Level-Trac Model LT-310 Control Unit
INSTALLATION, OPERATION AND INSTRUCTION MANUAL
Note: This document should be reviewed in its entirety prior to installation of equipment.
1.0 Operating Principle 2
2.0 System Configuration 2
2.1 Channel Assignment 3
2.2 Alarm/Trip and Fault Detection Relays 3
2.2.1 Alarm Relays 3
2.2.2 Trip Relays 3
2.3 Sensitivity 3
2.4 Test Switches 4
2.5 System Fault 4
2.5 Process Fault 4
3.0 Installation & Cabling 4
3.1 Enclosure
3.2 Main Power Supply 4
3.3 Wiring Control Unit to Probes 5
3.4 Wiring Alarm/Trip Relays 6
3.5 Panel Mount Remote Indicator 7
4.0 Commissioning 7
5.0 System Specification 8
6.0 Field Programming 9
6.1. Discriminator PCB 9
6.2. Power Supply/Relay PCB 10
Figures
1.1 System Overview 2
3.3.1 Wiring Control Unit to Probes 5
3.3.1 Wiring Alarm/Trip Relays 6
Appendices
Appendix A: Instructions for Mounting Stahlin Enclosures 11
Appendix B: 16 Conductor High Temp Cable Specification 12
330-35
8/5/11
13960 South Wayside Drive • Houston, TX 77048 • USA
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