RDL®

ST-ACR1M

Microphone Level Audio Controlled Relay - 0.5 to 5 s delay

SKU: ST-ACR1M
  • Switching Controlled by Audio Signal
  • Sensing of Microphone-Level Signal
  • Silence Sensing
  • DPDT Switching Contacts
  • Open-Collector SLAVE Output
  • Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)

    Description

    Each of the ST-ACR products is an Audio Controlled Relay in the STICK-ON® series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR-1M is designed to switch on low-level sources, such as microphones or mic-level sources.

    Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -65 dBu and -20 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold. The adjustment range is from 0.5 seconds to 5 seconds.

    Specifications

    Audio Input:10 kΩ balanced bridging
    Input Connections:May be connected balanced or unbalanced
    Control Output:Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
    Indicators:Audio threshold LED (for setting sensitivity)
    Retrigger delay:250 ms
    Contacts:Double-pole-double-throw
    Max. Switching Power:60 W, (220 Vdc, 125 Vac, 2A)
    Activation response time:25 ms
    Input Sensitivity:-60 dBu to -20 dBu (adjustable)
    Relay Release Delay:0.5 sec. to 5.0 sec. nominal (adjustable)
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED, 24 Vdc @ 50 mA*
    * Assumes 20 mA max load at SLAVE output
    Dimensions:Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
    Package Type:Cardboard Box
    WEEE weight:0.145 lbs.
    Shipping Weight:0.2 lbs.
    Tariff code:8543.70.9860
    Package Dimensions:2 x 2 x 4 in.

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    Dimensions

    ST-ACR1M

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsFormat
    Engineering Functional BlockAmericanDXF
    Panel Diagram - FrontAmericanDXF
    Panel Diagram - FrontMetricDXF
    High Res ImagesFormat
    st-acr1m.zipTIF
    Declaration of Conformity
    Download

    Diagrams

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