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VESDA VLI Product Guide

VESDA by Xtralis

www.xtralis.com

3.4

Configuration

The VLI detector can be configured using Xtralis VSC software installed on a direct or network
connected PC.

3.4.1

Default Settings

Table 3-3: Default Settings

Parameter

Default Values

Range

Access

Level

Minimum

Maximum

Event Log - Events

Smoke Level

Enabled

n/a

Adm

Alarms

Enabled

n/a

Adm

Faults

Enabled

n/a

Adm

User Action

Enabled

n/a

Adm

Thresholds

Alert

0.2% obs/m
(0.064% obs/ft)

0.05% obs/m
(0.016% obs/ft)

1.990% obs/m
(0.637% obs/ft)

Adm

Action
(Pre-Alarm)

0.3% obs/m
(0.096% obs/ft)

0.1% obs/m
(0.032% obs/ft)

1.995% obs/m
(0.638% obs/ft)

Adm

Fire1
(Alarm)

0.4% obs/m
(0.128% obs/ft)

0.15% obs/m
(0.048% obs/ft)

2.0% obs/m
(0.64% obs/ft)

Adm

Fire2

2.0% obs/m
(0.64% obs/ft)

0.155% obs/m
(0.05% obs/ft)

20.0% obs/m
(6.4% obs/ft**)

Adm

Alarm Delays

10 Seconds

0 Seconds

60 Seconds

Adm

Delay Times

Simultaneous

Cumulative

Adm

Instant Fire

Disabled

Enabled

Disabled

Adm

Change-over Times:

Day

Night

07:00:00

19:00:00

Two Seconds

11:59:58

Adm

Weekend

Saturday & Sunday

Adjust to suit
environment

Adm

Holidays

First Day

Last Day

1-Jan-90

Adjust to suit
environment

Adm

Smoke Change:

Change by:

Min. Interval

0.02% obs/m
(0.006%obs/ft.)

2 seconds

0.02% obs/m
(0.006%obs/ft.)

2 seconds

0.2% obs/m
(0.064%obs/ft.)

10 seconds

Adm

AutoLearn

14 days
0 hours
0 minutes

0 days
0 hours
15 minutes

15 days
23 hours
59 minutes

Adm

** In default "UL mode", maximum sensitivity is limited to 4%/ft

Содержание VESDA VLI

Страница 1: ...VESDA VLI Product Guide December 2010 Document 18500_A1 Part Number 29674 ...

Страница 2: ......

Страница 3: ...quipment 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 Manual ...

Страница 4: ...ntion Description Bold Used to denote emphasis Used for names of menus menu options toolbar buttons Italics Used to denote references to other parts of this document or other documents Used for the result of an action The following icons are used in this document Convention Description Caution This icon is used to indicate that there is a danger to equipment The danger could be loss of data physic...

Страница 5: ...t the equipment to a power outlet which is on a different power circuit to the receiver or consult the dealer or an experienced radio television technician for help FDA This Xtralis product incorporates a laser device and is classified as a Class 1 laser product that complies with FDA regulations 21 CFR 1040 10 The laser is housed in a sealed detector chamber and contains no serviceable parts The ...

Страница 6: ...t signal Through validation testing Underwriters Laboratories Inc has verified that VESDA ECO gas detectors when installed within the sample pipe network present no significant effects on the smoke detection performance of VESDA The use of the ASPIRE2 calculation software is required to verify system design performance with all devices included in the design Product Listings l UL l ULC Regional ap...

Страница 7: ...ations 33 4 3 Inlet Pipes 33 4 4 Managing the Exhaust Air 34 5 Operation 35 5 1 Connecting to the Detector 35 5 2 Access Levels 37 5 3 Commands 38 6 Commissioning 41 6 1 AutoLearn Smoke 41 6 2 AutoLearn Flow 42 6 3 Commissioning Smoke Test 42 7 Maintenance 43 7 1 Set the Detector to Standby 43 7 2 Remove the Front Cover 44 7 3 Replacing the Intelligent Filter 45 7 4 Replacing the Secondary Foam Fi...

Страница 8: ...A VLI Product Guide VESDA by Xtralis 2 www xtralis com A 3 Relay Configuration 55 A 4 VESDAnet Interface Card 55 A 5 ASPIRE2 Data 55 A 6 Smoke Test 56 A 7 Air Sampling Test Results 56 B Glossary 57 Index 59 ...

