TSI Instruments SidePak AM520, Руководство пользователя

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Chapter 3 34
6. The instrument will count-down from 60 to 0 and display
Zero Cal Complete.
7. Press the ESC key to return to the CALIBRATION menu.
8. The instrument is now ready to make accurate measurements.
Flow Cal
Aerosol concentration measurements with
the SidePak
™ AM520/AM520i monitor are
accurate regardless of the flow rate through
the instrument. However, size-selective
aerosol sampling inlets such as impactors
and cyclones require specific flow rates to
function within their design specifications. If
using a size-selective inlet, adjust the flow
rate precisely. It is always a good practice to
adjust the flow rate before the start of a
sampling session.
AM520 connected to TSI
®
4146 Flow Meter (sold separately)
To adjust the flow rate, you will need a flow calibrator. This can be a
simple rotameter or a precision flow calibrator often used for setting
the flow on personal sampling pumps. A flow calibrator is an optional
item and is not included with standard AM520/AM520i kits.
1. Connect a flow calibrator to the inlet.
2. Start the instrument by pressing the ESC-ON/OFF key. After the
SidePak
™ monitor goes into SURVEY mode, press the
ESC key
three times to reach the MAIN MENU.
3. Under MAIN MENU
, use the ▲ ▼ keys to scroll to
CALIBRATION and press

(ENTER) .
4. Under the CALIBRATION MENU
, use the ▲ ▼ keys to select
FLOW CAL and press

(ENTER) .