Hach DR300 User manual

DOC222.53.90639
DR300
Service Manual
02/2019, Edition 2

Table of Contents
Section 1 Specifications.................................................................................................................... 3
Section 2 General information......................................................................................................... 5
2.1 Safety information........................................................................................................................ 5
2.1.1 Use of hazard information................................................................................................... 5
2.1.2 Precautionary labels............................................................................................................ 5
2.1.3 Certification......................................................................................................................... 5
2.2 Product overview.......................................................................................................................... 6
2.3 Product components.................................................................................................................... 6
2.4 Keypad description....................................................................................................................... 7
2.5 Display description....................................................................................................................... 8
Section 3 Startup................................................................................................................................. 9
3.1 Install the batteries....................................................................................................................... 9
3.2 Set the time.................................................................................................................................. 9
3.3 Do a test....................................................................................................................................... 9
3.3.1 Download a test procedure............................................................................................... 11
3.4 Show measurements................................................................................................................. 11
3.5 Install the Bluetooth® Dongle..................................................................................................... 12
Section 4 Inspection......................................................................................................................... 15
4.1 Visual check............................................................................................................................... 15
4.2 Clean the instrument.................................................................................................................. 15
4.3 Clean the cell compartment....................................................................................................... 15
4.4 Replace the batteries................................................................................................................. 16
4.5 Inspection with test filter set, service cable, PC and VAP235 software..................................... 16
4.5.1 Install VAP235 software.................................................................................................... 16
4.5.2 Insert the service cable..................................................................................................... 19
4.5.3 Do an inspection with the test filter set, service cable, PC and VAP235 software............ 21
4.6 Do a service inspection with the test filter set and service mode............................................... 28
4.7 Update the software................................................................................................................... 33
Section 5 Repairs.............................................................................................................................. 35
5.1 Open the instrument................................................................................................................... 35
5.2 Replace the optical unit.............................................................................................................. 37
5.3 Replace the mainboard.............................................................................................................. 42
5.3.1 Set the part number...........................................................................................................43
5.3.2 Set the serial number........................................................................................................ 44
5.4 Replace the display.................................................................................................................... 45
5.5 Replace the keypad................................................................................................................... 47
5.6 Replace the housing.................................................................................................................. 47
5.7 Replace the battery contacts...................................................................................................... 49
Section 6 Troubleshooting..............................................................................................................53
6.1 Get the instrument logger........................................................................................................... 56
6.2 Get the data logger.................................................................................................................... 61
6.3 Set back the instrument to factory settings................................................................................ 62
Section 7 Replacement parts and accessories.......................................................................... 65
Appendix A Certificate of Service Inspection............................................................................ 79
Appendix B Certificate of Service Inspection (manually).......................................................81
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Table of Contents
2

Section 1 Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions (W x H x D) 6.9 x 15.7 x 3.4 cm (2.7 x 6.2 x 1.3 in.)
Enclosure IP67, waterproof at 1 m (3.3 ft) for 30 minutes when battery compartment is closed and locked.
Light source Light emitting diode (LED)
Detector Silicon photodiode
Display LCD with backlight
Weight 0.25 kg (0.55 lb)
Power requirements 4 AAA batteries; approximate life of 5000 tests (use of backlight decreases this number)
Rechargeable batteries are not recommended.
Operating environment 0 to 50 °C (32 to 122 °F), 0 to 90% relative humidity non-condensing
Storage temperature –20 to 55 °C (–4 to 131 °F), 0 to 80% relative humidity non-condensing
Wavelength Fixed wavelength ±2 nm, different for each model
Filter bandwidth 15 nm
Absorbance range 0 to 2.5 Abs
Sample cell 25 mm (10 mL) and 1 cm (10 mL)
Data storage Last 50 measurements
Bluetooth® 1Bluetooth® is on when the optional Hach Communication Dongle is installed.
Certifications CE
Warranty 1 year (EU: 2 years)
1The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any
use of such marks by HACH is under license.
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Specifications
4

Section 2 General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or
consequential damages resulting from any defect or omission in this manual. The
manufacturer reserves the right to make changes in this manual and the products it
describes at any time, without notice or obligation. Revised editions are found on the
manufacturer’s website.
2.1 Safety information
NOTICE
The manufacturer is not responsible for any damages due to misapplication or misuse of this
product including, without limitation, direct, incidental and consequential damages, and disclaims
such damages to the full extent permitted under applicable law. The user is solely responsible to
identify critical application risks and install appropriate mechanisms to protect processes during a
possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment.
Pay attention to all danger and caution statements. Failure to do so could result in serious
injury to the operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or
install this equipment in any manner other than that specified in this manual.
2.1.1 Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death
or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that
requires special emphasis.
2.1.2 Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the
instrument could occur if not observed. A symbol on the instrument is referenced in the
manual with a precautionary statement.
This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal
systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to the user.
2.1.3 Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class B:
5

