Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 66)

64
Sampler operation
4.9.5.4 Reset tubing cycles
When the “change tube” message is shown, replace the pump
tubing and then reset the pump cycles.
Procedure:
1. If the tubing life option is not enabled, select
SYSTEM SETUP > TUBING LIFE > ENABLE > RESET CYCLES . If the
tubing life option is enabled, select
SYSTEM SETUP > TUBING LIFE > RESET CYCLES .
2. Select YES to reset the pump cycle count to 0. Press ENTER to
view the status screen to verify that the cycle count is set to 0.
Note: It is important to reset the pump cycles so that the change tube
message will be shown at the correct time for the new tube.
4.9.6 Pump duty cycle
The pump runs at a default duty cycle of 100%. The pump can be
configured to run at a duty cycle of less than 100%.
To set the pump duty cycle:
Select SYSTEM SETUP>PUMP DUTY CYCLE from the Main
Menu.
Enter a number between 75 and 100 and press ENTER.