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VESDA

VESDA Sensepoint XCL – Large Bore Installation Manual

35563_02

15

5. Replace the terminal blocks in their correct positions.

2.9

Ground Connections

Effective grounding is crucial to ensure stable Modbus communications and to limit the effects of radio
frequency interference. Ground points are provided inside the back box. In order to prevent false readings or
alarms as a result of ground loops, ensure that the shield of all cables are grounded at a single point, preferably
at the controller. Consideration should also be given to how conduit, glands and the internal earth plate are
also grounded.

Note:

Any earth regime must avoid earth loops.

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Summary of Contents for VESDA Sensepoint XCL

Page 1: ...VESDA Sensepoint XCL Large Bore Installation Manual Sensepoint XCL Large Bore July 2020 Doc No 35563_02 Part No 30937 ...

Page 2: ......

Page 3: ...use equipment damage Xtralis is not responsible and cannot be held accountable for any liability that may arise due to improper use of the equipment and or failure to take proper precautions Only persons trained through an Xtralis accredited training course can install test and maintain the system Liability You agree to install configure and use the products strictly in accordance with the User Ma...

Page 4: ...sical damage or permanent corruption of configuration details Warning This icon is used to indicate that there is a danger of electric shock This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of inhaling dangerous substances This may lead to death or permanent injury Contact Us UK and Europe 44 1442 242 330 The Americas 1 800 229 4434 Middle Eas...

Page 5: ...the operator involved in the installation maintenance and servicing of the VESDA Sensepoint XCL Large Bore gas detector and must have a good understanding of the working principles of the Xtralis aspirating smoke detectors refer to respective ASD Product Guides for details Warning Positioning of sampling holes for gas detection is dictated by the characteristics of the gas being detected environme...

Page 6: ...VESDA Sensepoint XCL Large Bore Installation Manual VESDA iv www xtralis com This page is intentionally left blank ...

Page 7: ...0 Securing the Detector Module and Flow Cap 16 2 11 Connecting to Pipe Network 17 2 12 Installation Practices 18 2 13 Setting Alarm Thresholds 18 3 Commissioning 19 3 1 Commissioning the Detector 19 3 2 Status Indicator 21 3 3 Target Gas Selection flammable catalytic versions only 22 4 Maintenance 23 4 1 Using the Control Buttons 23 4 2 Maintenance Status Indicator 23 4 3 Calibration 24 4 4 Bump T...

Page 8: ... app A mobile app Sensepoint App is available to commission maintain and service the VESDA Sensepoint XCL gas detector VESDA Sensepoint XCL can be used either indoors or outdoors If used outdoors a sheltered location should be chosen which is protected from direct sunlight and rain 1 2 Appearance 5 9 8 7 10 6 Legend 1 Back box 2 Gas detector module 3 Sensor cover 4 Calibration Port 5 Red plug 6 Fl...

Page 9: ...d the power supply Assignment of the terminals and additional terminal blocks will vary dependent on the version Analog mA Output Versions Legend 1 24 V DC or 24 V AC 2 0V or 24V AC 3 4 to 20 mA 4 Common For details on wiring for the analog output version see Wiring of mA Output Versions and Current Source Sink Selection Modbus Output Versions Legend 1 24 V DC or 24 V AC 2 0V or 24V AC 3 A 4 B Use...

Page 10: ...Connection to these relays are made through the two 3 way terminal blocks Legend 1 Normally closed NC 2 Common 3 Normally open NO 1 7 Speciﬁcations Dimensions and Weight Specification Value Length 113 mm 4 4 in Width 113 mm 4 4 in Height 59 mm 2 3 in Weight 500 g 1 1 lb ...

Page 11: ... 2 Flow control None Refer to Appendix A 6 for details on the Modbus registers Adjustable Modbus settings l Slave ID 1 to 255 l Baud rate 9600 19200 bps l Parity None Even Odd l Relay Default Setting Specification Value Relay 1 Any faults and initial state is energized Relay 2 Gas alarm 1 and initial state is de energized Maximum Power Consumption The power consumption varies depending on output v...