Supporting test records reside with the manufacturer.
This Class B digital apparatus meets all requirements of the Canadian Interference-
Causing Equipment Regulations.
Cet appareil numérique de classe B répond à toutes les exigences de la réglementation
canadienne sur les équipements provoquant des interférences.
FCC Part 15, Class "B" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of
the FCC Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that
may cause undesired operation.
Changes or modifications to this equipment not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment. This
equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference, in which case the user will be
required to correct the interference at their expense. The following techniques can be
used to reduce interference problems:
1. Move the equipment away from the device receiving the interference.
2. Reposition the receiving antenna for the device receiving the interference.
3. Try combinations of the above.
2.2 Product overview
This instrument is a portable filter photometer used for testing water.
Note: This instrument has not been evaluated to measure chlorine and chloramines in medical
applications in the United States.
2.3 Product components
Make sure that all components have been received. Refer to Figure 1. If any items are
missing or damaged, contact the manufacturer or a sales representative immediately.
Figure 1 is an example and shows the parts supplied with LPV445.99.00110. Other
instruments come with different components.
General information
6

Figure 1 Product components
1 DR300 5 Storage case
2 AAA alkaline batteries 6 Reagents
3 Sample cells, 25 mm (10 mL), glass 7 Hach Communication Dongle (optional, supplied
separately)
4 Sample cells, 1 cm (10 mL), plastic
2.4 Keypad description
Figure 2 shows the keypad and gives the key functions.
Figure 2 Keypad
1 Range key: Selects the measurement range (e.g., LR or
HR).
Push and hold for 3 seconds to enter or exit menu mode.
In menu mode, scrolls up or increases the value of the
selected digit.
4 Backlight key: Sets the backlight to on and off.
In menu mode, scrolls down or decreases the value of the
selected digit.
2 Zero key: Sets the zero value before a measurement.
In menu mode, goes back one menu level or moves the
cursor to the previous digit.
5 Read key: Starts a sample measurement.
In menu mode, selects the menu option shown or moves
the cursor to the next digit.
3 Power key: Sets the power to on and off.
Push and hold for 5 seconds to reset the instrument. The
calibration is not deleted.
General information
7

2.5 Display description
Figure 3 shows the values and icons shown on the display.
Figure 3 Display
1 Numeric display: Measured value or menu options 5 Battery icon: Battery power level. Flashes when the
battery power level is low.
2 Range icon: Points to the selected measurement range 6 Parameter and measurement ranges
3 Measurement ranges or parameters 7 Calibration adjusted icon: The factory default calibration
was adjusted or a user-entered calibration curve was
entered.
4 Bluetooth® icon: Bluetooth® is on2.
2Shows when the Hach Communication Dongle is installed.
General information
8

Section 3 Startup
3.1 Install the batteries
WARNING
Explosion hazard. Incorrect battery installation can cause the release of explosive gases.
Be sure that the batteries are of the same approved chemical type and are inserted in the
correct orientation. Do not mix new and used batteries.
Refer to Figure 4 to install the batteries. Then, push to set the instrument to on.
Figure 4 Install the batteries
1 Coin 3 Plastic insert for dongle3
2 Battery cover
3.2 Set the time
Set the time (24-hour format).
1. Push and hold for 3 seconds to enter menu mode.
The time shows (or 00:00).
2. Push to set the time.
3. Push the or to change the number that flashes. Push to go to the next digit.
Push to go to the previous digit.
3.3 Do a test
DANGER
Chemical or biological hazards. If this instrument is used to monitor a treatment process
and/or chemical feed system for which there are regulatory limits and monitoring
requirements related to public health, public safety, food or beverage manufacture or
processing, it is the responsibility of the user of this instrument to know and abide by any
applicable regulation and to have sufficient and appropriate mechanisms in place for
compliance with applicable regulations in the event of malfunction of the instrument.
3Only remove the plastic insert to install the Hach Communication Dongle. Refer to the installation instructions
supplied with the dongle.
9

