BRUEL & KJAER Mediator 2238 Guía

Technical

Documentation

English BB1122–11

2238 Mediator

Integrating Sound Level Meter

Enhanced SLM Software BZ7125

August 1998

Brüel & Kjær BB1122–11

2238 Mediator

Integrating Sound Level Meter

Enhanced SLM Software BZ 7125

0–2 Brüel & Kjær2238 Mediator

User Manual

Trademarks

2238 Mediator is a trademark of Brüel & Kjær A/S.

distributed in any form, or by any means, without prior consent in writ-

ing from Brüel & Kjær Sound & Vibration Measurement A/S, Nærum,

Denmark.

BB1122–11 0–3

2238 Mediator

User Manual

Contents

About this manual and the contents of the Enhanced module

Pushkey definitions

Explains how to set up parameters in the Measurement Set-up menu

Erasing bad data and setting a sequence to start automatically

Setting up print options and statistics data

Specifications for the Enhanced module

List of default parameters and interface error messages

Explains the programming of the interface jobs for the Enhanced

module

Introduction

Pushkey Definitions

The Measurement Set-up Menu

Measuring

Data Handling

Specifications

Appendix 1: General

Appendix 2: Interface

0–4 Brüel & Kjær2238 Mediator

User Manual

9Index

BB1122–11 1–1

2238 Mediator

User Manual

Chapter 1

Introduction

1.1 About this Manual.............................................................. 1–2

Summary of Contents........................................................ 1 – 2

About this Volume............................................................. 1 – 3

Detectors ............................................................................ 1 – 4

Statistics ............................................................................ 1 – 5

Back-erase.......................................................................... 1 – 5

Measurement Sequences................................................... 1 – 5

Aux 1................................................................................... 1 – 5

Aux 2................................................................................... 1 – 5

Measurement Set-up Menu .............................................. 1 – 6

1.2 Changing Application........................................................ 1 – 6

1.3 Measurement Parameters............................................... 1 – 6

Chapter 1 – Introduction

About this Manual

1–2 Brüel & Kjær2238 Mediator

User Manual

1.1About this Manual

1.1.1 Summary of Contents

●Chapter 1 – Introduction: provides a general overview

of the Enhanced module and its functions.

●Chapter 2 – Pushkey Definitions: provides informa-

tion about the pushkey functions for the Enhanced mod-

ule.

●Chapter 3 – Measurements Set-up Menu: gives in-

structions for setting up the measurement parameters

for the Enhanced module.

●Chapter 4 – Measuring: gives instructions for using the

back erase function and for starting a Measurement Se-

quence automatically.

●Chapter 5 – Data Handling: contains information about

the parameters that are saved in the Enhanced module,

the statistics data and how to set up the print options.

●Chapter 6 – Specifications: technical specifications for

the Enhanced module.

●Appendix 1 – General: lists the default parameters and

interface error messages that are specific for the En-

hanced module.

●Appendix 2 – Interface: gives instructions for using the

interface commands and queries for the Enhanced mod-

ule

●Index

Chapter 1 – Introduction

About this Manual

BB1122–11 1–3

2238 Mediator

User Manual

1.1.2 About this Volume

This volume of the User Manual deals only with the instruc-

tions and functionality that are specific for the Enhanced

module (Enhanced SLM Software BZ7125).

For information about the general operation and functionality

of Mediator please refer to the Basic User Manual (BZ 7126).

Conventions Used in this Manual

Pushkeys

References to buttons on the 2238 Mediator are shown with

the pushkey’s pictogram as it appears on the instrument (for

example ). Refer to section 2.1 for a complete list of button

pictograms and their functions.

Soft Keys

Mediator has two “soft keys” that have different functions

depending on the current context. The soft keys functions are

denoted by chevrons (<>) and courier type face. The current

functions of the soft keys are always shown on the display.

The soft key can have the following functions: <Select>,

<Save>, <Ok> or <Menu>. The soft key can have func-

tions: <Cancel>, <Undo> or <Close>. They can also have

functions: <Freq W.> or <Time W.> respectively, depending

on the selected parameter in the Measurement Window. This

is similar to the functionality from the familiar Windows

environment.

Parameter Text

Text which refers directly to text on the instrument’s screen

or printouts is indicated using a Courier type face.

For example: Press until Language is highlighted in the

System menu.

Sockets

Reference to sockets is made in bold type face (for example,

Aux 1).

Chapter 1 – Introduction

About this Manual

1–4 Brüel & Kjær2238 Mediator

User Manual

1.1.3 Detectors

One of the main features of the Mediator is that it contains

two detectors with independent frequency weighting func-

tions, see Fig. 1.1. In the Enhanced module, one is an RMS

detector and the other can be set up to measure RMS or Peak.

This allows, for example, simultaneous measurement of A-

and C-weighted RMS and to measure and display the differ-

ence between two RMS parameters directly (for example, LCeq

– LAeq).

Fig.1.1 Simplified block diagram for 2238 Mediator

L-filter MUX Aux 1

Aux 2

A-filter

C-filter

Overload detector

1/1- and 1/3-Octave

Filter Set

Correction filter

(Sound Incidence,

Windscreen)

Amplifier

10 dB/step

(Cal. adjustment)

Preamplifier

MUX

Buffer

AC out

RMS

detector

Time weighting

Buffer

DC out

Peak/RMS

detector

Digital control

and processing

Power supply

Display

Keys

Microphone

RMS 1 RMS 2 PEAK AUX1/2

External

power

supply

980362e

Batteries 6V

(4 x AA size)

Serial

interface

Otros manuales para Mediator 2238

Tabla de contenidos

Otros manuales de Instrumento de medición de BRUEL & KJAER

BRUEL & KJAER

BRUEL & KJAER 2145 Manual de instrucciones

BRUEL & KJAER

BRUEL & KJAER 2212 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2211 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2502 Instrucciones de funcionamiento

BRUEL & KJAER

BRUEL & KJAER 1019 Instrucciones de funcionamiento

BRUEL & KJAER

BRUEL & KJAER 2305 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 4448 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2203 Instrucciones de montaje

BRUEL & KJAER

BRUEL & KJAER 2211 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2236 Instrucciones de instalación y funcionamiento

BRUEL & KJAER

BRUEL & KJAER 2972 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 1213 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER Mediator 2238 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER BK Connect 9712-W-FEN Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2209 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 4294 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2107 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 2206 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 1526 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 1101 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER VIBROCONTROL 920 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER 2607 Guía del usuario

BRUEL & KJAER

BRUEL & KJAER 4448 Manual de usuario

BRUEL & KJAER

BRUEL & KJAER VIBROCONTROL 1800 Series Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario