AirTest CN9000 Series Manual - Página 6
Navegue en línea o descargue pdf Manual para Controlador AirTest CN9000 Series. AirTest CN9000 Series 10 páginas. Sensor controller
This custom feature module incorporates a timing circuit, output relays and external input/output wiring
terminal block.
1 – Timing Circuit (Time Select Switch)
If the front panel pushbutton marked "Audible Acknowledge" is pressed the timer circuit silences the
audible horn for a period determined by the "Time Select Switch". After the time period expires the
audible alarm will be enabled and will sound if the system detects a high gas level state.
The Time Select Switch is marked 0 through 9 and A through F (10 through 15) for a total of 16 positions.
Each position represents a 2 minute interval which is multiplied by the switch position value (0 through
15) to determine the audible silence time. If the switch is set to position A (value of 10) the silence time
would be 2 minutes X 10 or 20 minutes The maximum time would be 30 minutes at switch position "F"
(15 X 2 Min. = 30 Min.).
2 – Horn/Strobe Interlock Relays
Separate relays to drive the horn and strobe are provided to facilitate the audible silence function. When
a high gas level is detected relay 3 (marked on module in white) will activate and provide a grounding
(minus) signal to the horn and strobe. If the "Audible Acknowledge" button on the front panel is pressed
relay 2 will disconnect the grounding signal to silence the horn for a period determined by the Time
Selector Switch position.
3 – Input/Output Terminal Block
This terminal block provides connection points for the front panel switches, indicators, horn and strobe.
Refer to diagram below for details.
-12VDC Supply
Fan 1 & 3 & Damper Switch
Distributed By:
(800) 821-4863 TOLL FREE
AirTest Model CN9000 Feature Module
1
NC
NC
Suuply
Fan 2 Switch
V+
Horn Minus
+
-
-12VDC Supply
Suuply
Input/Output Wiring Identification and Simplified Schematic.
GLOBAL CONTROLS, INC.
Note: Symbols for connected devices are for quick reference only.
3008-B 16TH AVE W.
SEATTLE, WA 98119
Refer to schematic diagram for more detail.
(206) 282-4666 TEL
2
3
NC
V+
Strobe Minus
-
+
NC
Horn Silence Relay Input
V+
+12VDC Supply
Acknowledge (Silence) Button
(206) 282-4888 FAX