Страница 9: ...ntegrated into a building management system BMS 1 1 Features The VLI detector contains the following features l Area coverage up to 2000m2 21 500ft2 l Intelligent Filter patent pending l Up to four pipes with a total pipe length of 360m 1200ft l Wide sensitivity range l AutoLearn Smoke and Flow l Clean Air Zero l Five high intensity status LEDs l Five relays fire fault and three configurable confi...

Страница 10: ...lter is fully monitored and provides consistent sensitivity over the entire life of the detector The filter significantly reduces the exposure of the internals of the detector to contaminants in the incoming air while providing consistent sensitivity to smoke Refer to section 2 2 for further information ...

Страница 11: ...of field replaceable components Legend A Front cover E Chamber assembly with tertiary clean air filter B Intelligent Filter F Aspirator C Secondary foam filter G Base D Electrostatic Discharge ESD cover Figure 2 1 Detector components Refer to Chapter 7 for further information regarding maintenance scheduling and availability of spare parts ...

Страница 12: ...ctor to measure the split of the airflow ratio as the filter load increases over time The detector sets the sensitivity proportionally depending on flow ratio thus ensuring consistent and reliable operation over time A portion of recombined air sample is then passed through a sampling probe inertial separator and the secondary foam filter H which ensures only smoke sized particles are passed into ...

Страница 13: ...Air Zero Process 1 The user executes the Clean Air Zero command in Xtralis VSC 2 The main aspirator is turned off 3 The Clean Air Zero aspirator located inside the chamber assembly is turned on This aspirator pumps clean air into the Chamber and purges any contaminated air 4 After a waiting period to allow the chamber to purge a smoke reading is taken with clean air in the chamber This reading is ...

Страница 14: ... lit when a fault is detected when airflow normalization is being performed or when the Clean Air Zero function is in progress Refer to Chapter 8 for information on troubleshooting Power The POWER LED illuminates when the detector is powered up Reset Disable Button l To reset the detector press this button once l To disable the unit press and hold the button for approximately 2 seconds until the D...

Страница 15: ...etween the VLI detector and a PC or laptop installed with Xtralis VSC It is not necessary to install USB drivers in order for the operating system to recognize the detector Ethernet The Ethernet port is used for configuration and or monitoring purposes It enables TCP IP network connection between the detector and a PC or laptop installed with Xtralis VSC or Xtralis VSM4 or other BACnet protocol co...

Страница 16: ... 0 to 85 C l Must not exposed to sunlight or other radiation sources Sampling Pipe Network l Maximum length per pipe 120m 350ft l Total pipe length 360 m 1200 ft l Pipe Modeling Design Tool ASPIRE2 Pipe Size l Internal Diameter 15 21 mm 0 874 inch l External Diameter 25 mm 1 05 inch Relays l 5 relays Fire Fault 3x Configurable l Contacts rated 2A 30 VDC l Programmable to latch or non latch states ...

Страница 17: ...FIFO basis AutoLearn l Minimum 15 minutes l Maximum 15 days 23 hrs 59 minutes l Recommended minimum period 14 days Thresholds are automatically changed from the previously set values to the updated values after the AutoLearn process has completed Referencing Adjustment for external ambient conditions Four Alarm Levels Alert Action Pre Alarm Fire1 Alarm and Fire2 Two Fault Warning Levels Minor Faul...

Страница 18: ... 08 B 426 5 16 8 C 316 5 12 46 D 70 2 2 76 E 45 1 77 F 149 5 87 G 34 1 34 H 60 3 2 37 I 26 7 1 05 J 70 2 2 76 K 105 4 13 L 206 3 8 11 Figure 2 4 Front Dimensions mm inch A 426 5 16 8 B 316 5 12 46 C 75 2 95 D 88 25 3 47 E 250 9 84 F 96 3 3 8 G 115 2 4 54 H 105 4 13 Figure 2 5 Rear Dimensions ...

Страница 19: ...ation and monitoring of devices from a central computer l connection to a reference detector l connection to additional accessories such as remote displays The VESDAnet enabled VLI detector VLI 885 can join a VESDAnet network when the optional VESDAnet expansion card is installed Figure 2 6 VLI VESDAnet Card The VLI VESDAnet Card also includes a 15 pin socket for directly connecting a hand held LC...

