Despatch MIC 1422

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FIGURE 1-1

Keys and Indicators

1.5 Process Variable/Setpoint Value Re-Transmission Output

If the instrument is specified with this option, this output may be scaled over any

desired range and re-transmitted.

Main Page

Table of Contents3
Section 1: Product Description5
General5
Displays6
Control6
Alarms6
Process Variable/Setpoint Value Re-Transmission Output7
Section 2: Installation and Wiring9
Mounting9
Wiring Guidelines11
Installation Considerations11
AC Power Wiring12
Wire Isolation12
Use of Shielded Cable12
Noise Suppression at the Source13
Sensor Placement (Thermocouple or RTD)14
Input Connections16
Output Connections21
Section 3: Operation25
Control Capability25
Control Responses25
Direct/Reverse Operation of Outputs26
On-Off Control26
Time Proportioning Control26
Current Proportioning Control27
Power up Procedure29
Keypad Operation29
Front Panel Indicators30
Section 4: Control Mode31
Operation31
Active Setpoint31
Override Feature32
Alarm Status Display32
Over-Range I Under-Range Display32
Manual Control (Percent Output)33
Setup Modes34
Section 5: Tune Mode35
Tune Mode Description35
Manual Tuning Method36
Section 6: Alarm Mode39
Alarm Mode Description39
Loop Alarm Enable44
Loop Alarm Time44
Logical Combination of Alarms45
Section 7: Test Mode47
Test Mode Description47
Section 8: Configuration Mode49
Configuration Mode Description49
Hardware Definition Code52
Section 9: Calibration Mode55
Entering Calibration Mode55
Calibrating the Universal Input55
Calibration Procedure55
Calibrating the Secondary Analog Input57
Equipment Required57
Calibration Procedure57
Exit from Calibration Mode58
Calibration Check58
Section 10: Enable Mode59
Enable Mode Description59
Section 11: Pre-Tune Mode61
Pre-Tune Mode Description61
Section 12: Autotune Mode63
Autotune Mode and Description63
How Auto-Tune Works63
SECTION 13: Rapid FEATURE65
Rapid Description65
Appendix A: Board Layout - Jumper Positioning67
Appendix B: Range Codes73
For Thermocouple Inputs73
For RTD Inputs73
For DC Inputs74
APPENDIX C: Rapid CONTROL FEATURE75
Appendix D: Specifications77
Input Specifications77
Output Specifications79
Control Specifications81
Performance82
DC Outputs83
Operating Conditlons83
Performance under Operating Conditions84
Environmental84
Physical84
Appendix E: Software Reference Sheet85
Appendix F: Flow Chart of Operation88
Appendix G: Model Number Matrix89

Table of Contents

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