SGO Series Gravity Convection Laboratory Ovens
SHEL LAB Gravity Convection Laboratory Ovens are engineered for safe, accurate, and uniform performance in demanding laboratory environments. These ovens are recommended for critical scientific and analytical use in laboratory and pilot plant product research. Available in three cabinet sizes, each model features gravity convection and reserve heating power for quick recovery after door openings.
Applications
- Aging
- Burn-in
- Drying
- Asphalt Testing
- Baking and Curing
- Moisture and Stability Testing
- ASTM, UL, and Life Testing
- Curing
- Pre-heating
- Conditioning
- Life cycle testing
Features and Benefits
- Fast ramp-up to 306°C for faster cycle times
- Temperature range approximately 20°C above ambient to 306°C for multiple applications
- Advanced PID temperature control system for sensitive response
- Built-in digital timer for automatic operation following manual start
- Independent overtemperature set-point and operational control override for additional safety
- Stainless steel interior construction for long life operation and easy cleaning
- Gravity convection to assure maximum temperature uniformity
- Triple-wall construction to minimize external surface temperature
- Stainless steel shelves adjustable on 0.5" (12.7 mm) centers to provide flexible inventory options
- Rear access port, 1.75" diameter (44mm) for independent cables and instrumentation
- Exhaust port, 1.75" diameter (44mm), adjustable, with external connection to customer-supplied vent for effluent exhaust if required
- Internationally certified CAN/CSA, UL, EN, IEC 61010, and compliant with CE
Control Panel Features
The advanced loop PID (proportional, integral, derivative) controller commands proportional power to the heating element to provide the most accurate and responsive control. Each controller is matched to the oven size to assure faster response to setpoint without overshoot, and quicker recovery following door openings. The on-board timer permits programmed dwell cycles with automatic shut-off for custom applications. Indicator lights are included for visual status feedback on critical functions.
All controls are centrally located on the main panel including:
- Manual power on/off switch
- Timer on/off switch
- Independent overtemperature control with setpoint dial
- Digital temperature setpoint data entry, 1°C increments
- Timer data entry and start/stop controls
- Indicator lights for overtemperature and heating element activation
High Temperature Performance
SGO Series ovens are available in 110-120V, 220-240V, 50/60Hz configurations and achieve temperatures up to 306°C with fast ramp-up and recovery times.
Heat-Up: Rapid heat-up times to 306°C depend on voltage selected. Published heat-up performance is based on a standard cabinet under controlled testing at a 20°C ambient temperature, line voltage ±10% of specified voltage.
Recovery: Upper vents are closed when recovery times following door openings are tested. Published recovery performance is based on a standard cabinet under controlled testing at a (22 ± 3)°C ambient temperature, line voltage ±10% of specified voltage.
DIN 12880 Compliance
SHEL LAB SGO Series ovens are designed to meet or exceed the performance criteria established through DIN 12880:2007:05 and ASTM E145-94 (Reapproved 2006). These criteria set common standards for laboratory oven performance in heat-up, temperature uniformity and door-open recovery time. Confirmation of temporal and spatial performance is achieved by testing with multi-point temperature probes strategically positioned throughout the oven chamber interior, including center point positions where stability, equilibrium, and setpoint control are required.
