Hach DR/700 Procedures Manual page 659

Module 69.01
Hach warrants equipment it manufactures against defective materials or
workmanship for at least one year from the shipping date. Warranties do
not apply to limited-life electrical components such as batteries. Full
warranty information is located on the reverse side of Hach invoices.
A lamp intensity adjustment must be performed:
•Before first or initial use
•When new filter modules are installed
•On each filter module when the lamp is replaced
Refer to Lamp Intensity Adjustment in the instrument manual.
690 nm
IMPORTANT NOTICE