Thermo Scientific NICOLET FT-IR User Manual page 10

Warning
6 Thermo Fisher Scientific
The table below describes the function of each indicator light on the
front panel:
Indicator Function
Power This indicator is lit whenever the module power
is on. The power switch is on the rear panel.
(See the illustration in the next section.)
Transfer Line This indicator is lit when the transfer line is
being heated. When the temperature of the
transfer line is close to the setpoint, the indicator
cycles on and off.
Cell This indicator is lit when the gas cell is being
heated. When the temperature of the cell is close
to the setpoint, the indicator cycles on and off.
Alarm This indicator is lit when an alarm condition
occurs. The system responds by shutting off the
heater power. Alarm conditions can be caused by
an open thermocouple, the temperature of the gas
cell or transfer line being too high, or a
malfunctioning heater. If an alarm condition
occurs, turn the module power off and then
contact Technical Support for assistance.
To avoid burn hazard, turn off the module power whenever the
alarm indicator lights. Allow the transfer lines and gas cell to cool
before you turn on the power to the module again.