D-2 Incorporated JF-WA1 User manual

JF-WA1 HYDRO-LIGHT SENSOR
480-003
August 22
1
D-2 INCORPORATED
HYDRO- LIGHT
WATER PAD READER
JF-WA1
OPERATION MANUAL
REVISION 8.0
P/N 480-003
Revision History:
Rev
Date
Description
1
28JAN08
Written
AJF
2
16JUN11
undefined
AJF
3
09SEP11
Revised for format and content
AJF
4
05APR12
Include USB Power Option
AJF
5
02MAY14
Fix Appendix B, change company address
SWS
6
11NOV19
Change of Address
DLF
7
08APR20
Emphasize the use of provided power supply
SWS
8
29MAR21
Alter Email Address, RMA Verbiage
DLF
9
29AUG22
Update due to new shuttle targets and Calibration routines
SWS

JF-WA1 HYDRO-LIGHT SENSOR
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This manual covers the operational aspects of the D-2 JF-WA1 Hydro- Light Sensor. D-2
continuously strives to meet the full expectations of our customers and we welcome
comments on the structure, content and the ability of this manual to answer your
questions regarding our product. If you have any suggestions or comments, please
contact us at [email protected]. This document is provided with the understanding
that future versions of this instrument may have additional commands, and the function
of the commands shown in this document may vary from the present operation.
TABLE OF CONTENTS
Notes for User: .......................................................................................................................... 3
1.0 GENERAL DESCRIPTION.................................................................................................... 5
2.0 SPECIFICATIONS ................................................................................................................. 6
3.0 USAGE..................................................................................................................................... 6
4.0 THEORY OF OPERATION.................................................................................................... 7
Figure 1.....................................................................................................................................................8
5.0 OPERATION INSTRUCTIONS............................................................................................. 9
Figure 2...................................................................................................................................................10
Figure 3...................................................................................................................................................10
Figure 4...................................................................................................................................................10
6.0 FIELD VERIFICATION PROCEDURE............................................................................. 11
7.0 USB SERIAL DATA INTERFACE...................................................................................... 11
7.1 Port Settings.....................................................................................................................................12
7.2 Command Structure........................................................................................................................12
7.3 Continuous Data..............................................................................................................................13
7.4 Configuration/Calibration Constants............................................................................................13
7.5 Calibration Mode ............................................................................................................................13
8.0 CALIBRATION ..................................................................................................................... 13
8.1 Calibration Interval ........................................................................................................................13
8.2 Verification Tests.............................................................................................................................13
9.0 MAINTENANCE................................................................................................................... 14
APPENDIX A: LIMITED WARRANTY.................................................................................... 14
APPENDIX B: Serial Port Command List................................................................................. 16

JF-WA1 HYDRO-LIGHT SENSOR
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Notes for User:
WARNING!
There is a danger to life and limb or a risk of serious injur y if the notes on
safety are disregarded!
CAUTION!
There is a risk of injur y and damage to property if the notes on safety are
disregarded!
ATTENTION!
There is a risk of damage to property if the notes on safety are
disr egarded!
! IMPOR T ANT
Notes on working procedures.

JF-WA1 HYDRO-LIGHT SENSOR
480-003
August 22
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Read the instructions in this manual carefully before installing or starting the system.
Note throughout this manual the term JF-WA1 applies to all models of the instrument,
unless specific individual model numbers are detailed.
D-2 Incorporated will accept no liability for damages due to non-observance of this
manual.
ATTENTION!
If the instructions in the operating manual are not adhered to or are
inadequately adhered to, there shall be no entitlement to services
under the warranty.
Information in this manual is subject to change without notice and does not represent a
commitment on the part of D-2 Incorporated.
No part of this manual may be reproduced or transmitted in any form or by any means,
electronic or mechanical, without the prior written permission of D-2 Incorporated.
Where manuals are written in several languages, the text it was created in is considered
the original.
D-2 Incorporated
6 Otis Park Drive
Bourne, MA USA 02532
Phone: [phone]
Telefax: 01 508-536-5206
E-Mail: [email protected]
Internet: http://www.D-2.com
© Copyright 2014, D-2 Incorporated, Bourne, MA, USA

JF-WA1 HYDRO-LIGHT SENSOR
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1.0 GENERAL DESCRIPTION
The JF-WA1 Hydro- Light Sensor incorporates innovative optics and electronics
which use Digital Signal Processing (DSP) techniques to accurately determine the
fluorescence of water detector test pads in accordance with ASTM D3240. The
instrument will measure 1.0” test pads with free water in the range of 0 – 50 parts per
million (PPM), although it is optimized and normally used in the 0 to 35 PPM range.
The sensor displays the calculated value on the 2-line 2.25” x 0.90” Liquid Crystal
Display (LDC), and also offers a USB data output.
Although absolute calibration relies only on the sensor’s optical geometry, which
is very stable by design, the Hydro- Light Sensor continuously monitors internal
electronic circuits to guarantee calibration to be a maximum of a five year period.
Ambient Operating temperatures are compensated through the use of a built-in
temperature sensor and all calibration terms are stored in internal, non-volatile
memory. D-2 Inc. also provides reference pad shuttle to verify readings between
calibrations.
These attributes make the JF-WA1 very reliable and easy to use.

