Forma Scientific 3546 - 3.12 Setting the Chamber Temperature; 3.13 Setting the Overtemp Safety Thermostat

Forma Scientific, Inc.__________________________________________Installation/Start-up
3-10
When installing the humidity pan, exercise care to
avoid tearing the inner door gasket.
3.12 Setting the Chamber Temperature (Refer to Figure 3-4)
Before the initial temperature setting is made, push in on the PUSH TO SET button on
the Alarm Monitor Module. Using the screwdriver on the control panel, turn the
OVERTEMP set screw until the display shows a temperature that is two to three degrees
above the desired operating setpoint. The overtemp safety may be reset after the chamber
temperature has stabilized at setpoint.
If a chamber temperature of 37°C is desired, set the Variable/37°C switch on the
Temperature Control panel to the 37°C (up) position. (Figure 3-2.)
If a value other than 37°C is desired, set the switch to the Variable position (down),
and set the temperature control knob to the desired setpoint. Any temperature between
5°C above ambient to 50°C may be selected.
3.13 Setting the Overtemp Safety Thermostat (See Figure 3-4)
Once the chamber temperature has stabilized (as indicated by the digital display), the
Over Temp Safety should be set as follows:
 Push the SET/SILENCE button on the Alarm Monitor Module.
 Using the screwdriver mounted on the control panel, turn the OVER TEMP set
screw until the desired over temp alarm point is shown on the digital display. The
over temp setpoint can be set within 0.1° of the operating setpoint, but it is
recommended that it not be set within 0.5 of setpoint.
Note: The Over Temp Safety should be checked quarterly to insure proper operation. To
check the over temp control, push the SET/SILENCE button on the Alarm Monitor
Module and turn the Set screw counterclockwise until the over temp safety light is lit.
Reset the Over Temp Safety after the test.