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BEINAT BX444-Mc, Руководство пользователя

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BEINAT BX444-Mc Скачать руководство пользователя страница 9

Page  9

Selection  of  the  type  of  gas  monitored  by  each  probe
The  BX444-Mc  if  fitted  with  four  micro-switches  in  order  to  select  the  type  of  gas  that  the  connected  probes
should  monitor.
The  LEL  reading  is  obtained  by  shifting  the  switch  to    ON.         Explosive  gas.
The  ppm  reading  is  obtained  by  shifting  the  switch  to  OFF.      Toxic  gas

Components and Commands continue

Switch  1  –  Selection  of  the  intrinsic  safety
In  the    ON  position,  the  intrinsic  safety  function  is  enabled.
In  the  OFF  position,  the  intrinsic  safety  function  is  disabled

Switch  2  -  Working  Mode    of  Main  alarm  relay
In  the  OFF    (impulse)  position,  the  relay  remains  closed  for  seconds,  and  then  disenergizes  afterwards.
In  the  ON  (continuous)  position,  the  relay  remains  closed  until  the  RESET  button  is  pressed.

Switch  1  (3)  -  Alarm  memory  logging
By setting  the micro-switch to ON, the device will log the  alarm, maintain  the relay closed, and  the main  alarm
LED  will  blink,  until  the  RESET  button  is  pressed.
By  setting  the  micro-switch  to  OFF,  the  device  will  not  maintain  the  alarm  memory  and  the  relay  switches
off  when  the  connected  probe  no  longer  detects  gas;    In  compliance  with  the  rules  this  function
becomes  active  only  when  you  select  the  detection  of  Toxic  Gases  (reading  in  “ppm”)

Switch  2  (4)  -  Selecting  of  the  control  unit  in  oxygen  detection  mode
By  setting  the  micro-switch  to  ON,  the  device  is ready to  detect  the oxygen.  The  display  changes  color  and
becomes  BLU

ATTENTION  !!  Selecting  the  detection  of  oxygen  the  control  unit  will  be  enabled  to  detect  OXYGEN,
and  not  other  types  of  Gas

By  setting  the  micro-switch  to  OFF,  The  control  unit  is  ready  to  explosive  or  toxic  gas  detection.
The  display  changes  color  and  becomes  green.

Zone1  Zone2    Zone3  Zone4

Micro-switch  (2)  to  select  the  type  of  gas  monitored
Position ON  lreading  in  LEL  -  Explosive  gas
Position OFF  reading  in  ppm  -  Toxic  gas

Light  signaling  the  type  of  gas  selected
ppm  is  the  reading  of  the  concentration  for  the  CO  gas
LEL    is  reading  of  the  concetrazione  for  Explosive  Gas  (Methane  or  LPG)

ppm              LEL

Relay’s  working  mode  and  the  memory  of  the  Main  alarm

Zone1  Zone2    Zone3    Zone4

Micro-switch  1  Positive  Safety
Micro-switch  2  working  mode  of  the  Main  Alarm  relay
Micro-switch  3  Maintaining  Memory
Micro-switch  4  Enabling  Oxygen  mode

1  2     3   4

Содержание BX444-Mc

Страница 1: ...mall underground car parks The BX444 M control unit has three danger levels 1st LEVEL 1st Alarm This was set to 8 of L E L 120ppm 2nd LEVEL 2nd Alarm This was set at 13 of L E L 200ppm 3rd LEVEL Main Alarm This was set at 20 of L E L 300ppm For oxygen the centrol unit BX444 Mc presents three levels of danger which are 1st Pre Alarm Both in deficiency and excess of Oxygen 2nd Pre alarm Both in defi...

Страница 2: ...f Conventional Sensors that can be connected 4 Micro switches to include or exclude the probes 1 per each probe Connectable probes Semi conductor Catalytic Electrochemical cell Pellistore Infrared Rays Type of faults detected by Fault Circuit Interruption short circuit or wear Input Signal 4 20 mA on 220 ohm Device Accuracy 1 FS Response Time 2 Control Unit microprocessor Functioning Temperature 1...

