Specifications .................................................................. 1
General Description ............................................................................ 2
Installation Procedure ......................................................................... 2
Overtemperature Protection .............................................................. 3
Set Point & Features ........................................................................... 4
Alarm Feature ...................................................................................... 4
Error Conditions ................................................................................... 4
Error Messages ................................................................................... 4
Power and Relay Wiring .................................................................... 5
Calibration ............................................................................................. 6
2 Wire RTD Sensor Calibration ........................................................ 6
Resistance Signal Calibration ........................................................... 7
3 Wire RTD Calibration ...................................................................... 7
Thermocouple Calibration ................................................................. 8
Voltage Signal Calibration .................................................................. 8
Current Input Calibration ................................................................. 10
Frequency Signal Calibration ......................................................... 10
Configuration (Setup) ....................................................................... 11
Main Menu Summary...................................................................... 11
Sensor Type (U1) ............................................................................. 12
Signal Offset (U2) ............................................................................. 12
Signal Filter Setting (U4) .................................................................. 12
Set Point Dead Band (U5) .............................................................. 13
Display Stabilizer (U8) ...................................................................... 13
Set Point Limit (L) .............................................................................. 13
Heating or Cooling Switch (F2) ...................................................... 13
Alarm On/Off Switch (F3) ................................................................ 14
Unit Display Enable (F4) ................................................................. 14
Temperature Units Conversion (F5) ............................................. 14
Sensor DIP Switch Settings ........................................................... 14
Electrical Noise and Interference ................................................... 15
Illustration of a Typical Heater
Installation in a Process Tank ......................................................... 15
7010 Lindsay Drive • Mentor, Ohio 44060 • Phone: 440-974-1300
USA/CN: 800-621-1998 • Fax: 440-974-9561 • www.processtechnology.com
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DE20 / T-DE20 Instruction Manual
TABLE OF CONTENTS
DE20 / T-DE20 Digital Temperature
Control
