CASELLA CEL CEL-240, CEL-246, CEL-244, CEL-242 Operator's Manual

CEL-200 SERIES DIGITAL SOUND

LEVEL METERS

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Preface

HB3348-01

OPERATOR’S MANUAL

CASELLA C EL

CASELLA CHINA（中国）

CASELLA USA

CASELLA ESPANA S.A.

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PREFACE

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1. MANUAL CONVENTIONS

This section of the manual details the priority of Warnings, Cautions and Notes that

may apply throughout this manual.

2.

INTRODUCTION

This section of the manual gives a brief overview of the equipment.

3.

PREPARATION FOR USE

This section of the manual describes the first steps to using the CEL-200 Series
Digital Sound Level Meter.

4.

GENERAL OPERATION

This section of the manual describes the basic operating procedures.

5.

CALIBRATION

This section of the manual details the Calibration method.

6.

INSTRUMENT SETTINGS

This section of the manual describes the how to use the Instrument Settings.

7.

CONFIGURATION MENU

This section of the manual describes how to make changes to three specific settings.

8.

TIME AND DATE (CEL-242/246 ONLY)

This screen displays the time and date.

9.

MEMORY DELETION (CEL-242/246 ONLY)

This section details how to delete all loggings from the instrument memory.

10.

SET TIME AND DATE (CEL-242/246 ONLY)

This section details how to set the time and date.

11.

SWITCH OFF

This section of the manual describes the shut down procedure.

12. EQUIPMENT SPECIFICATION

This section of the manual gives the Specifications and Characteristics for the CEL­200 Series Digital Sound Level Meter.

13. SERVICE AND WARRANTY

This section of the manual explains Casella’s after sales policy on the instruments
covered in this manual.

14.

ENVIRONMENTAL CONSIDERATIONS

This section of the manual stipulates the environmental policies Casella have

committed to for the manufacture of instruments.

15. DECLARATION OF CONFORMITY

This section shows the declaration of conformity for the CEL-200 series instrument.

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1. MANUAL CONVENTIONS

PRIORITY ONE
PERSONAL SAFETY.

When a WARNING is included in the text, the WARNING will always precede the text

it applies to.

WARNING: Indicates personal injury will result if proper precautions are not
followed.

PRIORITY TWO
EQUIPMENT PROTECTION.

A CAUTION will always precede the text it applies to.

CAUTION: Indicates equipment damage can result, if proper precautions are not
taken.

Note(s). Notes usually follow the text to which they apply. Notes can contain advice,
hints, extra information and explanations.

Back to

Index

3

2. INTRODUCTION CEL-240, 242, 244 and CEL-246

Congratulations on your purchase of a CEL-200 Series Digital Sound Level Meter,
subsequently referred to as the ‘instrument’.

The instrument has been designed to
perform accurate noise measurements through a wide range. It is a comp letely
digital sound level meter, designed for stable, reliable performance, fully compli ant
with in tern ation al sound level meter standards.

This instruction manual is to help you get the most benefit from your CEL-200
Series Digital

Sound Level Meter and to ensure accurate noise measurements.

The CEL-200 Series range comprises of 4 models, the features are summarised in the table
below.

The instrument is illustrated in Figure 1.

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Figure 1 CEL-200 Series Digital Sound Level Meter

1. Microphone. 2. Power ON / OFF key. 3. Display. 4. Left Key. 5. Right Key.

6. USB PC Output. 7.

Auxiliary socket (2.5mm Stereo)

.

Back to

Index

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3. PREPARATION FOR USE

PROCEDURE (Refer to Figure 2)

1. Open the Battery Cover.

2. Check the battery compartment is clean and dry.

3. Fit three new AA Alkaline (or

NiMH) batteries according to the polarity in the

battery compartment.

4. Close the Battery Cover.

Notes:

If there is evidence of leakage from previously installed batteries, contact Casella
at the address given in Contact Details before using the instrument.

Caution:

Do not mix battery types.

Always

fit new batteries when the battery ind icator (A) shows battery strength is

low to prevent the instrument switching OFF while in use.

Figure 2 Preparations for Use

Back to Index

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4. GENERAL OPERATION

1. Press and release the Power ON/OFF key to switch ON

. During the software

initiation the screen will display the firmware version

(e.g. V035-05 indicates issue

5 of the firmware)

and the serial number (such as 0108121) followed by the Main

Measurement screen. (Refer to Figure 3).

Note: During power-up, CEL-242 and CEL-246 models will display time/date and

memory settings as described in

Section 8. If you do not wish to alter these settings

on CEL-242/246 models do not press any keys and the instrument will proceed to the
main measurement shown below.

2. If the instrument requires calibration, refer to

CALIBRATION for details.

3. Fit the windshield over the microphone before attempting any measurement.

CEL-240/242 CEL-244/246

A. – Battery Indicator. B. – Over Range Indicator. C. – Sound Pressure Level.

D. Analogue Display Bar. E. Measurement Scale. F. Maximum Sound Pressure Level.

G. Instrument Settings. H. Reset. I. Average Sound Pressure Level.

Figure 3 Main Measurement Screen

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