OMEGA HHSL402SD ຕົວບັນທຶກຂໍ້ມູນລະດັບສຽງ (30 to 130 dB)
Display Type: LCD with green backlight
Display Size: 52 x 38 mm (2.05 x 1.5')
Parameter Measured: dB
Frequency Range: 31.5 Hz to 8 kHz
Measurement Range: 30 to 130 dB in autoranging mode
User can also select fixed range of 30 to 80 dB, 50 to 100 dB, or 80 to 130 dB
Measurement Weighting:
By Frequency: Frequency weighing uses “A” or “C” standard
By Time: Time weighting is fast or slow (200 or 500 ms response time)
Measurement Accuracy: With “A” frequency weighting: ± 3.5 dB @ 31.5 Hz, 2.5 dB @ 63 Hz, 2 dB @ 125 Hz, 1.9 dB @ 250 Hz, 1.9 dB @ 500 Hz, 1.4 dB @ 1 kHz, 2.6 dB @ 2 kHz, 3.6 dB @ 4 kHz, 5.6 dB @ 8 kHz
Measurement Resolution: 0.1 dB
Data Logging Sampling Time: 1 second to 1 hour
Settable Parameters: Date, time, auto power off, beep sound, sampling time, decimal point or comma decimal division, “A” or “C” frequency weighting, fast or slow time weighting
Storable/Recallable Readings: Maximum, minimum
SD Card Capacity: 1 to 16 GB
Operating Temperature: 0 to 50°C (32 to 122°F)
Operating Relative Humidity: 0 to 85%
Power Supply: Six alkaline “AA” batteries or optional 9 Vdc AC adaptor
Power Consumption:
• 8 mADC (normal operation, with backlight off and SD card not saving data)
• 30 mADC with backlight on and card saving data
• 44 mADC with backlight on and card saving data
Dimensions of Meter: 245 x 68 x 45 mm (9.65 x 2.68 x 1.77')
Weight of Meter: 489 g (1.08 lbs)
Comes complete with sound wind shield ball, 6 “AA” batteries, hard carrying case, 2 GB SD memory card, and operator’s manual.
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