Hach DR2400 User manual

1
59456-88
INSTRUCTION SHEET
DR/2400 Lamp Module Replacement
Replacing the Lamp Module
Turn off the power switch and remove the cell holder. Disconnect the power
supply and the computer/printer cable.
Note: Some
internal
components may
be damaged by static
electricity. Use static
discharge protection.
Removing the Batteries
Place the instrument upside down on a padded surface. Depress the ribbed tab
and slide the battery cover off of the instrument. Remove the batteries.
Figure 1 Removing the Compartment Fasteners
1. Use the T10 L-Key supplied in the Lamp
Replacement Module Kit (Cat. No. 59456-00 or
59648-01) to remove the two Torx fasteners that
secure the battery compartment.
Figure 2 Positioning the Battery Compartment 2. Lift the battery compartment until it just clears the
instrument cabinet. Without twisting or straining
the power ribbon, rest the battery compartment on
the cabinet bottom.
3. Remove the two Torx fasteners that secure the
Lamp Module.
Note: Set the screws aside before removing the module to
eliminate the possibility of dropping the screws into the slot
for the lamp module.
!

DR/2400 Lamp Module Replacement, continued
HACH COMPANY
WORLD HEADQUARTERS
Telephone: [phone]
FAX: [phone]
FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING:
Call 800-227-4224
Contact the HACH office or distributor serving you.
www.hach.com [email protected]
In the U.S.A. –
Outside the U.S.A. –
On the Worldwide Web – ; E-mail –
toll-free
Components
Description Cat. No.
Lamp Module Replacement
Serial Numbers less than 030900002600...................................................................................................... 59456-00
Serial Numbers 030900002600 and higher.................................................................................................. 59648-01
Instruction Sheet............................................................................................................................................. 59456-88
T10 L-Key......................................................................................................................................................... 59117-00
Torx Screws...................................................................................................................................................... 49440-00
Figure 3 Removing the Lamp Module 59456-00
(serial numbers less than 030900002600)
Note: For serial numbers 030900002600 and higher using
Cat. No. 59648-01, proceed to step 8.
4. Grasp the tab and pull the module out of the
recess.
5. Insert the replacement Lamp Module
(Cat. No. 59456-00). Push where indicated by the
arrows to fully seat the module. Ensure that the
lamp module is fully inserted before installing the
screws.
6. Reassemble the battery compartment, and replace
the batteries.
7. Return the instrument to the upright position and
restore power and other cable connections. No
calibration is necessary for the lamp module.
Figure 4 Removing Lamp Module 59648-01
(serial numbers 030900002600 and higher)
8. Grasp the tab and pull the module out of the
recess.
9. Insert the replacement Lamp Module
(Cat. No. 59648-01). Push where indicated by the
arrows to fully seat the module. Ensure that the
lamp module is fully inserted before installing the
screws.
10. Reassemble the battery compartment, and replace
the batteries.
11. Return the instrument to the upright position and
restore power and other cable connections. No
calibration is necessary for the lamp module.
© Hach Company, 2004. All rights reserved. Printed in the U.S.A. te/dk 05/04 2ed