SLT is a class II (type 2) sound level, sound pressure level (SPL), decibel (dB) or noise meter with audible or visual alarm output capability. SLT 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.
Sound Level Meter SLT
easuring 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 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 Digital indicator Transmitter input signal 4 – 20 mA Indicator - 1999 ... 9999 (1 ... 3 decimals, according to the measurement value / chosen by the user) Programming data (decimals, limit value ..) Saved in the unit Regulation output 3 points (Com, NO, NC) Alarm output Relay output: 5 A / 240 V AC Power 90 ... 260 ACV / 50 ... 60 Hz Dimensions / Switchboard according to DIN 92 (+ 0.8) mm x 45 (+ 0.5) mm Weight Approx. 250 g / 0.56 lb Operating conditions 0 ... +50 °C / +32 ... +122 °F, max. 85 % RH Protection class IP 65 ingress protection rating