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Se nti

nel C X T

Sentinel CXT Instruction Manual

Rev. 1.7

Page 4 of 49

The CXT alarms are used to activate annunciating devices when a gas reading exceeds a user-configured
threshold. There are three alarms (Alarm1, Alarm2 and Alarm3) and a fault condition. If installed, the
strobe is associated with Alarm 1, and the horn is associated with Alarm2. The external alarm connector
provides all alarm outputs (alarm 1, 2 and 3) for connection to external alarm devices. There are two types
of external alarm connectors: ‘Wet’ and ‘Dry’. The ‘Wet output connector provides 12V outputs for
external alarms or the two-strobe/four-strobe alarm bar. The ‘Dry’ output connector provides dry contacts
for external power to control external alarms. The field configurable user interface permits the user to set
alarm values and fault conditions to cause an assigned relay to fire, triggering external alarm devices. The
assigned relay outputs will return to normal state when a gas alarm or a fault condition clears. When the
alarm level is reached either the devices mounted to the box or attached to the external alarm connector are
activated, or both. An external manual switch can be wired to the CXT, acting as an acknowledge/reset
switch (Section 1.13).

When the CXT is in alarm, the display will remain on the channel group with the alarm. The user can
manually cycle to any group page that exists using the arrow switches. After a time out period, the CXT
will resume page cycle protocols based upon the existence of alarms/faults. Four LED indicators on the
front panel show alarm/fault alarm output status and are labeled respectively as ALM 1 (yellow), ALM 2
(yellow), ALM 3 (red), and FAULT (blue).

All alarms can be configured as Energized/De-Energized, Latching/Non-Latching and Silenceable/Non-
Silenceable for the relays.

Energi

z e d M ode

The normally open contact is closed if the alarm level has not been reached or if the sensor is not in fault.
Energized mode provides for fail-safe operation since a loss of power or cable failure will cause the contact
to be open.

D e -Energi

z e d M ode

The normally open contact is open if the alarm level has not been reached or if the sensor is not in fault.

Si

le n

ce a ble

The corresponding alarm LED and relay can be deactivated by acknowledging the Alarm Silence function
on the front panel of the CXT controller or by activating the external acknowledge switch if installed
(Section 1.13 and 5.2.2).

N on-Si

le ncea ble

The corresponding alarm LED and relay will remain activated until the cause of the alarm or fault is clear.

L a tchi

n

g M ode

The relay can only be deactivated by acknowledging the Alarm Reset function on the front panel of the
CXT controller or by activating the external reset switch if installed (Section 1.13 and 5.2.2).

N on-L a tchi

ng M ode

The relay is deactivated as soon as the sensor alarm or fault condition is clear.

1.4 P owe r Supply-Inte rnal R e cha rge a ble B a tte ry a nd C ha rgi

ng

A cce ssory

SmartWireless® CXT is powered by an internal rechargeable Smart Battery capable of delivering
continuous operation in a no alarm condition for two to eight weeks depending on the quantity and type of
sensors tied to the control panel. The internal re-chargeable battery pack shall only be charged in a non-

Summary of Contents for SmartWireless CXT

Page 1: ...s Detection System With Display Operator s Installation and Instruction Manual DETCON Inc 4055 Technology Forest Blvd The Woodlands Texas 77381 Ph 713 559 9200 Fax 281 298 2868 www detco n co m May 21...

Page 2: ...al Rev 1 7 ii This page left intentionally blank Shipping Address 4055 Technology Forest Blvd The Woodlands Texas 77381 Mailing Address P O Box 8067 The Woodlands Texas 77387 8067 Phone 713 559 9200 F...

Page 3: ...rogramming Tool 21 5 2 2 Front Panel User Interface 22 5 3 Main Display Functions 23 5 3 1 Sensor Group 23 5 3 2 Transceiver Group 23 5 3 3 YYY represents the link quality of the transceiver Relay Mod...

Page 4: ...ontroller 1 Figure 2 CXT Controller System Integration Description 3 Figure 3 SmartWireless CXT Radio Module 6 Figure 4 Sensor Input PCA 7 Figure 5 Sensor Input Connector Pin out 8 Figure 6 Relay PCA...

Page 5: ...T Instruction Manual Rev 1 7 v Shipping Address 4055 Technology Forest Blvd The Woodlands Texas 77381 Mailing Address P O Box 8067 The Woodlands Texas 77387 8067 Phone 713 559 9200 Fax 281 292 2860 ww...

Page 6: ......

Page 7: ...h for Detcon equipment associated with the controller Remote mounted gas detection sensors include any analog 4 20maDC device such as toxi cga s c ombus ti bl ega s or oxygendef i c i enc ys ens or s...

Page 8: ...vated by the CXT when the alarms levels are reached Alarm options for the CXT are as follows 1 Integral audio visual mounted on the control panel Class 1 Division 2 Groups A B C D only 2 Standalone au...

