MVE Biological Systems
TEC 3000 Operating and Maintenance Freezer Manual
13289499 Rev H •
48
7.2.1.2. High Temperature Alarm Test
The high temperature alarm test allows a user to simulate a high temperature alarm
without having to remove it from the freezer. Once initiated, the TEC 3000 will apply a
small voltage to the sensor, which causes the sensor to heat up. The TEC 3000 will
continue to heat the sensor until it exceeds the High Temp Alarm setting. Once
surpassed, a High Temp Alarm will result and the sensor readings will begin to decrease.
The alarm buzzer will sound and the remote alarm contacts will switch to alarm state until
the simulated alarm is cleared. (Press Alarm Mute)
NOTE: The heat generated by the sensor during the High Temperature Alarm
Test is NOT enough to affect the actual temperature in the freezer storage
space. If the sensor is submerged in LN2, the heat generated by the sensor may
not be sufficient to initiate a high temperature alarm.
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 “ENTER”
The display will read “Temp A Menu”.
NOTE: To access Temp B Menu, press “SETUP”
instead of “ENTER”.
4. Press “ENTER”
The display will read “Temp A Enabled”.
5. Press “SETUP”
The display will read “Initiate High Temp A Alarm Test”.
Use the “▲/▼” keys to change NO to YES and press
“ENTER” to initiate the alarm test.
If High Temp Alarm Test is initiated, the display will read
“Testing” and show the temp change throughout the
test.
Note: If the temperature probe is open or no probe is
connected the controller will not go into the high
temperature alarm test mode.
Higher User Level
Required use ▲▼ to
ENTER Password
0000
Press ENTER for
Temperature Menus
or press SETUP for
next menu
Press ENTER for
Temp A Menu
or press SETUP for
next menu
Temp A
ENABLED
Use ▲▼ to adjust
Press ENTER to save
Initiate High Temp A
Alarm Test
NO
TEMP A -196.2 °C
Initiate High Temp A
Alarm Test
TESTING
TEMP A -115.8 °C