dymax ACCU-CAL 160 User manual

ACCU-CAL™ 160 User Guide
Radiometer for UVA & LED
■Instructions for Safe Use
■Setup and Operation
■Maintenance
■Ordering Spare Parts and Accessories

ACCU-CAL™ 160 Radiometer User Guide
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About Dymax
UV/Visible light-curable adhesives. Systems for light curing, fluid dispensing, and fluid packaging.
Dymax manufactures industrial adhesives, light-curable adhesives, epoxy resins, cyanoacrylates, and activator-cured
adhesives. We also manufacture a complete line of manual fluid dispensing systems, automatic fluid dispensing systems,
and light-curing systems. Light-curing systems include LED light sources, spot, flood, and conveyor systems designed for
compatibility and high performance with Dymax adhesives.
Dymax adhesives and light-curing systems optimize the speed of automated assembly, allow for 100% in-line inspection,
and increase throughput. System designs enable stand-alone configuration or integration into your existing assembly line.
Please note that most dispensing and curing system applications are unique. Dymax does not warrant the fitness of the
product for the intended application. Any warranty applicable to the product, its application, and use is strictly limited to
that contained in the Dymax standard Conditions of Sale. Dymax recommends that any intended application be evaluated
and tested by the user to insure that desired performance criteria are satisfied. Dymax is willing to assist users in their
performance testing and evaluation by offering equipment trial rental and leasing programs to assist in such testing and
evaluations.

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Contents
Contents.............................................................................................................................. 3
Introduction ........................................................................................................................ 4
Introduction to the User Guide ................................................................................................. 4
Intended Audience .............................................................................................................. 4
Where to Get Help..................................................................................................................... 4
Safety.................................................................................................................................. 4
Product Overview................................................................................................................ 5
Description of the ACCU-CAL™ 160 Radiometer ....................................................................... 5
Environmental Considerations .................................................................................................. 6
Setup & Operation .............................................................................................................. 6
Controls ..................................................................................................................................... 6
Setup Menu ............................................................................................................................... 8
Perform a Measurement ......................................................................................................... 10
Perform a Reference Measurement .................................................................................. 12
USB Interface .................................................................................................................... 13
Data Transfer ........................................................................................................................... 13
Software Setup & Usage .................................................................................................... 13
Power Supply........................................................................................................................... 15
Maintenance ..................................................................................................................... 16
Cleaning ................................................................................................................................... 16
Maintenance/ Calibration........................................................................................................ 16
Specifications .................................................................................................................... 17
Warranty........................................................................................................................... 18

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Introduction
Introduction to the User Guide
This guide describes how to set up, use, and maintain the ACCU-CAL™ 160 radiometer safely
and efficiently.
Intended Audience
Dymax prepared this user guide for experienced process engineers, technicians, and
manufacturing personnel. If you are new to light-curing equipment and do not understand the
instructions, contact Dymax Application Engineering for answers to your questions before
using the equipment.
Where to Get Help
Dymax Customer Support and Application Engineering teams are available in the United States,
Monday through Friday, from 8:00 a.m. to 5:30 p.m. Eastern Standard Time. You can also email
on the back cover of this user guide.
Additional resources are available to ensure a trouble-free experience with our products:
Detailed product information on www.dymax.com
Dymax adhesive Product Data Sheets (PDS) on our website
Material Safety Data Sheets (MSDS) provided with shipments of Dymax adhesives
Safety
The ACCU-CAL™ 160 radiometer is designed to be used in conjunction with Dymax light-curing
equipment that is properly set up, with components correctly connected, and operated in
accordance with relevant instructions. For eye protection when working with light-curing
sources, use the provided goggles or a face shield that’s been approved for UV protection. Use
of long-sleeved shirts or lab coats are recommended to protect the arms and use of UV-opaque
gloves are recommended to protect the hands.

