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Endress+Hauser Prothermo NMT81 User Manual

Endress+Hauser Prothermo NMT81
112 pages
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Products Solutions Services
Operating Instructions
Prothermo NMT81
Tank Gauging
BA02094G/00/EN/01.21
71517024
2021-06-08
Valid as of version
01.00.00.zz (Device firmware)

Table of Contents

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Endress+Hauser Prothermo NMT81 Specifications

General IconGeneral
BrandEndress+Hauser
ModelProthermo NMT81
CategoryMeasuring Instruments
LanguageEnglish

Summary

About This Document

Document Function

Explains the purpose and scope of the operating instructions for the device lifecycle.

Document Conventions

Details symbols, notations, and conventions used throughout the manual.

Documentation

Lists available documentation types and sources on the Endress+Hauser website.

Basic Safety Instructions

Requirements for the Personnel

Specifies qualifications, authorization, and knowledge required for personnel.

Designated Use

Defines the intended application and conditions for the measuring device.

Product Safety

Details the device's design and compliance with safety standards.

Product Description

Product Design

Describes the physical design and key features of the Prothermo NMT81.

Incoming Acceptance and Product Identification

Incoming Acceptance

Outlines the checks to perform upon receiving the goods.

Product Identification

Explains the methods for identifying the measuring device.

Storage and Transport

Details storage conditions and transport guidelines for the device.

Installation

Converter

Provides dimensions and basic information for the converter unit.

Option 1: Converter with Universal Coupling

Details the installation of the converter with a universal coupling.

Option 2: Converter with M20 Mounting Thread

Details the installation of the converter with an M20 thread.

Converter + Average Temperature Probe Version

Explains the installation of the converter with an average temperature probe.

WB Probe Design

Describes the design and features of the Water Bottom (WB) probe.

Installation Procedure

Outlines the general steps for installing the NMT81 device.

Mounting NMT81 on a Cone Roof Tank

Specific procedures for mounting the device on cone roof tanks.

Mounting NMT81 on a Floating Roof Tank

Specific procedures for mounting the device on floating roof tanks.

Mounting NMT81 on a Pressurized Tank

Specific procedures for mounting the device on pressurized tanks.

Electrical Connection

NMT81 (Ex ia) Intrinsically Safe Connection

Covers intrinsically safe HART communication wiring and terminals.

NMS8x/NMR8x/NRF81 (Ex d [ia]) Intrinsically Safe Connection

Details intrinsically safe connections to NMS8x, NMR8x, and NRF81.

Mechanical Connection for Converter-Only Version

Provides steps for the mechanical connection of converter-only units.

Operability

Overview of Operation Options

Lists methods for operating the NMT81 device (keys, tools, HART master).

Operating Keys and DIP Switches

Details the physical controls on the electronic insert for device settings.

Hardware Locking or Unlocking

Explains how to lock/unlock parameter write access using DIP switches.

Configuring NMT81 with NMS5/NMS7/NRF590

Steps for configuring the NMT81 with specific Endress+Hauser devices.

Configuring NMT81 with NMS8x/NMR8x/NRF81

Steps for configuring the NMT81 with NMS8x, NMR8x, and NRF81.

Access to Operating Menu via Operating Tool

Describes accessing the menu using FieldCare or similar operating tools.

System Integration

Overview of Device Description Files (DTM)

DTM specifications required for HART integration in FieldCare.

Measured Variables via HART Protocol

Lists measured values assigned to device variables at the factory.

Commissioning

Terms Related to Temperature Measurement

Defines key terms relevant to temperature measurement in the device.

Initial Setting

Basic initial settings required for the device.

Initial Screen

Describes the layout and components of the initial screen in FieldCare.

Guidance

Details the steps for performing initial measurement settings.

Import / Export

Procedures for importing and exporting device configuration data.

Operation

Compatibility Mode of NMT53x and NMT81

Explains switching between NMT81 and NMT53x operating modes.

Application

Covers setting main parameters related to device application.

Measured Values

Confirms that temperatures, levels, and other measured values are correct.

Sensor

Details sensor configuration including general settings and averages.

HART Output

Configures HART communication parameters like address and tags.

System

Manages system-level device settings and descriptions.

Device Management

Manages device tag, locking status, and configuration counter.

Diagnostics and Troubleshooting

System Error Messages

Describes how errors are signaled via symbols, colors, and codes.

General Errors

Lists common errors, their causes, and remedial actions.

Diagnostics

Details how to access and interpret diagnostic information.

Active Diagnostics

Displays current diagnostic messages and operating time.

Simulation

Allows simulating errors to test output behavior.

Maintenance

Maintenance Tasks

Covers general maintenance tasks, noting no special work is required.

Exterior Cleaning

Provides guidelines for cleaning the exterior of the measuring device.

Endress+Hauser Services

Information on available maintenance, recalibration, and testing services.

Repair

General Information on Repairs

Outlines the repair concept and general information.

Repairs to Ex-Approved Devices

Specific requirements and precautions for repairing Ex-approved devices.

Spare Parts

Information on identifying and ordering spare parts for the device.

Accessories

Device-Specific Accessories

Lists accessories specifically designed for the device.

Weather Protection Cover

Details on the weather protection cover accessory and its ordering.

Anchor Weight (High Profile)

Information on the high profile anchor weight accessory.

Anchor Weight (Low Profile)

Information on the low profile anchor weight accessory.

Top Anchor

Specifications and dimensions for the top anchor accessory.

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