BRUEL & KJAER 2305 User Manual

Level Recorder Type 2305
AC and DC level Recording.
logarithmic and linear Recording .
.polar and Rectilinear Recording,
RMS, Average and Peak Recording.
50 and 100 mm Width of Recording Paper.
Ink and Sapphire Registering.
High Writing
Speed and Paper Speed.
Synchronous Drive with Scanning of
B & K Oscillators, Spectrometers, Analyzers and
Filter Sets.
BAUEL& K~AC.R
N~RUM , DENMARK. Teleph .: 800500 . Cable : 8RUKJA. Telex : 5316. COPEN':tAGEN
B B 230 5 - 0300036

BRUEL & KJAER 2305 Specifications

General

Dynamic Range	50 dB
Accuracy	±1 dB
Detector	RMS
Weighting	A, C
Display	Analog Meter
Time Weighting	Fast, Slow

Summary

Description of the Level Recorder Type 2305

General Overview

Provides a general introduction to the Level Recorder Type 2305, its capabilities, and application areas.

Electronic System Architecture

Details the electronic components including input circuit, amplifiers, rectifiers, and limiters.

Mechanical System Components

Explains the mechanical drive system, including motor, gearbox, drive shafts, and clutches.

Electromechanical System Components

Describes the synchronous motor, electromagnetic clutch, lifting magnet, and event marker.

Writing System Mechanism

Details the magnet system and electrodynamic writing system for recording.

Paper Holder System Functionality

Power Supply Unit Configuration

Details the rectifiers, voltage references, and fuse protection for the power supply.

Controls, Terminals, and Mechanical Drives

Front Panel Controls and Indicators

Details on FUSE, SUPPLY VOLTAGE selector, pilot lamp, POWER and MOTOR switches.

Input and Connection Terminals

Signal Conditioning Controls

Covers INPUT ATTENUATOR, INPUT POTENTIOMETER, and 100 mV REF. pushbutton.

Range and Resolution Settings

Explains POTENTIOMETER RANGE selector for logarithmic and linear potentiometers.

Signal Processing and Speed Settings

Details RECTIFIER RESPONSE, LOWER LIMITING FREQUENCY, and WRITING SPEED selectors.

Paper Drive and Speed Controls

Covers PAPER SPEED and DRIVE SHAFT SPEED selectors.

Drive System Operation Controls

Explains STOP-START, REVERSE, SINGLE CHART, EVENT-MARKING, and SYNCHRONIZING GEAR LEVER.

External Interfaces and Selectors

Describes DRIVE SHAFT connections, TWO-CHANNEL SELECTOR, and REMOTE CONTROL sockets.

Operation Procedures

Recording Paper Insertion Process

Procedures for loading rolled and polar recording paper.

Writing Width Adjustment Method

Writing Pen Installation and Use

Range Potentiometer Replacement Guide

Steps for changing the range potentiometer and necessary precautions.

Mains Frequency Conversion Procedure

Voltage Level Recording Methods

General, AC, DC, and Polar recording methods and calibration.

Applications of the Level Recorder

Spectrograms for Sound and Vibration Analysis

Automatic Recording of Frequency Characteristics

Automatic recording of frequency response for electronic and acoustic devices.

Two Channel Recording of Acoustic Signals

Automatic Recording of Directional Characteristics

Vibration Measurement and Recording

Strain Gage Measurement Recording

Frequency Analysis with Digital Output

Specifications

Electrical Specification Details

Frequency range, sensitivity, dynamic range, input impedance, and voltage ratings.

Mechanical Specification Details