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We encourage you to read, understand, and follow all safety and operating instructions and
recommendations in this and other related manuals prior to setting up and operating this
instrument and any associated UV light-curing systems.
WARNING! The device should only be used for its intended purpose and
according to its technical specifications. Any other use of the device is not
allowed.
Always wear protective goggles or a face shield when working near any unit
which emits UV light!
The device should be inspected before startup for any mechanical damage or
loose parts. In such cases, the device should never be used. Safety can be
compromised if the device is not functioning properly.
Product Overview
Description of the ACCU-CAL™ 160 Radiometer
The ACCU-CAL™ 160 radiometer measures and displays irradiance (intensity), irradiance
profiles (irradiance over measurement time), and dose (irradiance for a given time period) of a
light-curing system. Its compact size and design withstands the extremes of light-curing
environments while providing accurate measurements.
The unit can be controlled manually via four buttons on the faceplate. Measurement data is
displayed on the integrated LCD display screen and can be downloaded to a computer via the
USB port and supplied interface cable. The calibration data of the optical quantities is stored in
the device and automatically considered. The ACCU-CAL™ 160 has a built-in lithium polymer
battery that can be charged using the USB interface.
The ACCU-CAL™ 160 radiometer and data logger contains a photodiode and several filters for
specific spectral sensitivities. The spectral sensitivity should be chosen to fit your measurement
application. Several options are available upon purchase.
The input optics is made from a translucent diffuser material with approximated cosine field of
view.

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The device’s internal temperature during calibration and measurement is recorded. With this
information, the temperature dependency is automatically corrected within the device.
Environmental Considerations
Radiometers are sensitive to extremes in environmental conditions like high temperature,
humidity, and contamination. Protect the device and its detector(s) from high humidity, high
temperature, direct sunlight, and contamination.
■Do not use the ACCU-CAL™ 160 immediately after moving it from a cold to a warm
environment. Under certain circumstances, condensation could arise and negatively
impact the electrical and optical functions. Allow the radiometer to adjust to the
temperature of the surroundings before switching it on.
■Do not use the ACCU-CAL™ 160 in powerful magnetic, electromagnetic, and electrostatic
fields. These disturbances may influence measurement results.
■Do not expose the ACCU-CAL™ 160 to temperatures exceeding 60°C (140°F) during an
exposure run. Exposure to temperatures exceeding 80°C will cause unit failure and will
void the warranty.
Setup & Operation
Controls
Turning on the radiometer: Press and hold the On/Off Button until the Display Window
illuminates. The Display Window will briefly show the radiometer model name, serial number,
software version, date of calibration, range, and wavelength band installed. Continuing to
press the On/Off Button at startup will display the startup information until the button is
released. The Display Window will then enter the default mode and show the data from the
last run before the unit was turned off.
Turning off the radiometer: Press and hold the On/Off Button for approximately two seconds.
The Display Window will indicate that the unit is shutting down and eventually turn off.
Turn backlight illumination on/off: Quickly press the On/Off Button.

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Figure 1. ACCU-CAL™ 160 Radiometer Face Plate
Display Window
Continuously displays the internal temperature
of the device (top left), as well as the battery
level (top right) in all menu mode screens.
The real time clock is set to UTC
(Universal Time, Coordinated)
values.
Soft Button Operation
Right, Left, and Middle Buttons
perform the function indicated on
the Display Window’s bottom
line.
ON/OFF Button
To turn on, press & hold until the
screen is illuminated.
To turn off, press & hold for 2 seconds.
Backlight Illumination
Press the On/Off button to turn the
backlight on the display window on or off.
USB PC Connector
(side of unit)

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Setup Menu
To enter the setup menu, switch the device on and wait for the welcome screen (Figure 2) to
disappear. The graph mode or text mode screen will appear. Press the button in the middle to
enter the setup (Figure 3).
Figure 2. Welcome Screen
Figure 3. Text Mode Screen - Push the Middle Button to Enter Setup
Once on the setup screen (Figure 4), you can toggle the units for irradiance and dose (per m² or
per cm²), the temperature scale (°C or °F), the sample rate (low (25 Hz), or high (2,500 Hz)) the
lamp type of your application for spectral correction (press the right button several times to
select your lamp type. If your specific lamp model is not listed, select “unknown”).

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To navigate through the setup menu, press the left button to move the highlighted selection
up and the middle button to move the highlighted selection down. The right button is used to
select the highlighted menu item.
Figure 4. Setup Menu
In the setup menu, you can also start a reference measurement and display the device info;
i.e., wavelength band, serial number, firmware version, date/time, next calibration date,
internal temperature.
All settings are automatically saved to the device and are readily available upon device startup.
To exit setup, move the arrow to the bottom-most item and press the right button.

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Perform a Measurement
To perform a measurement, press the right button when the text mode (Figure 5) or graph
mode (Figure 6) screen is shown.
Figure 5. Text Mode Screen
Figure 6. Graph Mode Screen
A message “Start Measurement” is shown (Figure 7). To start the measurement, press the right
button. If you have gotten to this screen by mistake and need to cancel the operation, press
the left button.
Place the radiometer on the belt or object with the Optic Window (Figure 8) facing toward the
light source. (The display window and buttons will be facing away from the source).

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CAUTION: Exposing the display window to high UV radiation will damage the display.
Figure 7. Start Measurement Screen
Figure 8. Optics Window (Located on the Backside of the Radiometer)
When the radiometer exits the curing chamber, the measurement sequence will still be
running. To end the sequence, press the right button.
The measurement is stopped when the device memory is full, and a warning message is shown
if this is the case. The low sample rate corresponds to approximately 1,300 seconds of
measurement time, the high sample rate to approximately 13 seconds.

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Once the unit has stopped taking measurements, the results are shown on the front display. If
the device was in the text mode (Figure 5), the dose and peak irradiance are shown, along with
the corresponding values of a reference measurement and the deviation to the reference. If
the device was in the graph mode (Figure 6), the irradiance profile and peak irradiance are
shown. To toggle between text and graph mode, press the left button. You may toggle
between the two modes without any loss of data.
The measurement data is stored in the device and shown on the display until a new
measurement is performed.
Perform a Reference Measurement
A reference measurement is a stored reading used to compare subsequent data readings to
identify if any changes have occurred. To perform a reference measurement, enter the setup,
move the arrow to the item “Start Reference Measurement”, and press the right button. A
message “Start Reference Measurement” is shown. All further steps are similar to the normal
measurement and described in the previous section.
After the reference measurement, you can either save or discard the recorded values as
reference.
Figure 9. Setup Menu

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USB Interface
The device uses a USB interface for remote operation, data transfer, and charging of the built-
in lithium polymer battery. The USB receptacle is Mini-B.
Figure 10. USB PC Connector
Data Transfer
Measurement data can be transferred to a computer via the USB remote interface. The
software tool “S-Accu-Cal 160” is provided with each order on a USB drive. It reads the data
from the device and displays the peak irradiance, dose, irradiance, and temperature profile.
The data can be saved as a text file and the graph can be saved as a png file. The download kit
can be easily imported into Microsoft Excel.
Software Setup & Usage
To install the software, first plug the USB drive included with your order into a USB port on
your computer.
On the USB drive, open the “S-Accu-Cal 160” folder and locate the “setup.exe” file. Select the
“setup.exe” file and hit the run button to launch the installation wizard. Follow the instructions
in the wizard to complete the software installation.
Once the software is installed on your computer, connect your radiometer to the computer.
Open the program by selecting the S-Accu-Cal 160 software icon on your desktop.
USB PC Connector
(side of unit)

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When the software is first opened it, a blank startup screen will display (Figure 11). Press the
“reinitialize/change device” button in the upper right corner. This will pull the radiometers
serial number and type into the boxes in the upper right corner. It will also open up the data
import/export options on the left.
To bring the data saved in your radiometer into the software, select the “read data from
device” or “save data to file” button.
■Read Data from Device: Downloads the last reading
■Save Data to File: Downloads all the data points and puts them into an excel file
Once an option has been selected, the data will be graphed on the screen. The black line
represents irradiance, while the red line represents temperature. The screen navigation icons
can be used to zoom in or out on specific parts of the graph. Users also have the option to save
the graph as a .png file by selecting the “save graph as png” button in the data import/export
buttons.
Users have the option to set a reference point using the “set RTC” button. The reference point
would be the value achieved when the process is working perfectly. The software would then
compare the measured values against the reference point to see how much variance there is in
the process.

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Figure 11. Start Up Screen
Power Supply
The power supply for charging of the built-in lithium polymer battery is connected via the USB
interface. Plugging in a USB cable for charging of the battery is only permitted for
temperatures above 0°C (32°F). For charging the battery, a computer or, as an alternative, a
standard USB power supply (rated voltage: 5VDC) can be used. Please use the provided USB
cable or a high-quality replacement with a sufficient cross-section of the wires otherwise
charging might be impaired due to too high voltage drops along the cable length.
Reinitialize/Change
Device Button
Serial Number &
Type (UVA or LED)
Data Import/
Export Buttons
Screen Navigation
Icons
Set Reference Point

