| Reference level |
114.0 dB SPL |
| Reference level range |
Single large range for SLM Normal for OBA option |
| Reference frequency |
1000 Hz |
| Reference direction |
0° is perpendicular to the microphone diaphragm |
| Temperature ≤ ± 0.5 dB error between |
≤ ± 0.5 dB error between -10° C and 50°C |
| Storage temperature |
-20°C to 70°C |
| Humidity |
≤ ± 0.5 dB error from 30% and 90% relative humidity at 40°C |
| Equivalent microphone impedance |
12 pF for Larson Davis 1/2" microphone |
| Range level error (OBA option) |
≤ ± 0.1 dB relative to the reference range |
| Digital Display Update Rate |
Four times per second (0.25 sec between updates). First display indication is available 0.25 seconds after initiation of a measurement |
| Electrostatic Discharges |
The instrument is not adversely affected by electrostatic discharges |
| Extended weather options |
-40 °C to +70 °C operation with CER-831-E |
| Resolution Specifications |
| Levels |
0.1 dB |
| Dose |
0.1% |
| Elapsed time |
0.1 second |
| Real time clock |
1 second |
| Calendar |
01 Jan 2008 - 31 Dec 2038 |
| Integration Time |
| Time averaged Levels and Sound Exposure Levels (s) |
| Minimum |
0.1 second |
| Maximum with daily autostore enabled |
Unlimited |
| Maximum with daily autostore disabled |
> 23 days with error > 0.5 dB |
| Dosimeter Metrics: TWA, Dose (s) |
| Minimum |
0.1 second |
| Maximum |
Unlimited |