The CEL-350 is now rated intrinsically safe. The CEL-350 Micro Noise Dosimeter is a completely new interpretation of the classic noise dosimeter. It has all the advantages of earlier badge designs such as small size and light weight and yet it still provides all of the benefits that users have come to expect from a traditional noise dosimeter. Fully featured and able to satisfy all current noise at work measurement protocols during a single run the CEL-350 will be an ideal instrument for experienced and new users of dosimeters in the workplace. No setup to worry about since the unit stores all results for later investigation and reporting however required.
Applications
The CEL-350 dBadge micro noise dosimeter is designed to satisfy all current workplace noise protocol methods for the collection of personal noise data. Careful attention to the requirements of both US and European noise dosimetry methodologies provides for the simultaneous storage of the noise levels in such a way that the dose values an be obtained with both the widely used exchange rates (or Q factor) using the 3 and 5 dB doubling rates. This means that a single measurement run can be taken and the noise levels assessed to both the US OSHA and NIOSH or the European ISO legislation. Four time history profiles are saved with the Q=3 and Q=5 time average value plus the C and the Z peak levels. The dosimeter calculates and displays the % noise dose value plus the Lavg for the run. The CEL-350 will be an ideal unit for industrial hygienists or company safety officers charged with monitoring the noise exposure of workers particularly in situations where a conventional noise dosimeter with a remote cable microphone might not be the most convenient method.
Operation & Use
A simple drop in rapid battery charger system provides a quick 90 min maximum recharging time for the built in NiMH battery pack. The dBadge can run for up to 32 hours giving 4 full 8 hour shifts under normal conditions. A 30 min charge will give adequate operational time for a full 8 hours run. An integral 2 line display shows the main noise results and confirms the acoustic calibrations before and after the actual run. The unit can be easily locked to prevent tampering by the wearer.
A brand new dedicated download database program called Insight compliments the dBadge system allowing all the stored data to be downloaded and analyzer according to whatever format the user requires. Multiple reports an be obtained from the same data without needing to remeasure the noise. This saves both data collection time and analysis time on the PC. Unique identifies can be uploaded to the dBadge to uniquely identify units in multiple measurement kits.
Benefits
- Lightweight less than 2.4 ounces
- Small size only 2.8"L x 1.7"W x 2.0"H
- Quick battery recharge in less than 90 minutes from completely empty
- Stores everything for later review
- Calculates all the popular noise dose parameters
- Time history profiling of 4 results at fixed 1 minute intervals
- Wide dynamic range from 65 to a full 140 dB
- Measures simultaneously 3 dB and 5 dB exchange rates
- Lockable for security
- Direct automatic calibration with standard acoustic calibrator with ½" cavity
Specifications
| Acoustic Accuracy |
ANSI S1.25, IEC61252 2002 Personal sound exposure meters |
| Dynamic Range |
65 to 140 dB |
| Frequency Weightings |
A for rms values plus Z and C for peak measurements |
| Time Weightings |
Slow for Q=5 data plus non for Q=3 data as required for standards |
| Exchange Rates (Q dB) |
5 and 3 simultaneously |
| Threshold Level (dB) |
Any levels from 70 to 90 in 1 dB steps |
| Criterion Level (dB) |
Any level between 70 and 90 in 1 dB steps |
| Microphone Capsule |
Removable ½" type 2 device can be calibrated with any standard acoustic calibrator using ½" diameter cavity |
| Calibration Method |
Automatic recognition and calibration to user set dB level |
| Display Screen |
96 x 26 pixel graphics LCD with 2 line text messages |
| Alarm Warning Indicators |
Red and blue LEDs showing level noise exceedances during run |
| Indicators |
2 stage hi intensity LED's for memory, battery or noise warnings |
| User Controls |
2 push buttons for On/Off and OK/Accept |
| Case Molding |
High impact ABS plastic molding |
| Battery Pack |
Two half AAA size NiMH rechargeable cells |
| Battery Life |
32 hours continuous, unit gives expected remaining battery life in hours when switched on by fuel gauge display icon |
| Charging Unit |
3 way dBadge master charger base with drop in charging via connections on back of dBadge casing |
| Memory Storage |
At least 180 hours at 4 profiles every minute with unit showing remaining memory recording time in hours when switched on |
| Stored Profile Values |
Lavg(Q=5), LZpk, Leq(Q=3), LCpk |
| Storage Interval |
Fixed 1 minute for all 4 results simultaneously |
| Real Time Clock |
Date and time stamp on all calibration data and profile results |
| Fixing Method to Worker |
Various fixing clips provided for clothing and hard hat mounting |
| Microphone Protection |
Lockable foam windscreen to protect microphone |
| Security Features |
dBadge can be locked prior to being left on worker to prevent tampering - showing only duration and run in progress on display |
| Localization of Menus |
Up to 5 standard languages can be selected for screen prompts, English, Spanish, French, German, Italian |
| Identification of Multiple Units |
2 line text string can be uploaded form dB35 PC program |
| Size |
2.8" x 1.7" x 2.0" |
| Weight |
2.4 ounces |
Ordering Information
All kits include the CEL-350 dBadge dosimeter with various fixing clips and foam windscreen, CEL-110/2 acoustic calibrator, 3 way charger base and power supply, slave charger, infrared download adapter, RS-232 to USB adapter, PC software and case. For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.
| Description |
Catalog No. |
| Single Pack dBadge Noise Dosimeter Kit |
CEL-350/K1 |
| Twin Pack dBadge Noise Dosimeter Kit |
CEL-350/K2 |
| Five Pack dBadge Noise Dosimeter Kit |
CEL-350/K5
|
| Ten Pack dBadge Noise Dosimeter Kit |
CEL-350/K10
|
| Single dBadge Micro Noise Badge Unit with Mounting Clip and Windscreen |
CEL-350
|
| Class 2 Acoustic Calibrator, 114 dB at 1 KHz |
CEL-110/2
|
| 3 Way Drop in Rapid Master Charger including PC18 Universal Power Supply |
CEL-6350
|
| Slave Charger Unit and Link Cable to Master Charger for up to 3 additional dosimeters |
CEL-6358
|
| dB35 Windows based download and database software package |
CEL-6357
|
| Infrared Adapter for PC Download and Programming |
CMC39
|
| Multi Pack Kit Case for 10 dBadge Dosimeters |
CEL-6355
|
Downloads
CEL-350 dBadge Micro Noise Dosimeter Literature