MVE Biological Systems
TEC 3000 Operating and Maintenance Freezer Manual
13289499 Rev H •
52
7.2.2.
Liquid Level Settings
This section demonstrates how to adjust the LN2 level settings.
7.2.2.1. Level Setpoints and Alarms
The auto fill settings can be adjusted in the Liquid Level Menus. With auto fill enabled,
the TEC 3000 will initiate an auto fill when the level is at or below the Low Level Setpoint
and terminate a fill when the level reaches the High Level Setpoint. If the level is at or
below the Low Level Alarm or at or above the High Level Alarm, the TEC 3000 will initiate
that respective alarm.
NOTE: There must be a minimum of 0.5 inches between each of setpoint and
alarm. For example, if the Low Level Alarm is set to be 4.0 inches, then the Low
Level Setpoint would have to be set at least 4.5 inches. The Low Level Alarm can
be set to a minimum value of 3.0 inches and the High Level Alarm can be set to a
maximum value of 48.0 inches.
NOTE: Security Level 2 or higher is required to adjust the Liquid Level Settings.
1. Press “SETUP”
Controller will prompt for a password. A flashing cursor
on the entry screen will make it clear which digit is being
changed. Use the “▲/▼” keys to scroll to the
appropriate number. Press “ENTER” to advance the
cursor to the next position.
2. Press “ENTER”
The display will read “Temperature Menus”.
3. Press “SETUP”
Until the display reads “Liquid Level Menus”.
4. Press “ENTER”
The display will read “High Level Alarm”. Use the “▲/▼”
keys to adjust the High Level Alarm value and press
“ENTER” to save the change.
5. Press “SETUP”
The display will read “High Level Setpoint”. Use the
“▲/▼” keys to adjust the High Level Setpoint value and
press “ENTER” to save the change.
6. Press “SETUP”
The display will read “Low Level Setpoint”. Use the
“▲/▼” keys to adjust the Low Level Setpoint value and
press “ENTER” to save the change.
7. Press “SETUP”
The display will read “Low Level Alarm”. Use the “▲/▼”
keys to adjust the Low Level Alarm value and press
“ENTER” to save the change.
Higher User Level
Required use ▲▼ to
ENTER Password
0000
Press ENTER for
Temperature Menus
or press SETUP for
next menu
Press ENTER for
Liquid Level menus
or press SETUP for
next menu
High Level Alarm
8.0 in
Use ▲▼ to adjust
Press ENTER to save
High Level Setpoint
7.0 in
Use ▲▼ to adjust
Press ENTER to save
Low Level Setpoint
5.0 in
Use ▲▼ to adjust
Press ENTER to save
Low Level Alarm
4.0 in
Use ▲▼ to adjust
Press ENTER to save
Содержание MVE 1842P-150
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