Forma Scientific 3158 - Control Switch; Silence Switch; Gas Depletion Alarm; Active Tank Indicating Lights

Forma Scientific, Inc.
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5-5
Figure 5-3
Built-in Gas Guard
(Factory Installed Option)
a. Control Switch
The CONTROL switch controls
power to the gas guard control circuit
board. The yellow LEDs on the front
panel designate which tank is active and
indicate the unit is receiving power.
b. Silence Switch
The SILENCE switch silences the
alarm and selects the alternate tank. If
the SILENCE switch fails to silence the
alarm, it is an indication that both gas
tanks are depleted or incapable of
producing 15 PSIG.
Note: During initial start-up, the
incubator should not be injecting gas.
c. Gas Depletion Alarm
The gas depletion alarm sounds
automatically when the active supply
tank becomes empty. The other tank
becomes active with the sounding of the
alarm.
Note: Should both supply tanks become
depleted, the only way to silence the
alarm is to turn the CONTROL switch
to Off.
d. Active Tank Indicating Lights
The two yellow indicating lights labeled "TANK1 On" and "TANK2 On," located on
the front of the control panel, indicate which of the gas tanks is active.