מד דציבלים לאולמי אירועים דגם TRM

תיאור

Sound level meter TRM is a class II (type 2) sound level, sound pressure level (SPL), decibel (dB) or noise meter with audible or visual alarm output capability. It is used for long-term, continuous monitoring of occupational noise exposure limits in industrial environments such as foundries, factories and manufacturing production floors. The measuring device consists of a wall-mountable acoustic sensor on a 1.5 m / 4.92' long cable and a transmitter.

– Measuring range: 30 … 130 dB in 3 ranges
– Resolution: 0.1 dB
– Accuracy: ± 1.5 dB
– IP 54 ingress protection rating on transmitter offers limited protection against dust ingress (no harmful deposit) and protection against splashed water from any direction

Measuring range	30 … 130 dB in 3 ranges: I. 30 … 80 dB(A) II. 50 … 100 dB(A) III. 80 … 130 dB(A)
Resolution	0.1 dB
Accuracy	±1.5 dB
Frequency weighting	A
Power supply	Via transmitter
Cable length (sensor to transmitter)	1.5 m / 4.92'
Operating conditions	0 … +50 °C / +32 … +122 °F, max. 85 % RH
Microphone	1/2" precision electret
Standard	IEC 61 672 (Class II)
Transmitter
Housing	ABS plastic
Power supply	90 … 260 AC V / 50 or 60 Hz
Calibration	Adjustable by set screw
Output	4 … 20 mA
Protection class	IP 54 ingress protection rating
Operating conditions	0 … +50 °C / +32 … +122 °F, max. 85 % RH

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