Menus; Temperature Setpoint; Units; Calibration - Fisher Scientific Isotemp Plus 13-986-120 Instruction Manual

Note
While in any of the controller mode
setups (temp set, offset or units), the
controller will wait 15 seconds for a
new value to be entered. If there is
no keypad operation within the 15-
second time window, control will
automatically revert to the tempera-
ture display mode and the Mode
LED will turn off.

Menus

By gently pressing the keypads shown in Controls Layout,
the refrigerator can be set to operate anywhere in the 1.0
to 12.0°C (33.8 to 53.6°F) temperature range in units of
°C or °F. When the MENU keypad is pressed, the MODE
LED will illuminate, indicating the operating parameters,
setpoint (SP), temperature offset (oS), hold-off time (Ho),
or units (CF) can be set to the customer's preference.
Temperature Set-Point
Pressing the MENU keypad once will bring up the set-
point menu. The display will flash SP, followed by the last
set temperature in units indicated by the Units LED. Use
the Increase or Decrease keypad to change the set tem-
perature to the desired target temperature (1.0 to 12.0°C,
33.8 to 53.6°F). Press the Menu keypad to enter the set
temperature and bring up the units select menu.

Units

Temperatures can be displayed in either °C or °F. The
units select menu follows the set-point menu. Or, from the
temperature display mode (default mode) press the menu
key until the display flashes CF followed by a single C or
F, which indicates the most recent units selected. Use the
Increase or Decrease keypad to change the units from °C
to °F or vice versa. Press the Menu keypad again to enter
the desired units and return to the temperature display
mode. Once selected, the appropriate units LED should
be lit.

Calibration

In the event the refrigerator needs to be calibrated, a sim-
ple routine is available to adjust the display and control
point to a referenced standard. To set a temperature off-
set while in the temperature display mode (mode LED
off), simply press and hold the Menu key for 5 seconds.
The display will flash "oS" followed by the last tempera-
ture offset value. The factory setting is 0.0. To change
the offset value, press the Increase or Decrease keypad
to the value which when algebraically added to the last
displayed temperature, will agree with the reference tem-
perature. Next, press the Menu key two more times. The
value shown in the display will be added to the previous
temperature reading.
O
PERATION
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