Name: Enviro Test Construct Integrating-Averaging Sound Level Meter -
SKU: ETCSMC-121

Features

Compliance with Standards: GB/T 3785-2010, IEC 61672:2013, Class 1 or Class 2
Microphone: Utilizes a project measurement microphone
Time Weighting Options: Fast (F), Slow (S), Impulse (I)
Integrating Time: Manually adjustable measurement time
Display: Features a TFT color LCD display with 0.1 dB resolution, overload, under-range
Digital Output: Provides an RS 232 serial interface via a DB 9 male connector
Storage: Supports 2 GB or 4 GB SD cards for data storage
Power Source: Batteries, providing 18 hours of operation under reference conditions
Dimensions: Compact outline size

Technical Specifications

Standard	GB/T 3785-2010, IEC 61672:2013, Class 1 or Class 2
Measurement Parameters	Lp, Leq, LAE, L5, L10, L50, L90, L95, Lmax, Lmin, LCpeak, EA
Microphone	Project measurement microphone of Type HY207 Class 1, or HY205 Class 2, nominal diameter 0.5 in (12.7 mm), free-field frequency response.
Measurement Range	A: 30 dB to 130 dB, C: 40 dB to 130 dB, Z: 45 dB to 130 dB
Time Weighting	F (Fast), S (Slow), I (Impulse)
Filters	1/3 octave filter and 1/1 octave filter
Integrating Time	Manually controlled measurement time during 5 s to 99 h 59 min 59 s
Display	TFT color LCD, resolution 0.1 dB, with overload, under-range, and low battery voltage indicators.
Digital Output	Output socket DB9 male connector, RS232 serial interface, baud rate 9600 Bd. Portable minitype thermal printer RD-V32-SN can be connected to it.
Storage	2 GB or 4 GB SD card
Power	4x R6 batteries, last for 18 h at reference conditions
Temperature Range	Class 1: 14 °F to 122 °F (-10 °C to 50 °C), Class 2: 32 °F to 104 °F (0 °C to 40 °C)
Outline Size	L: 13.39 in (340 mm), W: 2.95 in (75 mm), H: 0.98 in (25 mm)

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