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This is a microcontroller based device capable of monitoring the 
gas concentration in up to 4 different zones: for each of these a 
4 .. 20 mA transmitter can be wired for measurement and 
detection of either L.P.G., Methane or Carbon Monoxide (CO). 

After power-up the display shows the following information:

 

 

 ]RQH

]RQH 

 

             

 

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 9(56,21QQQQQQ 

 

 ]RQH

]RQH

 

 
where ’ nnnnnn ’ is the firmware version installed in the device.  
This information will remain visible for about 2 seconds. After this 
time the main information will be displayed (example): 
 

 ]RQH

]RQH 

 

             

 

 *B&SB 

 *30$ 

 

 ]RQH

]RQH

 

 
Each zone provides the following information: 
The first letter from left explains the transmitter type wired to the 
central unit. 
The transmitters which can be wired to the central unit can be 
different for each zone; the detectable gases are the following: 

 

L.P.G.: 

    display 

shows 

letter 

*

’ 

-  Methane (CH

4

): 

 

 

display shows letter ’

0

’ 

-  Carbon Monoxide:   

display shows letter ’

&

’. 

 

Values displayed on the right, in % L.E.L. (in case L.P.G. or 
Methane transmitters are connected) or ppm (in case of Carbon 
Monoxide) are the actual gas concentration values measured by 
the transmitters. The last letter shown on the display for each zone 
indicates the actual state of the relevant transmitter as explained 
in the following: 

 

B

:

   Active state (measuring, normal operation). 

*

:

   Fault on the ’

*

’as transmitter (Iout=2 mA). 

)

:

   ’

)

’ault over the current loop (either short or open circuit 

between any of the sensor wires: Iout=0 mA ). 

3

  ’

3

’realarm state. 

$

:

   ’

$

’larm state. When ’

295

’ is shown in place of the 

concentration value, this means that the upper limit of the 
measuring range has been exceeded. The ’

295

’ state 

corresponds to an input current value above 20mA. 

 

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The central unit can manage separately the pre-alarm and alarm  
conditions through two distinct, Normally Open, output relays. 
In case the prealarm threshold is reached, the central unit enables 
the relevant relay, which, in turn, closes its output contacts. 
In case the alarm threshold state is reached the unit will also 
enable the alarm relay thus closing the relevant output contact. At 
the same time the central unit has stored the pre-alarm state first 

and the alarm state later: the date and hour when the last has 
happened will be retained in the central unit memory. 
In case the gas concentration returns below the pre-alarm 
threshold, the relevant relay will return to its normal operation 
state or not, according to how the prealarm relay operating mode 
was set in the configuration. 

 

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For compliance with the current performance standards the 

Alarm relay has always a latched operation and this mode cannot 
be modified by the user. Whenever either an Alarm situation (’A’) 
or an Overrange (’OVR’) situation is reached, this relay is kept 
energised together with the internal buzzer and the red led until 
the user intentionally presses for 3 seconds the ’ 

UHVHW

’ key. 

 

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The central unit features one additional relay with changeover 
contacts (SPDT) which can be activated according to events and 
operating modes set by the installer through the relevant menu. 

 

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The central unit can retain the date and hour of the last alarm 
event happened in each zone. 
This information can be read by the user at any time by pressing 
for 3 seconds the ’ 

UHVHW

 ’ key  when in main display screen, then 

pressing ’<’ or ’>’ keys to cycle through the zones.

 

 

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The central unit is normally powered with 230V~ mains voltage. 
At terminals 6 and 7 the user can wire a battery backup system 
whose purpose is to grant full functionality to the central unit even 
in case of power failure (see section [m] for details). 
Normally Closed (NC) output of the auxiliary relay is available at 
terminals 15 and 16, while the Normally Open (NO) one is 
available at terminals 16 and 17. 
This output can be used either for driving ’general purpose’ loads 
as a siren or an flashing light or, with proper configuration of the 
relevant parameters, to drive a gas shut-off electrovalve. 
Moreover this central unit features two single pole relay contacts 
for each zone, one for prealarm and one for alarm.  
The number of transmitters which can be wired to the central unit 
is 4, each compliant with the 4..20 mA current loop system. 
In order to make electrical wirings please refer to the suggested 
wiring diagrams. Please also note that all the relay outputs of the 
central unit do not feed power to the loads. 
In other words all outputs are ’voltage free’, giving the user more 
freedom to use loads with several operating voltages. 

