MicroAir Statistics0 pages

MicroAir
Specifications
Available Pressure Ranges:

In inches of water: 0-.25, 0-1, 0-2, 0-3, 0-5, 0-15, 0-30, 0-50, 0-60, 0-80, 0-100
PSI: 0-3 psi and 0-5 psi (max)
Also available in mbar, oz per sq. inch, cm w.c; and kPa
Note: 1 psi = 27.68 inches of water

Air Connections (IN):

45 psi (+/- 10 psi) for optimum performance of single unit.
55 psi for Dual or MultiAir
1/4 NPT fittings

Power Supply:

110/220 VAC 50/60 Hz
All units operate below 50 volts.
Protected by a 1/2 amp 250 volt fuse in the input module.

All models are CE certified for sale to European countries.
NOTE: Precision, repeatability, and stability are most favorable for units with full scale less than 1 psi (0-30” of water).
The following specifications are the results of in house off-line testing with a digital precision sensor
(accurate to 0.25% of full scale).
Stability of regulator:

< +/- 0.2% for 30 inches of water and below.
< +/- 0.3% for psi

Accuracy:

Flow changes of 50% effect the pressure by less than +/- 0.2% of full scale for low ranges and +/
- 0.5% of full scale for higher psi units.

Regulator Pressure Repeatability: +/- 0.2% of full scale for low ranges.
+/- 0.3 % for 3 and 5 psi
Pressure Display Resolution:

Magnehelic meter +/-2% of full scale.
Digital Display (option): +/- .1% of full scale below 60” of water (.01” of water)
+/- .3% of full scale above 3 psi (.03 psi)

Control Features:

MicroAir I—manual control only, 10 turn knob
MicroAir II—Up/Down Manual control dual speed push buttons
3 internal screw Terminals Up/Down/Gnd (to OD Gauge or wall measurement gauges).
Up, Down and limit indicators
Optional: Remote Control unit with digital display and push buttons.
Optional: Modbus for connecting to PLC unit
MicroAir IV—10 turn manual control potentiometer
Linear State Control—0-10 Volt Signal input
Dual State Control—hi speed motorized remote switching
Optional up/down contact closures

Damping Oil:

All units come with a bottle of silicone oil for damping with clear ventilated oil cup.
Oil does not come in contact with your plant air at any time and does not evaporate.

Output options available:

MicroAir I—n/a
MicroAir II—Voltage Outputs (0-5 volt, 1-6 volt or 0-10 volt output)
Current Output 4-20 ma
Modbus for connecting to PLC controller
MicroAir IV—Voltage Outputs (0-5 volt, 1-6 volt or 0-10 volt output)
Current Output 4-20 ma

Mounting of MicroAir

Vertical Mounting required.
Four 5/16” diameter holes in a rectangular pattern
New Door latch allows for padlocking.

Air Flow Input

< 2.5 SCFM per channel (150 SCFH)

Air Flow Output

Varies by Range—see chart

On Line Controls, Inc, 9A Kane Industrial Dr., Hudson, MA 01749-2905 USA www.onlinecontrols.com
Phone: 978-562-5353 * Fax: 978-562-8986 * Email: olc@onlinecontrols.com