# Predicting Meter Readings

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## Predicting Meter Readings 11

Predicting O2 meter reading: Known material has vp of 31 mmHg. Which of the following is the correct predicted O2 meter reading?

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## Predicting Meter Readings 12

Predicting O2 readings: vp 15 mmHg Which of the following is the correct predicted O2 meter reading for this vapor pressure?

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## Predicting Meter Readings 13

Predicting O2 readings: vp of 300 mmHg Which of the following is the correct predicted O2 meter reading for this vapor pressure?

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## Predicting Meter Readings 14

LEL conversions to PPM review: LEL reading % times CF times PLEL% = ? ÷ 100 = ?% times 10,000 = ? PPM LEL % x CF x PLEL% = ? ÷ 100 = ?% x 10,000 = ? PPM 10% x 3.4x 4% = 136 ÷ 100 = 1.36% x 10,000 = 13,600 PPM

By |April 3rd, 2017|Predicting Meter Readings|Comments Off on Predicting Meter Readings 14

## Predicting Meter Readings 15

Predicting Lower Explosive Limit meter readings: Multiply the Conversion Factor (CF) times the Published Lower Explosive Limit (PLEL) times 100 = ? CF x PLEL x 100 = ? Divide ? into the maximum achievable PPM from the 1300 rule Example: Propenol's CF for LEL is 2.1%, PLEL is 2.5%, vapor pressure is 17mmHg vp [...]

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## Predicting Meter Readings 16

LEL Meter Prediction: vp = 33 mmHg, LEL CF = 2.2, PLEL = 2.0% Which of the following is the correct predicted LEL meter reading for this material? 33 x 1300 = ? CF x PLEL x 100 = ? ? ÷ ? = predicted meter LEL reading

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## Predicting Meter Readings 17

LEL Meter Prediction: Normal butyl alcohol (n-butanol) vp = 6 mmHg, PLEL = 1.4%, LEL CF = 2.8. Which of the following is the correct predicted LEL meter reading for n-butanol?

By |March 30th, 2017|Predicting Meter Readings|Comments Off on Predicting Meter Readings 17

## Predicting Meter Readings 18

LEL Meter Predictions: Known chemical vp = 3 mmHg, PLEL = 1.2%, LEL CF = 2.5 (per manufacturer's spec's) Which of the following is the correct predicted LEL meter reading for this chemical?

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## Predicting Meter Readings 19

Predicting PID, O2 and LEL Readings: PID formula for predicting is: vp x 1300 ÷ CF = ? O2 formula for predicting is: vp x 1,300 = ? ÷ 50,000 = O2 drop (20.9% - O2 drop) LEL formula for predicting is: (step #1) vp x 1300 = ? (step #2) CF x PLEL X [...]

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## Predicting Meter Readings 20

Predicting PID, O2 and LEL Readings: PID formula for predicting is: vp x 1300 ÷ CF = ? O2 formula for predicting is: vp x 1,300 = ? ÷ 50,000 = O2 drop (20.9% – this O2 drop) LEL formula for predicting is: (step #1) vp x 1300 = ? (step #2) CF x PLEL [...]

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