SKC Limited EPAM-7500 - Manual (Page 45)

5-2
Checking the Calibration Span
Introduction The Span Reference Insert Part Number CS-105 is a light scattering device
that provides a constant value (termed a “k” factor).
The Span Reference should be used as a reference to check factory calibration
of the EPAM-7500 Monitor.
When to check
the calibration
span The calibration span should be checked under the following conditions:
•
Once a month with normal usage. (Normal use is twice a week).
• If the EPAM-7500 is dropped or otherwise damaged.
• The first time you use the unit to double check the factory calibration.
Note: The EPAM-7500 must be sent into EDC annually for recalibration. In
accordance with ISO procedures.
Conditions The following conditions must be met before checking the calibration span.
Condition... For further information
see page...
The Environment must be clean. ---
The Battery must be fully charged. 5-7
Figure 5-1. Inserting CS-105 into Haz-Dust Sensor.