MSA Ultima MOS-5 Manual de usuario descargar pdf (Pagina 7)

ULTIMA MOS 5 HART

4.0 Product Interfaces

4.1 Process Interface

This section describes all interfaces between the devices and the measured process.

4.1.1 Sensor Input Channels

A digital display provides indications and display codes that can be viewed through a window in the

cover. A red LED above the digital display signifies an ALARM condition, while a red LED below the

digital display signifies a WARN condition. Analog signal (4-20 mA) and relays provide remote and/or

discrete indications of the sensor’s operation.

4.2 Host Interface

The HART interface uses the 4 – 20 mA current loop. Refer to the installation manual for connection

details.

4.2.1 Analog Output: ULTIMA MOS 5 Mode

The primary variable is proportional to the part per million. 4.0 mA output current corresponds to 0

PPM 20.0 mA output current corresponds to 100 PPM or 100% of full scale

4.3 Local Interfaces, Jumpers, and Switches

4.3.1 Local Controls and Displays

Refer to the Installation Manual for connection details.

4.3.2 Internal Jumpers and Switches

Refer to the Installation Manual for connection details.

5.0 Device Variables

There are no device variables exposed to the user.

6.0 Dynamic Variables

There is only one Dynamic Variable exposed to the user.

6.1 Primary Variable = Part Per Million

The primary variable is proportional to the part per million 4.0 mA output current corresponds to 0 PPM.

20.0 mA output current corresponds to 100 PPM or 100% of full scale. The device mode is the variable,

which corresponds to the Modbus register 0x00.

6.2 Secondary, Tertiary, and Quaternary Variables: Not Applicable

There are none defined for the ULTIMA MOS 5 product.

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MSA Ultima MOS-5 Manual de usuario Pagina 7