Description

SC-1 ACOUSTICAL CALIBRATOR INCLUDING CA-1/2″ & CA-1/4″ ADAPTER

The SC-1 sound calibrator is a single-frequency dual-amplitude, self contained field calibrator used to quickly and precisely verify the accuracy and the sensitivity of microphones.

The unit generates a 1kHz reference tone at 94 and 110 dB SPL. The SC-1 consists of an amplitude-switchable constant frequency oscillator, a transducer and a microphone coupler. The coupler accepts a large variety of microphones.

Rational offers this unit pre-packaged in a carrying case with both the 1/2″ and 1/4″ adapters as well as with operating instructions and factory certified calibration chart. The calibrator uses a single 9 Volt battery (included).

NOTE:  The Rational RTA420 requires the 10mm calibrator adapter for use with the SC-1. 

Spec:

• Frequency 1kHz +- 0.2%
• SPL 110dB – 94dB switchable
• Accuracy +- 0.5dB at 20 Grad Celsius and 1013 mbar
• ambient temperature range 0 – 45 Grad Celsius
• Temperature drift < 0.02dB per Grad Celsius
• Temperature drift frequency: < 0.05Hz per Grad Celsius
• Storage temperature range -25 – 55 Grad Celsius (without battery)
• humidity 5 bis 95% relative
• Power supply 9V battery or accumulator
• Housing Aluminium, PVC
• Dimensions Dia. 40mm, Length 132mm
• weight (without battery) 164g