DANGER
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Refer to the
current safety data sheets (MSDS/SDS) for safety protocols.
CAUTION
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.
The generic steps to do a test follow.
To do a test for a specific parameter (e.g., chlorine), download the test procedure from
the manufacturer's website. Refer to Download a test procedure on page 11.
1. Push to select the applicable measurement range (e.g., LR or HR).
2. Prepare the blank. Refer to the test procedure.
3. Clean the sample cell with a no-lint cloth.
4. Insert the blank sample cell into the cell holder. Make sure to install the blank sample
cell in the correct and consistent orientation so that the results are more repeatable
and precise. Refer to Figure 5.
5. Install the instrument cap over the cell holder. Refer to Figure 6.
6. Push to set the instrument zero.
7. Remove the blank sample cell.
8. Prepare the sample. Refer to the test procedure.
9. Clean the sample cell with a no-lint cloth.
10. Insert the sample cell into the cell holder. Make sure to install the sample cell in the
correct and consistent orientation so that the results are more repeatable and precise.
Refer to Figure 5.
11. Install the instrument cap over the cell holder. Refer to Figure 6.
12. Push . The display shows the results in concentration units or absorbance.
Note: The result flashes if the result is less or more than the instrument range.
13. Remove the sample cell from the cell holder.
14. Immediately empty and rinse the sample cell. Rinse the sample cell and cap three
times with deionized water (or distilled water).
Note: As an alternative, use tap water to rinse the sample cell if the samples measured have a
higher concentration than the tap water.
Startup
10

Figure 5 Sample cell orientation
1 Orientation mark42 Sample cell, 25-mm (10 mL), glass53 Sample cell, 1-cm (10 mL), plastic6
Figure 6 Install the instrument cap over the cell holder
3.3.1 Download a test procedure
1. Go to http://www.hach.com.
2. Enter "DR300" in the Search box.
3. Select the applicable instrument from the list.
4. Click the Downloads tab.
5. Scroll down to "Methods/Procedures".
6. Click the link for the applicable test procedure to download it.
3.4 Show measurements
Note: The instrument saves a maximum of 50 measurements. After 50 measurements are done,
new measurements replace the oldest measurements.
1. Push and hold for 3 seconds.
2. Push until "rCL" (recall) shows, then push .
4Some variants of the instrument have sample cells without an orientation mark.
5Use the glass sample cell for low-range chlorine tests.
6Use the plastic sample cell for high-range chlorine tests.
Startup
11

"– 01 –" shows. Measurement 01 is the last measurement done.
3. Push to scroll forward.
The measurement number is followed by the measurement value and then the time.
4. To go to a measurement number, push until a measurement number shows, then
push or .
Note: Measurements cannot be deleted.
5. Push and hold for 3 seconds to go back to measurement mode.
3.5 Install the Bluetooth® Dongle
To install the Hach Communication Dongle do the illustrated steps that follows. After
correct installation the display shows the Bluetooth® icon. Refer to Figure 3 on page 8.
Startup
12

Startup
13

Startup
14

Section 4 Inspection
4.1 Visual check
Examine the parts that follow for damage or scratches:
• Housing upper and lower part
• Seal
• Battery cover
• Display window
• Keypad
• Cell compartment
• Springs into the cell compartment
Replace scratched or damaged parts if necessary.
This inspection task is also available as a service video on HSO. HSO full access
requires login credentials. First log into HSO and afterwards click on
https://support.hach.com/app/answers/answer_view/a_id/1024331. Select the desired
service video.
Note: Following hyperlink without being logged will end in a permission denied information
screen.
4.2 Clean the instrument
Clean the exterior of the instrument with a moist cloth and a mild soap solution and then
wipe the instrument dry as necessary.
4.3 Clean the cell compartment
CAUTION
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Refer to the
current safety data sheets (MSDS/SDS) for safety protocols.
Items to collect:
• Distilled water
• Lint-free cloth
• Compressed air (oil free)
Based on the degree of contamination, clean the cell compartment:
• Use air to blow out dust.
• Use a lint-free cloth with a soft surface to wipe out dust and deposits.
• Moisten a lint-free soft cloth with distilled water. Use this damp cloth to wipe out
deposits.
This inspection task is also available as a service video on HSO. HSO full access
requires login credentials. First log into HSO and afterwards click on
https://support.hach.com/app/answers/answer_view/a_id/1024331. Select the desired
service video.
Note: Following hyperlink without being logged will end in a permission denied information
screen.
15

