Shel Lab SMO Forced Air Ovens

Overview

SHEL LAB SMO Series ovens are available in 110-120V, 50/60Hz or 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.

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. Sheldon Manufacturing, Inc. 

All controls are centrally located on the main panel including manual power and timer on/off switches, independent overtemperature control, digital temperature and timer setpoint adjustments, and indicator lights for all functions.

Features:

• 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 setpoint and operational control override for
• additional safety.
• Stainless steel interior construction for long life operation, easy cleaning.
• Forced-air circulation to assure maximum temperature uniformity.
• Triple-wall construction to minimize external surface temperature.
• Stainless steel shelves are adjustable on 0.5" (12.7 mm) centers to provide flexible inventory options.
• Rear access port, 1.75" diameter (44 mm) for independent cables, instrumentation.
• Exhaust port, 3.0" diameter (76 mm), 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. 

Key Attributes

Max Temperature	260 or 306°C
Max Capacity	1.4, 3, 4.9, 14.6, or 27.6 cu ft
Air Movement	Forced
Electrical	110-120 VAC, 230VAC
Warranty	2 years

Manufacturer Specifications

MODEL	SMO1	SMO3	SMO5	SMO14-2	SMO28-2
PART ID	SMO1	SMO3	SMO5	SLF1422-H	SLF2822-H
EXTERIOR DIMENSIONS (W × D × H)	22.7 x 23.5 x 31.5	26.9 x 28.6 x 34	31.4 x 28.1 x 38.8	39.1 x 34 x 48	39.1 x 35 x 78.3
INTERIOR DIMENSIONS (W × D × H)	12.1 x 13.7 x 14.5	16.5 x 19.5 x 16.2	21 x 19.4 x 20.7	30.8 x 24.8 x 31	30.8 x 25 x 61
VOLUME	1.4 cu.ft. (39.4 L)	3.0 cu.ft. (85.0 L)	4.9 cu.ft. (138.0 L)	14.6 cu.ft. (413 L)	27.6 cu.ft. (781 L)
SHELF DIMENSIONS (W × D)	11.9 x 13.6	16.1 x 18.8	20.6 x 18.8	30.1 x 24	30.1 x 24
UNIT WEIGHT	126.0 lbs	170.5 lbs	208.0 lbs	280.0 lbs	390.0 lbs
INTERIOR METAL	430 SST	430 SST	430 SST	430 SST	430 SST
EXTERIOR METAL	Painted Cold Roll Steel	Painted Cold Roll Steel	Painted Cold Roll Steel	Painted Cold Roll Steel	Painted Cold Roll Steel
OPERATING TEMPERATURE RANGE	Amb +20C - 306C	Amb +20C - 306C	Amb +20C - 306C	Amb +15C - 260C	Amb +15C - 260C
TEMPERATURE UNIFORMITY - MIDRANGE	2.3 °C	1.8 °C	1.8 °C	3.0 °C	3.0 °C
TEMPERATURE STABILITY - MIDRANGE	0.2 °C	0.3 °C	0.3 °C	0.4 °C	0.2 °C
CONTROLLER TYPE	Digital	Digital	Digital	Digital	Digital
DISPLAY RESOLUTION	0.1 °C	0.1 °C	0.1 °C	1 °C	1 °C
POWER VOLTAGE , FREQUENCY AND CURRENT	110-120 VAC, 50/60 Hz 12.0 Amps	110-120 VAC, 50/60 Hz 14.0 Amps	110-120 VAC, 50/60 Hz 14.0 Amps	230 VAC, 50/60 Hz 12.0 Amps	230 VAC, 50/60 Hz 20.0 Amps
SAFETY CERTIFICATIONS	UL 61010-1, EN 61010-1, CSA 61010-1, CE