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VDOT-ASD-400 Aspiration Detector

Velocity Detection

15

VDOT-ASD-400 Aspirating Smoke Detector User’s Manual V1

Electrical Installation

Above picture is the internal view of the VDOT-ASD-400. All the electrical connections should be
made to the removable connectors on the termination board or the relay board if it equipped.

Cables

Power cable should be 2.0mm

2

-2C of sufficient current carrying capacity.

Control cable should be 0.75mm

2

strands cable.

RS485 network should be 24AWG twisted pair shielded cable.

High Sensitivity Smoke Detector

Zone Relay Board (Optional)

Termination Board

Filter

Flow Sensor #1

Aspirator #1

Flow Sensor #2

Flow Sensor #3

Flow Sensor #4

Aspirator #2

Aspirator #3

Aspirator #4

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Содержание VDOT-ASD-400

Страница 1: ...VDOT ASD 400 Aspirating Smoke Detector User s Manual...

Страница 2: ...es 3 Specification 5 Sampling Pipework Design 8 Considerations 8 Design Guidelines 11 Installation 13 Mechanical Installation 13 Electrical Installation 15 Front Panel 20 Control 21 Display 21 Paramet...

Страница 3: ...off to see which pipe has the highest smoke level This ASD patented pipe scan process identifies the pipe that contains the most smoke extremely useful when using the four pipe aspirating smoke detec...

Страница 4: ...elays on Zone Relay Board Optional l 3 in 1 Control Display Programmer Front Panel l RS485 Network l Support Modbus RTU Open Protocol Note Maximum pipe length and maximum number of sampling holes cann...

Страница 5: ...les totally 4x100m 4x10 holes 3x100m 3x13 holes 2x100m 2x20 holes EN54 20 Class B Maximum 60 holes totally 4x100m 4x15 holes 3x80m 3x20 holes 2x60m 2x25 holes EN54 20 Class C Maximum 100 holes totally...

Страница 6: ...Low Fault Adjustable Flow Detection Sensitivity Adjustable Flow Fault Threshold Relay Output 7 Relays on Termination Board Configurable Rating 2A 30 VDC General Purpose Inputs 8xGPIs Configurable GPI...

Страница 7: ...ystem Auxiliary Isolated indicator Beeper Programmer Access Password Controlled Bargraph and 6 digits 7 Numerical LEDs display the function Func buttons to change settings Event Logs Number of Events...

Страница 8: ...e than one point of supply extract then the system sensitivity will only be determined in discussions with the manufacturer or his representative Always locate the sampling points in a position to whi...

Страница 9: ...applications and should be specified as part of the risk assessment For example Class A ASD systems are generally designed with transport times of less than 60 seconds Maximum transport time can be d...

Страница 10: ...VDOT ASD 400 Aspiration Detector Velocity Detection 10 VDOT ASD 400 Aspirating Smoke Detector User s Manual V1 Two branch system Four branch system o Balance...

Страница 11: ...les alone the pipe maximum pipe length or 60m pipe length with up to 25 holes along the pipe maximum holes under the requirement of 120s maximum transport time There are four pipe inlets for VDOT ASD...

Страница 12: ...red relative sampling hole sensitivity is as follows Class A 40 holes Class B 60 holes Class C 100 holes l In Consideration of both maximum pipework and system sensitivity the recommendation of pipe l...

Страница 13: ...tallation Dimensions l The mounting holes in each corner are used to mount the device on the wall It is recommended the device is 1 5m above the floor The device location should be considered for easy...

Страница 14: ...ade from a non hazardous material and should be clearly identified Typical sampling pipes used in air sampling systems are ABS uPVC pipes with 25mm OD The pipes should be marked with air sampling or a...

Страница 15: ...ovable connectors on the termination board or the relay board if it equipped Cables Power cable should be 2 0mm2 2C of sufficient current carrying capacity Control cable should be 0 75mm2 strands cabl...

Страница 16: ...ne must be connected to a 24 20 19 6 28 8 DC Power Supply The device may be powered by any EN54 4 compliant monitored 24DC power supply of sufficient capacity o Relay Connections There are 7 configura...

Страница 17: ...wered off Care should be taken for the relay s NO or NC connection when changing relay functions o GPI General Purpose Input There are eight General Purpose Input terminals on VDOT ASD 400 termination...

Страница 18: ...y of other detection device like gas sensors temperature sensors or other aspirating smoke detectors The GPI 1 on the VDOT ASD 400 termination board is a monitored contact with a 10K terminal resistor...

Страница 19: ...open protocol can communicate with ASD devices VDOT NET64 Velocity Aspirating Network Configuration D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S D D S AVA...

Страница 20: ...Detector User s Manual V1 Front Panel The VDOT ASD 400 front panel is a Control Display Programmer 3 in 1 LED display Bargraph LED 20 segments Power Indicator Isolate Indicator 6 digits Numerical Dis...

Страница 21: ...lt status When there is a new alarm or fault in occurrence the beeper will activate again while ISOLATE is to completely isolate the system alarm from the corresponding output there will be NO alarm o...

