Hach DR300, Service Manual

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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
N O T I C E
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
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