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Summary of Contents for Kobold TDD-153 series
- Page 1 KOBOLD TDD Series Digital Temperature Switch TDD-153 and TDD-353 Series User Instructions KOBOLD Instruments Inc. 1801 Parkway View Drive Pittsburgh PA 15205 Phone (412) 788-2830 • Fax (412)-788-4890 • www.koboldusa.com Manual-TDD_8-01...
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Page 3: Table Of Contents
Table Of Contents KOBOLD TDD Series Digital Temperature Switch General ..........1 Specifications . -
Page 5: General
General The KOBOLD TDD Series is a solid state, electronic temperature switch which employs a Pt-100 RTD as the heart of the sensing system. The measuring probe and housing are constructed of 316L stainless steel providing excellent corrosion resistance. The TDD’s microprocessor based electronics allow the user to program a setpoint, adjust switching hysteresis, dampening and switch logic. - Page 6 Table 2.1 Part Number Identification TDD = Compact Electronic Temperature Switch = PNP transistor switch Output Type = NPN transistor switch = 1/2” NPT Fitting = 3/4” NPT Range = 0 to 250°F = -20 to 120°C TDD - 353 - N4 - F2 Example FM Rev.
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Page 7: Mechanical Installation
Diagram 2.1 Dimensions Dimensions in inches unless otherwise noted 1.75 Std. connector M-12 x 1 1.89 41 mm 1/2” NPT 2.76 3/4” NPT 2.78 Mechanical Installation The following general installation instructions and precautions must be followed to insure proper, reliable switch operation: 1. -
Page 8: Electrical Installation
Electrical Installation The following electrical installation instructions and precautions must be followed to insure proper switch and analog output operation. Failure to follow these instructions may result in irreparable damage to the switch: 1. The unit employs an open collector NPN or PNP transistor switch. To verify which model you are installing, check the model number codes in Section 2.0, Specifications. -
Page 9: Operation
Operation Diagram 5.1 Displays and Controls Hold for 3 seconds Sw itch Status LED to enter program ming O n = Temperature A bove Setpoint menu. Press to step O ff = Tem perature Below Setpoint through menu Press to enter a m enu program ming branch, or change a display value Programming Functions... -
Page 10: Diagram 5.3 Sequence To Change A Value
5.1.1 Changing Values in Setup Mode When in the Setup Mode the actual values of setpoint, hysteresis, switch logic and other functions are adjusted as required by the user. From the main menu (e.g. switching point “SPo”), press the “ ” button to adjust that functions value. The following diagram shows the sequence of steps required to change a value: Diagram 5.3 Sequence to Change a Value Press “... -
Page 11: Diagram 5.4 Programming Flowchart
5.1.2 Programming Flow Chart Diagram 5.4 Programming Flowchart 3 s e c E n t e r C o d e ( E n t e r C o d e ) S e t p o i n t C h a n g e V a l u e H y s t e r e s i s C h a n g e V a l u e... -
Page 12: Programming Menu Item Descriptions
Programming Menu Item Descriptions After the “ ” Button is depressed for three seconds to enter the setup mode, and the lockout code is entered (if lockout is enabled), the programming menu may be accessed. Diagram 5.3 provides a flowchart of the programming menu. Section 5.1.1 and diagram 5.2 provide details on how to change the value of each menu item parameter. - Page 13 5.2.4 duo - Window Point This menu item allows the user to set a value above the switchpoint such that a temperature band, or window can be monitored. Note: The duo value must be a positive number and it must be a larger value that the SPo value.
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Page 14: Maintenance
actual system temperature changes and process the temperature change signals without filtering. This greatly enhances the switch’s response time when the filtering function is being used. 5.2.6 Con - Switch Logic This menu item allows the user to select the output switch logic as either normally closed (nc), or normally open (no): Normally Open: Switch activates when measured temperature is above the... - Page 15 CAUTION PLEASE READ THE FOLLOWING WARNINGS BEFORE ATTEMPTING INSTALLATION OF YOUR NEW DEVICE. FAILURE TO HEED THE INFORMATION HEREIN MAY RESULT IN EQUIPMENT FAILURE AND POSSIBLE SUBSEQUENT PERSONAL INJURY.
- Page 16 • Make a Fail-safe System: Design a fail-safe system that accommodates the possibility of switch or power failure. In critical applications, KOBOLD recommends the use of redundant backup systems and alarms in addition to the primary system. FM Rev. 8/6/01...
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