Industrial Dosemeter, personal sound exposure meter - GA257B
Backorder Now, once ordered your item will dispatch before the 23rd of May 2025, call 1300 737 871 (NZ 0800 737 871 to confirm).
Industrial Dosemeter, personal sound exposure meter. Personal Dosemeters are ideal for measuring the exposure of employed persons to noise. Castle Dosemeters are small, tough, lightweight and easy to use.
Regular price
$1,369.10 AUD
+ GST
$1,506.01 AUD Inc. GST
$1,506.01 AUD Inc. GST
The SONUS Pocket Dosemeters are designed to be powerful and easy to use. These dosemeters are small and tough so measurements and data can be collected throughout the working period. Data can be reviewed on screen or downloaded to a PC for further analysis.
The SONUS GA257B is a dedicated basic dosemeter fully compliant with IEC 61252:1993, giving simultaneous sound exposure (Lep'd) and maximum peak (Zpeak) measurements, an essential feature for Noise at Work Regulations assessments.
The GA257 noise dosemeters are easy to use and have a clear display allowing data to be read on screen. The keypad can be locked to prevent any measurements being accidentally stopped or altered. The data is stored on flash memory at user selected intervals. The built in software for this meter is designed to suit future upgrading for feature enhancements, legislative changes or instrument upgrades. With the Castle SONUS Dosemeters you will always be in step with the law.
Parameters measured:
The SONUS GA257B is a dedicated basic dosemeter fully compliant with IEC 61252:1993, giving simultaneous sound exposure (Lep'd) and maximum peak (Zpeak) measurements, an essential feature for Noise at Work Regulations assessments.
The GA257 noise dosemeters are easy to use and have a clear display allowing data to be read on screen. The keypad can be locked to prevent any measurements being accidentally stopped or altered. The data is stored on flash memory at user selected intervals. The built in software for this meter is designed to suit future upgrading for feature enhancements, legislative changes or instrument upgrades. With the Castle SONUS Dosemeters you will always be in step with the law.
Parameters measured:
- User selectable Exchange Rate (3dB, 4dB or 5dB)
- User selectable Criterion Level (75dB, 80dB, 85dB or 90dB)
- User selectable Threshold Level (-5dB, -10dB or OFF)
- Zpeak
- % Dose
- Lep'd (Lex)
- % DOHR (Dose/Hour)
- Pa2h (Lep'd expressed in Pascals)
- Exposure Time
- Lockable Keypad
- Constructed from tough crack resistance plastic
Standards: IEC61672-1-2002 (Sound Level Meters), IEC61252-1993 (Personal Sound Exposure Meters)
Linear Operating range: 70dB
Detector Characteristics: RMS and Peak
Exchange rate: 3dB, 4dB or 5dB
Criterion Level: 75dB, 80dB, 85dB or 90dB
Threshold Level: -5dB, -10dB or OFF
Peak: 3dB above top of selected range
Display: Custom alphanumeric LCD, digit size 7mm x 5mm
Memory: 4800 Data Intervals Maximum
Calibration: 91.0 to 120.0dB @ 1KHz
Batteries: 1 x PP3 (9V) Approximately 12 hours continuous use
Operating Temperature: Operating Range: -10 to + 50 C
Humidity: Effect: < 0.5dB from 25% to 90% RH
Vibration: No effect on instrument
Processing: A to D Converter: 12-bit, 325kHz sampling. 8MHz, micro-controller
Dimensions: 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height)
Microphone cable length: 800mm (including rubber sleeve and microphone)
Weight: 220g (including battery)
Linear Operating range: 70dB
Detector Characteristics: RMS and Peak
Exchange rate: 3dB, 4dB or 5dB
Criterion Level: 75dB, 80dB, 85dB or 90dB
Threshold Level: -5dB, -10dB or OFF
Peak: 3dB above top of selected range
Display: Custom alphanumeric LCD, digit size 7mm x 5mm
Memory: 4800 Data Intervals Maximum
Calibration: 91.0 to 120.0dB @ 1KHz
Batteries: 1 x PP3 (9V) Approximately 12 hours continuous use
Operating Temperature: Operating Range: -10 to + 50 C
Humidity: Effect: < 0.5dB from 25% to 90% RH
Vibration: No effect on instrument
Processing: A to D Converter: 12-bit, 325kHz sampling. 8MHz, micro-controller
Dimensions: 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height)
Microphone cable length: 800mm (including rubber sleeve and microphone)
Weight: 220g (including battery)
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