22
Appendix II – List of illustrations
Section
Figure
Title
Page
1.
Introduction
1.1
Gap Sensor
3
1.2
Hi-Sens Sensor
3
1.3
Attenuation Method
4
1.4
Interface Method
4
1.5
Sludge Density Sensor
5
2.
Installation
2.1
Head Amplifier
7
2.2
Adjacent head amplifier
8
2.3
Control unit mounting details
11
2.4
Wiring Summary
12
2.5
Sensor connections to adjacent head amplifier
13
2.6
Control unit connections
14
Appendix III - List of tables
Section
Table
Title
Page
1.
Introduction
1.1
Head amplifier – types
6
1.2
Head amplifier – operation
6
2.
Installation
2.1
Relay ratings and fuses
13
2.2
Approvals
15
4.
Specification
4.1
Sensor specification
17