Page 9: ...e Area Maximum of 4 Sensors BM25 Figure 2 CXT Controller System Integration Description A sso ci ated A ccesso ri es The accessories associated for the CXT Controller product are as follows Detcon Tri...

Page 10: ...the front panel show alarm fault alarm output status and are labeled respectively as ALM 1 yellow ALM 2 yellow ALM 3 red and FAULT blue All alarms can be configured as Energized De Energized Latching...

Page 11: ...y using the Detcon supplied Battery Charger Accessory that runs on AC power D etco nA ppro ved Battery C hargerA ccesso ry R ati n gs AC Input Power Voltage 100 240 VAC 50 60 Hz requires correct PN ve...

Page 12: ...a black ABS box mounted inside of the CXT stainless steel enclosure The standard package includes two PCAs mounted inside the black ABS box radio PCA and Smart battery charging PCA 5 dB antenna and a...

Page 13: ...2 VDC Current 100 mA max through any single sensor connector Modbus Address LSD Switch Modbus Address MSD Switch Figure 4 Sensor Input PCA Four quick connects on the side of the CXT provide sensor con...

Page 14: ...red Improper wiring of the sensor will cause the sensor to be inoperative 1 8 A larm O utputs The SmartWireless CXT can optionally include one or two internal Relay PCAs for activating alarm annunciat...

Page 15: ...s 12V Battery The 6 pin Alarm connector is intended for use with the Detcon Four Strobe or Two Strobe Alarm Bar The Two Strobe Alarm Bar has strobes that are activated when alarm 1 or alarm 2 are acti...

Page 16: ...e with Dry relay contacts Figure 9 Dry relay Contacts allow the user to control annunciators that operate off an exterior power source that relies on the controller to provide only contact closure to...

Page 17: ...ectly selected 110 VAC or 220 VAC Cord Current 2 0 Amps maximum DC Output Power Voltage 24 1 VDC Current 3 1 Amps maximum CAUTION The SmartWireless CXT must be charged with the Detcon supplied Battery...

Page 18: ...ication Warning Removal or installation of the SD Card shall only be done in a non hazardous location 1 1 3R em o te A larm R eset A ck n o wledge Swi tch An optional remote Alarm Reset Acknowledge sw...

Page 19: ...ifiedlocations Warning Explosion Hazard Do not make any disconnections while the circuit is live or unless the area is known to be free of ignitable concentrations Warning Charging of the internal Bat...

Page 20: ...ng or lifting hazard Warning When wall mounting the CXT Controller unit make sure to have 2 people working together and follow the recommended wall mounting instruction in Section 3 1 9 which requires...

Page 21: ...risk of the unit tipping over and causing personnel harm and or equipment damage 2 Mount the CXT to the center pipe using the supplied U bolts in accordance with Figure 12 The height position should...

Page 22: ...ge 16 of 49 Pipe Mounting U Bolts and hardware Tripod Center Pipe 12 3 5 4 5 10 25 12 25 11 25 21 3 Figure 12 Mount CXT on Tripod Mounting Plate Tripod Leg Mounting Hardware Mounting Support Sensor wi...

Page 23: ...h the wood The unit is then held up in place and the bolts are passed through the enclosure mounting ear holes and the wood On the back side of the wood an assistant should secure the washers and hex...

Page 24: ...enclosure open to gain access to the battery bracket Figure 15 Enclosure 10 Unplug the connector from the transceiver and move it out of the way to gain access to the screws holding the battery bracke...

Page 25: ...remove the bracket from the enclosure Retain the screws and washers for installation of the bracket with the battery pack Figure 17 Battery Bracket in position 12 Install the battery pack in the brac...

Page 26: ...le power to ensure that the unit powers up Close the front door panel and screw the front cover down The screws should be tightened down to a snug fit These screws do not need to be tightened down com...

Page 27: ...pply cords will impair the safety of this device Warning Charging of the internal Battery Pack shall never be done while equipment is located in the Division 2 hazardous area The equipment must be mov...

Page 28: ...nge selected entries in the menu selections in the upward direction D o wnA rro w Swi tch This switch moves the user down the Main Menu flow chart It is also used to change selected entries in the men...

Page 29: ...ag or COMM ERROR I N AL AR M I fa nyc ha nnel i s i na nyga s a l a r m c ondi ti on i s thea l a r m l ev el I N FAU L T I fa nyga s c ha nnel i s i nf a ul t 0 CO M M ER R I fa nyc ha nnel i s nota...

Page 30: ...ydi s c ha r ged YYY represents the link quality of the alarm station 5 4 M en u M o de 1 The PROG switch is used to enter the menu mode of the unit by swiping a programming magnet over the correspond...

Page 31: ...Bank2 Y N ENERGIZED Bank2 Y N SILENCEABLE Bank2 Y N INHIBIT MODE INHIBIT MODE START STOP ALARM TEST MODE ON OFF BRIGHTNESS BACKLIGHT TIMEOUT CONTRAST Multiple Channels Multiple Relays Fault Alm1 Alm2...

