15
Calibrating and Sampling in Constant Flow Mode —
Single Sorbent Tube
Calibration
Before use, allow the pump to equilibrate after moving it from one temperature
extreme to another.
1. Ensure the pump has run for five minutes before proceeding with calibration.
2. Set the pump for Constant Flow mode (
see pages 12 and 13
).
3. Using a length of tubing, connect the pump inlet to a representative sorbent tube
using an SKC tube holder.
4. Connect the exposed end of the tube to a primary standard calibrator using another
length of tubing.
5. Press [
] to RUN the pump.
6. Press
(security code) within 10 seconds. The word
SET
will flash on the
LCD.
7. The LCD will display the flow rate set
from the last sample taken. If you do
not wish to change the flow rate, go to
Step 9.
8. Press
or
to change the flow rate to
the desired setting as shown on the LCD.
Do not charge or operate the pump with the charger in hazardous locations.
Operation
