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KROHNE BM 70 A User Manual

KROHNE BM 70 A
83 pages
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DIN A4: 7.02182.37.00
©
KROHNE 11/2000 US size: 7.02182.77.00
GR/LP
Status: 05-1998
Installation and operating instructions
(Reference Manual)
Level Radar
BM 70 A / BM 70 P
Non-contact level gauging
using electromagnetic waves
Variable area flowmeters
Vortex flowmeters
Flow controllers
Electromagnetic flowmeters
Ultrasonic flowmeters
Mass flowmeters
Level measuring instruments
Communications engineering
Engineering systems & solutions

Table of Contents

Other manuals for KROHNE BM 70 A

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KROHNE BM 70 A Specifications

General IconGeneral
ApplicationLevel measurement
Accuracy±2 mm
Output4-20 mA, HART®
Housing materialAluminum, stainless steel
Process connectionFlange, thread
ApprovalsATEX, IECEx, FM, CSA
Protection classIP66/IP67
CommunicationHART, Modbus
Process temperature-40 to +80 °C

Summary

General Safety and Handling Advice

Product Liability and Warranty

Details warranty terms and user responsibilities for product installation and operation.

Documentation Supplied

Lists available documentation such as condensed instructions and instruction cards.

Software and Compatibility Information

Software History

Tracks firmware versions and their changes for BM 70 A and BM 70 P models.

PC-CAT Software Compatibility

Details compatibility of PC-CAT software with BM 70x instruments and operating systems.

Product Overview and Basic Operation

Range of Application

Defines the intended use and applications for the BM 70 A/P level gauging system.

Mode of Operation and System Structure

Explains the FMCW-Radar principle and the modular design of the system.

Input Parameters

Covers measured variables, measuring ranges, and block distances for input.

Output Signals and Communication Interfaces

Output Variants

Lists available output variants like HART®, RS 485, and PROFIBUS-PA.

HART Communication

Describes HART communication protocols for point-to-point and multidrop connections.

Digital Interface RS 485

Details the RS 485 bus for two-way communication and PC configuration.

Breakdown Signal and Digital Input

Explains how breakdown information is accessed and the function of the digital input.

Measuring Accuracy and Performance

Reference Conditions and Error Measurement

Specifies reference conditions and details error of measurement based on distance.

Repeatability and Resolution

Defines repeatability, measured value resolution, and hysteresis.

Temperature Effects and Drift

Describes transient recovery, turn-on drift, long-term drift, and ambient temperature effects.

Installation and Ambient Conditions

Installation Conditions

Covers transmission angles and recommendations for positioning on the tank.

Ambient Conditions

Details hazardous location suitability, temperature limits, and environment class.

Product Conditions

Discusses physical properties, limitations, and operating pressure for various products.

Maintenance

Provides guidance on cleaning the antenna and general maintenance.

Device Design and Components

Models and Dimensions

Presents the different models, dimensions, and weights of the BM 70 A/P.

Signal Converter Replacement

Provides step-by-step instructions for replacing the signal converter, including safety precautions.

Electrical Connection

Details the electrical connection for power supply, signal outputs, and terminals.

User Interface and Configuration

Local Display and Key Operation

Explains local display variants, key functions, and operator control concepts.

Settable Functions and Configuration

Details settable functions, configuration examples, and descriptions of specific functions.

Troubleshooting and Error Handling

Covers pointers, error messages, faults, symptoms, and calculation of measured values.

PC-CAT Software

Describes the PC-CAT program for configuration, monitoring, and data analysis.

Power Supply and Safety Advice

Power Supply Options and Data

Lists available power supply versions and their technical data.

Fuse Replacement and Voltage Changeover

Explains how to replace fuses and change operating voltage, including safety steps.

General Safety Advice

Provides essential safety advice regarding insulation, disconnecting devices, and protection class.

Certifications and Approvals

Hazardous-Duty Approvals

Lists ATEX and FM approvals for hazardous locations.

Explosion Proofing and Radio Approval

Details ATEX explosion proofing categories and radio approval information.

CE Manufacturer's Declaration

Contains the declaration of conformity with relevant European directives and standards.

Order Information

Technical Information for Ordering

Lists technical details required for placing an order, including flanges and options.

External Standards and Quality Assurance

External Standards, Codes and Directives

Lists relevant international and national standards, codes, and directives.

Quality Assurance

States the company's quality certifications, such as DIN ISO 9001.

Annexes and Appendices

Annex A: Technical Data Summary

Provides a summary of technical specifications across various sections of the manual.

Annex B: Type Code and Nameplates

Explains the type code structure and shows examples of nameplates for identification.

Annex C: Spare Parts List

Lists spare parts with their part numbers for maintenance and repair.

Annex D: Device Return Declaration Form

Provides a form for declaring a device is safe to handle when returned for service or repair.

Annex E: Configuration Documentation Checklist

Offers a checklist for documenting device configuration parameters.

Annex F: Index

An alphabetical index of topics and their corresponding page numbers for quick reference.

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