Hach DR300 Service Manual

Step Description Picture
3 Note from the VAA10038.99.V00 Filter set on the
Certificate of Service Inspection for each filter:
• Wavelength
• Nominal value
• Minimum value
• Maximum value
Make sure to note the correct wavelength of the
DR300 type. Refer to Set the part number
on page 43.
4
To start the service mode push and hold , then push
at the same time.
5
Keep pushing and release . Examine the display,
all segments must be shown. Release the key.
6 For a short time the firmware version is shown. Note
the firmware on the Certificate of Service Inspection.
7 The instrument starts the absorbance modus, the
display shows AbS.
Inspection
29

Hach DR300 Specifications

General

Type	Portable Spectrophotometer
Operating Temperature	0 to 50 °C
Method	Pre-programmed methods
Light Source	LED
Wavelength Accuracy	±2 nm
Resolution	0.001 Abs
Display	LCD
Measurement Method	Absorbance
Parameter	Various
Photometric Range	0 to 2.5 A
Dimensions	230 x 93 x 280 mm (9.1 x 3.7 x 11.0 in)
Photometric Accuracy	±0.005 Abs