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

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