edc Haz-Dust SM-4000, Руководство пользователя, Страница: 66 / 88

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6 Perform the Auto-Zero process using the steps in the table below.
Step Action
6-1 I
nsert the zeroing filter into the Thoracic sampling inlet.
6-2 Select Auto-Zero.
Result: The Auto-Zeroing screen appears briefly.
6-3 Select Auto-Zero.
Results:
•
The Auto-Zeroing screen appears during the
autozero process.
•
The Main Menu is displayed when the Auto-Zero
process is complete.
7 Remove the Thoracic sampling inlet from the sensor head.
8 Disconnect the air intake tubing.
9 Push the calibration reference CS-104 into the sensor head (see
figure 5-1 on page 5-2).
10 Activate the internal sampling pump again by repeating the process
described in step number five on page 5-3. Skip step number 5-4
and leave the sampling pump running.
11
Observe the printed “k” value on the calibration reference.
Note: The printed “k” value should match the concentration value
shown on the SM-4000 LCD to 10%.
Note: If the CS-104 is purchased as an after market accessory or
from SKC, Inc., then the user must assign a “k” value.
IF THEN The numbers agree The SM-4000 has passed the
span 10% check test.
The numbers do 1. Repeat the process to rule out
error, not agree then
10%. 2. Call EDC technical support or
return the SM-4000 for
recalibration.
5