Страница 20: ...his model is connected to a DB9 socket on the optional VESDAnet expansion card refer to section 2 7 1 Legend A LCD Display B Keys Figure 2 7 Hand held LCD Programmer Refer to the LCD Programmer Product Guide for further details 2 8 2 Remote Display Module The Remote Display Module provides real time indication of the status of a VLI detector and a single zone Figure 2 8 Remote Display Module The u...

Страница 21: ... Fire 1 Action and Alert smoke threshold indicators provide a visual representation of the programmable alarm thresholds showing how close the smoke level is to triggering the next level of alarm l Fault conditions are indicated by a series of LEDs and an audible tone l The numerical readout can show either the current smoke level in obscuration m obscuration ft or the Fire 1 threshold in obscurat...

Страница 22: ...VESDA VLI Product Guide VESDA by Xtralis 16 www xtralis com This page is intentionally left blank ...

Страница 23: ...tted with VESDAnet Card l Multilingual Installation Sheet l this Product Guide Check all components for damage and refer any concerns to your authorized representative Additional Requirements Depending on the nature of the installation it may be necessary to acquire the following items l Screws and inserts for the mounting bracket appropriate for the installation location l USB Interface Lead if c...

Страница 24: ...o the rigid nature of the plastic pipe installation must provide for sufficient movement in all pipework air inlet air exhaust and cable pipes to allow pipe ends to be easily fitted and removed Figure 3 3 Mounting location Mount the Detector 1 Horizontally align the mounting bracket A and place the flat side flush against the surface Use appropriate fasteners B to secure the bracket Legend A Mount...

Страница 25: ...VESDA by Xtralis VESDA VLI Product Guide www xtralis com 19 Legend A Detector B Mounting bracket C Locking Mechanism Figure 3 5 Mounting the detector ...

Страница 26: ...3 2 1 Power Source There are two sets of power terminals on the main board Connect to a 24 VDC power supply to the PWR IN socket and if required loop out to another detector via the PWR OUT socket The detector will not operate if the power supply polarity is reversed Caution Operating the detector when DC supply voltage is outside the specified voltage range may cause damage to internal components...

Страница 27: ...g the devices in the network The network cables are terminated at the VESDAnet A and B Terminals on the VESDAnet card Cabling from one VESDA device is brought into the detector at one terminal and looped out to another device on VESDAnet from the other terminal Notes l Connection between devices should be from A to B Avoid using A to A or B to B l The polarity of the data wires must be maintained ...

Страница 28: ...ding by default a Remote Reset function Notes l When the detector is isolated or de isolated via the GPI the status cannot be changed through the normal isolate de isolate functions of the Display Module or the LCD Programmer l When the night time thresholds are invoked via the GPI it overrides the clock settings for day start and night start The GPI requires a voltage supply between 5V and 30 VDC...

Страница 29: ...shows where an End Of Line EOL resistor is correctly installed Figure 3 10 Typical wiring to a fire panel with EOL 3 2 7 Typical Wiring to Address Loop Module This wiring example is for wiring VESDA detectors to a typical Input Output Loop module 3 inputs 1 output These are example drawings Refer to the appropriate product manual for the exact wiring details of the third party equipment Figure 3 1...

Страница 30: ...lculation Sheet is included below Table 3 2 Calculating the size of backup battery Equipment Normal loads 24 V DC Full alarm load 24 V DC Load mA Qty Total Load mA Qty Total Detector 340 390 Remote Display 90 110 Remote Programmer 50 backlight off 110 backlight on Hand held Programmer 50 backlight off 110 backlight on System Relay Module 60 105 Other 24V Loads Total mA Total mA X X Standby Hours A...

Страница 31: ...ls to power up check all power wires are secured to their terminals and the polarities of the power wires are correctly terminated On power up l The Power LED illuminates l The aspirator starts up and air is felt flowing out of the exhaust port l If there is a fault the Fault LED illuminates It is normal for the detector to display troubles immediately after the first power up Reset the detector b...

