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 kO 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)
|Power Requirement (Assumes 20 mA max load at SLAVE output):
||GROUND-REFERENCED, 24 Vdc @ 50 mA
|Ambient Operating Environment:
||0° C to 55° C