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Summary of Contents for Thermo Scientific 3051 Series
- Page 1 Precision Standard Ovens 3051 Series Operating Manual and Parts List LT2034X2 Rev. 0 _________________________________________________________________________________ Part of Thermo Fisher Scientific...
- Page 2 PR305160G (6913) 5 cu ft (Large) 240V PR305160GCN (6914) 5 cu ft (Large) 240V PR305165G (6915) 5 cu ft (Large) 120V MANUAL NUMBER LT2034X2 (7006907) 7/23/10 Transfer to Marietta (was LT2034x2 4/8/09) ECR/ECN DATE DESCRIPTION Thermo Scientific Precision Standard Oven...
- Page 3 Thermo Fisher Scientific makes no representations or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual. ©2010 Thermo Fisher Scientific. All rights reserved. Precision Standard Oven Thermo Scientific...
- Page 4 Always use the proper protective equipment (clothing, gloves, goggles, etc.) 4 Always dissipate extreme cold or heat and wear protective clothing. 4 Always follow good hygiene practices. 4 Each individual is responsible for his or her own safety. Thermo Scientific Precision Standard Oven...
- Page 5 We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products. Whatever Thermo Scientific products you need or use, we will be happy to discuss your applications. If you are experiencing technical problems, working together, we will help you locate the problem and, chances are, correct it yourself...over the telephone without a service...
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Page 6: Table Of Contents
Schematic ..........8-2 Thermo Scientific... -
Page 8: Introduction
Introduction Section 1 Thermo Scientific Precision 3051 Series Standard ovens are available in three sizes: Small, Medium and Large. All ovens provide analog, on/off control at operating temperatures ranging from 50°C (122°F) to 225°C (437°F). Inlet air enters through a port located under the oven floor. Heat- generated convection then gently moves the air in a vertical circulation pattern. -
Page 10: Specifications
Large ovens 120 minutes Air Exchanges Small ovens 24 per hour Medium ovens 16 per hour Large ovens 12 per hour BTU/hr Output @100°C @200°C Small ovens 470 1325 Medium ovens 1040 2025 Large ovens 1150 2040 Thermo Scientific Precision Standard Oven... - Page 11 Operating: 17°C to 27°C; 20% to 80% RH, non-condensing. Installation Category II (overvoltage) in accordance with IEC 664. Pollution Degree 2 in accordance wth IEC 664. Altitude Limit: 2,000 meters. Storage: -25°C to 65°C 10% to 85% relative humidity (RH) Precision Standard Oven Thermo Scientific...
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Page 12: Installation
Thermo Scientific Precision ovens are shipped in a single carton. After unpacking, locate each item shown in the list below. Report any missing items, by name and part number, to your Thermo Scientific distributor. In the event of shipping damage, retain the shipping material and file a claim with the final carrier. -
Page 13: Power Switch
If greater accuracy is required the user may require a standard laboratory calibration (see Calibration section). Power Switch The 3051 Series ovens feature a front panel mounted power switch which is a combination power switch and circuit breaker, eliminating the need for separate fusing. The circuit breaker will interrupt power in the event of an oven heater malfunction. -
Page 14: Controls
Controls Section 4 The 3051 Series controller features three LEDs which indicate, respectively, that power is being applied to the oven heaters, an alarm condition exists or that oven power is on. A temperature dial, marked in 10° increments, serves to set the oven temperature. -
Page 16: Operation
Operation Section 5 The 3051 Series ovens maintain a set temperature until that set temperature is changed. To achieve a set temperature, simply perform the following: 1. Rotate the temperature dial full counter-clockwise. 2. Place the power switch in the ON position. The Power indicator will come on. -
Page 17: Limit Alarms
Use of heater cover as a shelf may result in fire. Limit Alarms The 3051 Series controllers feature a deviation alarm which alerts the operator and interrupts heater power whenever the actual oven temperature differs from the set temperature by more than 5°C. This set limit cannot be adjusted by the operator. -
Page 18: Calibration
Section 5 Operation Calibration The 3051 Series controllers are factory calibrated near the center of the oven's operating range and will usually remain reasonably accurate over a long period of usage. However, should the accuracy diminish with time, or should the user require greater accuracy at a particular temperature setting, the controller may be recalibrated. - Page 19 14. Replace temperature dial knob with pointer at 200°C, then tighten setscrew, again being careful not to rotate the dial shaft. 15. Set the temperature dial to 180°C. The Alarm indicator should come on if calibration is correct. Precision Standard Oven Thermo Scientific...
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Page 20: Service
Service Section 6 The following sections describe procedures for servicing the 3051 Series ovens. Most users may perform the first procedure, replacing the Door Gasket. However. All other service procedures involve potential exposure to line voltage. Only qualified service personnel should undertake these procedures. -
Page 21: Replacing The Door Gasket
Understanding will avoid confusion later in this process. Gasket Precision 3051 Series ovens incorporate a durable, silicone door gasket to minimize heat loss. Should the gasket become defective or be damaged, it may be replaced by following the procedure below. -
Page 22: Adjusting The Door Cam
4. Adjust inside nut (one full-turn counter-clockwise draws door 1/16 inch closer to cabinet when door is closed. 5. Secure cam tongue in place by tightening outside nut. 6. Secure latch cover in place with 2 screws. Thermo Scientific Precision Standard Oven... -
Page 23: Replacing The Heater
Figure 6-1. Heater Components 3. Remove the heater cover by lifting and sliding it forward. It may be necessary to use a flat-blade screwdriver to assist in lifting the cover upward. Set heater cover aside. Precision Standard Oven Thermo Scientific... -
Page 24: Replacing The Controller
11. Install replacement controller by generally reversing the steps above. Note When replacing the temperature dial, first rotate the dial shaft full counterclockwise. Then replace knob with pointer at the 20° mark. Thermo Scientific Precision Standard Oven... -
Page 25: Replacing The Control Thermocouple
Calibration, more adjustment is needed on the on the HI range potentiometer, set the sensor so only 1/8" is over the oblong hole. 15. Slide lower shelf back and reinstall the safety shield. Fasten shield under screws that attach the heater cover. Precision Standard Oven Thermo Scientific... -
Page 26: Troubleshooting
Set temperature has been changed to a value less Wait for actual temperature to cool to the set than the actual temperature minus the alarm limit temperature. Alarm LED stays on and control is higher than set temperature Defective controller Replace controller Thermo Scientific Precision Standard Oven... -
Page 28: Replacement Parts
Small ovens SPN 101908 Medium ovens SPN 101909 Large ovens SPN 101910 Circuit Breaker Single Pole (120V) SPN 95765 Double Pole (240V) SPN 95786 Door Assembly Small ovens DR2034X8 Medium ovens DR2033X8 Large ovens DR2032X8 Thermo Scientific Precision Standard Oven... -
Page 29: Schematic
PCX130 SWITCH 95765 95786 TC "K" TYPE OVEN BEZEL GRN/YEL BLK/WHT HEATER LINE LINE 110V (120V) TEMPERATURE 220V (240V) LINE CONTROLLER (CTRL) GRN/YEL F1 FUSE SAFETY NEUTRAL 2 POLE ON 240V MODELS ONLY 120V ONLY Precision Standard Oven Thermo Scientific... - Page 30 Thermo Scientific 401 Millcreek Road Marietta, Ohio 45750 United States www.thermofisher.com...
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