Please Read Before Installation
The following will damage the Air Check Oxygen monitor.
1.
The Air Check O
2
monitor requires
24 VDC regulated power
.
Please Do Not connect
the monitor to any voltage that exceeds
24 Volts DC, or
ANY AC Voltage.
2. Do not power the Air Check Oxygen monitor with the oxygen sensor
unplugged from the main PC board.
Do Not Connect
the O
2
sensor to
the PC board while the monitor is powered. This Will Damage the O
2
sensor.
3. The oxygen sensor cell is matched to the electronics.
Never exchange
the electronics with an oxygen sensor from a different monitor.
4. When calibrating or challenging the Air check O
2
Ex monitors,
a. Do not expose the monitor to flow rates that exceed ½ liter per
minute, (500 cc per minute) flow.
b. Expose the monitor to span gas blends that consist of
Oxygen and Nitrogen only.
Do Not expose the monitor to
any combustible gas,
i.e. Methane, Hydrogen, etc. Exposure
to combustible span gases can damage the oxygen zirconium
sensor cell.
5. Do not expose the Oxygen monitor to silicone, Freon or corrosive
compounds. They can cause a loss of sensitivity and damage the
sensor.
6. Do not expose the monitor to high flow air or install it directly in front of
fans. The high air flow can cool the oxygen sensor and cause an
inaccurate reading.
7. When using the Air Check O
2
monitor, Do not expose the oxygen
sensor directly to a water stream. In areas requiring wash downs, cover
and protect the monitor and power supply. Contact PureAire for details on
a waterproof enclosure.
8. The Factory Password for entering the menus is
557