CRYSOUND CRY2830 Series Sound Level Meter User Manual

The CRY2830 Series Sound Level Meter is designed to meet Class 1
and Class 2 requirements for accurate acoustic measurements. It
features statistical analysis, data logging, wireless control, and
a 2.8 inch high-resolution color TFT display.

Technical Specifications

The device has a linear range of 25-140dBA, time and frequency
weightings, sampling rate of 48kHz, A/D resolution of 24-bit, and
various measuring parameters such as Lp, Leq, TWA, etc.

Instructions For Use

Power key: Tap to start or press for 5s to
shut down the SLM.

FAQ (Frequently Asked Questions)

1. What is the warranty period for the CRY2830 Series Sound
Level Meter?

The device comes with a one-year warranty covering defects in
materials and workmanship under normal use.

2. How can I contact customer support?

You can contact CRYSOUND via phone at 0571-88225198 or email at
info@crysound.com.

3. Can I store the device near heat sources?

No, it is advised not to store the equipment near heat sources,
flames, or in a hot environment to prevent damage.

“`

View Fullscreen

CRY2830 Series Sound Level Meter User Manual
1

Warranty Statement
We proudly offer a one-year warranty on the CRY2830 Series Sound Level Meter device, ensuring it meets the highest standards of quality and performance. This warranty covers defects in materials and workmanship under normal use. Coverage Details:
· Warranty Period: One year from the date of purchase. · What’s Covered: Defects in materials or workmanship that occur under normal use. · What’s Not Covered: Damage caused by misuse, unauthorized modifications, accidents, or external factors. To request a warranty service, please contact our customer support team with your proof of purchase. We will repair or replace the device at our discretion.
2

Contact us Hangzhou Headquarters
Tel: 0571-88225198, 0571-88225128 E-mail: info@crysound.com Add: No.10, XianqiaoRoad, ZhongtaiStreet, YuhangDistrict, Hangzhou, Zhejiang Province,China Web: www.crysound.com
Houston Office
Add: 13777 Stafford Point Dr, Stafford, TX 77477, US Tel: +001-877-215-7752
3

Safety Use Instructions
To prevent possible fire or personal injury:
Please read the contents of this safety notice carefully before using the product.
Use the product only for its intended purpose. Unauthorized opening of the unit will void the warranty.Contact
CRYSOUND for more information. Stop using the device if it malfunctions or heats up abnormally. Please contact the manufacturer for equipment repair work. Do not store the equipment near heat sources, flames or in a hot
environment. If the storage time is longer than 1 month, please store the product at
an ambient temperature of less than 40/ 140.
4

Catalog 1 Introduction …………………………………………………………………………………………….. 7
1.1 About This Manual ………………………………………………………………………….7 1.2 About the CRY2830 Series …………………………………………………………….7 2 Technical Specifications …………………………………………………………………………8 3 Instructions For Use ……………………………………………………………………………….10 3.1 Preparations ………………………………………………………………………………….. 10 3.2 Power on ………………………………………………………………………………………… 11 3.3 Setup ……………………………………………………………………………………………… 12
3.3.1 Display Settings …………………………………………………………………… 12 3.3.2 Storage ……………………………………………………………………………….. 13 3.3.3 Date& Time …………………………………………………………………………. 13 3.3.4 Language ……………………………………………………………………………..13 3.3.5 About …………………………………………………………………………………… 13 3.4 Calibration ……………………………………………………………………………………..14 3.5 Measurement Parameters Table ………………………………………………….. 15 3.6 Use of the Testing App ………………………………………………………………….. 15 3.6.1 Parameter Interface ……………………………………………………………. 15 3.6.2 Data …………………………………………………………………………………….. 18 3.6.3 Record …………………………………………………………………………………. 18 3.6.4 Printer …………………………………………………………………………………..19 3.7 Use of the 1/1 OCT App …………………………………………………………………. 20 3.7.1 Parameter Interface …………………………………………………………….20 3.7.2 Setting ………………………………………………………………………………… 20 …………………………………………………………………………………………………………………….20 Appendix A: Table of Measured Values ………………………………………………………21 Appendix B: Free Field Response of The Sound Level Meter At Different Incident Directions ………………………………………………………………………………………22
5

Appendix C: CRY333 Typical Frequency Response (0° Incidence Angle) .. 23 Appendix D: Firmware Upgrade ………………………………………………………………… 24
6

