Owner's manual

SECTION I: Introduction
13 NEXTTEQ LLC (Rev. 2) 4/09
1.4 ACCURACY & CALIBRATION
The Airtec System when used in accordance with tube instructions provides an accuracy
of ±25%.
The flow meter is factory calibrated and should not require recalibration with normal use
and proper care of the unit.
Should a calibration check be required, the unit may be returned to the factory, or
calibration may be checked using a soap film bubble meter.
TABLE 2
AIRTEC TUBE DATA
Gas/
Substance
Part
No.
Measuring
Range
Flow
Rate
(cc/min)
Sample
Time
(Min)
Humidity
Range
(%RH) Color Change
Carbon Monoxide 1A 5-50 ppm 100 3 20-90 Yellow to Dark Brown
Carbon Dioxide 2AG 200-3000 ppm 100 1.5 Pale Blue to Purple
Water Vapor 6AH 500-5000 ppm 300 1 Green to Purple
Water Vapor 6A 30-80 mg/m
3
100 10 -- Yellow to Purple
Water Vapor 6AG 150-3000 mg/m
3
300 1 -- Green to Purple
Nitrogen Oxides 11A 0.02-0.7
0.06-2
100
100
5
2
White to Bluish Green
Oil Mist * 109AD 0.2-5.0 mg/m
3
1000 20 Orange to Pale Blue
* Oil Mist test may be run 1000 scc/min for 20 min as indicated in tube instructions.
Flow rates over 500 scc/min require a high range flow meter. However, Nextteq’s
Regulator has a maximum flow rate of 500 scc/min, so the oil mist tubes should run at a
500 scc/min for 40 minutes.
All tubes have a Temperature Range of 4-40°C.
SECTION I: Introduction SECTION I: Introduction