Thermo Fisher Scientific CryoExtra CE8100 Series
Operation | 39
6.
Press “ENTER”
The display will read “Calibration
Type”. Use the “
” keys to
adjust to “SINGLE POINT”.
7.
Press “ENTER”
The display will read “Temp A
Calibration”. Completely submerge
the sensing end of Temp probe A
in LN
2
.
8.
Press “ENTER”
The display will read “Wait for
Temp A to stabilize”. Wait for the
displayed Temp A reading to
stabilize while the probe is
submerged in LN
2
before pressing “ENTER”.
9.
Press “ENTER”
The display will read “Probe A
single point calibration complete”.
Two Point Calibration
The two point calibration procedure requires a small volume
of LN
2
and an ice water bath; enough to completely
submerge the end of the sensor. Proper ice water bath
preparation is imperative to ensure accuracy. It is best to add
filtered water to a Styrofoam cup containing crushed ice.
Allow the solution to stand at room temperature for five
minutes prior to beginning procedure.
1.
Press “SETUP”
Controller will prompt for a
password. 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”. Press “SETUP” for
Temp B.
4.
Press “ENTER”
The display will read “Temp A”.
5.
Press “SETUP”
Until the display reads “Temp A
Calibration”.
6.
Press “ENTER”
The display will read “Calibration
Type”. Use the “
” keys to
adjust to “Two Point”.
7.
Press “ENTER”
The display will read “Temp A
Calibration”. Completely submerge
the sensing end of Temp probe A
in LN
2
.
8.
Press “ENTER”
The display will read “Wait for
Temp A to stabilize”. Wait for the
displayed Temp A reading to
stabilize while the probe is
submerged in LN
2
.
9.
Press “ENTER”
The display will read “Remove
Probe A from LN
2
”. Remove the
temperature sensor from the LN
2
.
10.
Press “ENTER”
The display will read “Wait while
probe warms to room
temperature”. Wait while the
temperature sensor warms to
room temperature and the Controller counts down.
11.
Wait 180 seconds
After the Controller counts down,
the display will read “Place Probe
A in ice water”. Completely
submerge the sensing end of the
probe in the ice water bath.
12.
Press “ENTER”
The display will read “Wait for
Temp A to stabilize”. Wait for the
displayed Temp A reading to
stabilize while the probe is
submerged in the ice bath.
13.
Press “ENTER”
The display will read “Probe A two
point calibration complete”.
Calibration Type
SINGLE POINT
Use
to
adjust
Press ENTER for next
Temp A Calibration.
Place Probe A in LN
2
and press ENTER
Wait for Temp A to
stabilize then press
ENTER
Temp A -195.8ºC
Probe A single point
calibration complete
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
Press ENTER to
Temp A Calibration or
press SETUP for next
menu
Calibration Type TWO
POINT
Use
to
adjust
Press ENTER for next
Temp A Calibration
Place Probe A in LN
2
and press ENTER
Wait for Temp A to
stabilize then press
ENTER Temp A -
195.8ºC
Remove Probe A from
LN
2
and press ENTER
Wait while probe warms
to room temperature
180 seconds
Place Probe A in ice
water and press ENTER
Wait for Temp A to
stabilize then press
ENTER Temp A 0ºC
Probe A two point
calibration complete
