ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
- Standard compliance: IEC 651 type 2
- Type of microphone: Condenser microphone
- Measurement range: 4 measurement ranges from 30 dB to 130 dB
30 dB to 80 dB
50 dB to 100 dB
80 dB to130 dB
30 dB to 130 dB (auto-range)
- Display: LCD
+Digital: 4 digits. Resolution: 0.1 dB. Display update: 0.5 s
+Analogue: 50 segment bargraph. Resolution: 1 dB. Display update: 50 ms
- Accuracy: ± 1.5 dB
- Frequency dynamics: 31.5 Hz to 8 kHz
- Frequency weighting: A & C curves (as per IEC 651)
- Time weighting
FAST: 125 ms
SLOW: 1 s
- RS232 input / output signal: 9600 bps / no parity / 8 bits / 1 stop bit
- Memory: 32,000 data (acquisition rate from 1s to 1h)
- Utility software: for WINDOWS 95 / 98 / NT 4.0 or higher version
- Analogue output
+ AC output: 1 VRMS at full scale. Impedance:100 Ω
+ DC output: 10 mV / dB. Impedance:1 kΩ
- Dimensions: 205 x 60.5 x 38 mm
- Weight: 230 g
The C.A 834 Recording Sound Level Meter is designed to evaluate acoustic environments or noise pollution in compliance with the applicable legislation. It comes in a compact, rugged casing and has a very large recording capacity of 32,000 values.
