Hach DR300 Service Manual

• Krytox oil (item no. 16004801)
Step Description Picture
1 Open the instrument, refer to Open the instrument on page 35.
2 Install in a new bottom housing new battery contacts.
Note: Push down the battery contact springs with blade of a screw
driver.
Note: First stick the contacts to the slot in the plastic part. Make sure
that the contacts are placed in correct direction. Push in the battery
contacts. The battery contacts click in the correct position.
3
• Stick the foam load disk (self-adhesive) on the marked
area in the bottom housing.
• Stick the type label of the instrument, including part
numer and serial number to the outside of the bottom
housing.
Repairs
48

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