Instruction Manual
ExTox Control Unit ET-1D Series
Page 3 of 17
Content
1
Introduction
4
2
Features of the Control Unit of the ET-1D Series
5
3
Indications and Facilities of the Control Unit
6
4
Configuration
7
5
Operation of the Control Unit
11
5.1
Measuring Mode
11
5.2
Alarms
11
5.3
Under-Scale and Over-Scale of Measuring Range
12
5.4
Channel Fault
12
5.5
Fault of Control Unit
13
5.6
Programme Run Monitoring (Watchdog)
13
5.7
Initialisation
13
5.8
Service Mode
13
5.9
Analogue Outputs 4…20 mA (Type ET-1DA only)
13
6
Application
14
6.1
Measuring Function
14
6.2
Use in combination with hazardous Areas
14
7
Installation
15
7.1
Mechanical Installation
15
7.2
Electrical Installation
15
8
Maintenance of Gas Detection Systems
16
8.1
Basic Information
16
8.2
Visual Check
16
8.3
Functional Check
16
8.4
System Check
17
9
Technical Data and Declaration of Conformity
17
