User Manual Precision Compact Ovens with Mechanical Convection Operating and Parts LIst LTM1881X1 Rev. 3 Visit us online to register your warranty www.thermoscientific.com/labwarranty

Models covered in this manual Models Added lift warning, fuse ratings, open container and humidity cautions Added installation ventilation distances needed - pg 3-2 Added explosion and fire warning Thermo Scientific Compact Mechanical Convection Ovens

CAUTION Contains Parts and Assemblies Susceptible to Damage by Electrostatic Discharge (ESD) Important Read this instruction manual. Failure to read, understand and follow the instructions in this manual may result in damage to the unit, injury to operating personnel, and poor equipment performance. s Caution All internal adjustments and maintenance must be performed by qualified service personnel. s Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice. Thermo Fisher Scientific makes no representations or warranties...

Important operating and/or maintenance instructions. Read the accompanying text carefully. Potential electrical hazards. Only qualified persons should perform procedures associated with this symbol. Lifting hazard warning. The incubator weighs more than 100 lbs. Take adequate safety measures when moving this device. Equipment being maintained or serviced must be turned off and locked off to prevent possible injury. Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be damaged by elevated temperatures. WEEE Compliance: Thermo Fisher Scientific has contracted...

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Table of Contents Section 1 Section 2 Unpacking and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 Shelving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 Be Advised . . . . . . . . . . . . . . . ....

Thank you for selecting Thermo Scientific products for your equipment needs. Thermo Scientific Precision Compact Ovens with mechanical convection are designed for use in industry, hospitals, school laboratories; wherever there is a need for economical and reliable ovens for drying, sterilizing, baking, evaporating and similar type work. A hydraulic thermostat provides reliable temperature control with a range from 56C above ambient to 210°C. A sheathed heater is positioned in the bottom of the chamber along with a constant-speed fan that circulates heated air rapidly throughout the chamber. The...

Power Requirement Model PR305225M: . . . .120 Volts, 50/60 Hz, 10 Amps, 1200 Watts; Fuse Rating:Type FLM 15 amp slo-blo Model PR305220M, PR305220MCN: . . . . .240 Volts, 50/60 Hz, 5 Amps, 1200 Watts; Fuse Rating: Type FLM 8 amp slo-blo Overall Dimensions 18-7/16"W x 13-9/16"D x 25"H (47 x 40 x 64 cm) Chamber Dimensions 16"W x 11½" D x 16-1/8"H (41 x 29 x 41 cm) Volume 1.7 cu. ft. (48.1 liters) Shipping Weight 65 lbs. (30 kg) Performance Characteristics Temperature Range . . . .. .All models ambient +5°C to 210°C Thermostat Control . . . . . . . .±5% over entire range Thermometer, Digital . ....

The shipping carton should be inspected upon delivery. When received, carefully examine for any shipping damage before unpacking. If damage is discovered, the delivering carrier should both specify and sign for the damage on your copy of the delivery receipt. Open the carton carefully, making certain that all parts are accounted for before packaging materials are discarded. After unpacking, if damage is found, promptly report it to the carrier and request a damage inspection promptly. Have sufficient personnel available to lift the unit into place, using proper lifting techniques according to...

Section 3 Unapcking and Installation The oven should be located in an area free from drafts and sources of heat, as well as allowing for natural air movement to dissipate heat from the oven. To ensure needed ventilation around the oven, allow 1.5 inches on each side and 3 inches at the back. Allow enough distance above the unit to be able to install and retrieve the thermometer. The oven should be on a level surface, in order to facilitate movement of materials into and out from the chamber. Slide shelves into place inside the oven and position according to the height required for the items or...

HI-LIMIT TEMPERATURE TEMPERATURE CONTROL Figure 4-1. Control Panel 1. POWER SWITCH: Turns unit on (green status lamp lights) and off. 2. HI-LIMIT STATUS LAMP: Lights when the hi-limit thermostat is activated. It goes out when oven reverts to a safe operating range. 3. CALIBRATION POTENTIOMETER: Utilizing a jeweler's screwdriver, the temperature readout can be adjusted. 4. LED DISPLAY: Displays current chamber temperatures. 5. TEMPERATURE CONTROL (THERMOSTAT): Raises and lowers temperatures. 6. HEATERS STATUS LAMP: Lights when heaters are energized. Warning Do not use in the presence of flammable...

Temp Control (Thermostat) Refer to Figure 4-1 for the procedure below. 1. With the temperature control thermostat (5) in the extreme counterclockwise position, turn the power (rocker) (1) to its On position. (Switch's green status lamp will light.) 2. Turn the temperature control thermostat (5) in clockwise direction to increase the temperature and counterclockwise to lower it. The amber status lamp (6) above the thermostat goes on when the heaters are energized. Wait for the chamber temperature to stabilize before advancing thermostat too rapidly to reach target temperature. Note that dial setting...