Despatch RBC1-50 with Protocol Plus Manual de usuario

RBC1RBC1RBC1RBC1----50505050 INSTRUCTION MANUALINSTRUCTION MANUALINSTRUCTION MANUALINSTRUCTION MANUAL

6Temperature RBC1-50 Air Atmosphere RBC1-50 Nitrogen Atmosphere Time to Temperature 25°C - 80°C (approximate minutes

7Power Line voltages may vary in some geographical locations. If your line voltage is much lower than the oven voltage rating, warm up time will

8THEORY OF OPERATION Despatch RBC1-50 Burn-In ovens are made for the accelerated life testing of microcircuit electronic devices to identify early

9Power Switch The POWER switch controls power to the control circuit, chamber recirculating fan motor relay, control cabinet fan, and any options t

10Chamber Door Handle The door handle positively engages a cam with a catch in one-quarter turn. The silicone rubber gasket provides a seal around

11Full Open Position When the fresh air damper is in the full open position, the chamber will operate at its minimum operating temperature. Fric

12NOTE: Overpressurizing the chamber can cause hot air to blow out around the door seal and cause the area around the door to be hot to the touch.

13OVEN INSTRUCTIONS Failure to heed warnings in this instruction manual and on the oven could result in death, personal injury or property damage.

14Warning Signs Missing If it appears that any warning, danger, caution or information label or sign has been damaged or lost, contact Despatch Ind

15Set-up 1. Select the location for installing your oven. 2. Install an exhaust stack from the exhaust discharge stack to the outside of the bui

Dear Customer, Thank you for choosing Despatch Industries. We appreciate the opportunity to work with you and to meet your heat proce

16Power Connection Be sure the oven is connected to the power source shown on the nameplate. Connect the oven directly to your electric supply, wi

17Operating Users and operators of this oven must comply with operating procedures and training of operating personnel as required by the Occupati

18Oven Temperature Limit Do not attempt to exceed the maximum or minimum operating temperature of this oven. Product Temperature Limit If the pro

19Pre-Startup Checklist • Know the system. Read this manual carefully. Make use of its instructions and explanations. Safe, continuous, satisf

205. If temperature of the chamber exceeds the high-limit setting on the control, the heater will shut down and the Alarm Horn and red pilot light

21 Maintenance Do not attempt any service on this oven before opening the main power disconnect switch. Checklist • Keep equipment clean.

22 Inspection and Cleaning The purpose of inspection is to determine cleanliness, proper operation and condition of the oven, including its controls

23 Chamber Door Gasket Check the gasket on the chamber door as follows. 1. Open the door. 2. Visually inspect the gasket-sealing surface. 3.

24 Automatic Damper 1. Put the oven in operation (without a load in the chamber) and wait until the temperature is stabilized. 2. Set the control

25 Tests Tests should be performed carefully and regularly. The safety of personnel as well as the condition of equipment may depend upon the prop

26 OPTIONAL ACCESSORIES This section provides operating instructions on the standard options for the RBC1-50 Burn-In oven. Door Switch The door

27 • The heater should be back on and the chamber should be functioning correctly. If the high-limit trips repeatedly, verify the cause of overte

28 Replacement Parts To order or return parts, contact the Service Products Division at Despatch. The Service Products Division features our R

29 Operator Training Requirements Users and operators of this oven must comply with operating procedures and training of operating personnel as req

30 11. When the chamber temperature is above setpoint on control, the cooling output of the control will start cycling the liquid nitrogen (LN2) s

31 Nitrogen Atmosphere Purge Rate The chart below shows the time required to reduce the oxygen content to different percentages of concentration.

32 Maintain Rate The chart below shows typical flow rate required to maintain the oxygen content at different percentages of concentration in the R

33 Troubleshooting Equipment, which operates for extended lengths of time, may develop problems. Below are possible problems and suggested soluti

34 Difficulty Probable Cause Suggested Remedy Improper airflow Fan motor failure Fan wheel seated too low on fan shaft Unbalanced fan wheel Re

35 Circuit Board Check The circuit board mounted on the control panel has three status LED indicators to help troubleshoot if the oven is not heati

1PREFACE This manual is your guide to the Despatch oven. It is organized to give you the information you need quickly and easily. The INTRODUCTIO

2TABLE OF CONTENTS PREFACE ...

3Automatic Damper... 24 Controls and Indicators...

4INTRODUCTION This instruction manual covers the operation and maintenance of the Despatch RBC1-50 Burn-In oven. Special Features The sturdy co

5Specifications Dimensions Model Chamber Size in (cm) Capacity feet3 (liters) Overall Size in (cm) W D H W D H RBC1-50 18 (46) 25 (