General Specifications - Fluke 975 AirMeter User Manual

General Specifications

Measured
Range
Parameters
-5 to 140 F
Temperature
-20 to 60 C
Relative 10 to 90 % R.H.
Humidity non-condensing
50 to 3000 fpm
Air Velocity
0.25 to 15
m/sec
CO 0 to 5000 ppm
2
CO 0 – 500 ppm
*Note: After the CO calibration seal is removed and the Meter is stored for an extended period in arid or humid conditions,
verify that the sensor is within specification by applying a known concentration of gas using the calibration gas kit.
Display
Resolution
±0.9 C /±1.62 F from 40 C to 60 C
0.1 F
±0.5 C /±1.00 F from 5 C to 40 C
0.1 C
±1.1 C /±1.98 F from -20 C to 5 C
±2 %RH from 10 %RH to 90 %RH
1 %
Hysteresis Spec 1%
4 % or 4 fpm*
1 fpm
3 % or 0.015 m/sec*
whichever is greater
0.005 m/sec
* Accuracy specification only valid for velocity readings above 50 fpm.
Warm up time 1 min (5 minutes for full specification)
1 ppm
2.75% + 75 ppm
±5 % or ±3 ppm, whichever is greater,
@ 20 C and 50 %RH
Additional de-rating over Temperature:
±0.6 %/ C from calibration temperature
±0.6 %/ C < 20 °C
1 ppm
Long term drift < 2 % per month.
Maximum shift in arid or humid storage conditions*: ±0.6 % per day
(Reference storage test conditions:
50 °C, 15 % RH and 30 °C, 95 % RH)
Accuracy % of Reading
TM
AirMeter Test Tool
General Specifications
27