MSA Ultima MOS-5 Manual de usuario descargar pdf (Pagina 6)

ULTIMA MOS 5 HART

Resistor

RS-232 USB HART

Interface

Handheld

Terminal

3.0 Product Overview

The ULTIMA MOS 5 is an intelligent sensor for the detection of Hydrogen Sulfide (H2S) gas and vapors.

The microprocessor-based electronics processes information at the sensor site, within an explosion-proof

housing. The ULTIMA MOS 5 is an Intelligent Sensor from MSA. The ULTIMA MOS 5 accurately

measures Hydrogen Sulfide gas and reports the measurement as a parts per million (PPM) of the gas.

3.1 Getting Started

In order to enable HART communication with the ULTIMA MOS 5 detector, users may employ several

means including HART handheld communicators or PC-based systems. Using a PC-based software

application and a HART interface modem, for example, allow operators to access information from the

ULTIMA MOS 5. A typical setup is illustrated in Figure 1.

Workstation

Figure 1: Connecting a PC to a HART device

Once the detector is installed (see ULTIMA MOS 5 Instruction Manual) and connected to a PC, host

application, or handheld terminal, the master will commonly begin communication to the ULTIMA MOS 5

by using the HART Command #0. The field device will then respond only if its tag matches. The data in

the reply to Command #11 is identical to that of Command #0, so the master can then construct the

Unique Identifier for use with further commands.

NOTE: The handheld device allows for the retrieval of diagnostic information and input of device

settings as needed and should not be used as a permanent part of a safety system.

PC Host

Application

Power

Supply

ULTIMA

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MSA Ultima MOS-5 Manual de usuario Pagina 6