PerkinElmer Photovac MicroFID, Руководство пользователя

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Detailed Operation
compounds and concentration ranges you will store a Cal Memory
and the associated response factor and alarm level as part of each
event. In this way you can sample numerous locations without
having to re­calibrate MicroFID at each location.
You can enter the monitoring schedule in one of two methods.
Regardless of the method you use to enter the monitoring schedule;
you must calibrate the required Cal Memories before you enter the
monitoring schedule.
Calibration
You must determine the number of calibration standards that will be
required to perform Method 21 monitoring for your site. Refer to
the Method 21 documentation for details.
To program your cal memories:
1. Prepare the bags of calibration gas as outlined in Preparing
the Calibration Gas Bag and the Zero Air Bag on page 66.
Use a different gas bag and gas bag adapter for each
concentration and for each type of calibration gas.
You can use the same gas bag to zero all the Cal Memories;
however, you must refill the bag for each Cal Memory.
2. Press CAL and select the desired Cal Memory (1 to 10)
with the ARROW keys.
3. Enter the desired response factor and press ENTER. See
Response Factors on page 149.
NOTE:
It does not matter which Cal Memory is selected or which response
factor is entered, MicroFID’ s response is not specific to any one
compound. The displayed reading represents the total
concentration of all ionizable compounds in the sample.
4. Select the Low Range or High Range and press ENTER.
The range will depend on the concentration of the
calibration gas. Use Low Range if you are sampling
concentrations between 0.5 and 2000 ppm (methane
equivalents). Use High Range if you are sampling
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