JF-WA1 HYDRO-LIGHT SENSOR
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2.0 SPECIFICATIONS
Table 2
SENSOR SPECIFICATIONS
Parameter
Free Water
Range
0 –50 PPM
Accuracy
+/- 0.5 PPM (+/- 2%) of Reading
Resolution
0.1 PPM
Sensor Type
Optical LED Driven
Calibration
Internal Zero & Scale
Table 3
SYSTEM SPECIFICATIONS
ELEMENT
SPECIFICATION
Environmental
15 to 35 °C Operation
-10 to 60 °C Storage
Power
9.0 VDC ± 0.3 VDC,
Use Supplied Power Supply Only
USB Power*
Option via USB Cable
Certification ASTM
D3240
Certification Sensor
CE
* Consult Factory for USB Power Option Input
3.0 USAGE
The use of the Hydro- Light to determine the free water content of fuel products,
such as jet aviation and diesel fuels, should be conducted in accordance with ASTM’s
D3240 method.
A water detector test pad that has been properly prepared with a fuel sample
(method D3240) is placed into a JF-WA1 shuttle and then placed into the Hydro- Light .
The Hydro- Light calculates the free water content in parts per million (PPM), then
displays the digital value on the top line of the LCD readout.
The bottom line of the LCD is used for displaying pertinent information. It
toggles between the firmware revision, the last calibration (month/year) and the
measurement mode.

JF-WA1 HYDRO-LIGHT SENSOR
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The measurement mode of the JF-WA1 can be set to either “Mode A” or “Mode
D”. The Hydro-Light can apply the ASTM D6708 Bias found between the existing
method sensor and the original Aqua-Glo®Instrument. The Bias was found to be
Hydro-Light Reading = Aqua-Glo®Reading * 1.22. This bias correction can be made by
the Hydro-Light. If the lower display indicates “Mode A” then the correction factor has
been applied internally in the Hydro-Light and the readings are equivalent to the
present ASTM D3240 method (in other words the unit reads the same as an Aqua-
Glo®). If the low information line indicates “Mode D” then the Hydro-Light reads in the
original D-2 Incorporated Calibration and values from the unit must be divided by 1.22
to equal the current ASTM D3240 Method. Units are shipped in “Mode A” for user
convenience.
4.0 THEORY OF OPERATION
The D-2 JF-WA1 Hydro- Light Sensor uses Light Emitting Diodes (LED’s) to
illuminate the water detector test pad, while it is inside the sensor chamber. The high-
performance detector receives the fluorescent light reflected back from the pad. The
instrument measures the amount of light received back to determine the concentration
of free water which came in contact with the pad as a result of its exposure to the fuel
sample. The display reads directly in PPM, and is scaled to the standard size 500 ml
fuel sample as outlined in ASTM D3240. If an alternate amount of fuel is sampled
through the pad the displayed number need only to be scaled by the ratio of the
amount of fuel sampled to the standard 500 ml sample size.

JF-WA1 HYDRO-LIGHT SENSOR
480-003
August 22
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Figure 1
Major System Components
4.2"
AN ISO 9001:2000
CERTIFIED COMPANY
D-2 INCORPORATED
19 COMM ERCE PARK ROAD
1.2 PPM
POCASSET, MA U.S.A. 02559
WWW.D-2INC.COM
508-329-2046
4.2"
JF-WA1
HYDRO-LIGHT
4.4"
1. On-Off Switch
2. Wall Power Adaptor
3. USB Port
4. Display (LCD)
5. Pad Shuttle

JF-WA1 HYDRO-LIGHT SENSOR
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5.0 OPERATION INSTRUCTIONS
Step-by-Step Operation Procedure
1. Connect Hydro-Light power supply to power input on the rear panel of the unit (Figure 1) and plug into 90
–340 VAC 50/60 Hertz outlet. (Or USB Cable with USB Power Option Consult Factory)
2. Turn the Hydro-Light unit on with switch at the top of the chassis (Figure 1). The display will illuminate.
After 5 seconds, the top line of the display will show the text “Hydro-Light”. Allow the instrument to
acquiesce to room temperature once power is supplied. We recommend a warmup period of at least 10
minutes. The Hydro-Light unit is now ready to use. The lower display will indicate the next factory
calibration date.
3. If there is no pad present, the display should read “0 PPM”.
4. Remove the shuttle from the front drawer of the unit (see Figure 2).
5. Press down on the tab to open the shuttle cover (see Figure 3).
6. Using tweezers, insert the pad into the shuttle (see Figure 4). Ensure that the pad is centered in the recess
of the shuttle.
7. Let the cover close to hold the pad in place.
8. Re-insert the shuttle into the Hydro-Light drawer.
9. Allow 5 seconds for the Hydro-Light unit to fully update the pad reading after insertion. The display
number will momentarily flash each time an update occurs and the lower line will change displayed
information.
10. Your Hydro-Light will now display the PPM free water content of your 500ml sample
1
.
11. The Hydro-Light reads directly if the sample volume is 500ml. Correct the reading for other sample sizes
by multiplying the displayed reading by (500/Sample size in milliliters).
12. Remove the shuttle, then remove the test pad from the shuttle and discard the test pad.
13. With the use of specially developed polymer Verification shuttle targets, factory recalibration can be as
large as a five-year period. To verify calibration in the field, use the verification shuttle to ensure the
readings are within the specified limits. If ever the Verification shuttle does not meet the printed
specifications, contact D-2 Inc.
1
Note: The Hydro-Light can apply the ASTM D6708 Bias found between the existing method sensor and the
original Aqua-Glo®Instrument. The Bias was found to be Hydro-Light Reading = Aqua-Glo®Reading * 1.22.
This bias correction can be made by the Hydro-Light. If the lower display indicates “Mode A” then the correction
factor has been applied internally in the Hydro-Light and the readings are equivalent to the present ASTM D3240
method (in other words the unit reads the same as an Aqua-Glo®). If the low information line indicates “Mode D”
then the Hydro-Light reads in the original D-2 Incorporated Calibration and values from the unit must be divided by
1.22 to equal the current ASTM D3240 Method. Units are shipped in “Mode A” for user convenience.

JF-WA1 HYDRO-LIGHT SENSOR
480-003
August 22
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Figure 2
Figure 3
Figure 4