Technical Characteristics; Reference Conditions; Electrical Specifications; Temperature Measurements - AEMC 1227 User Manual

5.1. Reference Conditions

Quantity of influence
Temperature
Relative humidity
Supply voltage
Electric field
Magnetic field
The intrinsic uncertainty is the error specified for the reference conditions. It is expressed in the form: % R + b ct,
where R = reading (for example

5.2. Electrical Specifications

5.2.1. Temperature Measurements

Specified measurement range
Resolution
Intrinsic uncertainty

5.2.2. Air Speed Measurements

Specified measurement range 0.25 to 2.99 m/s
Resolution
Intrinsic uncertainty
Specified measurement range 49.0 to 99.9 fpm
Resolution

5.2.3. Air Flow Measurements

Specified measurement
range
Resolution
Intrinsic uncertainty
Specified measurement
range
Resolution
Intrinsic uncertainty
Specified measurement range
Resolution
Intrinsic uncertainty
14

5. TECHNICAL CHARACTERISTICS

Reference values
73 ± 3.6°F (23 ± 2°C)
45% to 75%
3 to 4.5V
< 1V/m
< 40A/m
± 3% R ± 4 cts).
-4 to +122°F
0.1°F
From 32 to 122°F: ± 1.4°F
From -4 to 32°F: ± 2.9°F
m/s
0.01 m/s
± 3% R ± 4 cts
0.1 fpm
0.0000 to 0.100 to 0.999
0.9999 m 3 /s
0.0001 m 3 /s
0.00 to 2.99 m 3 /h
0.01 m 3 /h
0.00 to 2.99 cfm
0.01 cfm
3.0 to 35.0 0.90 to 2.99
m/s km/h
0.1 m/s 0.01 km/h
± 3% R ± 4
fpm
100 to 6,890 fpm
1 fpm
m 3 /s
1.00 to 2.99
m 3 /s m 3 /s
0.001 m 3 /s 0.01 m 3 /s
± 8% R
m 3 /h
3.0 to 99.9 m 3 /h 100 to 2999 m 3 /h
0.1 m 3 /h
± 8% R
3.0 to 99.9 cfm
0.1 cfm
± 8% R
Thermo-Anemometer Data Logger Model 1227
-20 to +50°C
0.1°C
from 0 to 50°C: ± 0.8°C
from -20 to 0°C: ± 1.6°C
km/h
3.0 to 99.9
km/h
0.1 km/h
mph
0.56 to 2.99 mph 3.0 to 78.3 mph
0.01 mph
3.0 to 99.9 100 to 99999
m 3 /s
0.1 m 3 /s
0.00 to 2.99 R/s
1 m 3 /h
100 to 2999 cfm
1 cfm
100 to 126
km/h
1 km/h
0.1 mph
m 3 /s
1 m 3 /s
R/s
0.01 R/s
± 8% R