Page 12: ...nd Specification Value Inner knockout M20 or NPT Outer knockout M25 or NPT Sampling Pipe VESDA Sensepoint XCL Large Bore is designed to be inserted to Xtralis pipe networks with the below dimensions Specification Value Outer diameter 25 mm 0 98 in to 27mm 1 06 in Gas Test Tube For Bump test and Calibration use flexible urethane gas test tubing with the below dimensions to connect gas cylinder to C...

Page 13: ...sories with VESDA Sensepoint XCL Malfunction may result if non standard parts are used VESDA Sensepoint XCL is suitable for ordinary locations only and must not be installed in hazardous locations Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned For Europe see EN60079 14 EN60079 29 2 and EN61241 14 For installations in North Ame...

Page 14: ...he cable between the controller and the detector is Vcontroller Vdetector min 13 V DC Power consumption of the detector is maximum 2 3 W Wdetector max The maximum current required to drive the VESDA Sensepoint XCL at the minimum voltage is 2 3 W 11 V DC 209 1 mA Idetector max So the maximum ﬁeld cable loop resistance Rloop max is 13 V DC 0 2091 62 Ω Therefore the maximum cable length for any given...

Page 15: ...d ensure that terminal 4 Common is used to connect the power and controller grounds together Inhibit Level Selection Use the inhibit switch to set the level of current which is required when inhibit is active 1 With this switch in the upper position a current of 4 mA is output in inhibit mode 2 With this switch in the lower position a current of 2 mA is output in inhibit mode Current Source Sink S...

Page 16: ... Ω When the mA output is not being used a 33 Ω 0 125 W load resistor should be connected between terminal 3 4 20 mA and terminal 2 0 V for source mode or terminal 1 24 V DC for sink mode Failure to do so will cause the unit to enter a fault condition When operating the detector from an AC power supply the current loop mA wiring should be connected between terminals 3 4 20 mA and 4 COM Detector Sou...

Page 17: ...4 20mA 4 20mA COM COM Legend 1 External power supply 2 VESDA Sensepoint XCL detector 3 System controller 4 Current ﬂow 2 6 Wiring of Modbus Output Versions Modbus Connection For Modbus versions up to 32 VESDA Sensepoint XCL detectors can be connected in a daisy chain arrangement as shown in the diagram below Note Where possible spur or T connections should be avoided Always keep the spur connectio...

Page 18: ...VESDA Sensepoint XCL Large Bore Installation Manual VESDA 12 www xtralis com Terminal Resistor Connect a 120 Ω 0 25 W terminal resistor between the A and B terminals at the end of the line ...

Page 19: ...tched off 1 There are four screw positions in the rear of the back box for mounting purposes Punch the required screw positions or drill using a 4 mm drill 2 Secure the back box in its mounting position with suitable ﬁxings appropriate to the mounting surface Do not over tighten 3 There are four cable entry knock outs on three sides of and on the rear face of the back box Drill or punch the entrie...

Page 20: ...ector module and locate the terminal blocks on the back Remove the terminal blocks by pulling them toward the center of the module 4 Connect the cable to the appropriate terminal block referring to the relevant wiring diagram Strip and insert the end of each wire into the corresponding terminal hole Using a ﬂat blade terminal screwdriver tighten the terminal screw until the wire is secured Use a f...

Page 21: ...and to limit the effects of radio frequency interference Ground points are provided inside the back box In order to prevent false readings or alarms as a result of ground loops ensure that the shield of all cables are grounded at a single point preferably at the controller Consideration should also be given to how conduit glands and the internal earth plate are also grounded Note Any earth regime ...