1 Introduction 1.1 About This Manual
This user manual describes the CRY2830 Series Sound Level Meter and is divided into the following sections: Introduction Technical Specifications Instructions For Use Appendix
1.2 About the CRY2830 Series
CRY2830 Series sound level meters meet the stringent requirements of Class 1 and Class 2 ensuring accurate and reliable acoustic measurements. Functions such as statistical analysis, data logging, wireless control and transmission are included. The CRY2830 Series’ design balances esthetics and ergonomics. They feature a 2.8 inch high-resolution, color TFT display and simple ergonomic controls. Data can be stored on an internal TF memory card for easy transfer to external analysis systems.
7

2 Technical Specifications

Type

Technical Specifications

CRY2834

CRY2833

Microphone

CRY331( -28±2dBV/Pa

CRY333( -26±2dBV/Pa

Pre-amplifier

CRY2830PA-1

Linear range

25-140dBA

Time weighting

F, S, I

Frequency weighting A, C, Z

Sampling rate

48kHz

A/D resolution

24-bit

Frequency range

20Hz-12.5kHz

10Hz-20kHz

Applicable standards IEC 61672-1:2013

Accuracy

Class 2

Class 1

Lp, Leq,t, Lpeak, Leq,T, Lmax, Lmin, SEL, Lex8h, LAVG, TWA, Measuring parameter
DOSE, Ln(n=5, 10, 50, 90, 95), SD, E

Measurement

Integral Measurement, Statistical Analysis, 1/1 Oct, Sound

function

Exposure Measurement, Monitoring

Display

320*240 TFT Display

Battery

4*AA

Operating time

24 hours(Screen off)

Interface

AC/DCPWMUSBRS232

Memory Reference level Calibration External power supply Operating

32 GB TF card 94dB@1kHz/114dB@1kHz Sound Calibrator Class 1 or Class 2 5V DCUSB Type-C4*AA battery
-20~+60

temperature range Humidity range Weight Size Operation

90% RH 330g L*W*H=249x76x30.5mm Button

3 Instructions For Use
Power key Power on: Tap to start the SLM. Power off: After pressing 5s, the device will automatically shut down.
Confirm key Press to select the interface aggregation box, then you will enter the corresponding page or implement the corresponding function.

Back key Return to the previous menu.
Arrow keys Four directions to move the cursor selection.
Recording key Start, Stop, and Pause recording.

USB Type-C Power Supply

RS232 communication port

DC Power Supply

Heaphone monitoring

TF Card Slot
3.1 Preparations
1) Check whether the microphone and the preamplifier are properly installed.
10

2) Check whether the battery is sufficiently charged. 3) If necessary, use a sound calibrator to calibrate the sound level meter before using. 4) The sound level meter should be regularly (e.g., once a year) sent to a calibration department for verification to ensure its accuracy.
3.2 Power on
1) Before official use, install four new AA batteries to ensure the device operates normally during measurements. 2) Press the power button for 1-2 seconds until the startup animation appears on the screen. The screen will then display the measurement main interface.
11

3.3 Setup
From the main interface screen, simply press the “Confirm” button to enter the “Setup” screen. The Setup screen provides access to display settings, storage, date & time, language settings and device information.
3.3.1 Display Settings
In the “Display Settings,” users can adjust the screen brightness using the left and right buttons, and set the screen timeout below. The
12

device defaults to 50% brightness and does not automatically turn off the screen.
3.3.2 Storage
Users can view the TF card usage status on this screen.
3.3.3 Date& Time
In this interface, users can manually set the time according to the specified format.
3.3.4 Language
In the “Language” section, users can switch between Chinese and English.
3.3.5 About
In the “About” section, users can view device information, as well as perform authorization and upgrade operations. For information on the operations regarding authorization and updates, please see the appendix.
13

3.4 Calibration
Users can click “Calibration” to enter the “Calibration” app. The “Calibration” interface displays the current sound pressure level and the microphone sensitivity. Users can set the microphone model, and the corresponding free-field correction value will change accordingly, with CRY2832 defaulting to the CRY331 sensor and CRY2833 defaulting to the CRY333 sensor. Users can select from four different calibration signals. When the calibrator is connected and producing a stable sound, users can press “Start” to begin calibration. After calibration, the sensitivity will automatically update. If there are significant fluctuations in the sound signal during calibration, it may fail. We recommend to use a 114dB sound source in high background noise conditions for calibration. Users can view the “Calibration History” in the “History” section and can select specific calibration records for deletion.
14

3.5 Measurement Parameters Table

Parameters Lp, Lmax, Lpeak

SLM(Basic)

SLM

Leq, Lmin

Statistics

1/1 OCT

Ln(n=510 5090 95),SD 1/1 OCT

3.6 Use of the Testing App
The use of the SLM and statistics app on the sound level meter is quite similar. Below are the instructions for usage.

