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.
3
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
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