Fisher Scientific 146E, Quick Start Manual, Page: 2 / 6

INSTALLATION
The Low Temperature Incubator should be installed on a
level, stable floor. Install the 4 adjustable feet per
instructions inside package. Use the adjustable feet to level
the incubator. Locate the unit so that area in front of door
and kick grill is clear. To prevent heat build up within the
unit, do not install it where it will be exposed to strong
sunlight, nor near radiators, furnaces, or other sources of
heat. Do not install the incubator where flammable or
corrosive atmospheres may exist. The Low Temperature
Incubator is not to be used out-of-doors or where excessive
moisture or contamination could cause degrading of
mechanical or electrical components.
1. Remove all protective tape from doors and shelves.
2. Clean interior and exterior with warm soap and water.
Shipping tape residue can be removed using isopropyl
alcohol.
3. Uncoil line cord from rear of unit. Connect the plug to a
power outlet that complies with the electrical requirements
specified on the unit's label and with proper safety ground
connection. If line cord replacement is necessary, use CSA
types: SJ, SJO or SJT, 16 GA, 3 conductor or equivalent.
Door Reversal:
1. Disconnect unit from power source. On inside of door,
directly behind controller, open snapped conduit and
remove controller cable.
2. Remove screw that secures cable clamp holding
controller cable, then replace screw.
3. Remove controller cable from J clamps that run along
inside chamber side and back walls.
4. Place 3 J clamps (Provided) at approximately the same
spacing (on opposite side) as existing J clamps.
5. Support door with one hand remove screw securing door
to upper hinge, then lift door off bottom hinge.
6. Remove the three screws securing each hinge to
chassis.
7. Remove three plug screws covering holes on left side,
then install them in holes on right side,
8. Install hinges on left side using screws removed in step
6. Position hinge with door screw on bottom.
9. Position door on hinge then insert screw previously
removed in step 5.
10. Attach supplied latching duct to inside on door, in line
with controller cable toward opposite side on door from
other duct.
11. Route cable using J clamps and latching duct.
12. Remove screw on left front of enclosure and install
cable clamp with removed screw.
13. Adjust size of loop in cable where door is hinged to
ensure door can fully open and close without interference.
CONTROLS
Power ON/OFF Switch: Located inside chamber area, is
used to turn power (1) ON or (0) OFF to entire unit.
Keys: Located on front panel.
MENU Used to access menus.
SET Used to display setting.
∆
INCREASE setting.
∇
DECREASE setting.
DISPLAY and INDICATORS
DISPLAY: (On front panel)
Displays chamber and set point temperatures in
°
C and
prompts from menu.
INDICATORS: (Front panel)
DELAY: Lights when delay start timer for compressor is
timing. Will begin timing when power is first applied or
when cooling is first turned off.
ALARM: Indicates that chamber temperature is not within
limits and the safety relay is opened.
COOL: Lights when cooling compressor is on.
HEAT: Lights when controller demands heat.
GENERAL FUNCTIONAL CHECKS
1.Turn power on to unit by placing the Power ON/ OFF
Switch to I (ON) position. The Controller (mounted on front
of door) will display S , then, 88.8 (to test display), then
begins reading actual chamber temperature.
Note: When power is first applied, if display indicates an L
instead of an S, a switch setting on the controller must be
changed. Refer to Replacing Temp Controller (TC1).
2. After 3 seconds, the alarm LED on the controller should
extinguish and the safety relay should close applying power
to the heater, fan, compressor relay and convenience
outlet.
3. Press and hold MENU key, after 3 sec. the display will
indicate CAL. Release and press MENU again to display
Pct, press SET, display should indicate 100. Press and
release MENU again to indicate Pro, press SET, display
should indicate 00, press and release MENU to return to
normal control mode. Press SET to display control setpoint,
display should read 25.0. If the control setpoint or any of
the other parameters aren't set correctly, use the
∆
or
∇
keys while pressing SET to change the setting.
4. The DELAY LED will be lit for 7 minutes after power is
first applied, the COOL LED will be out during this delay
period. When the DELAY LED goes out, the COOL LED
will light and the compressor relay will close starting the
compressor.
5. Allow unit to stabilize for 1 hour at 25
°
C, to ensure that all
systems are functioning.
OPERATION
Perform the procedure under General Functional Checks if
incubator is new or hasn't been operated for a long time.
Controller operation:
Usually the only controller setting that is necessary to
change is the chamber temperature control setpoint. Other
parameters of the controller may be changed by accessing
them through the MENU key, covered later.
Changing Chamber Temperature Control Setpoint
1. The chamber temperature is continuously displayed,
unless a key is pressed.