Detcon CXT-N7 - Manual (Page 7)

Model X40
Model X40 Instruction Manual Rev. 0.0 Page 1 of 23
1.
Introduction
1.1 Description
The Detcon CXT controller is a multi-channel gas detection controller designed to serve as a host monitor
and for a wireless network of up to 32 CXT Sensors and a variety of wireless alarm stations. The CXT
controller, sensors and alarm stations utilize radios based upon the IEEE 802.15.4 standard that operate at
2.4 GHz using DSSS encoding for robustness. These units are designed for low power operation using
Detcon rechargeable battery packs.
The CXT controller utilizes a non-intrusive magnetic interface and displays the real time status of every
sensor on a backlit LCD. Typical sensor status includes channel number, gas concentration, device tag (gas
type) and alarm/fault status. Each channel provides three alarm levels (Alarm 1, Alarm 2 and Alarm 3) and
fault for which the present status can be shown via the front panel LED indicators. Additional features
include Alarm Inhibit, Alarm Reset and Alarm Silence (Acknowledge) functions.
Figure 1 Model CXT-N4X Controller
The CXT controller is available in NEMA 4 and NEMA 7 enclosures. The units come with their own
internal battery power and are self sustaining, with the only invasive procedure being to change or charge
the batteries. NEMA 4 units have an external battery charger that connects via a Cannon Plug on the side
of the unit. NEMA 7 units use a replaceable battery pack that is accessible by removing the cover on the
condulet.
Figure 2 Model CXT-N7 Controller