15
User Manual EE680
Air Velocity and Temperature Sensor for Laminar Flow
Fig. 16
Laminar flow monitoring parameter setting
Measurand
Value
Standardized air velocity vn
0.45 m/s
88.6 ft/min
Range
±
20 %
Range lower limit
0.36 m/s
70.9 ft/min
Range upper limit
0.54 m/s 106.3 ft/min
Tab. 4
Factory default values for laminar flow monitoring
Fig. 17
Response time setting
The fastest response time possible is 1.5 s with averaging over 1 value. Averaging over n measurement
values corresponds to a response time of n seconds. The vn measurement response time t
90
can be
changed in the range between 1.5 and 40 s. The factory setting is 1.5 s.