Page 22: ...the back box ensuring that the status indicator is in the top left hand corner when viewed from the front Tighten the four retaining screws using a No 2 Phillips screwdriver to secure CAUTION Do not over tighten the screws If required the current sink source selection switch can be set at this point 2 Where used tighten the sealing nut of the cable gland to secure the cable ...

Page 23: ...in the pipe run to direct flow to the Flow Cap using 4x60 elbows supplied as shown below Do not glue the pipes to the Flow Cap 3 Where VESDA Sensepoint XCL is mounted close to the smoke detector ensure a 0 5m 1 64ft minimum linear pipe length between detectors 4 Where VESDA Sensepoint XCL is mounted adjacent to pipes introduce a vertical horizontal offset in the pipe run using the 4x60 elbows supp...

Page 24: ...SD flow normalized 100 Pipe Flow VESDA Sensepoint XCL ii Upstream sample holes blocked 2 sample holes i e Pipe flow 40L min Pipe Flow VESDA Sensepoint XCL ASD Low Flow Fault threshold 80 Difference between pipe flow 50 40 10L min 20 flow loss Notes l VESDA Sensepoint XCL impedance is approximated with x3 ECO detectors in ASPIRE designs l Where VESDA Sensepoint XCL is sampling sticky gases i e NO2 ...

Page 25: ...urce mode of the detector Refer to Current Source Sink Selection on details of how to do this 3 Configure the required inhibit level of the detector Refer to section Inhibit Level Selection on details of how to do 4 Check that all electrical connections are terminated correctly according to the connector terminal assignments 5 Switch on the power supply to the VESDA Sensepoint XCL a For DC operati...

Page 26: ...r module to the back box 7 Apply power The VESDA Sensepoint XCL will enter a warm up mode during which time the status indicator will be steady yellow and the output mA version will be held in an inhibited state 8 After the warm up has been completed the VESDA Sensepoint XCL will enter it s normal operating state ...

Page 27: ...s green and yellow when the gas detector is in a warning state Fault The indicator ﬂashes yellow when the gas detector is in a fault state Inhibited The indicator is on steady yellow when the user has placed the detector into the inhibit state for maintenance or repair Alarm The indicator ﬂashes red when the gas concentration is beyond the alarm level threshold Out of range alarm The indicator rap...

Page 28: ...system where gases are grouped depending on the response of the sensor to them The higher the star rating the more responsive the sensor is to the gas The table below shows the Star Ratings for a range of gases Gas Equivalent Star Rating Acetone 2 Ammonia 6 Benzene 2 Butanone 2 Butane 3 Butyl acetate 1 Cyclohexane 1 Cyclohexanone 1 Diethyl ether 2 Ethane 4 Ethanol 3 Ethyl acetate 2 Ethylene 4 Hept...

Page 29: ... change has been made it is saved automatically before proceeding to the next stage l To escape and discard all changes This escape function can be used at any time during the procedures detailed in the following sections Press and hold the DOWN button for 5 seconds 4 2 Maintenance Status Indicator There is another indicator on the rear of the detector module for easier maintenance When performing...

Page 30: ...t App for Calibration a Zero calibration Expose VESDA Sensepoint XCL to ambient air if there is doubt of the quality of the ambient air use a cylinder with clean air b Span calibration Expose VESDA Sensepoint XCL to the calibration gas Where greatest accuracy is required the gas concentration should be around the alarm set point or 50 of the detector range If at the end of the purge cycle detector...

Page 31: ...ould be usually around the alarm set point or 50 of the range of the detector c Apply the span gas to the detector and wait for a few minutes until the reading is stable d Using the UP and DOWN buttons adjust the output voltage until it reaches the target value Use the formula below to calculate what the correct voltage should be Vout Gas concentration detector range For example if you are applyin...

Page 32: ...op the gas flow from the cylinder 4 Apply bump test gas and check gas reading and transmission signals Gas readings must be within the accuracy of the listed gas sensor see A 1 Detector Parameters 5 Following bump test replace the red Calibration Port plug 6 Power ON smoke detector or switch to normal mode CAUTION For CO versions operating in UL 2075 alarm mode apply 100 ppm of carbon monoxide for...

