Hardware Features | |
Number of channels | 2 |
Auto-calibration | Yes |
Keyboard lock | Yes |
Communication Interfaces | USB |
LED indicator | Yes |
Display | Yes |
Keyboard | 4 buttons |
Memory | 32 GB |
Battery type | Two AA batteries (alkaline) |
Operating time | > 16 h |
Operating temperature range | from -10’C to 50’C |
Humidity range | up to 90 % RH |
Weight | 260g |
Size | 95 x 83 x 33 mm |
Sound measurements features | |
Standards | IEC 61252; ANSI S1.25-1991; Class 1: IEC 61672-1:2013, ISO 11904-1 |
Microphone type | ACO SV 7052E, prepolarised, 1/2” ; SV 25S, special microphone with probe for MIRE |
Preamplifier type | SV 15 |
Linear operating range to IEC 61672 | 45 dBA Leq÷ 141 dBA Peak |
Frequency range | 20 Hz ÷ 20 kHz |
Weighting filters | A, C and Z |
Time constants | Slow, Fast, Impulse |
Statistics in octaves or third octaves | Yes |
Audio recording | option |
Voice coments | Yes |
1/1 octave | option |
1/3 octave | option |
Class 1 Dual-Channel Noise Dosimeter
The Class 1 Dual-Channel Noise Dosimeter is designed to provide accurate noise exposure measurements in diverse working environments, especially those with asymmetric or directional noise. Its dual-channel functionality allows for simultaneous noise assessment on both sides of the head or in configurations such as underneath a headset and on a shoulder. This improves accuracy, particularly when noise sources are unbalanced. Additionally, the dosimeter supports a Class 1 frequency range, covering 20 Hz to 20 kHz, meeting the requirements of ISO 9612 for precise noise evaluation in high-frequency environments.
Equipped with audio recording and 1/1 octave analysis, this dosimeter enhances unattended noise measurements, enabling playback of recorded noise to distinguish between work-related and non-work-related sources. The MIRE measurement feature further expands its capabilities, offering specialized noise exposure assessment in environments like call centers and aviation. Key Features: |