Страница 32: ...s ft 0 15 obs m 0 048 obs ft 2 0 obs m 0 64 obs ft Adm l Fire2 2 0 obs m 0 64 obs ft 0 155 obs m 0 05 obs ft 20 0 obs m 6 4 obs ft Adm Alarm Delays 10 Seconds 0 Seconds 60 Seconds Adm Delay Times Simultaneous Simultaneous Cumulative Adm Instant Fire Disabled Enabled Disabled Adm Change over Times l Day l Night l 07 00 00 l 19 00 00 Two Seconds 11 59 58 Adm Weekend Saturday Sunday Adjust to suit en...

Страница 33: ...tes l Selectable l 1 l 0 minutes l Selectable l 100 l 15 minutes Adm Communications l Network Delay l Preferred Port l Health Check l Open ended l 15 seconds l A l 45 seconds l None l 10 seconds l n a l 40 seconds l n a l 45 seconds l n a l 60 seconds l n a DST 3 4 2 Relay Assignments and Conditions to Change States Relays 1 and 2 are fixed to Fire1 Alarm and Fault respectively Relays 3 4 and 5 ar...

Страница 34: ...F when 5 VDC is at this terminal Note No Alarms can be generated in this state Isolate The detector isolates when the voltage rises above 5 VDC and de isolates when the voltage falls below 5V Use Night time Threshold The detector switches over from day time to night time thresholds when 5 VDC are at these terminals Reset Isolate While power is applied to the GPI the detector is isolated In additio...

Страница 35: ...9 When using the standby or remote isolate options it is recommended that all displays on VESDAnet are configured to have the Isolate button locked out When programming the display through the LCD Programmer choose Isolate Disabled from the Button Lockout menu ...

Страница 36: ...r inlet ports Ensure that the pipes are NOT glued Have the power wires been connected to the correct terminals on the detector If required has the end of line resistor been connected Have the alarm and fault signaling wires been terminated to the correct terminals of the detector Has the plug at the exhaust port been removed Ensure that the exhaust pipe if fitted is NOT glued Has the front cover b...

Страница 37: ...ector to a LCD Programmer or using the Xtralis VSC software The preliminary systems check includes l For networked detectors conducting a communications check l Configure the pipes in use setting l Normalizing the air flow l Conducting a basic pass fail smoke test For details on preliminary systems check refer to the LCD Programmer or the relevant software documentation Refer to the LCD Programmer...

Страница 38: ...VESDA VLI Product Guide VESDA by Xtralis 32 www xtralis com This page is intentionally left blank ...

Страница 39: ...clear of rough edges and debris l pipes are free of debris l all joints must be bonded except the endcaps and pipes entering the detector Notes l In protected areas sampling holes should face into the direction of airflow or point downwards in static airflow situations l Keep the sampling holes evenly spaced l For code specific information see Codes and Standards Information for Air Sampling Smoke...

Страница 40: ...or via the exhaust port at the bottom of the unit enclosure The air exhaust port is tapered to accept standard pipes of OD 25 mm ID 21 mm or IPS inch and to provide an airtight seal Remove the exhaust port plug and if required connect an outlet pipe to the exhaust manifold DO NOT glue this pipe to the exhaust manifold as this will void the warranty Where the detector is located outside the protect...

Страница 41: ...s VSC supports connecting to a VLI detector via a range of connection mechanisms and communication protocols Connection methods are defined and saved for future use within the Connection Manager To define a connection to a networked or standalone VLI detector follow this procedure 1 Select Connection Manager from the menu system The Connection Manager dialog is displayed Figure 5 1 Connection Mana...

Страница 42: ... Next 6 Enter a unique BACnet Device ID then select Next 7 Enter a unique name for the device then select Finish Figure 5 3 Select USB 5 1 2 Creating an Ethernet BACnet IP Connection 1 Follow the steps in section 5 1 2 Select BACnet from the Add Connection dialog box Figure 5 2 3 Select Ethernet BACnet IP then select Next Figure 5 4 4 Enter a unique IP address then select Next If the detector is b...

Страница 43: ...tional Authorization USR Low This is the USER or the OPERATOR level The user can view the event log change the date and the time They can also perform selected zone control functions ADM High At the ADMINISTRATOR level access is available to most functions These include setting alarm thresholds normalizing air flows reset filter and defining the relay configuration DST Absolute The DISTRIBUTOR lev...

