Casella CEL CEL-621 User Manual

FIT THE BATTERIES

The CEL-6X0 Instrument requires three AA batteries. Remove the battery
compartment cover and fit the batteries observing correct polarity. Refit the
battery cover.

Note: The batteries can be zinc carbon, alkaline or rechargeable. Do not mix
battery types.

SWITCH ON

Press the ON/OFF Key - Figure 1 (3). Check the battery condition symbol shows
good charge.

CEL- 620A - The initialisation screen will be displayed, then the Graph
screen in the STOP mode (red bar at the top and bottom of screen). Press the
MENU Key to access settings, memory and instrument status.

CEL- 620B - The initialisation screen will be displayed, then the Octave screen in
the STOP mode (red bar at the top and bottom of screen). Press VIEW to see the
Graph screen. Press the MENU Key to access settings, memory and instrument
status.

SETTINGS SCREEN (Refer to Figure 2)

SET TIME AND DATE (Refer to Figure 3)

Select (1) Settings. Press (B) to continue. Use cursor keys (C) to select Set Clock
symbol (2). Press (B) to continue. Press Edit (B) and use cu rsor keys (C) to set the
time. Press SAVE (B). Use cursor keys (C) to enable the date. Press (B) to edit.
Repeat to alter the date as required. Press EXIT (A) when finished.

Figure 4 Calibration Screens

SETUP (Refer to Figure 5)

On the SETTINGS screen, select (1) and press (B) to continue. Use cursor
keys (C) to select 6X0 SETUP (2). Press (B) to continue. Use cursor keys
(C) to select the required measurement view for your local legislation. Refer
to Operator’s Manual for details on changing ‘User View’.

Figure 6 Run Duration

Use cursor key (C) to enable DURATION and press Edit (B) to continue.
Use cursor keys (C) to set the Duration time. Press SAVE (B).

MEMORY RESULTS (Refer to Figure 9 and 10)

From MENU screen, use cursor keys (C) to select MEMORY RES ULTS (1)
and press (B) to continue. Use cursor keys (C) to select a Memory Result.
Press (B) to select measurement. Use cursor keys (C) to select VIEW (See
Figure 10 over page). Press SELECT (B) to continue. The selected Memory
Results are displayed. For additional data press VIEW (B).

Figure 8 Cal. Ref. Level

1 – SETTINGS OPTIONS / 2 – RESULTS MEMORY / 3 – INSTRUMENT STATUS /

A – BACK TO PREVIOUS SCREEN / B – MOVE TO NEXT SCREEN / C NAVIGATION

Figure 2 Settings Screen

SET LANGUAGE (Refer to Figure 2)

Select (1) Settings. Press (B) to continue. Use cursor keys (C) to select Language
symbol (4). Press (B) to continue. Use cursor keys (C) to select Language. Press
SELECT (B). Press EXIT (A).

CURSORS

CALIBRATE (Refer to Figure 4)

Fit the acoustic calibrator over the removable microphone and push it home. Press
the acoustic calibrator ON/OFF Key (1). The Instrument detects the signal and
activates the calibration screen (yellow bar). Press (B). The Instrument will be
calibrated and the word PASSED displayed. Remove the acoustic calibrator. Press
EXIT (A) to go back to the Stop screen. Press and hold the acoustic calibrator
ON/OFF Key to switch the calibrator off.

Figure 3 Set Time and date

BACKLIGHT Refer to the Operator’s Manual for details.
RUN DURATION (Refer to Figure 6 and 7)

Use this feature if you require measurement runs of a set time duration.
From the SETTINGS screen use cursor keys (C) to select RUN DURATION
(1). Press (B) to continue. To edit ACTI VATION press EDIT (B). Use cursor
keys (C) to make changes. Press SAVE (B) to continue.

Figure 5 Settings Options

CAL. REF. LEVEL (Refer to Figure 8)

Note this setting should only be accessed if using an acoustic calibrator
whose output level is not exactly 114.0dB. From the SETTINGS screen (see
Figure 2), use cursor keys (C) to select CAL.REF. LEVEL. Press (B) to
continue. The dB Level will be highlighted. Press EDIT (B). Use the cursor
Keys (C) to edit the dB Level. Press SAVE (B) to go back to the Ref. Cal.
Level screen. Press EXIT (A) to go back to Settings menu.

