MSA SENTRY io User Manual

US SENTRY io 3
Contents
1 Safety Regulations 5
1.1 Liability 5
1.2 Warnings 5
1.3 Correct Use 6
2 Overview 7
2.1 Components 7
2.2 Control Unit 8
2.2.1 Wall Mount Enclosure 8
2.2.2 Power Supply 8
2.2.3 CPU and HMI Touchscreen Panel 9
2.2.4 Buzzer 9
2.3 Input and Output Devices 9
2.3.1 Input Power Sources 9
2.3.2 Input Devices Compatibility 10
2.3.3 Output Devices Compatibility 11
2.3.4 Gas Reading Conversion 13
2.3.5 Faults 13
2.4 Power Source Compatibility and Budgeting 13
2.4.1 Power Compatibility 13
2.4.2 Power Budgeting—Connected Field Device Power Allocation Calculation 13
2.5 Installation Recommendations 13
2.6 Field Cabling 14
2.7 Configuration and Programming 14
3 Installation 16
3.1 Warnings 16
3.2 Preparing for Installation 16
3.3 Mechanical Installation 16
3.3.1 Mounting Guidelines 16
3.3.2 Wire Entry Penetrations 17
3.4 Electrical Installation 17
3.4.1 Electrical Power Supply Requirements 17
3.4.2 Electrical Installation Procedure 18
3.5 Communications 18
3.5.1 Modbus TCP 18
3.5.2 Modbus RTU (RS485 Serial)—Optional 18
3.5.3 Device Level Ring (DLR) 20
3.6 Remote Displays 20
3.7 Wiring and Grounding 20
3.8 Relay Outputs 21
4 Configuration 22
4.1 General Settings 22
4.1.1 Setting the System Language 22
4.1.2 Setting the Date and Time 22
4.1.3 Setting the Communication Information 23
4.1.4 Setting the Administration Password 24
4.2 Input/Output Configuration 24
4.3 Detectors and Alarm Setpoints 24
4.3.1 Auto Identifying Detectors 24
4.3.2 Manually Identifying Detectors 25
4.3.3 Detectors Summary 25

MSA SENTRY io Specifications

General

Brand	MSA
Model	SENTRY io
Category	Controller
Language	English