Tisch Environmental TE-5170DV, Руководство по эксплуатации

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TE-5170DV-BL 20 Operations Manual
F) Degrees K and Ta in degrees C will be calculated by the
spreadsheet
Barometric
Pressure Enter the ambient barometric pressure (Pa) inches of Hg at
calibration, the Pa in mmHg will be calculated by the
spreadsheet
2. Enter the calibration information by performing each calibration point and
entering the following information into each corresponding row for each
point:
Calibration Information
Orifice
“H
2
0
The pressure measured at the orifice port using a manometer. The first point should
be performed with the orifice knob turned counter-clockwise or wide open, then four
consecutive points turning the orifice knob clockwise (not closed)
Good idea to take a few extra points here.
Sampler
“H
2
0
The pressure measured at the sampler side port using a manometer
(clear tubing that is connect to bulk head fitting that is connected to
side of filter holder)
The calibrator flow is calculated (Qa) using the formula:
𝑄𝑎 =
1
𝑆𝑙𝑜𝑝𝑒
𝑥 √"𝐻20𝑥 (
𝑇𝑎
𝑃𝑎
) − 𝐼𝑛𝑡𝑒𝑟𝑐𝑒𝑝𝑡
The calculated flow in m
3
/min will be calculated using the g-factor formula, this flow will correspond to the flow
found in the lookup table supplied with the VFC.
The percent difference will be calculated using the formula:
% 𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 =
𝐶𝑎𝑙𝑐𝑢𝑙𝑎𝑡𝑒𝑑 𝐹𝑙𝑜𝑤 − (𝑄𝑎) 𝐶𝑎𝑙𝑖𝑏𝑟𝑎𝑡𝑜𝑟 𝐹𝑙𝑜𝑤
(𝑄𝑎) 𝐶𝑎𝑙𝑖𝑏𝑟𝑎𝑡𝑜𝑟 𝐹𝑙𝑜𝑤
𝑥 100
As per stated in the method IO-2.1, % Difference calculations should be less than +-4%
3. To calculate the total air volume during the sample enter the following
information: