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 -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold.
The delay adjustment range for the ST-ACR1 is from 0.5 seconds to 5 seconds.
||10 Kohm balanced bridging
||May be connected balanced or unbalanced
||Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
||Audio threshold LED (for setting sensitivity)
|Max. Switching Power:
||60 W, (220 VDC,125 VAC, 2A)
|Activation Response Time:
||-30 dBu to 0 dBu (adjustable)
|Relay Release Delay:
||0.5 sec. to 5.0 sec. nominal (adjustable)
(Assumes 20 mA max load at SLAVE output):
|GROUND-REFERENCED, 24 VDC @ 50 mA
|Ambient Operating Environment:
||0° C to 55° C