Страница 3: ...FREON 0 300 ppm 4 20 mA 5 Yes Yes SGF108 Elettrochimica IP64 Zone 2 H2S 0 300 ppm 4 20 mA 5 Yes Yes SGF110 Electrochemical IP64 Zone 2 C O 0 300 ppm 4 20 mA 5 Yes Yes SGF112 Catalytic IP64 Zone 2 Hydrogen 0 100 LEL 4 20 mA 5 Yes Yes CO100r Electrochemical IP55 Tertiary C O 0 300 ppm 4 20 mA 5 Yes Yes CO100Ar Electrochemical IP66 Zone 2 C O 0 300 ppm 4 20 mA 5 Yes Yes SG800duct Catalytic IP66 Zone ...

Страница 4: ... LED blinks when one of the connected probes is faulty if there is an interruption in the cable connection or if an error was made during wiring When this LED is blinking the device is no longer capable of detecting To reactivate the device the damaged probe must be repaired or disabled using the internal micro switch see chapter 6 paragraph A and then the RESET button must be pressed 11 EXPLOSIVE...

Страница 5: ...000 a ppm LEL 1 2 3 4 d b 00LEL 300ppm The blu display shows the percentage of oxygen normal condition 20 6 20LEL FAU The green display shows an absence of leakage of gas normal conditione The display shows with red color a concentration of explosive gases in LEL greater than a threshold alarm The display shows with red color a concentration of toxic gases ppm greater than a threshold alarm The ye...

Страница 6: ... connections according to Regulations in force keeping in mind that the signal cables should be laid separate from the power cables An automatic cut off switch appropriately identified as devicesectioning of the detector should be incorporated in the electrical system adequatelylocated and easily accessible Electrical Connections Diagram of the terminal block relay Power supply 110 230 VAC PH N 4 ...

Страница 7: ...nnection examples Power supply 230 12V Diode 1N 5406 1 2 3 4 5 6 7 8 3 2 1 Probe 1 3 2 1 Probe 2 3 2 1 Probe 3 3 2 1 Probe 4 R1 R2 R3 R4 Solenoid valve GAS and Sirens 12 VDC 12 V If a 12Vdc solenoid valve which does not work well is connected to the BX444 Mc Direct connection of 12VDC solenoid valves or sirens to the BX444 Mc is not permitted An external power unit must always be used The BX444 Mc...

Страница 8: ...On the next pass the LED probe will be maintained again and the alarm will be issued In case of fault The LED of the relevant probe starts blinking and remains lit The display will show the FAU Fault fixed indication and the buzzer will issue a continuous sound until 1 The repair has been carried out 2 The relevant probe has been disabled using the micro switch 1 2 4 3 Sensors Probe Identification...

Страница 9: ...memory and the relay switches off when the connected probe no longer detects gas In compliance with the rules this function becomes active only when you select the detection of Toxic Gases reading in ppm Switch 2 4 Selecting of the control unit in oxygen detection mode By setting the micro switch to ON the device is ready to detect the oxygen The display changes color and becomes BLU ATTENTION Sel...

Страница 10: ...ition of the detection sensors You can connect many types of remote sensors to this unit Therefore they should be positioned at different heights depending on the type of gas to be detected These heights are 30 cm from the lowest point of the floor in order to detect Heavy gases L P G etc 30 cm from the highest point of the ceiling in order to detect light gases Methane etc 160 cm from the lowest ...

Страница 11: ...rectly connected If the Fault LED lights up Check that the connecting cables from the BX444 Mc to the probes are intact that the probes are properly powered and that the signal cable is correctly connected If the Over Load Probe LED lights up Check that the power polarity has not been inverted that no short circuit is present that the probes were not damaged during installation that no excessive c...

Страница 12: ...r example sales points in case you buy a new and similar product local collection points waste collection center local recycling center etc By ensuring this product is disposed of correctly you will help prevent potential negative consequence for the environment and human health which could otherwise be caused by inappropriate waste handing of this product The recycling of materials will help to c...

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