Alemite Carbon Shield, Installation, Operation And Maintenance Manual

Page: 14 / 58

www.alemitecarbonshield.com
12 | alemite Carbon Shield Service Sheet
Tank Assembly
The tank assembly (Fig. 10) contains an oil reservoir
which stores the oil for mist production, mist head
assembly, oil heater, temperature and pressure
sensors and a capacitive level sensor.
Loader Fitting
A loader fitting allows oil to be added to the reservoir
with a manual bucket pump when the optional
automatic refill package is not purchased. (Fig 11)
Capacitive Level Sensor
The console’s oil reservoir contains a capacitive level
sensor, which detects change in oil level as a
function of change in capacitance between sensor
and reservoir wall. The level sensor provides 4-20
mA signals to the PLC for level control and oil
consumption monitoring. Sensor wiring is done at the
factory. The level sensor is UL/CSA certified
for service in Class I, Division 2 environments and
measures the oil level in the reservoir with accuracy.
It is calibrated to work with oil only. (Fig. 12)
Oil Heater
The oil heater is an immersion-type rated at 500
watts. The oil heater is rated for 120 vAC or 240
vAC depending on the application, and the
housing meets NEMA 4/7 specifications. (Fig 13)
Air Pressure Control
Customer-supplied instrument-quality air connects
to the left side of the console’s cabinet using
a ½ inch 150-pound stainless steel screw flange.
(Fig. 14) From the flange, the air flows through the
filter/regulator which is equipped with a gauge,
a 5 micron filter and a moisture separator with
automatic drain. (Fig. 15) The pressure gauge
allows the user to view the inlet pressure and
to set the incoming air pressure between 70 psi
and 95 psi (4.92 to 6.68 kg/cm
2
) at start-up.
Fig. 12 Fig. 11
Fig. 14 Instrument air
inlet – 1/2 NPT
Fig. 15
Fig. 10
Fig. 13