Figure 7 Run Duration

Figure 9 Memory Results

This screen displays detailed specific data for the saved Memory Results
(Figure 10). This is read only data. To view this data in a graphical format,
press View (B). The Octave values saved in the Memory Results are
displayed in a graphical format. Use cursor keys (C) to move the vertical line
across the graph. Each graph bar represents an octave level measured in
Hz or KHz. Press View (B) again to view tabular octave results.

Use the cursor keys (C) to toggle between functions such as LMAX and
LAEQ. To view tabular octave results, press View (B). The results stored for
the octave band graph will display parameters LMAX and LEQ. Press EXIT to
leave the Memory Results or VIEW (B) to cycle the Memory Results screens
again.

Figure 10 Memory Screens.

DELETE MEMORY RESULTS Refer to the Operator’s Manual for details.

TAKING MEASUREMENTS (Refer to Figure 11)

Prior to taking a measurement, the instrument should be in ‘STOP’ mode (red
bars) as shown in Figure 11.

CEL-620A – Press the RUN/STOP Key (D) to go to the broadband (run)
screen.

CEL-620B – OCTAVE screen. Press the RUN/STOP Key (D) to go to the
Octaves (run) screen.

RUN SCREENS

CEL-620A and CEL-620B – The “Play” symbol is displayed in the top

left hand corner of the screen. The “Pause” symbol is in the bottom left
hand corner of the screen. The left hand Soft Key (A) is the
PAUSE/RUN feature. When Pause is selected, ‘PAUSED!’ will be
displayed on the screen. The incremental run number and duration are
always in the top right hand corner of the screen. If the Run Duration
Timer is set, a ‘stopwatch’ icon will appear next to the countdown timer.
The Run Duration timer is enabled and disabled in SETTINGS (Refer to
Figures 6 & 7). If the Run Duration is not set, the digital timer will count
up until the run is stopped manually (by pressing D).

CEL-620A (Refer to Figure 12). The broadband values can be viewed
as a bargraph on the Main screen, or as a graphical time history on the
Graph screen. Pressing View key (B) toggles between Graph and Main
screens.

Figure 12 Main/Graph Screen.

Figure 11 Stop Screens.

CEL-620B (Refer to Figure 13).
The CEL-620B provides two additional octave screens shown in Figure 13.

Use the View key (B) to toggle the four available screens. Use the left/right
cursor keys (C) to move across the frequency bands (1) when in graphical
view. Use up/down cursor keys (C) to toggle between LMAX and LEQ.
Parameters (2).

Each graph bar represents an octave band measured in Hz or KHz. To view
a table of the octave values, press View (B).

The CEL-620B model will display all of the screens shown in Figure 12 and

13.
When the measurement run is finished, press the Run/Stop key (D), a

confirmation screen will be shown, press ‘Yes’ to end run.

STORAGE

Switch the CEL-6X0 off when not in use and remove the batteries if the unit
is not going to be used for extended periods of time. Always protect the
instrument from physical damage and water. It is recommended that the
windshield be used at all times.

Figure 13 CEL-620B Main Run Screens

Casella CEL

Regent House, Wolseley Road
Kempston, Bedford,
MK42 7JY, United Kingdom.
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.cacellacel.com

Casella USA

17 Old Nashua Road #15
Amherst, NH 03031, USA
Toll Free: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.casellausa.com

Casella ESPANA S.A.

Polígono Európolis
Calle C, nº4B
28230 Las Rozas - Madrid
Spain
Phone: + 34 91 640 75 19
Fax: + 34 91 636 01 96
E-mail: [e-mail]
Web: www.casella-es.com

CASELLA CHINA（中国）

地址
北京东城区东方广场W1座911室
邮编: 100738
电话: [phone]
传真: [phone]
电子邮件: [e-mail]
网址: www.casellachina.cn

Field Guide

CEL – 6X0 Series Sound Level Meters

1 – Windshield (Covering Removable Microphone) 2 – Fixed Amplifier

3 – ON/OFF Key 4 – Display 5 – Soft Keys 6 – Navigation Cursor Keys

INTRODUCTION

This Quick Start Guide is to familiarise you with the instrument and get you up
and running quickly. It is assumed this is the first time you have used the
instrument. For this reason we will explain how to install the batteries, switch
ON, setup, calibrate, take measurements and store the instrument.

We want you to get the best performance from the equipment and recommend you refer to the Operator’s Manual for advanced information.

Figure 1 CEL-6X0 Series

7 –Run/Stop Key

HB3339-01 August 2008