Fluke 922 - Manual (Page 31)

Airflow Meter
Specifications
23
Environmental
Operating Temperature 0 ° C to +50 ° C
Storage Temperature -40 ° C to +60 ° C
Temperature Coefficient 0.025 X (specified accuracy) / ° C
(< 18 ° C or > 28 ° C)
Relative Humidity:
Non condensing (< 10
° C)
90 % RH (10 ° C to 30 ° C)
75 % RH (30 ° C to 40 ° C)
45 % RH (40 ° C to 50 ° C)(Without Condensation)
IP Rating IP40
Operating Altitude 2000 m
Storage Altitude 12000 m
EMI, RFI, EMC Meets requirements for EN61326-1
Vibration MIL-PREF-28800F, Class 3
Maximum Pressure at each Port 10 PSI