Looking at the top of
the module, locate the red
DIP switch indicated in
Figure 5-2. With a finger-
nail or small screwdriver,
turn off SW #2 by moving
the white toggle down or
towards the front of the
module. (SW#2 is the top
switch when looking at the
module from the right side.)
Very carefully, replace
the module into its frame and press firmly on the top and bot-
tom of the bezel until all four locking tabs “click” into place.
b. Removing the Software Lockout
Press the Up and Down Arrows at the same time and hold
them for about three seconds. The words “inpt” (input) and
“set” will appear in the top and bottom displays. (Figure 5-3) If
numbers in the bottom display begin to scroll up or down, the
keys have not been pressed simultaneously. Try again.
Press the Up Arrow until “gLbL” (global) appears in the
upper display. The word “set” will remain in the lower display
(Figure 5-4).
5 - 2
Press the Mode key to scroll through the menus until the
upper and lower displays show “2 Loc” (Figure 5-5). Press the
Down arrow key until the “2” becomes “0” (zero) as shown in
Figure 5-6.
c. Controller Configuration
The Watlow 982 Temperature Controller has been config-
ured at the factory. Copies of the Watlow Configuration records
are included at the end of this section.
Do not reconfigure the controller without first
consulting the Technical Services department at
(888) 213-1790.
Refer to Section 3 of this manual for Watlow 982 controller
operating instructions. The Watlow factory manuals are includ-
ed with this manual.
d. Offset Calibration (Temperature)
It may be necessary to calibrate the temperature controller
to match an independent temperature sensor. To do so, follow
the next few steps.
1. Suspend an independent, calibrated sensor(s) in the cen-
ter of the interior chamber.
2. Allow approximately 30 minutes for the incubator to
stabilize.
3. Turn off the main power switch.
4. Wear a grounding wrist strap to avoid damaging any of
the electrical components.
Environmental Chamber _____________________________________________________________________________Service
Figure 5-3
Figure 5-4
Figure 5-5
Figure 5-6
Figure 5-2
