CUSTOM Digital Sound Level Meter SL-1330

Sound pressure levels can be measured from 30dB to 130dB using auto-range and manual range operation.

• Frequency response: A-weighting / C-weighting, Dynamic response: FAST/SLOW switchable
• Equipped with hold function and analog display
• Equipped with an auto power off function to reduce battery consumption

Supports A/C characteristics and FAST/SLOW switching.

It supports both "A-weighting," which is close to human hearing and is used for general noise measurement, and "C-weighting," which is suitable for measuring sound pressure levels with a high level of low frequency components such as impact sounds. It is also possible to switch between "FAST" weighting (time constant: 125 ms), which provides measurements close to the response time of the human ear, and "SLOW" weighting (time constant: 1 s), which provides measurements of the average level of fluctuating noise.

Supports two types of display: "analog display" and "digital display."

It supports two types of display: an "analog display" (bar graph) that allows you to instantly recognize the amount of change, and a "digital display" that allows you to instantly check the measurement value.

Part names

Main unit

• ① Windscreen (microphone)
• ② Display section
• ③ Frequency weighting characteristics (A characteristic/C characteristic) selection button
• ④ Maximum/minimum value hold button
• ⑤ Range (auto/manual) selection button
• ⑥ Dynamic characteristics (FAST / SLOW) selection button
• ⑦ Power button
• ⑧ Battery cover
• ⑨ Tripod mounting part

Screen display section

• ① Lower limit of measured value
• ② MAX (maximum value) hold function enabled display
• ③ MIN (minimum value) hold function enabled indicator
• ④ Time weighting characteristics: High speed display
• ⑤ Time weighting characteristics: slow display
• ⑥ Upper limit display of measured value
• ⑦ Measurement range
• ⑧ Analog Range
• ⑨ Measurement value (digital)
• ⑩ Battery level warning display
• $j Auto range function enabled indicator
• $k Function enabled when measurement value is held
• $l Frequency weighting: C characteristic valid display
• $m Frequency weighting characteristics: A effective display
• $n Auto power off function enabled indicator

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specification

Electrical Performance

Frequency response	A characteristic/C characteristic
Frequency Range	31.5 Hz to 8 kHz
Measurement range	Lo: 30 dB to 80 dB Mid: 50 dB ~ 100 dB Hi: 80 dB ~ 130 dB Auto: 30 dB to 130 dB
resolution	0.1 dB
sampling	Approximately 2 times/second
Accuracy	±1.4 dB (94 dB, at 1 kHz)
Dynamic characteristics	FAST (time constant 125ms) SLOW (time constant 1s)

General specifications

Auto Power Off	Approximately 15 minutes (can be canceled)
Operating temperature and humidity	0 to +50°C, 80% RH or less (no condensation)
Storage temperature and humidity	-10 to +60°C, 10 to 75% RH (no condensation, batteries not included)
size	Approx. W 62 × H 188 × D 32 mm (excluding windshield and buttons)
weight	Approximately 156 g (excluding batteries)
power supply	9V battery x 1
battery life	Approximately 30 hours (when using alkaline batteries)
accessories	Windscreen, instruction manual, storage case, adjustment screwdriver, 9V battery x 1
Compliance standards	IEC61672-1 Class 2
proofreading	Possible
JAN	4983621180053