SV 30A Class 1 Acoustic Calibrator operates on two levels 94 dB and 114 dB. The design of this calibrator is based on the dedicated ½ condenser microphone and microprocessor controlled signal source including digital static pressure and temperature compensation. These both features assure excellent stability of the calibration levels and their frequency. The SV 30A calibrator offer exceptional price versus performance ratio on the world market. With the SV30A acoustic calibrator it is possible to calibrate the ½ microphones and ¼ microphones using SA30 diameter reduction.
FEATURES
Calibration signal parameters: | |
| Sound Pressure Level (SPL) | 114 dB or 94 dB |
| Accuracy to IEC 60942:2003 | Class 1 |
| SPL accuracy | ± 0.3 dB |
| Frequency accuracy | ± 0.2 % |
| Total Harmonic Distortion (THD) | < 0.25 % for 94 dB < 0.75 % for 114 dB level |
General Information | |
| Effective load volume sensitivity | 0.00027 dB / mm3 0.00027 dB / mm3 |
| Level stabilisation time | typically 7 s, max 10 s |
| Calibrated microphones | 1/2” and 1/4” with SA 30 adapter |
| Storage temperature range | -25oC ÷ +70oC |
| CE classification | EMC: EN 50081-1, EN 50082-1 EN 61010-1 Safety: EN 61010-1:2001 |
Working Conditions | |
| Temperature range | from -10 °C to +50 °C (related SPL error ≤ ±0.15 dB) |
| Atmospheric pressure range | from 65 kPa to 108 kPa (related SPL error ≤ ±0.10 dB) |
| Humidity range | from 25 % to 90 % RH (related SPL error ≤ ±0.05 dB) |
Reference conditions: | |
| Ambient temperature | 23 oC |
| Atmospheric pressure | 101.3 kPa |
| Humidity | 30 % ÷ 80 % |
| Effective microphone load volume | 250 mm3 for microphone type B&K 4134 |
Power supply: | |
| Battery type | 2 x LR03 (IEC) / AAA (ANSI) alkaline batteries |
| Continuous operating time | 40 hours for 94 dB level 30 hours for 114 dB level |
| Stand-by period | around two years (auto switch ON / OFF) |
| Minimal voltage requirements | 2.1 V |
*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.