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Specifications
Thermo Fisher Scientific
Table 1–1
lists the specifications for the Model 146i.
Table 1–1. Model 146i Specifications
Gas Dilution
Accuracy of each Mass Flow Measurement
Linearity of Mass Flow Measurement
Repeatability of Mass Flow Measurement
Available Ranges
Zero Air
Span Gas
Dilution Ratio
Response time as measured at output of
manifold to 99% of final value
Operating temperature
Power Requirements
Physical dimensions
Weight
Permeation Oven
Temperature Control
Temperature Stability
Warm-up Time – Oven
Carrier Gas Flow
Chamber Size
± 2% of reading or 1% of full-scale, whichever
is less (20 to 100% full-scale)
0.5% of full-scale
± 2% of reading or 1% of full-scale, whichever
is less (20 to 100% full-scale)
5, 10, 15, 20 slm
25, 50, 100, 200, 500 sccm
Depends upon choice of Mass Flow Controllers
Less than one minute for low flows. Faster for
high flow (for gas-phase titration mode
response time increases to 4 minutes). (Meets
or exceeds U.S. EPA Dynamic Parameters
specification requirements for gas-phase
titration.)
0–45 °C*
100 VAC @ 50/60 Hz
115 VAC @ 50/60 Hz
220
240 VAC @ 50/60 Hz
–
275 watts
16.75" (W) X 8.62" (H) X 23" (D)
Approximately 54 lbs. with all options
Single point 30, 35, 45 °C
± 0.1 °C
1 hour (permeation device can take 24-48 hours
to stabilize
150 sccm nominal
Accepts permeation tubes up to 9 cm in total
length; 1 cm in diameter
Model 146i Instruction Manual
Introduction
Specifications
1-7
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Troubleshooting
