Table of Contents

1.0 Introduction

1.1 Principle of Operation...........................................1

1.2 Description............................................................1

2.0 Installation ...................................................................2

2.1 Unpacking.............................................................2

2.2 Installation Location..............................................2

2.2.1 Metal Walled Tanks ....................................2

2.2.2 Tanks/Silos w/Non-Conductive Materials

of Construction ..........................................3

2.3 Horizontal Mounting ............................................3

2.3.1 Narrow Differential Single Point

Units Only..................................................3

2.4 Vertical Mounting .................................................4

2.5 Mounting Procedure..............................................4

2.5.1 Integral Mount with Rigid Probe................4

2.5.2 Integral Mount with Flexible Probe ............5

2.5.3 Remote Mount with Rigid Probe ...............6

2.5.3.1 Main Amplifier .....................................6

2.5.3.2 Preamplifier ..........................................6

2.5.4 Remote Mount with Flexible Probe ............6

2.5.4.1 Main Amplifier .....................................6

2.5.4.2 Preamplifier ..........................................7

2.6 Electrostatic Discharge (ESD)

Handling Procedure ..............................................8

2.7 Wiring...................................................................8

2.7.1 Integral Mount Models...............................8

2.7.1.1 Relay Wiring.........................................8

2.7.1.2 Power Wiring........................................8

2.7.2 Remote Mount Models...............................9

2.7.2.1 Probe Preamplifier Wiring ....................9

2.7.2.2 Relay Wiring.......................................10

2.7.2.3 Power Wiring......................................10

2.7.3 Relay Wiring Chart ..................................10

2.7.4 Wiring Notes and Definitions ..................11

2.8 Calibration ..........................................................11

2.8.1 Level Range Selection ...............................11

2.8.2 Fail-safe Mode Selection ...........................12

2.8.2.1 High Level Mode ................................12

2.8.2.2 Low Level Mode .................................12

2.8.3 Calibration Adjustments ...........................12

2.8.4 Zero Adjustment.......................................12

2.8.5 Zero and Span Adjustment .......................13

2.8.5.1 Wide Differential Vertical Probe

Mount only.........................................13

2.8.6 Time Delay Adjustment............................14

2.8.6.1 Narrow Differential only.....................14

3.0 Reference Information

3.1 Troubleshooting...................................................15

3.1.1 Probe ........................................................15

3.1.2 Electronics ................................................15

3.1.2.1 Narrow differential point units ...........16

3.1.2.2 Wide differential point units...............16

3.2 Agency Approvals ................................................18

3.3 Specifications.......................................................18

3.3.1 Electrical...................................................18

3.3.2 Dimensional – Integral Mounts................19

3.3.3 Dimensional – Remote Mounts................20

3.4 Terminal Connections .........................................21

3.5 Replacement Parts ...............................................22

3.6 Model Numbers ..................................................23

NOTES .............................................................................24

Kotron Model 80/81

RF Point Level Switches