The Sound Level Meter Model CA832 is designed to assess sound ambiences or nuisances in accordance with international safety and quality standards. It complies with standard IEC 651.
The Model CA832 is a portable, compact instrument with a 2000-count backlit LCD. It is designed for simple, one-hand operation and may be fitted on a tripod for long duration measurements. It features two weighting curves A and C for measurement, integrating the sensitivity of the human ear according to sound frequency.
Curve A is the general-purpose curve in an industrial environment, and C is more suited for measuring low frequency sounds. Also, mode "F" (fast response time) corresponds to the response time of the ear. Mode "S" (slow response time) can be used to obtain a uniform reading when the sound signal level shows fluctuations.
| Specifications |
| Measurement Range |
Lo : 37 to 80dB
Med: 50 to 100dB
Hi: 80 to 130dB |
| Accuracy |
±1.5dB (ref. 94dB @ 1 kHz) |
| Resolution |
0.1dB |
| Precision |
±2.0dB |
| Measurement Rate |
2.5 times per second |
| Dynamic Range |
50dB |
| Frequency Range |
31.5 to 8000Hz |
| Frequency Weighting |
Curves A and C |
| Time Weighting |
Slow (S) and Fast (F) |
| Microphone |
Electret condenser microphone |
| Auxiliary Output |
AC: 1.0Vrms (600Ω impedance)
DC: 10mV/dB (50Ω impedance) |
| MAX Function |
Yes |
| Display |
3½ digit backlit LCD, 2000-count |
| Power Source |
1 x 9V alkaline battery (included) |
| Low Battery Indication |
Yes |
| Dimensions |
9.33 x 2.36 x 1.5” (237 x 60 x 38mm) |
| Weight |
Approximately 8.11oz (230g) including battery |
| Operation Temperature |
32 to 122°F (0° to 50°C) |
| Storage Temperature |
-4 to 140°F (-20° to 60°C) |
| Applicable Standard |
IEC 651 type 2, ANSI S1.4, JIS C 1502 |
| Ingress Protection (IP) |
IP44, instrument must be fitted with its shockproof housing |
| Electromagnetic Compatibility |
EN50081-1 (Ed. 1992), EN50082-1 (Ed. 1992) |
