" is chosen, the time can be set, using the buttons to
change the value of the digit and the button to change the active digit. The time is
set in the format: hh:mm:ss (hours, minutes, seconds). The new setting can be accepted
with the use of the
button.
2.4.4.4. UVA unit
In this menu irradiance units can be changed. Available possibilities:
• W/m
• W/cm
2
,
2
.
The choice is performed with the use of the buttons while the new setting can
be accepted with the aid of the
button.
2.4.4.5. Language
In this menu the language of the menu can be changed.. Available possibilities:
• Polish,
• English.
The choice is made with the use of the buttons and the new setting can be
accepted with the
button. The language is changed “on the fly”, just after selecting a
new one.
2.4.5. Measuring ranges
This menu enables to check the real measuring ranges for both VIS and UVA channels.
These measuring ranges are strictly connected with calibration factors and are a result of
varied sensitivity of used detectors (see: footer 3)) in section 1.4 Technical data).
2.5. Turning off the instrument
To turn off the instrument, the
seconds.
button should be pressed and held for at least 2
2.6. Calibration procedure
The procedure of calibration is the comparison of the measured values with those of a
calibration standard of known accuracy. After calibration is conducted, adjustment can be
made in order to adjust the indication of the instrument to the applied standard value.
Calibration (including adjustment) should be conducted at least once a year.
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The procedure of calibration:
• Place the proper standard on the photometric bench (illuminant A for VIS channel or
365nm monochromatic source for UVA channel).
• Place the measuring probe in the axis of the radiation source.
• Calculate the proper value of illuminance or irradiance, using the standard value and
measured distance between the reception plane of the probe (see: 1.2.1 Measuring
probe) and the source, or measure that value using the reference meter.
• Measure illuminance / irradiance with the use of the NDTM-10 meter.
The procedure of adjustment:
• Enter the menu of the meter and select the “Calibration” option.
• Select the proper channel.
• Enter the previously calculated or measured proper value of the measured quantity and
accept a new calibration factor (see:2.4.3 Calibration).
3. COMMUNICATION WITH PC
The PCE-UV 40A is equipped with the mini USB socket for PC connection. After
the instrument is connected to a PC for the first time, the proper drivers should be
installed by the system. This communication interface can be used to the firmware
update (see: 1.5 Firmware update) or unit control using the dedicated software.
After the USB cable is connected, the meter is turned on automatically and is powered
from the USB port. The meter cannot be turned off with the use of keyboard. The meter is
turned off after the USB cable is disconnected.
4. SAFETY DURING MEASUREMENT
The PCE-UV 40A meter is designed for ultraviolet radiation measurement which
is dangerous for human health. Special care should be taken during measurements, eye
and skin protection should be used to reduce the dose of ultraviolet radiation.
While using the PCE-UV 40A meter for non-destructive testing, it is essential to follow
the recommendations included in section 5 of EN ISO 9934-1 standard.
5. USAGE RECOMMENDATIONS
• It is not recommended for the meter to be exposed to falls, shakes or any other factors
that might cause mechanical damages.
• The meter should be protected from excessive moisture and aggressive chemical agents
that might damage the meter.
• The measuring probe cover should be removed only at the time of the measurement.
• In the case of the dirty measuring probe dome, unscrew the stepped ring, as shown in
the picture below, and clean it with a soft cloth moistened with pure alcohol.
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Fig.3. Access to the measurement probe dome.
• In the case of re-control in any channel, the probe should be removed from the
measuring field or it should be covered with a cap. The detectors will be damaged if they
are exposed to strong radiation for too long.
• The instrument should be stored and transported in the original package.
• In the case of the instrument not being used for a long time, the batteries should be
removed from the instrument.
6. MAINTENANCE AND REPAIRS
The PCE-UV 40A radiometer-photometer does not require any special maintenance
jobs. All repairs of the instrument must be performed by the manufacturer.
7. CE MARKING AND CONFORMANCE TO EU COUNCIL
DIRECTIVES
The product described in this instruction conforms to the following EU Council
Directives:
2004/108/EC Electromagnetic compatibility.
The conformance to above-mentioned requirements is confirmed by CE
mark.
This product cannot be thrown away with household waste. Deposit the
product in an authorized electrical and electronic waste collection area for
recycling. Contact local Municipal Bureau or nearest waste disposal company
to get more detailed information.
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