RAD 1-42-2E WITH PROTOCOL PLUS ™ INSTRUCTION MANUAL C-192 PN 146297 REVISION N 3/2009
2 Specifications Dimensions Model Chamber Size in (cm) Capacity feet3 (liters) Overall Size in (cm) Maximum Number of Shelf Positions W D H W D H
3 Temperature Model RAD 1-42-2E Time to Temperature 25 C - 100 C (approximate minutes with 25 C - 200 C no load) 25 C - 343 C 6 21 56 Recovery Ti
4 Power Line voltages may vary in some geographical locations. If your line voltage is much lower than the oven voltage rating, warm up time will b
5 THEORY OF OPERATION This section details the function and operation of assemblies and subassemblies on the Despatch RAD1-42-2E Ovens. These ovens
6 Damper Control The oven is equipped with a manually adjustable damper mechanism. The damper control arm is located on the left side of the oven.
7 Full Open Position When the fresh air damper is in the full open position, the chamber will operate at its minimum operating temperature. Fricti
8 OVEN INSTRUCTIONS The INSTRUCTIONS section provides directions for unpacking, installation, operation and maintenance of the RAD1-42-2E oven. Un
9 Set-up 1. Select the location for installing your oven. 2. If required, an exhaust stack should be installed with the exhaust discharge stack
10 Operating Users and operators of this oven must comply with operating procedures and training of operating personnel as required by the Occupatio
11 Loading the Oven Despatch Industries cannot be responsible for either the process or process temperature used, or for the quality of the product
Thank you for choosing Despatch Industries. We appreciate the opportunity to work with you and to meet your heat processing needs. We believe th
12 Pre-Startup Checklist Know the system. Read this manual carefully. Make use of its instructions and explanations. Safe, continuous, satisfac
13 CONTROL The special features of the Protocol PlusTM control include: PID tuning Ramp/Soak programming of up to 64 segments Segment looping
14 Protocol Plus Faceplate and Wiring Diagram
15 Operating Modes The Protocol Plus control has five modes of operation available: Stopped Mode: All control and relay outputs are off. Stopped M
16 High Limit The control has an integrated high limit function which will disable the heater output when tripped. If the high limit does trip, the
17 Displays The Protocol Plus control has two displays. A dedicated LED upper display shows the oven temperature. A two-line LCD lower display provi
18 Outputs The Protocol Plus control has seven different outputs available. Heating output: The control output is a DC voltage open-collector out
19 Relay (Continued) Use the Relay Card Optional Ay p/n 144562 to add relays to the standard controller. Each relay card contains two relays (maximum
20 INSTRUCTIONS Start-Up These instructions are provided as a quick reference for operating the Protocol Plus control. If the Profile Mode is to be
21 Operation Manual Mode Press the Select key until Manual is displayed (note you can press the Run key at any time to activate Manual Mode). 1.
22 Timer Mode 1. Press the Select key until Timer is displayed (note you can press the Run key at any time to activate Timer Mode). 2. Press the
23 Profile Mode 1. Press the Select key until Profile is displayed. “None” may be displayed if a profile has not been selected or no profiles ente
24 Note that once you activate Auto Start, you can continue to use all operating modes as normal. If an operating mode is running at the time of a p
25 Instructions for Setup Mode Pages Program Page Programming of the profiles is provided on the Program Page. Eight profiles are available with up
26 Menu Item Display Description Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time Ramp time for segment 1 of profile Event 1 Set Value* Pro-1 Seg-1 Ramp Event
27 Profile # There are eight profiles available. Segment# Recipe segments 1 through 8 may be programmed, each with its own set of events, ramp and
28 Sample Profile Programming Table Profile Number____1______ Profile Name__________ Seg-ment Ramp Soak Time Events Temp-erature Time Events 1
29 Auto Start Page The Auto Start Page can be configured to automatically start Manual, Timer or Profile Mode at a specified time and day. Note that
30 Menu Item Display Description Range Enable Autostart Auto Start Enable Enable (yes) or disable (no) the Autostart function No, Yes Sunday mode Aut
31 PID Page The PID Page contains parameters which control the response to the setpoint and process variable input. To access the PID Page, enter th
32 Control Page The Control Page contains various parameters which control miscellaneous functions. To access the Control Page, enter the Setup Mode.
