Specifications
13
Appendix A
Specifications*
Flow Measurement
Measurement Range
Models 4040/4045 .........
Model 4043 only ............
Accuracy
Air, O
2
...........................
N
2
, Air/O
2
mixtures ........
Resolution (Display) ..........
Response .........................
0 to 300 Std L/min.
0 to 200 Std L/min.
2% of reading or 0.05 Std L/min, whichever is
greater
3% of reading or 0.1 Std L/min, whichever is
greater
Accuracy stated at standard conditions: 21.1°C
and 101.3 kPa)
See notes
1
through
6
below.
0.01 Std L/min between 0 and 90 Std L/min
0.1 Std L/min between 90 and 300 Std L/min
Less than 4 msec, 63% of final value at full
scale flow
Temperature Measurement
Measurement Range ........
Accuracy ...........................
Resolution (Display) ..........
Response .........................
0 to 50°C
±1°C, at flows greater than 1 L/min. See note
2
below.
0.1°C
Less than 75 msec, 63% of final value for 20°C
step change in temperature at full scale flow
Static Pressure Measurement
(Measured inside flow tube near the exit)
Measurement Range ........
Accuracy ...........................
Resolution (Display) ..........
Response .........................
Over Pressure ..................
50 to 199 kPa Absolute
±1 kPa, See note
7
below
0.1 kPa
Less than 4 msec.
63% of final value for 30 kPa step change
620 kPa
Burst Pressure
Tested to 690 kPa without rupture. Do
not
exceed 690 kPa.
Pressure Drop
See Chart.
Volume
Measurement Range ........
Accuracy ...........................
0.001 to 99.99 Liters
2% of Reading at flows greater than 2.5 Std
L/min
See notes
1
through
6
below.
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