Страница 44: ...he process the detector will not register smoke levels from the protected environment A fault will be generated if the process fails Start AutoLearn Smoke In Xtralis VSC you will be prompted to set the period of time that the environment is monitored to allow the system to decide what smoke thresholds are most appropriate It is recommended to set the smoke thresholds a little higher than expected ...

Страница 45: ... scale smoke level and initiates all alarm activity Alarm relays will energize unless isolated Start Air Flow Fault Test Test the air flow sensing system by shutting down the aspirator for 30 seconds Relay Test Test the available relays View Current Air Flow View the current airflow Monitor Filter Display filter status Clean Air Zero Measure chamber background Note This command will shut down the ...

Страница 46: ...VESDA VLI Product Guide VESDA by Xtralis 40 www xtralis com This page is intentionally left blank ...

Страница 47: ...determines the average smoke and peak smoke obscuration levels and sets suitable alarm thresholds for the operating environment This process will minimize nuisance alarms due to normal environment smoke variations During the learning cycle alarm conditions can be reported If an alarm condition occurs AutoLearn will not complete its cycle In this situation the user must restart the AutoLearn proces...

Страница 48: ...ion the user must restart the AutoLearn process If AutoLearn is halted the flow thresholds will be left at the previous settings Conditions experienced during learning are assumed to be representative of normal operating conditions The AutoLearn Flow learning times range from 15 minutes to 15 days with the default being set to 14 days 6 3 Commissioning Smoke Test It is recommended that a smoke tes...

Страница 49: ...installation Caution While the detector or zone is isolated no fire warnings will be annunciated by the detector Prior to any maintenance or testing l Inform appropriate supervising authority about the risk associated with isolating a detector or zone l Check to see if the detector is also being used by a third party l Ensure that any ancillary devices dependent on the detector are isolated before...

Страница 50: ...ve screws It may be removed by turning the screws counter clockwise Caution Electrostatic discharge ESD precautions need to be taken prior to removing the front cover from the detector in order to prevent damage to sensitive electrical components within the VLI detector Remove the Front Cover The front cover is held on by four captive screws and a tether It may be removed by turning the screws cou...

Страница 51: ... minimum threshold when compared to the flow of un filtered air Remove the Intelligent Filter 1 Set the detector to Standby mode Refer to section 7 1 for further information 2 Remove the front cover Refer to section 7 2 for further information 3 Unclip the Intelligent Filter A by pulling the locking lever outward B 4 Remove the Intelligent Filter Figure 7 2 Intelligent Filter Removal Reinstall the...

Страница 52: ...r During the replacement process the detector needs to be informed that a new filter has been installed Remove the Secondary Foam Filter 1 Set the detector to Standby mode Refer to section 7 1 for further information 2 Remove the front cover Refer to section 7 2 for further information 3 Remove two secondary foam filter screws A 4 Remove the secondary foam filter B Figure 7 4 Secondary Foam Filter...

Страница 53: ...e not damaged or dislodged from the underside of the aspirator Remove the Aspirator 1 Set the detector to Standby mode Refer to section 7 1 for further information 2 Remove the front cover Refer to section 7 2 for further information 3 Power down the detector 4 Unplug the Aspirator electrical connector 5 Remove the three Aspirator screws A and the two screws on the exhaust port B 6 Remove the Aspi...

Страница 54: ...he three ESD Cover screws Figure 7 6A 5 Remove the ESD Cover Figure 7 6B Figure 7 6 Chamber Assembly Replacement ESD Cover 4 Disconnect the cable 5 Remove the two chamber assembly screws Figure 7 7 A 6 Disconnect the air inlet Figure 7 6 and the exhaust tube Figure 7 6D while sliding the chamber out 7 Remove the chamber assembly Figure 7 7 B Figure 7 7 Chamber Assembly Replacement Chamber Assembly...

Страница 55: ...s Gray colored internal components such as the Intelligent Filter and Aspirator are field replaceable Part No Description VSP 030 VLI Intelligent Filter VSP 031 VLI Secondary Foam Filter VSP 032 VLI Aspirator VSP 033 VLI Chamber Assembly Table 7 2 Suggested spare parts stock ...

