Evaluation International Logo

Find and download reports on instrument testing and evaluation.

Evaluation International are pleased to announce the establishment of a national EMPHASIS ASSESSMENT register which is being made available to Evaluation International Member companies.  This register brings together all planned, in-progress and complete Emphasis Assessments, undertaken on behalf of the Sponsor Companies. 

In addition to this Evaluation International has established a Working Group to oversee the development of the Register and supporting services. Any organisations wishing to access the register or participate in the working group should email: enquiries@evaluation-international.com and a member of our team will be happy to assist.

 

 

Evaluation International has bilateral agreements with both EXERA and WIB. These agreements enable EI member companies to access the reports produced by these associations and to collaborate in working groups and projects. 

In addition, EI participates in a wider consortium of end-user organisations across Europe with member companies that operate on a global scale. The aim of this consortium is to ensure that the widest possible community of large-scale EC & I end-user organisations are provided with a platform on which to share knowledge, network, collaborate and share.

The consortium includes the following organisations:

 

EXERA – the French end-users association for industrial automation. [https://www.exera.com]
WIB – a process automation users association covering the Netherlands and Belgium. [https://www.wib.nl]
CLUI – the Italian Association for Automation and Instrumentation Systems. [http://www.cluias.it]
NAMUR – the German end-user association of automation technology and digitalisation in process industries. [https://www.namur.net]

 

Exera logo  WIB logo   Screenshot 2022 12 12 at 12.19.42    NAMUR logo

   

E1898X09

REPORT TITLE

Dual Channel NAMUR NE43 Trip Amplifier

ABSTRACT

This report describes an evaluation of two Lee-Dickens BM9432 trip amplifiers (serial no(s): 9405-01-01 and 9405-01-02). A trip amplifier is a switching unit for analogue signals, 4-20 mA. Trip-amplifiers are used in many industries. Their most common use is as discreet switching devices that monitor analogue signals (i.e. an incoming 24Vdc based 4 to 20mA signal can have high and low switching points initiated by the trip-amplifier). These discreet switching points are often for on/off control, or more importantly alarm annunciation or initiating automatic trip logic. Each of the tested units has two settable switch points, and two functional alarms, one for supply voltage and one for signal level. The later fixed switch point will indicate if the input signal is outside normal operating range (as described in the NAMUR NE 43 standard).

PUBLICATION DATE

2009

REPORT TYPE

INDEX CLASSIFICATION

11.2 - Microswitches, limit switches

MANUFACTURER

Lee-Dickins Ltd

COUNTRY

UK

REPORT DOWNLOAD

Please login to download this file.