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Mic-Level Controlled Relay - 0.5 to 5 s Delay - Radio Design Labs ST-ACR1M

SKU: RDLST-ACR1M
Manufacturer: RDL
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MSRP: $189.70
Price: $142.27
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Mic-Level Controlled Relay - 0.5 to 5 s Delay
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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
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.2 lbs.
WEEE weight:
0.145 lbs.
Tariff code:
8543.70.9960
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