4.4 Replace the batteries
Replace the batteries when the battery power level is low. Refer to Install the batteries
on page 9.
Note: Make sure that the batteries and battery contact points show no leakage damage. If so
replace the battery contacts or the housing. Refer to Replace the battery contacts on page 49 and
Replace the housing on page 47.
4.5 Inspection with test filter set, service cable, PC and VAP235 software
If the device is in a service center or the service technician has a PC and a service cable
(VAA10036.99.G00), the inspection is done with the software VAP235.
• To install the software VAP235, refer to Install VAP235 software on page 16.
• To install the service cable VAA10036.99.G00, refer to Insert the service cable
on page 19.
• To do an inspection, refer to Do an inspection with the test filter set, service cable, PC
and VAP235 software on page 21.
The software VAP235 and the service cable (VAA10036.99.G00) provide additional
functions:
• A software update, refer to Update the software on page 33
• Get the instrument logger, refer to Get the instrument logger on page 56
• Get the data logger, refer to Get the data logger on page 61
• After replacement of the mainboard, set the part number and serial number, refer to
Set the part number on page 43 and Set the serial number on page 44
• Set back to delivery state, refer to Set back the instrument to factory settings
on page 62
If the service technician does not have a PC and service cable in the field, a field service
inspection will be performed. Refer to Do a service inspection with the test filter set and
service mode on page 28. A field service inspection includes the following items:
• Check the key functions
• Check the backlight function
• Measure the absorbance of the test filter set VAA10038.99.V00
• Fill out and sign the certification of service inspection
4.5.1 Install VAP235 software
NOTICE
Open the file "installation_VAP235.pdf" and follow the detailed installation instructions.
The software tool VAP235 is a .NET client program for factory or service inspection of a
DR300 instrument. The software uses the RS232 serial port to communicate with an
instrument. The software will guide the user step by step through the inspection process.
If the test passes, a certificate will be saved as a PDF file on the selected path.
Requirements
• Minimum OS: Windows 7 SP1, .NET 4.7.2 (or higher)
• Minimum monitor resolution: 1280 × 1024
• Minimum Microsoft Excel 2010
• VAA10036.99.G00 Service cable
Inspection
16

Installation
1. If .NET 4.7.2 is required, unzip VAP235_NET_and_driver.zip and run NDP472-
KB405430-x86-x64-AllOS-ENU.exe.
2. If Excel 2010 or newer is not installed, install Excel 2010 or newer.
3. Run VAP235_Vx.x-BLx.xx-UIx.xx-Pxx-Pxx.exe and follow instructions.
Files and templates
After Installation Finalinspection.csv and NominalValues.csv have been installed in the
following directory: C:\ProgramData\VAP235\Files (hidden folder). This directory also
contains templates for labels and certificates. The newest NominalValue.csv file is stored
at https://danaher.sharepoint.com/:f:/r/sites/hch/team/rd/Shared%20Documents/Released
%20Software/Service%20Tools/DR300?csf=1.
Note: Update NominalValues.csv when you received a new or recalibrated test kit.
Firmware
After Installation DR300_BLx.xx_CRCxxxx.bin and DR300_UIx.xx_CRCxxxx.bin have
been installed in the application directory in the folder Update (for example: C:\Program
Files (x86)\VAP235\Update). If you get an updated file, close the program if it is opened
and replace the file right here (remove the old one).
Settings
1. Start VAP235.
2. Select the folder Settings.
3. Select Language and select English, Chinese or German.
4. Select Program settings.
5. Select the folder General. Refer to Figure 7.
6. Enter the "fi result path" and the "Certificate path" where the certificate is stored. If the
paths are not defined during installation, an error message is shown at the first start.
7. Make sure that Enable updates is activated. If enabled, VAP235 checks for new
application and boot updates that are available and necessary.
8. Push Save to save the settings.
9. Select the folder Mode and select Service.
10. At the next start, the software tool VAP235 will start with the selected settings and the
correct mode.
Inspection
17

Figure 7 General settings
Preparation for inspection
1. Install the service cable VAA10036.99.G00 in the DR300. Refer to Insert the service
cable on page 19.
2. Connect the VAA10036.99.G00 to an USB port.
3. Select the correct com port in the drop-down menu near by the Connect button. Refer
to Figure 8. Go to windows device manager and look for USB Serial Port (COMX).
Plug in and out the USB to see which com port the USB has.
4. Push on the DR300.
5. Push Connect.
6. Push Start inspection.
7. Enter the set number of the VAA10038.99.V00. The set number is shown and
automatically used for further inspections.
8. Follow the instructions to complete the first inspection. Refer to Do an inspection with
the test filter set, service cable, PC and VAP235 software on page 21.
Inspection
18