Models 3940 and 3949 _____________________________________________________________________________Service
6 - 1
4. Using a clamp-on ammeter, establish that current is
flowing in the blue wire going to the heater connectors.
Refer to Figure 5-2.
5. Proper current is about 3.6 amps. If the current is not
flowing and the humidity indicator is on, rotate the small
slotted screw in the shaft of the safety thermostat coun-
terclockwise, using a jeweler’s screwdriver, until the
current flows to the heaters.
6. Allow the steam generator to operate for about 30 min-
utes continuously. If the heaters cycle off due to the
safety thermostat, rotate the small slotted screw further
counterclockwise to maintain the heater’s operation.
7. After 30 minutes, turn the small slotted screw clockwise
very slowly until the heaters shut off.
8. Turn the slotted screwdriver 1-1/2 turns counterclock-
wise. The thermostat is now properly adjusted.
9. Replace the cabinet top and return the incubator to serv-
ice.
Section 6 - Specifications
Temperature
Control ±0.1°C @ +37°C (98.6°F)
Range 0°C (32°F) to +60°C (140°F)
Sensor RTD
Controller Digital electronic proportional
Setpoint Digital
Display Digital LED
Readability 0.1°C
Setability 0.1°C
Uniformity ±0.3°C at 25°C to 37°C with six
shelves installed*
Shelves
Standard 6
Maximum 19
Dimensions 30.62”W x 25.81”F-B
(77.78 cm x 65.56 cm)
Construction Solid stainless steel reinforced
Surface Area 5.4 sq. ft. (.51 sq. m) per shelf
Max. Per Chamber 104.3 sq. ft. (9.69 sq. m)
Clearance Adjustable on 3” (7.62 cm) centers
Loading 35 lbs. (16 Kg) (slide in and out)
50 lbs. (23 Kg) (stationary)
Construction
Volume 29 cu. ft. (823 liters)
Interior 304 2B stainless steel
Exterior Cold rolled steel
Insulation 2” (5.1cm) Foamed urethane
Outer Door Gasket Four sided vinyl compression
Finish Powder coated. Salt spray tests
exceed 1000 hrs. per ASTM
Standard B117-85
Weight
Net 800 lbs. (363 Kg)
Shipping
Motor 850 lbs. (386 Kg)
Air 940 lbs. (476 Kg)
Ocean 985 lbs. (447 Kg)
Temperature Alarm
Sensor Thermostat
Controller Thermostat
Setpoint Analog reference dial
Alarm Audible/visual
To Next Page
Loading...