Noise canceling type Handset for duplex communication.
Application & Usage: The Wall mounting Handset station is part of the audio paging & talkback communication system employed in process industries for purpose of passing instructions to field operators and for emergency / safety announcements.
Accessories:
Station junction box - 1 No.
Horn speaker unit - 1 No.
Speaker junction box - 1 No.
Powder Coated MS Canopy type enclosure - 1 No.
MICROPHONE: Type-> Dynamic,NoiseCanceling Internal Impedance->300Ω @ 1 KHz Sensitivity -> 56 dB @ 1 KHz relative to 1V/Pa
RECEIVER: Type -> Dynamic Internal Impedance -> 300Ω @ 1 Khz SPL->108 dB @ 1 Khz
LINE AMPLIFIER SECTION: Input Sensitivity -> 1 mV to 5mV (adjustable) Input Impedence ->4,7 K (resistive) Load Impedence -> 250Ω, Balanced (Resistive) Output-> 2V RMS Distortion <1% @ 1 KHz Residual Noise Level -50dB Frequency Response 200 Hz - 10 KHz, ± 3 dB Gong tone Frequency 600 Hz ± 100 Hz Gong tone Duration 1.5 Secs (app.)
POWER AMPLIFIER SECTION: Input Sensitivity 500 mV RMS @1 KHz Input Impedence 250Ω (resistive) Distortion <1% @ 1 KHz Residual Noise Level -60dB Frequency Response 200 Hz - 10 KHz, ± 3 dB Output Power 15W RMS @ 1KHz Production Short Circuit & Thermsl Overload.
POWER SUPPLY: Supply voltage 90-270v AC. Power Consumption - 24VA.