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Maintenance
Cleaning
CAUTION! While cleaning, ensure the cleaning agent does not penetrate into the device. This
can lead to short-circuiting or device operation errors.
Do not use abrasive cleaning agents to clean this device. Off-the-shelf, non-abrasive cleaning
agents or isopropanol can be used to clean the metallic surface of the device. Do not use
acetone as this might damage the display.
The input optics (diffusor) can be cleaned using a clean, soft, and lint-free optical cloth soaked
in isopropanol. Avoid getting fingerprints on the input optics. Fingerprints must be removed
before using the device. While cleaning, be sure to not damage or scratch the input optics.
Damage or scratches can cause the device to malfunction.
Maintenance/ Calibration
The ACCU-CAL™ 160 is calibrated prior to shipment with standards traceable to national and
international standards. The calibration of the device is confirmed by the supplied calibration
certificate.
This radiometer should be calibrated annually to ensure proper operation and readings. Only
trained and authorized persons are permitted to open and repair the device. Opening the
device on the input-optics side voids the calibration. Contact Dymax for calibration assistance.

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Specifications
Property
Specification
Part Numbers
41590 UVA Model
41585 LED Model
Data Display
Graphical LCD with backlight, 128 x 64 px
Wavelength Range
328 nm –382 nm (UVA Model)
350 nm –460 nm (LED Model)
Cosine Error f2
<10% typical
Measurement Ranges
1.0 mW/cm2to 10 W/cm2
Temperature Sensor Range
-55°C to 125°C (-67°F to 257°F)
Internal Temperature Range
Operating and Storage
-10°C to 60°C (14°F to 140°F)
(exposure to temperatures above 80°C/176°F voids the
warranty)
Power Supply
via USB interface (Mini-B), 5 VDC, 500 mA
Lithium polymer battery, charged via USB interface
Typical Battery Life
10 hours (backlight on, no operation)
6 hours (backlight on, full operation)
longer battery life with backlight off (backlight is switched
off automatically during measurements)
Microprocessor
16 bit, 25 ns/400 ns instruction cycle time
Analog-Digital-Converter
16 bit SAR
Dimensions (D x H)
4.63" x 0.5" (117.6 mm x 12.7 mm)
Integral Sensors
1

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Warranty
From date of purchase, Dymax Corporation offers a one-year warranty against defects in
material and workmanship on all system components with proof of purchase and purchase
date. Unauthorized repair, modification, or improper use of equipment may void your
warranty benefits. The use of aftermarket replacement parts not supplied or approved by
Dymax Corporation, will void any effective warranties and may result in damage to the
equipment.
IMPORTANT NOTE:
DYMAX CORPORATION RESERVES THE RIGHT TO INVALIDATE ANY
WARRANTIES, EXPRESSED OR IMPLIED, DUE TO ANY REPAIRS PERFORMED OR ATTEMPTED ON
DYMAX EQUIPMENT WITHOUT WRITTEN AUTHORIZATION FROM DYMAX. THOSE CORRECTIVE
ACTIONS LISTED ABOVE ARE LIMITED TO THIS AUTHORIZATION.

© 2015-2017 Dymax Corporation. All rights reserved. All trademarks in this guide, except where noted, are the property of, or used under license by Dymax Corporation, U.S.A.
Please note that most curing system applications are unique. Dymax does not warrant the fitness of the product for the intended application. Any warranty applicable to the product, its
application and use is strictly limited to that contained in Dymax standard Conditions of Sale published on our website. Dymax recommends that any intended application be evaluated and
tested by the user to ensure that desired performance criteria are satisfied. Dymax is willing to assist users in their performance testing and evaluation by offering equipment trial rental and
leasing programs to assist in such testing and evaluations. MAN073DA PN 41861 6/2/2017
Dymax Corporation
860.482.1010
info@dymax.com
www.dymax.com
Dymax Oligomers &Coatings
860.626.7006
info_oc@dymax.com
www.dymax-oc.com
Dymax Europe GmbH
+49 (0) 611.962.7900
info_de@dymax.com
www.dymax.de
Dymax Engineering
Adhesives Ireland Ltd.
+353.21.237.3016
info_ie@dymax.com
www.dymax.ie
Dymax UV Adhesives &
Equipment (Shenzhen) Co Ltd
+86.755.83485759
dymaxasia@dymax.com
www.dymax.com.cn
Dymax UV Adhesives &
Equipment (Shanghai) Co Ltd
+86.21.37285759
dymaxasia@dymax.com
www.dymax.com.cn
Dymax Asia (H.K.) Limited
+852.2460.7038
dymaxasia@dymax.com
www.dymax.com.cn
Dymax Korea LLC
+82.2.784.3434
info_kr@dymax.com
www.dymax.com/kr
Dymax Asia Pacific Pte. Ltd.
+65.6752.2887
info_ap@dymax.com
www.dymax-ap.com
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