3.6.1 Parameter Interface
The sound level meter contains two measurement parameter interfaces, where users can set 3 or 5 test parameters on each interface. By clicking on a test parameter, users can enter the parameter selection and return to the parameter interface.
15

The third interface is the curve mode. When the test begins, the device will automatically plot the curves of LAeq, LCpeak, LAFmax, displaying the value changes for up to the past 30 seconds.
Users can click the “Test” button to start testing. During the test, a long press on the “Test” button will pause the test, while a short press will stop the test.
When users switch to the “Settings” interface, they can configure the test mode, view data playback, set recording options, and choose
16

printing methods. In the “Test Mode” settings, users can select from “Auto” , “Custom” , “Timing”, “Trigger”, and “Delay” test modes. The meanings of each test mode are as follows: Auto: Test duration, test interval and repetition times can be set. After pressing the start measurement button, the test will be conducted according to the set test parameters and stored automatically. Custom: Manually start a measurement and manually stop the measurement in the main interface operation button area. Timing: You can set the test duration and start test time in the setting interface, and when it reaches the start test time, it will automatically start measuring and stop after reaching the test duration. Trigger: The test duration and threshold value can be set in the setting interface. When the LAF reaches the set threshold value, the test will start automatically and the test time will be the test duration set by the user. Delay: Users can set the duration for the delay. After pressing the test button, the device will not start testing immediately but will begin after the specified delay duration.
17

3.6.2 Data
Users can click on “Data” to enter the data viewing list. When the TF card is inserted, the test data will be automatically saved to the TF card. Users can find the corresponding test data files based on the test time, and click to review the data . This feature only supports viewing the last second of data for all data displayed in the list. If you need to view all parameters during the test, you can insert the TF card into the computer to view the CSV data file.
3.6.3 Record
The recording function is under development.
Users can click on “Record” to enter the recording settings interface. Press the “Confirm” button to control the start and stop of recording.
18

This device supports two recording modes: automatic(auto) and triggered. Below is an explanation of the two recording modes: Auto: Start recording as soon as you start the test, no need to set the recording duration. Trigger: you can set the recording duration as needed, when the LAF reaches the set threshold, it will automatically start recording, and the test time will be the recording duration set by the user.
3.6.4 Printer
Users can click on “Print” to enter the print settings interface. The printing feature is under development.
19

3.7 Use of the 1/1 OCT App
1/1 OCT measurement operation is similar to total value integration and can refer to 3.6. Below is an introduction to the interface display.
3.7.1 Parameter Interface
As shown in the figure, this is the display interface for the 1/1 octave band. Once entered, users can select measurement parameters and display frequencies using the up and down keys. The left and right keys are used to switch between the measurement interface and the settings interface.
3.7.2 Setting
Users can enter the “Settings” interface by using the left and right arrow keys. For detailed operations, please refer to section 3.6.
20

Appendix A: Table of Measured Values

Measured Values

Sound pressure level

Leq

Equivalent continuous sound level

Lmax

Maximum sound level

Lmin

Minimum sound level

Lpeak

Peak sound level

Percentile sound level

For CRY2833, the accuracy of LN is 0.2 dB and it

only supports simultaneous calculations for one

type of weighting among A, C, and Z.

Appendix B: Free Field Response of The Sound Level Meter At Different Incident Directions
22

Appendix C: CRY333 Typical Frequency Response (0° Incidence Angle)
23

Appendix D: Firmware Upgrade
1- Remove the TF card and connect it to the computer, then place the update folder in the root directory of the TF card.
2- Insert the TF card back into the device, power it on. 3- Go to Settings – About – Upgrade interface. Select the “cry283x” folder and press the “Confirm” key to start the upgrade. 4- Note that the device must remain powered on during the upgrade process; otherwise, the upgrade will fail. 5- After the upgrade is complete, the device will automatically power on.
24

Documents / Resources

CRYSOUND CRY2830 Series Sound Level Meter [pdf] User Manual
CRY2830 Series Sound Level Meter, CRY2830 Series, Sound Level Meter, Level Meter, Meter

References

User Manual

CRYSOUND CRY2830 Series Sound Level Meter User Manual

CRY2830 Series Sound Level Meter

Specifications

Product Usage Instructions

Safety Use Instructions

Introduction

Technical Specifications

Instructions For Use

FAQ (Frequently Asked Questions)

1. What is the warranty period for the CRY2830 Series Sound
Level Meter?

2. How can I contact customer support?

3. Can I store the device near heat sources?

Documents / Resources

References

Leave a comment

Cancel reply