The AXD550 MicroManometer is a compact portable digital instrument.
The AXD550 MicroManometer is a compact portable digital instrument. Using microprocessor-based electronics, the AXD550 measures, records and stores differential pressure, static pressure and air velocity readings for HVAC, industrial and plant maintenance applications. The AXD550 is easy to use. A zeroing feature is available at the push of a button. It is completely position-insensitive, and is small enough to fit easily in a pocket, leaving the user's hands free to reach difficult locations to take pressure readings. The AXD550 feature a high contrast LCD. Memory contents can be reviewed using a unique ‘page & line’ display. With a push of a button the user can store 100 velocity, pressure or volume readings. Results can be downloaded to a computer using the integral RS232 port. The AXD550 allows the user to measure negative pressures without switching hoses and offers correction factor menu options to compensate for changing environmental conditions.
Measurement Units
Pascals
Inches per water column
Millimeters of water column
Feet per minute
Feet per second
Meters per second
Miles per hour
Kilometers per hour
Cubic feet per minute
Cubic meters per hour
Liters per second
SPECIFICATIONS
Range
Pressure Measurement
-4.00 to +20.00 "H2O
-1000 to 5000 Pa
Velocity Measurement (using optional 12 inch pitot tube)
253 to 17,910 fpm
4.17 to 298.5 fps
2.84 to 203.5 mph
1.29 to 91.21 m/s
0.78 to 5.47 km/h
Volume Measurement
Velocity measurements may be multiplied by area values up to 78.8 in2 or 2.0 m2
Resolution
Pressure Measurement
0.002" H2O (-.998 to +.998)
0.01" H2O (-4.01 to -1.00)
0.01" H2O (1.00 to 9.99)
0.1" H2O (10.0 to 20.0)
1 Pa, except 0.5 Pa (-99.5 to +99.5 Pa)
Display resolutions for velocity and volume units. (Measured values are stored with better precision)
0.01 (0 to 99.99)
0.1 (100 to 999.9)
1 (1000 to 9999)
Scientific notation (10000)
Accuracy
For pressure measurement only, after zeroing
±(1% of indicated reading + resolution from 15° to 35°C)
±(4% of indicated reading + resolution otherwise)
Ambient temperature Error, without zeroing
±0.22% of full scale per degree F
±0.40% of full scale per degree C
Operating Temperature
-4°F to 140°F
Overpressure Limit
20 psi or 137 kPa or 553 "H2O
Power
3 'AA' Alkaline batteries, provides 15 hours continuous use