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Страница 57: ...ng Note It is normal for a new system to indicate airflow faults These are rectified as part of the setup and commissioning process 8 1 Troubleshooting with Xtralis VSC The Xtralis VSC software displays faults in the active event list as they occur The list displays the date and time of the fault the serial number of the device on which the fault has occurred the zone number fault number and a des...

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Страница 59: ...r Diagnostics 3 Display Diagnostics 4 Test Relay 1 2 3 4 Client Representative Name 1 Test witnessed by Date Hand Over Documents 1 Copy of this form 2 ASPIRE2 Installation Data Pack 3 ASPIRE2 Bill of Materials 4 Commissioning form or printout from Xtralis VSC for each detector 5 Commissioning form or printout from Xtralis VSC for each display module 6 Smoke test results 7 Forms required for compli...

Страница 60: ... Card or Multi relay card or None Alarm Thresholds Significant Smoke Day Action Pre Alarm Instant Fire Enable disable Fire1 Alarm Secondary Foam Filter Service Period Day Night Changeover Enable Disable Reference Detector Address Zone Day starts Dilution Night starts Delay seconds Night Action Pre Alarm Flow Threshold High Major Fire1 Alarm High Minor Delay Action Pre Alarm Low Minor Fire1 Alarm L...

Страница 61: ...uration commissioning form Relay 1 2 3 4 5 Start up Latching Fault Fire Configurable Configurable Configurable D Normally De energized E Normally Energized A 4 VESDAnet Interface Card Table A 5 VESDAnet Interface Card commissioning form VESDAnet Card Installed Yes No Card Serial Number Preferred Port Port A Port B Loop Open Ended on this card Yes No A 5 ASPIRE2 Data Table A 6 ASPIRE2 Data commissi...

Страница 62: ...t Results Test Method Type of Smoke Test Date A 7 Air Sampling Test Results Table A 8 Air Sampling Test results commissioning form Pipe 1 Pipe 2 Pipe 3 Pipe 4 Transport Time from End Cap Hole Test 1 Initial Response Action Pre Alarm Fire1 Alarm Peak Smoke Test 2 Initial Response Action Pre Alarm Fire1 Alarm Peak Smoke ...

Страница 63: ...heir status to G General Purpose Input GPI Unmonitored An input to a detector which can be used to place the detector in a certain condition Applying a voltage between 5V and 30VDC triggers the selected condition General Purpose Input GPI Monitored An input to a detector which is monitored for open or short circuits It can be used to monitor the power supply H High Airflow Environment Where there ...

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Страница 65: ... 49 checklist air sampling results 56 commissioning 53 display relay configuration 55 installation 30 modelling 55 relay configuration 55 smoke test 56 VESDAnet interface card 55 clean air 6 7 Clean Air Zero 7 event 7 commands accept factory defaults 38 cancel AutoLearn smoke 38 Clean Air Zero 39 clear event log 38 disable 38 enable 38 monitor filter 39 normalize air flow 38 rebuild zone list 38 r...

Страница 66: ...urgent 51 zone 51 filter 26 intelligent filter 5 6 30 38 45 49 secondary foam 5 6 30 38 46 49 tertiary clean air 5 6 fire1 8 11 14 26 27 fire2 8 11 26 front panel 8 G GPI 3 22 24 51 55 57 external reset 28 inverted reset 28 isolate 28 mains OK 28 monitored 22 24 57 power supply voltage 22 28 reset isolate 28 standby mode 28 unmonitored 22 28 57 use night time threshold 28 H HLI 57 I intelligent fi...

Страница 67: ...ry 24 consumption 10 GPI supply voltage 22 supply 20 voltage range 20 wiring 20 power source 20 power supply 20 monitoring 22 power up 25 pre alarm 8 programmer 14 22 24 28 29 31 41 51 R referencing 11 27 57 relays 10 22 23 27 51 55 57 fault 22 27 55 fire 22 27 55 remote display 51 reset 8 14 28 55 RS485 9 S sensitivity 57 settings 26 default 26 silence 14 specifications 10 alarm range 10 dimensio...

Страница 68: ...ide VESDA by Xtralis 62 www xtralis com U USB 9 36 interface lead 17 V VESDAnet 6 9 11 13 14 17 21 22 29 30 37 38 41 51 54 57 polarity 21 W weight 10 wiring 20 address loop module 23 FACP 23 power 20 VESDAnet 21 Z zone 57 ...

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