User Manual

10 VPC300-en-GB_v1.9 5/18
SAMPLE MODE
Select desired mode ( Cumulative, Differential, or Concentration). From the Particle
setup menu, use the Up and Down arrows to select Sample Mode. Press the Enter ( ) button
to enter the option. Use the arrow buttons to select desired mode and then use ESC to save
and to return to the menu.
Cumulative Mode – measures all particles that are greater than or equal to the particle size
selected in the Sample Volume field.
Differential Mode – measures all particles that are greater than or equal to the particle size
selected in the Sample Volume field, but less than the next largest particle size.
Concentration Mode – used to take a quick sample of airborne particulates, performed
especially in areas where the particulate levels are unknown and may exceed the operating
levels of this counter.
INTERVAL (TIME BETWEEN REPEATED TEST CYCLES)
Set the time between tests for tests with more than one cycle (1 to 100 seconds). From the
Particle setup menu, use the Up and Down arrows to select Interval Time. Press the Enter ( )
button to enter the option and Press Enter again to activate the setting for editing. Use the
arrow buttons to set the desired interval time. Use the ESC button to save setting and to
return to the menu. Note: The INTERVAL setting is only for programming the time between
test cycles, not between individual measurements.