Specifications
| Specification |
SGO1 |
SGO3 |
SGO5 |
| Interior Volume, Nominal |
1.4 cu.ft (39.4 L) |
3.0 cu.ft. (85 L) |
4.9 cu.ft. (138 L) |
| Interior Dimensions W x D x H |
12.1" x 13.7" x 14.5"
307 mm x 349 mm x 368 mm |
16.5" x 19.5" x 16.2"
419 mm x 495 mm x 412 mm |
21" x 19.4" x 20.7"
533 mm x 494 mm x 527 mm |
| Exterior Dimensions W x D x H |
22.7" x 23.5" x 31.5"
577 mm x 596 mm x 800 mm |
26.9" x 28.6" x 34"
684 mm x 727 mm x 840 mm |
31.4" x 28.1" x 38.1"
798 mm x 714 mm x 986 mm |
| Interior Construction |
430 series stainless steel |
430 series stainless steel |
430 series stainless steel |
| Exterior Construction |
20 gauge steel, powder coated |
20 gauge steel, powder coated |
20 gauge steel, powder coated |
| Shelves |
2 (max of 6) |
3 (max of 7) |
3 (max of 9) |
| Maximum Weight Per Shelf |
50 lb (22.6 kg) |
50 lb (22.6 kg) |
50 lb (22.6 kg) |
| Permitted Total Load |
100 lb (45.3 kg) |
200 lb (91 kg) |
200 lb (91 kg) |
Electrical Specifications and Performance Data
| Specification |
SGO1 |
SGO3 |
SGO5 |
| Order Part ID |
SLG122 / SLG122-EA |
SLG322 / SLG322-EA |
SLG522 / SLG522-EA |
| Electrical |
50/60Hz, AC, 1Ø |
| Voltage |
110V-120V / 220V-240V |
110V-120V / 220V-240V |
110V-120V / 220V-240V |
| Full Load Amps |
12 / 8 |
14 / 10 |
14 / 10 |
| Nominal Power (watts @150°C) |
864 / 1152 |
1008 / 1440 |
1008 / 1440 |
| NEMA Plug Supplied |
5-15P / 6-15P |
5-15P / 6-15P |
5-15P / 6-15P |
| Temperature Range |
20°C above ambient to 306°C |
Note: Both NEMA 6-15P, 2.5M and CEE7/7 (EU1-16P), 2.5M are supplied with 220V-240V models.
Energy Consumption (kWh/day)
| Temperature |
SGO1 (110V / 220V) |
SGO3 (110V / 220V) |
SGO5 (110V / 220V) |
| At 80°C |
11.7 / 15.6 |
13.6 / 19.5 |
13.6 / 19.5 |
| At 150°C |
20.1 / 23.8 |
23.4 / 33.5 |
23.4 / 33.5 |
| At 306°C |
31.8 / 42.5 |
37.1 / 53.1 |
37.1 / 53.1 |
Heat-Up Times (Minutes from Ambient)
| Target Temperature |
SGO1 (110V / 220V) |
SGO3 (110V / 220V) |
SGO5 (110V / 220V) |
| To 80°C |
5 / 5 |
7 / 7 |
18 / 18 |
| To 150°C |
7 / 7 |
23 / 23 |
30 / 30 |
| To 306°C |
68 / 68 |
95 / 95 |
120 / 120 |
Recovery After Door Opening - 30 Seconds (Minutes)
| Target Temperature |
SGO1 (110V / 220V) |
SGO3 (110V / 220V) |
SGO5 (110V / 220V) |
| To 80°C |
2.5 / 2.5 |
3 / 3 |
4 / 4 |
| To 150°C |
3.5 / 3.5 |
4 / 4 |
8 / 8 |
| To 306°C |
18 / 18 |
24 / 23 |
35 / 36 |
Recovery After Door Opening - 60 Seconds (Minutes)
| Target Temperature |
SGO1 (110V / 220V) |
SGO3 (110V / 220V) |
SGO5 (110V / 220V) |
| To 80°C |
3 / 3 |
5 / 5 |
5 / 5 |
| To 150°C |
4 / 4 |
5.5 / 5.5 |
15 / 15 |
| To 306°C |
22 / 22 |
37 / 37 |
68 / 68 |
Temperature Uniformity (°C)
| Temperature |
SGO1 |
SGO3 |
SGO5 |
| At 80°C |
2.5 |
2.5 |
2.5 |
| At 150°C |
3.5 |
3.5 |
3.5 |
| At 306°C |
4.0 |
4.0 |
4.5 |
Site Preparation and Installation
| Specification |
SGO1 |
SGO3 |
SGO5 |
| Door Swing Clearance (Nominal) |
23" (585 mm) |
27" (686 mm) |
32" (813 mm) |
| Wall |
