Shellab SMO5CR-2 User Manual

Installation and Operation Manual SMO5CR-2 Previously designated as CR1-2 Sheldon Clean Room Oven 230 Voltage

10 | P a g e INSTALLATION (CONTINUED) LEVELING The oven must be level and stable for safe operation. Each Clean Room Oven ships with four leveli

11 | P a g e INSTALLATION (CONTINUED) SHELVING INSTALLATION The horizontal airflow within the chamber moves from the HEPA filter housing on the

12 | P a g e CONTROL PANEL OVERVIEW Figure 3: Control Panel Power Switch The main power switch on the control panel (green lighted I/O) controls

13 | P a g e CONTROL PANEL OVERVIEW (CONTINUED) Vent Valves The SMO5CR-2 comes provided with two vent valve controls on its front control panel.

14 | P a g e OPERATION OPERATING PRECAUTIONS Warning: The SMO5CR-2 is not an explosion proof unit! The oven is not designed to safely contain combu

15 | P a g e OPERATION (CONTINUED) Airflow and Applications During normal operations an internal blower fan motor pulls air in through the inta

16 | P a g e OPERATION (CONTINUED) SET THE OVER TEMPERATURE LIMIT This procedure sets the Over Temperature Limit backup system. This is typically

17 | P a g e OPERATION (CONTINUED) HEPA FILTER BURN-IN The HEPA filter must be burned in prior to its first use. The HEPA filter will fill wi

18 | P a g e OPERATION (CONTINUED) The table below shows the burn-in process as a programed heating profile for the Watlow controller in a 25°C a

19 | P a g e OPERATION (CONTINUED) CALIBRATING THE UNIT FOR YOUR APPLICATION The oven should be calibrated at the temperature set point it will

2 | P a g e Sheldon Manufacturing Oven Clean Room 230 Voltage Installation and Operation Manual Part Number (Manual): 4861580 Revision: July 28, 2

20 | P a g e OPERATION (CONTINUED) Note: The accuracy of the calibration process is limited by the accuracy of your reference temp

21 | P a g e OPERATION (CONTINUED) CLOSED VENTS The oven can be run with the exhaust vent closed if required for your application or process. How

22 | P a g e OPERATION (CONTINUED) PROGRAMMED OPERATIONS The Watlow controller can hold four (4) ten-step heating profiles. Additionally, profi

23 | P a g e OPERATION (CONTINUED) Activating and Deactivating the Power Exhaust To activate the power exhaust as part of a heating profile step,

24 | P a g e USER MAINTENANCE Warning: Prior to any maintenance or service on this unit, disconnect the power feed from the power supply. Avertiss

25 | P a g e MAINTENANCE (CONTINUED) DOOR LATCH AND ELECTRONICS Periodically, inspect the door latch, trim, catch, and gasket for signs of dete

26 | P a g e MAINTENANCE (CONTINUED) REPLACING THE HEPA FILTER ASSEMBLY To replace the HEPA filter assembly, it is necessary to remove or at least

27 | P a g e MAINTENANCE (CONTINUED) 6. Loosen but do not remove the six (6) mounting bracket screws on the right air duct. a. This c

28 | P a g e UNIT SPECIFICATIONS The SMO5CR-2 is a 230 voltage unit. Please refer to the oven’s data plate for individual electrical specifications

29 | P a g e UNIT SPECIFICATIONS (CONTINUED) TEMPERATURE All temperature performance data for 25°C ambient conditions Range Uniformity Stability A

3 | P a g e TABLE OF CONTENTS General Safety Considerations ...

30 | P a g e REPLACEMENT PARTS Description Parts Number Adjustable Feet SMO5CR-2 2700512 Chamber Gasket Silicone (unit is per foot, requires 8 f

4 | P a g e INTRODUCTION Thank you for purchasing a Sheldon Manufacturing Clean Room Oven. We know that in today’s competitive marketplace, custo

5 | P a g e INTRODUCTION (CONTINUED) ENGINEERING IMPROVEMENTS Sheldon Manufacturing continually improves all of its products. As a result, enginee

6 | P a g e RECEIVING YOUR OVEN Before leaving our factory, all Clean Room Ovens are packaged in high-quality shipping materials to provide protect

7 | P a g e Figure 1: Orientation Photo RECEIVING (CONTINUED) ORIENTATION Back Panel Fuse Holders External Power Outlet Nitrogen Gas Inlet

8 | P a g e GRAPHIC SYMBOLS The oven is provided with multiple graphic symbols on its external and internal surfaces. The symbols identify hazards

9 | P a g e INSTALLATION Installation of an SMO5CR-2 requires permanent connect wiring (commonly known as hardwiring), and must be performed by