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 230V~ power supply 

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 Controls up to 4 zones 

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 Manages CO, L.P.G. and Methane (CH

4

) transmitters 

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 Wide parameters configuration freedom 

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 Last alarm conditions data retention 

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 LCD backlight 2 x 16 characters display 

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 9 modules DIN rail mount

 

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 Compliant with EN60079-29-1 performance standard

 

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Содержание RGY 000 MBP4

Страница 1: ... central unit features one additional relay with changeover contacts SPDT which can be activated according to events and operating modes set by the installer through the relevant menu LVSOD RI WKH ODVW DODUP VWDWH The central unit can retain the date and hour of the last alarm event happened in each zone This information can be read by the user at any time by pressing for 3 seconds the UHVHW key w...

Страница 2: ...nge the settings of the available parameters for a proper operation of the gas detection system B SB Main screen example B 0 B Ø press enter Ø Pressing or cycles QWHU SZG through single digits UVW HQW Pressing or sets the desired value for each digit Ø enter password Ø press enter Ø RQH PDQDJHPHQW Pressing or cycles UVW HQW through all submenus Press enter to access the submenu Ø RQH PDQDJHPHQW UV...

Страница 3: ...e date and time when the prealarm was triggered Even in case the non latched mode is selected shoul a pre alarm event be triggered the relevant date and time is acquired it can be displayed by pressing for a few seconds the reset key RQH PDQDJHPHQW UVW HQW Ø press enter then 5 times Ø RQH SU PRGH 2 Pressing or cycles UVW HQW between O and L x 2 Pre alarm relay is non latched x Pre alarm relay is l...

Страница 4: ...mm dd hh mm Pressing or sets the desired value Ø press enter to store data KDQJH SDVVZRUG Sets new password The password is made of 4 numbers no letters each in the range 0 9 KDQJH SDVVZRUG UVW HQW Ø press enter Ø Pressing or cycles 6HW QHZ SZ through single digits UVW HQW Pressing or sets the desired value for each digit Ø press enter stores data D 127 x URP WKH PDLQ VFUHHQ SUHVVLQJ DW WKH VDPH W...

Страница 5: ...re operating range 800 1100 hPa 07 Power supply range 230V 15 10 50 60 Hz 08 Power absorption 9 5VA 09 Electrical wirings See section a 10 Batteries See section m 11 Sample flow rate Not applicable 12 Warm up time Not applicable 13 Stabilization time Not applicable Contacts rating zone relays 8 x 2A 230V cos auxiliary relay 1 x 5A 250V cos Prealarm threshold range Methane and L P G 1 100 LEL CO 1 ...

Страница 6: ...arranty policy The full text of warranty is available on request from the seller LJ LVSOD FRQFHQWUDWLRQ YV QSXW XUUHQW This chart is valid for the use of a 4 20mA transmitter which delivers 20mA in correspondence of 100 L E L Setting of the parameter Zone fs must be 100 L E L LJ LVSOD FRQFHQWUDWLRQ YV QSXW XUUHQW This chart is valid for the use of a 4 20mA transmitter which delivers 20mA in corres...

Страница 7: ...e as point 3 but for Zone 4 6KLIW OHIW EXWWRQ This key is used during configuration to move to previous submenu HFUHDVH EXWWRQ This key is used during configuration to decrease values in numeric fields as well as to cycle through different options for a given parameter QWHU EXWWRQ This key when in configuration mode allows to enter the various menus and to confirm the selected parameter RGY 000 MB...

Страница 8: ...ying energy to the central unit in case of power lack In this diagram type ACC SGB12 has been used 9 DV VKXW RII HOHFWURYDOYH 9DF This wiring diagram is valid for Normally Closed type electrovalve 6 6 DV VHQVRUV In this diagram remote sensors of the SGY series are used please refer to the sensor User Manual for additional informations LU H WUDFWRUV 9DF These are activated when the pre alarm relay ...

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