Page 33: ... of the product 1 Disable smoke detector to prevent the transmission of potential flow fault alarm 2 Disconnect both sampling pipes and remove the Flow Cap from the detector 3 Remove the sensor cover loosen the screw on the top of the sensor cover 4 Replace the sensor cover and secure with the screw taking care not to over tighten it 5 Secure the sampling pipe and the Flow Cap to the detector 6 En...

Page 34: ...the sensor cover 4 In Sensepoint App choose Change Sensor from Maintenance menu 5 Pull out the gas sensor 6 Insert a new sensor ensuring that the sensor pins are correctly aligned CAUTION Do not force the sensor into the socket otherwise it may be damaged 7 Reinsert sensor cover and flow cap and connect to the sampling pipe 8 Enable the smoke detector 9 Perform calibration section 4 3 Calibration ...

Page 35: ...e output continues to be held in its inhibit state To switch to normal monitoring mode press and hold the DOWN button for 5 seconds 4 7 Resetting Alarms and Faults When there is latched gas alarm or faults reset them by pressing the UP or DOWN button shortly This will reset latched alarms and faults and initiate a self diagnostics to make sure there is no warning or fault in the detector ...

Page 36: ...shooting The following flow chart describes the troubleshooting process of VESDA Sensepoint XCL detector during Calibration and Bump testing Bump Test Replace Gas Sensor Calibrate Replace Sensor Cover Calibrate Calibrate Replace Detector Fail Fail Fail Detector OK Pass Pass Pass Pass Fail ...

Page 37: ...erial Number 4 Complete the installation of the detectors 5 On the app s home screen tap DETECTORS to scan for available detectors 6 Select a detector from the detector list to pair with 7 Look for the detector whose Status Indicator is ﬂashing blue 8 Tap Conﬁrm Detector to pair with that detector Otherwise tap Return to list to select one of the others 9 To connect to detectors that are not added...

Page 38: ... 5ppm 120 0 1ppm 0 2ppm or 20 Ammonia ppm XCL LB NH3 50 to 200ppm 100ppm 50ppm 200 1ppm 4ppm 20 Oxygen v v XCL LB O2 25 0 v v Fixed 25 0 v v 20 9 v v 30 0 1 v v 0 5 v v Gas Operating Temperature Default Alarm Points Types LAL1 LDL2 Min Max A1 Default A1 Type A1 Options A2 Default A2 Type A2 Options Carbon Monoxide ppm 20 C 50 C 30ppm Rising Rising Disabled 100ppm Rising Rising Disabled 15ppm 10ppm...

Page 39: ...ncrease when operating in lower temperature conditions l The accuracy for all sensors except oxygen and flammable CAT is 30 The accuracy of oxygen is 0 9 v v The accuracy of the flammable CAT version is 5 LEL All figures are valid over the temperature range 20 C to 50 C l The flammable CAT and oxygen O2 versions may experience zero level drift in high humidity environments Recalibrate the unit in ...

Page 40: ...sor connection If same fault occurs again replace sensor Fault 3 Cell is producing a negative reading Calibrate the unit Fault 4 EEPROM is corrupted Reconfigure the unit by using Sensepoint App If same fault occurs again contact manufacturer Fault 5 MCU operating voltage failure Power cycle the unit If same fault occurs again contact manufacturer Fault 6 RAM read write fault Power cycle the unit I...