33 Communication Page (optional) The Communication Page contains parameters for the communications feature. To access the Communications Page, enter
34 Relay Outputs Page (optional) The Relay Outputs Page configures the four alarm/event outputs. Each output has a dedicated indicator light and can
35 Test Page The Test Page contains parameters which allow manual control of the heat control and optional relay outputs and should be used only for
36 Zone Calibration Page The Zone Calibration Page allows adjustment of the displayed temperature versus the actual temperature measured by the contr
37 As an example, the control is displaying 400°F with the setpoint being 400°F, but the center of the oven chamber is actually 395°F. This can occur
38 Sensor Calibration Page The Sensor Calibration Page has parameters which can change the internal calibration of the temperature sensor input signa
39 20. Connect a voltage measurement device to the retransmit output terminals. 21. Set the calibration instrument output to the temperature value
40 Enable Page The Enable Page controls access to the other Setup Pages. The setpoint minimum and maximum values, and the security passwords are also
41 Digital Inputs (optional) The Protocol Plus control can be run by external inputs wired to the control from an external source such as a PLC or co
i PREFACE This manual is your guide to the Despatch oven. It is organized to give you the information you need quickly and easily. The INTRODUCTION
42 Error Messages and Alarms The Alarm Status Hi-limit LED is flashing. This indicates a problem with the thermocouple, or the Hi-limit setpoint has
43 Quick Reference and Default Values Program Page Menu Item Display Default Range Setting Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time 00:00 00m00s to 99h5
44 Programming Table Profile Number__________ Profile Name__________ Seg-ment Ramp Soak Time Events Temp-erature Time Events 1 2 3 4 1 2 3 4 1
45 Autostart Menu Item Display Default Range Setting Enable Autostart Auto Start Enable No No, Yes Sunday mode Auto Start Sun Mode Off Off, Manual, T
46 Control Menu Item Display Default Range Setting Cycle Time Control Cycle Time 1 1 to 60 seconds High limit setpoint Control Hi-Lim SP Max HiLimSP
47 Real Time Clock Menu Item Display Default Range Setting Day of the week Clock Day Mon Sun, Mon, Tue, Wed, Thu, Fri, Sat Time of day Clock HH:MM 00
48 Test Menu Item Display Default Range Setting Heater output Test HeatOut Off On High limit relay Test HiLimOut Off On Relay 1 output Test Rly1 Out
49 Enable Page Menu Item Display Default Range Setting Profiles Enable Profile 1-8 Yes Yes or No Autostart Enable Auto Start No Yes or No ** PID Ena
50 Technical Specifications UL, cUL listed: UL file E136675 CE compliance to: EMC Directive 89-366/EEC European Standard EN55011/1991 European
51 MAINTENANCE WARNING: Do not attempt any service on this oven unless the main power disconnect switch is opened. Checklist Keep equipmen
ii Revision B: Drawings added Revision C: Drawings updated Revision D: Preface modified “Operating Environment” note added to Operating se
52 Tests Tests should be performed carefully and regularly. The safety of personnel as well as the condition of equipment may depend upon the proper
53 Replacement Parts To order or return parts, contact the Service Products Division at Despatch. The Service Products features our Response Cente
54 Protocol Plus™ Instrument (Tools needed: 1/4" socket driver with #1 bit, #2 Phillips screwdriver) 1. Disconnect the power. 2. Unplug all
55 Fan Motor (Tools needed: Screwdriver, 5/32 inch Allen wrench, one quarter (¼) inch socket set) 1. Remove the left and right inside walls. 2
56 TROUBLESHOOTING Equipment which operates for long periods of time may develop problems. Below are possible problems and suggested solutions. If
57 Difficulty Probable Cause Suggested Remedy Excessive vibration Dirty fan wheel Unbalanced fan wheel Clean fan. Replace fan wheel. Oven will not
58 DRAWINGS Electrical drawings for the RAD/RFD series are found on the next six pages.
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iii TABLE OF CONTENTS PREFACE ...
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65 APPENDIX Temperature Scale Conversion (C/F) The Protocol Plus controller can be operated in either C or F. The default setting for the controlle
66 Optional MRC5000 Recorder Setup The temperature is retransmitted to the Recorder from the Controller. Set up the Recorder as follows: 1. Make s
iv Auto Start Page ....... 29 PID Page ...
1 INTRODUCTION This section provides an overview of the Despatch RAD Series forced air oven. The RAD Series Ovens have the most effective heat dist
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