Environmental Express AutoBlock Plus - Manual (Page 13)

Environmental Express, Inc.
www.envexp.com 13
3.3 Pump Calibration Tab
3.3.1 To calibrate the pump, inject 30mL of deionized water, using the manual screen (see Section
5.1), into a pre-weighed digestion vessel. Use Port 1 to calibrate Pump 1 and use Port 6 to calibrate
Pump 2.
3.3.2 After injection, click the “Initialize” button to return the probe and racks to their home
positions.
3.3.3 Weigh the vessel a second time and subtract the original weight to obtain the volume of
deionized water injected.
3.3.4 Enter the actual injection volume in the appropriate field and press either the “Pump 1 Save
Cal” or “Pump 2 Save Cal” buttons, depending on which pump was calibrated.
3.3.5 Perform the pump calibration on both pumps at least once every 30 days.