Remote alarm connections are also included on the terminal strip (Figure
1-3) providing Normally Open (N.O.) and Normally Closed (N.C.)
contacts. C is the Common terminal. The remote alarm will activate when
either the incubator’s temperature, humidity, or CO
2
go out of the set
alarm limits.
See the serial tag on the side of the unit for electrical specifications, or refer
to the electrical schematics at the end of this manual.
Caution
Connect the incubator to a grounded, dedicated circuit. For
Models 3911 and 3940, the power cord connector is the mains disconnect
device. Models 3913 and 3949 have a fusable disconnect located on the
back of the unit. Position the incubator so the unit can be easily
disconnected.
V
For Models 3911 and 3940, plug the provided 10 ft. power cord with the
NEMA 14-20 plug into the grounded dedicated electrical circuit.
When the humidification system is operational, the incubator may be
started. Preset the controls as follows:
Overtemp Safety Thermostat . . . . . . Fully Clockwise
Undertemp Safety Thermostat . . . Fully Counterclockwise
Main Power Switch . . . . . . . . . . . . . . . . . . . . . . .ON
Humidity Controller . . . . . . . . . . . .Desired Setpoint
Temperature Controller . . . . . . . . . .Desired Setpoint
Door Heater . . . . . . . . . . . . . . . . . .40% (factory set)
For best overall performance of the incubator, the refrigeration switch
should be turned On for most applications. When running Low or No
humidity at high temperatures, the refrigeration switch may be turned Off.
Caution
The defrost switch must be turned on when the temperature
setpoint is 10°C, or below.
V
1-4
Model 3940 Series
Thermo Electron Corporation
Section 1
Installation and Set-Up
Remote Alarm
Contacts
Power Connection
Start-Up
Содержание 3940 Series
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