MSA Ultima MOS-5 User Manual

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this document may be used and disseminated
only for the purposes and to the extent
specifically authorized in writing by MSA.
Instruction Manual 04-14
MSA reserves the right to change published
specifications and designs without prior notice.
MANMOS5
Part No. MANMOS5
Revision 1
Ultima® MOS-5
Intelligent Sensor for
Hydrogen Sulfide Gas Detection

MSA Ultima MOS-5 Specifications

General

Detection Method	Electrochemical
Accessory Type	Sensor Module
Power Supply	N/A (Sensor Cartridge)
Communication	N/A (Sensor Cartridge)
Operating Temperature Range	-20°C to 50°C
Display	N/A (Sensor Cartridge)
Alarm Type	N/A (Sensor Cartridge)
Durability	Designed for use in industrial environments
Operating Humidity	15-90% RH non-condensing
Expected Life	2 years
Portability	Portable (when used with compatible host device)

Summary

1.0 Introduction

1.2 Special Warnings

Important safety precautions for handling the sensor.

1.3 System Integrity Verification

Procedures to ensure the system operates correctly.

2.0 Product Description

2.1 General Description

Overview of the Ultima MOS-5 Intelligent Sensor's features.

3.0 Installation

3.3 Choosing Product Locations

Guidelines for optimal sensor placement.

3.4 Mounting and Wiring

Steps for mounting the sensor and wiring connections.

3.5 Terminal Connections

Detailed connection points for terminal blocks.

3.5.1 Terminal Block TB1 - Sensor Connections

Details for TB1 sensor connections.

3.5.2 Terminal Block TB2 – Power and Signal Connections

Details on power and signal connections.

3.5.3 DC Power and Ground Connections

How to connect DC power and ground.

3.5.4 Analog Signal Connections

How to connect analog signal output.

3.5.5 Terminal Block TB3 – Relay Connections

Connections for optional relay contacts.

3.5.7 Cable Termination in the Non-hazardous Area

Procedures for cable termination in safe areas.

3.6 Maintaining the X/P Integrity

Factors influencing explosion-proof housing integrity.

4.0 Operation

4.1 Start-Up Checklist

Pre-operation checks for the system.

4.2 Start-Up

Procedure for powering up the instrument.

4.3 Relay Reset

Methods for resetting latched relays.

4.4 User Selectable Options

Customizing sensor range, relays, and communication settings.

4.4.1 Ultima MOS-5 Intelligent Sensor User Menu Structure

4.4.2 Sensor Range

4.4.4 Warning Relay Settings

4.4.5 Alarm Relay Settings

4.4.6 Modbus Channel 1 Settings

4.4.7 Modbus Channel 2 Settings

4.5 HART

4.6 Gas Check Mode

Checking sensor response without activating alarms.

4.6.1 Procedure for Checking the Calibration

Steps to perform a gas check on the sensor.

4.7 Calibration

Detailed steps for calibrating the sensor.

4.7.1 Calibration Procedure

Detailed steps for calibrating the sensor.

4.7.3 Remaining Sensor Life

4.7.4 Initializing the Remaining Sensor Life

5.0 Maintenance

5.1 General Maintenance

6.0 Troubleshooting

6.1 Fault Codes and Their Remedies

Diagnosing and resolving fault codes.

8.0 Modbus Interface

8.1 Baud Rate

8.2 Data Format

8.3 Modbus Read Status Protocol (Query/Response)

Protocol for reading sensor status via Modbus.

8.3.1 Modbus Read Query Message

Structure of a Modbus read query message.

8.3.2 Modbus Read Response Message

Structure of a Modbus read response message.

8.4 Modbus Write Command Protocol (Query/Response)

Protocol for writing commands via Modbus.

8.4.1 Modbus Write Query Message

Structure of a Modbus write query message.

8.4.2 Modbus Write Response Message

Structure of a Modbus write response message.

8.5 Function Codes Supported

8.6 Exception Responses and Exception Codes

Handling and understanding Modbus exception responses.

8.6.1 Exception Response

How the sensor provides exception responses.

8.6.2 Exception Code

List and meaning of Modbus exception codes.

8.7 Ultima MOS-5 Command Register Locations

Overview of register locations for commands.

8.8 Ultima MOS-5 Command Register Details

Detailed descriptions of command registers.

8.8.1 Analog (00H)

8.8.2 Mode (01H)

8.8.3 Status/Error (02H)

8.8.7 Status Block (06H)

8.8.9 Mode & Error (07H)

8.8.10 Error Sensor & Sensor Life (08H)

8.8.11 Display (0x09H & 0x0AH)

8.8.13 Alarm Settings (0DH)

Reading or changing alarm settings.

8.8.14 Warn Settings (0EH)

Reading or changing warning settings.

8.8.15 Com1 Address (0FH)

8.8.16 Com1 Baud Rate (10H)

8.8.17 Com1 Data Format (11H)

8.8.18 Com2 Address (12H)

8.8.19 Com2 Baud Rate (13H)

8.8.20 Com2 Data Format (14H)

8.8.22 Reset Alarms (16H)

8.8.23 Sensor Life (17H)

8.8.24 Sensor Scale (18H)

8.9 HART Enable (1D H)

8.9.3 Total Receive Errors (20H)

8.9.4 Bus Activity Rate % (21H)

8.9.5 Function Code Errors (22H)

8.9.6 Starting Address Errors (24H)

8.9.7 RXD CRC Errors Hi (25H)

8.9.8 RXD CRC Errors Lo (Same as Hi) (26H)

8.9.9 Parity Errors (27H)

8.9.10 Overrun Errors (28H)

8.9.11 Framing Errors (29H)

8.9.12 Total Software CH1 Errors (2AH)

8.9.15.1 HART Low Current Select (2ΕΗ)

8.9.15.3 Event Logging (30H to 5FH)

8.9.17 CH2 Total Receive Errors (70H)

8.9.18 CH2 Bus Activity Rate % (71H)

8.9.19 CH2 Function Code Errors (72H)

8.9.20 CH2 Starting Address Errors (73H)

8.9.21 CH2 Number of Register Errors (74H)

8.9.22 CH2 RXD CRC Errors Hi (75H)

8.9.23 CH2 RXD CRC Errors Lo (Same as Hi) (76H)

8.9.24 CH2 Parity Errors (77H)

8.9.25 CH2 Overrun Errors (78H)

8.9.26 CH2 Framing Errors (79H)

8.9.27 CH2 Total Software CH1 Errors (7AH)

9.0 Appendix

9.2 Principle of Operation

9.3 Specifications

Technical specifications of the sensor system.

9.3.1 System Specifications

Technical specifications of the sensor system.

9.3.3 Electrical Specifications

9.3.4 Environmental Specifications

9.4 Approvals

9.6 FM Approval