When does the DQ3 Purification pack need to be replaced and what are the instructions to replace it?

Document ID

Document ID TE5229

Published Date

Published Date 27/05/2017
Question
When does the DQ3 Purification pack need to be replaced and what are the instructions to replace it?
Summary
Instructions for Purification pack replacment on Millipore® Direct-Q® 3 Ultrapure Water System.
Answer
Attached are the instructions for replacement. The top section provides information on when the purification pack should be replaced.
1. When the Pack Alarm Icon is blinking:
2. When the system resistivity display is blinking. The Product resistivity is below the Resistivity Setpoint set in menu option C02.The system may have been in STANDBY mode for a while. Start a manual recirculation to recirculate the water in the system. If the Pack Alarm icon is still displayed, then replace the Pack.
3. After a system or tank sanitization.
photos included in the attachment.
Attachments