Detcon 6400-N4X - Manual (Page 5)

1600/6400-N4X
1600/6400-N4X- Instruction Manual Rev.1.1 Page 1 of 38
1.0 Description
The Detcon Models 1600-N4X and 6400-N4X are “user-configurable” multi-channel alarm controller
platforms. The 1600 is configurable for up to 16 channels. The 6400 is configurable for up to 64 channels.
They can receive analog inputs consisting of either 4-20mA or contact closure, and can alternatively poll serial
sensors via RS-485 Modbus™ RTU.
The 1600-N4X and 6400-N4X controllers use a modular design approach that allows the user to customize the
selection of stand-alone input and output modules. I/O modules are available in four channel sets for 4-20mA
inputs, contact closure input, relay outputs, and 4-20mA outputs. Detcon’s I/O Modules are din-rail mounted
and stackable allowing for seamless system expansion. These addressable I/O modules can be located
remotely near the gas sensors to simplify wiring.
The status of sensor inputs are displayed on a backlit graphic display that utilizes a touch-screen user interface.
Typical sensor status includes channel number, tag name, gas type, concentration, and alarm/fault status. Each
input channel can be assigned up to three alarm levels and fault. A standard RS-485 or optional RS 232 serial
output is provided for communication with PLC’s, PC’s, monitoring devices, and remote screens.
The controller can be powered by 110/220VAC, 11.5-30VDC or both. The enclosure is rated for NEMA 4
locations. Remote mounted gas sensors (purchased separately) can include serial or 4-20mA input devices
such as; toxic gas, combustible gas, or oxygen deficiency sensors or contact closure inputs such as liquid level,
temperature, pressure, heat, smoke, pull station, etc. Additional features include: one-touch Alarm Inhibit,
Alarm Reset, and Alarm Silence (Acknowledge) functions. An Alarm Reset Switch is also mounted on the
outside of the enclosure on the left side. The Model 1600/6400-N4X controllers have onboard data logging to
record all alarm, fault, maintenance, and trend history.
The Model 1600/6400-N4X controllers provide for a unique combination of user programming flexibility and
customizable expansion capabilities, in a low-cost, simple-to-operate package.
Model 6400-N4X
Muiti-Channel Gas Detection Control System
Alarm 1
Alarm 2
Alarm 3
Fault
Sensor 3
Sensor . . .
Sensor 62
Sensor 63
Sensor 2
Sensor 1
Sensor 64
RS-485 / RS-232
to Master Control
System, DCS, PC, etc.
Model 6400-N4X
Power Input
The model 1600 will only
handle a maximum of 16
channels.
Figure 1 1600/6400 Block Diagram