Thermo Scientific 1300 Series Operating Manual page 34

Operating Modes
Thermo Scientific
The following are the operating modes for this unit.
• Calibration mode
• OFF mode
• Window open mode
• Working mode
• Standby mode
• UV mode
Off mode means the unit is in an idle state. The unit is turned off
(blowers are off ). The sample chamber light is enabled. The unit is
connected to a power source. The blue LED "internal power supply
activated" is lighted.
Window open mode is the state in which the window is open and
positioned outside of the 10" working position. To install or remove
accessories, the front window can be moved to the maximum open
position. For cleaning, the front window can be lowered beyond the closed
position (see Use of the Window, Section 1).
The air system blowers are switched on with the red LED "airflow volume
steady" lighted. The front window is not in the work position, with the red
LED "front window not in work position" is lighted. The sample chamber
light is enabled. The power supply for the internal outlets is enabled with
the blue LED "internal power supply on" is lighted.
Working mode is active when the front window is in the working position
(10 inch opening) and the air system is operating steadily. The green LEDs
"front window is in work position" and "airflow steady" are lighted.
The markings on the side guide rails and the lower edge of the front
window are at the same height with no audible alarm signal.
The sample chamber light and power for the internal outlets are enabled
with the yellow LED "internal power supply activated" is lighted.
The RS-232 contact is open. The display shows operating hours,
downflow velocity and exhaust air velocity.
Standby mode is the state in which the window is closed with the blower
velocity reduced. The red LED "front window not in work position" and
the blue LED "airflow reduced" are lighted.
The sample chamber illumination is enabled. The internal power supply in
the sample chamber is enabled. The red LED "airflow not steady" and the
blue LED "internal power supply activated" are lighted.
Section 4
Operation
1300 Series A2 4-3