Page 32: ...alarm stations with Modbus address 80h 6 The search will continue until Modbus address 8Fh is reached or until it is terminated by swiping the ENTER marker which will save the alarm stations When all...

Page 33: ...corresponding to the cell number For an RXT 320 wireless radio module the available value is 1 or 2 corresponding to the input position of the connected sensor D eci m al Po i n tV alue The Decimal Po...

Page 34: ...ker while the flashing cursor is on RL4 BANK CNT to scroll the display to the next channel allowing for its configuration A swipe of the up arrow marker while the flashing cursor is on SLAVE ID will r...

Page 35: ...s must be re entered 5 4 4 SetR elay A larm F un cti o n s 1 Upon entering this menu the LCD will display F A U L T R E L A Y SE T U P BA N K 1 L A T C H IN G X E N E R G IZ E D X SIL E N C E A BL E X...

Page 36: ...move the arrow prompt to the desired function A swipe over T heEN T ER ma r k erw i l l s el ec tthef unc ti oni ndi c a tedbythea r r ow pr ompt T hema r k er s oftheupordow na r r ow s w i l l c ha...

Page 37: ...odbus loop back test at different baud rates and press any key to continue or swipe any marker to stop the test N O T E When performing the Modbus loop back test the loop back cable should be installe...

Page 38: ...1 1 2 3 0 0 0 9 1 7 5 1 1 0 0 The sensor readings are continuously logged to the SD card This data can also be viewed by removing the SD card Section 6 and inserting it in a laptop using the Detcon L...

Page 39: ...5 6 W i relessSen so r C o n f i gurati o n The CXT Controller can be configured to communicate with up 32 CXT Wireless Sensors All of the sensors and the CXT Controller must be on the same RF channe...

Page 40: ...be purchased for service or maintenance needs These components are only to be supplied by Detcon as part of this product configuration No substitutions are allowed Rechargeable Battery Pack Detcon PN...

Page 41: ...om the CXT Controller by turning the power switch to OFF Open the hinged door to gain access to interior Locate the four screws that attach the metal bracket that secures the battery pack Undo the fou...

Page 42: ...remotely monitor the status of the CXT If multiple CXTs are being used on a single Modbus network each controller must be set to a different device address See Section 11 2 3 for more information on...

Page 43: ...I na l a r m 2 Bi t2 Al a r m 3 0 N oAl a r m 1 I na l a r m 3 Bi t3 Fa ul t 0 N oFa ul t 1 S ens or Al a r m Fa ul t Bi t41 Ca l 0 N or ma l O per a ti on 1 I nCa l Bi t5 Comm Er r or 0 N or ma l O p...

Page 44: ...Sen ti n el C X T Sentinel CXT Instruction Manual Rev 1 7 Page 38 of 49...

Page 45: ...tenna is securely attached to all devices Verify obstructions are eliminated or minimized between SmartWireless CXT devices and controller or other CXT devices Slo w G asR espo n se Some delay in gas...

Page 46: ...via phone fax or email contact information given above RMA numbers should be obtained from the Detcon Service Department prior to equipment being returned For on line technical service have the model...

Page 47: ...equipment supplied by Detcon Inc The customer will assume all liability for the misuse of this equipment by its employees or other contracted personnel All warranties are contingent upon the proper us...

Page 48: ...y contact 120 220VAC 24VDC 2A max Sensor Input Connectors 9 11 1 VDC 100mA max per connector RFI EMI Protection Complies with EN61326 Electrical Classification NEMA 4X Class I Division 2 Groups A B C...

Page 49: ...of time over the entire network RF Sleep terminates communication sleep command between all of the wireless radio modules in the network as a power saving feature A longer sleep time will increase de...

Page 50: ...ges s a v ed The recommended value for the TTE should be five days and applies to all battery powered wireless radio modules transceivers other than alarm stations The SOC value applies to alarm stati...

Page 51: ...In other words if one of the sensors connected to the CXT goes into alarm the strobe and or horn of the CXT will be activated It will also activate any alarm stations or alarm bars connected to it In...

Page 52: ...seconds the CXT will wait after receiving a poll response from one sensor before it polls the next sensor Ten missed poll responses will result in the sensor being declared in COMM ERR The range of va...

Page 53: ...d 360 3S6PFP ASM Battery Pack 320 N45161 000 Power Switch 302 RSFCC0 05M Connector Dust Cap 302 RFK40D 05M Sensor Connector 302 RFK380 05M Power Connector 302 RFK520 05M External Alarm Connector for W...

Page 54: ...e for removable battery pack LBU 1 2 11 20 13 Updates for Approval Agency BM 1 3 01 31 14 Updates for Approval Agency BM 1 4 04 04 14 Updates to sensor wiring and battery charging BM 1 5 05 30 14 Vari...

Page 55: ...1 7 Page 49 of 49 This page left intentionally blank Shipping Address 4055 Technology Forest Blvd The Woodlands Texas 77381 Mailing Address P O Box 8067 The Woodlands Texas 77387 8067 Phone 713 559 9...

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