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DE20 Instruction Manual

TABLE OF CONTENTS

DE20 Digital Temperature Control

7010 Lindsay Drive • Mentor, Ohio 44060 • Phone: 440-974-1300

USA/CN: 800-621-1998 • Fax: 440-974-9561 • www.process-technology.com

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
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.................................................9
Frequency Signal Calibration.....................................10

Configuration (Setup)....................................................10
Main Menu Summary.....................................................10
Sensor Type (U1).............................................................11
Signal Offset (U2)...........................................................11
Signal Filter Setting (U4)..................................................11
Set Point Dead Band (U5) .........................................12
Display Stabilizer (U8)...................................................12
Set Point Limit (L)..........................................................12
Heating or Cooling Switch (F2).....................................12
Alarm On/Off Switch (F3)..............................................13
Unit Display Enable (F4)..................................................13
Temperature Units Conversion (F5)............................13
Sensor DIP Switch Settings........................................13
Electrical Noise and Interference.................................13
Illustration of a Typical Heater Installation in a
Process Tank ...................................................................14

M-33-01-02  02/17/11

Summary of Contents for DE20

Page 1: ...stance Signal Calibration 7 3 Wire RTD Calibration 7 Thermocouple Calibration 8 Voltage Signal Calibration 8 Current Input Calibration 9 Frequency Signal Calibration 10 Configuration Setup 10 Main Men...

Page 2: ...0 to 1000 F 40 to 538 C F or C field selectable Set Point Range Selectable throughout the input range De energize control output No sensor short protection with Thermocouple sensor Accuracy 0 25 span...

Page 3: ...Using the wiring dia gram supplied with the controller install the required input and output wires Use National Electric Code and local codes for determining wire sizing insula tion terminations etc 3...

Page 4: ...Sensor Number represents degrees Celsius or Fahrenheit as determined by the F5 setting Voltage Sensor Number represents tenths of a volt 0 1 VDC Current Sensor Number represents hundredths of milliam...

Page 5: ...higher than the set point setting on the control During the alarm condition the control relay will de energize the set point relay and flash AAA on the display After enabling this feature you may vie...

Page 6: ...ugh the list of settings to those needing modification 10 Configuration To adjust a setting while in the Configuration Mode use the increase decrease buttons to bring the particular setting into the v...

Page 7: ...trician s gloves whenever power is on Calibration procedure for voltage signal Step 1 Turn OFF all power Step 2 Remove rear cover Step 3 Remove sensor Step 4 Install the voltage calibrator to terminal...

Page 8: ...standard set of values is cor rect do the following THERMOCOUPLE NEGATIVE POSITIVE 7 Optional Item Number 5415 board needed The configuration and calibration procedures used for measuring pure resista...

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