Page 41: ... LB CO2PP RA VESDA XCL LB CO2 5000PPM 4 20mA REL XCL LB CO2PP RM VESDA XCL LB CO2 5000PPM MODBUS REL XCL LB CO2VV RA VESDA XCL LB CO2 5 V V 4 20mA REL XCL LB CO2VV RM VESDA XCL LB CO2 5 V V MODBUS REL 2 Accessories Part Number Description XCL LB CAP VESDA XCL LB SP FLOW CAP XCL LB ELB VESDA XCL LB SP 60DEG ELB PK 4 XCL M20 CG VESDA XCL SP CBL GLNDS PK 10 3 Consumables Part Number Description XCL S...

Page 42: ...onents In no event shall Xtralis be liable for any damages or injury of any nature or kind no matter how caused that arise from incorrect handling or use of this equipment In no event shall Xtralis be liable for any equipment malfunction or damages whatsoever including without limitation incidental direct indirect special and consequential damages damages for loss of business proﬁts business inter...

Page 43: ...ction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CAUTION Changes or modiﬁcations not expressly approved by the manufacturer responsible for compliance could void the user s authority to operate the equipm...

Page 44: ... 16 1 0x0210 2 and 16 last digit is omitted Upper Byte Major version Lower Byte Minor version 30002 EEP Version of Instrument R u8 1 30003 to 3009 Reserved R u16 14 30010 Modbus Slave ID R u8 1 30011 Device Monitoring Status R u16 1 To check the device is monitoring the gas or not Do not use this for alarm fault check l 1 Normal l 2 Warm up after power on l 3 Inhibit l 12 Calibration 30012 to 3001...

Page 45: ...urrent value of configuration 4 0 same as 40133 to 40134 Holding Registers 40101 System ID Code R u16 1 MSB always 0x26 to facilitate automatic identification LSB repeat of Modbus address l UpperByte Type Code 0x26 l LowerByte My address 40102 System ID Code R u16 1 Identical to 40101 l Upper Byte Type Code 0x26 l Lower Byte My Address 40103 to 40104 Gas Reading R f32 2 The reported gas concentrat...

Page 46: ...ments where the transport layer communication error information is unavailable This increments approximately every 5 seconds It is the responsibility of the system integrator to notify plant personnel if a Modbus master fails to communicate with the Incom This register can facilitate this notification 40109 to 40110 Calibration Due R f32 2 This indicates the time remaining days before the ECC sens...

Page 47: ...ading by status R f32 2 Gas reading value calculated by device status i g negative value in fault status 1 If device is in Inhibit state return value is base concentrate of sensor data In case of ECC Noramlly 0 2 If device is in fault state return value is 3 return f32_gas_full_scale 16 fault current value of configuration 4 0 4 If device is in warning state return value is return f32_gas_full_sca...

Page 48: ...ising A2 falling 0x21 0b00100001 l High nibble Alarm 2 Type l Low nibble Alarm 1 Type l 0 Disable 1 Rising 2 Falling 40161 Reserved 40162 Relay Configuration R u8 1 For example Relay1 to Alarm 1 01 Relay2 to Alarm 2 10 Initial relay1 status to De energized 0 Initial relay2 status to Energized 1 Then the bits are 0b00101001 which is 0x29 l Bit 0 to 1 Relay Type 1 0 Fault 1 Alarm1 2 Alarm2 l Bit 2 t...

Page 49: ...1 l 0x00 Flammable l 0x01 Toxic l 0x02 O2 l 0x03 VOC 40174 to 40175 Voltage Output R f 32 2 Device s voltage output value corresponding gas conc i g if gas conc Is reached to full scale voltage output value is 1 0 40176 to 40183 Device SN R string 16 8 40184 to 40188 BLE FW Version R string 10 5 BLE FW Version 40189 to 40200 Reserved 40201 Reset Alarms Faults W u16 1 40202 to 40207 Reserved 40208 ...

Page 50: ...ncluding but not limited to trademarks copyrights patent are hereby acknowledged You agree not to copy communicate to the public adapt distribute transfer sell modify or publish any contents of this document without the express prior written consent of Xtralis Installation information In order to ensure full functionality refer to the installation instructions as supplied Xtralis ...

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