Connecting the Gas Supply Chapter 4 - System Setup
Apollo Operator’s Manual 47
Part Number: 90 38 237, 6th edition
4. To ensure that the cylinder pressures are
adequate, check that the gauges above the
cylinder yokes indicate pressures recommended
in Table 2 below. Also, if the cylinder pressures
are adequate, the cylinder pressure LEDs on the
front machine panel (1 in Figure 28) are
illuminated green.
Figure 28. Location of Cylinder Pressure LEDsIf the cylinder pressure LEDs remain dark, it
means that the cylinder pressure is inadequate
or that the cylinders are not connected properly.
5. Close the cylinder valves.
Table 2. Recommended Cylinder Gas PressuresCylinders attached to the hanger yokes must contain
gas at the recommended pressures shown in Table
2. (Indicated pressures are for E-size cylinders at
70°F/21°C.) Cylinders measuring less than the
minimum recommended pressure (PSI - MIN) should
be replaced with new, full cylinders.
1
GAS
PSI/bar - FULL
(typical full load)
PSI/bar - MIN
Air 1900/131 1000/69
Nitrous Oxide 745/51 600/42
Oxygen 1900/131 1000/69