Страница 22: ...rence Press v w buttons on panel could switch the display item in sequence as follows Smoke S D Flow F D Address Addr D Auxiliary Aux The 4 indication LEDs above the numerical display indicates which...

Страница 23: ...marks Smoke S 0 000 25 00 m Airflow F 0 200 Address Addr 0 255 In setting other parameters all indicators will go off except smoke learning or air flow labeled flashing condition Auxiliary Aux NONE A1...

Страница 24: ...Failed E2 Smoke Detector Service Required E3 Smoke Level High E4 Smoke Level Low Flow Fault E5 Aspirator Failed E6 Flow Sensor Failed E7 Pipe Flow High Fault E8 Pipe Flow Low Fault E9 Normalization F...

Страница 25: ...ET Press once Reset v Press once Numerical LED display item switch leftward MODE Press and hold for 2 sec Numerical LED display default item The default item will be switched rightward to the next ite...

Страница 26: ...next range u Press and hold F key for 2 sec to exit the setting mode u If no action taken for 1 min under setting mode it will count down by 10 sec in exiting the setting mode Table key function under...

Страница 27: ...ave expired The detector will generate Fire 2 Alarm Alert Delay t1 0 60 30 The alarm delay is the number of seconds that an alarm level has to be continuously sensed before the alarm is initiated Each...

Страница 28: ...level is decreased below alarm level This is the factory default setting When this function is set to N the alarm will be reset automatically when the smoke level is decreased below alarm threshold F...

Страница 29: ...7 5 Relay 5 05 2 2 2 Relay 6 06 1 7 3 Relay 7 07 1 7 4 Relay 8 08 1 7 5 Relay 9 09 2 2 2 Relay 10 10 1 7 3 Relay 11 11 1 7 4 Relay 12 12 1 7 5 Relay 13 13 2 2 2 Relay 14 14 1 7 3 Relay 15 15 1 7 4 Rel...

Страница 30: ...he detector 16 Log Smoke Log Enable SN N Y Y Setting this function to Y enables the smoke flow log There are two selectable log modes CHANGE and RATE On VDOT ASD 400 0 is CHAGNGE and 1 is RATE When th...

Страница 31: ...Read Only Serial No SN Read Only 19 Scan Scan Enable SE OFF ON OFF Enable VDOT ASD 400 Pipe Scan Function MFG Scan Level SL 1 4 3 The alarm level reached to start pipe scan process to identify the pi...

Страница 32: ...f background particulate matter testing methodology would be similar to that of standard point detectors Commissioning Check List The following brief checklist allows quick setup of the detector This...

Страница 33: ...network can be synchronized by Management System Software at the same time 2 Set the time delays temporarily to 0 second when testing the transport time is appropriate to eliminate the alarm delay tim...

Страница 34: ...replacement filter is fitted enter the setup menu to set a new filter When new filter is set a filter flow calibration process will be initiated to learn the flow rate passing through the new filter...

Страница 35: ...eading to history record to see if there s significant change Airflow reading during maintenance should be confirmed as 20 of the values measured at commissioning c Inspect the sampling pipe to see if...

Страница 36: ...alarm panel if it s connected to the fire alarm system c Shut down the power supply mains power Check if the power supply back up output and its display function correctly Check if there s relevant fa...

Страница 37: ...ce a three ways valve can be installed before the pipe inlet so that a maintenance inlet is provided on the three ways valve In normal operation the valve is switched to connect the sampling pipe and...

Страница 38: ...evels have been reached and appropriate time delay expired At this time the VDOT ASD 400 cannot identify which pipe the smoke is from When the alarm reaches the scan level setting can be alert action...

Страница 39: ...ipe scan process to identify the pipe with most smoke 0 Manual Only 1 Alert 2 Action 3 Fire 1 4 Fire 2 Adm Scan Time St 5 60 20 The time in seconds for the aspirator operate on each pipe Adm Note 1 Pl...

Страница 40: ...can switch the 6 digits Numerical Display to Aux looking for the event code l When the scan starts from an alarm condition after pipe scan beside the scan alarm level the alarm levels lower than scan...

Страница 41: ...ID on the Zone Relay Board optional in VDOT ASD 400 The first relay in each zone is Normally Closed for its default setting is Fault The 2nd 3rd 4th relays in each zone are Normally Open with default...

Страница 42: ...d the others are Normally Open DST Relay 2 02 2 2 3 Relay 3 03 1 7 4 Relay 4 04 1 7 5 Relay 5 05 1 7 2 Relay 6 06 1 7 3 Relay 7 07 1 7 4 Relay 8 08 1 7 5 Relay 9 09 2 2 2 Relay 10 10 1 7 3 Relay 11 11...

Страница 43: ...ector Velocity Detection 43 VDOT ASD 400 Aspirating Smoke Detector User s Manual V1 Velocity Detection Address Detection House 72 78 Morfa Road Swansea SA1 2EN UK Email sales Velocitydetection com htt...

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