Notifier MINIGAS Assembly instructions

NOTIFIER ITALIA
Installation and Programming Manual
Documento: M-011.1-MGAS-ENG
Edizione: 12/2001 Rev.: A.1
MINIGAS
Control Panel

INDICE Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-661.1-GL91B-ENG Rev. A.1 2_Minigas2001-user-eng
INDEX
1 – GENERAL DESCRIPTION ………………………………………………………………………….. 1
1.1 Front Panel ……………………………………………………………………………………… 1
1.2 Inside …………………………………………………………………………………………….. 2
2 – CONTROL PANEL DESCRIPTION ………………………………..……………………………….. 2
2.1 Lines operation ………………………………………………………………………………..… 2
3 – KEYBOARD DESCRIPTION …………………..…………………………………………………..….. 2
3.1 Password access level 2 ……..……………………………………………………………….. 2
3.2 Control panel's operational description ………………….………………………………….. 3
4 – FRONT PANEL INDICATIONS ………………………………………………………………………. 5
5 – ACCESS LEVEL ……………………………………………………………………………………….. 7
5.1 Level 1 …………………………………………………………………………………………… 7
5.2 Level 2 …………………………………………………………………………………………… 7
5.3 Level 3 …………………………………………………………………………………………… 7
5.4 Level 4 …………………………………………………………………………………………… 7
6 – TROUBLE AND WARNINGS LIST ………….…..…………………………………………………… 7
7 – PRE-ALARM AND ALARM MANAGEMENT ……………………………………………………….. 8
7.1 Pre-alarm and alarm masked - unmasked …….……………………………………………. 8
7.2 Zone pre-alarm and alarm ……..…………………………………………….……………….. 8
7.3 General pre-alarm and alarm ..……………………………………………………………….. 9
8 – TROUBLE MANAGEMENT ………………………………………………………………………….. 9
9 – ELECTRIC FEATURES ……………………………………………………………………………….. 10
9.1 Grounding ….……………………………………………….……………………………………. 10
9.2 Control panel power supply …………………………………………………………………… 10
9.3 Power supply ……………………………………………………………………………………. 10
9.4 Battery charger section ………………………………………………………………………… 10
9.5 Maximum detector allowance on each line ………………………………………………….. 10
9.6 Relay Outputs ……………………………………………………………………………………. 10
10 – INSTALLATION ……………………………………………………………………………………….. 11
10.1 Power supply and battery connection ….……………………………………………………. 12
10.2 Internal power supply and battery connection ….…………………………………………… 12
10.3 Detectors' lines ……................…………………………….………………………………….. 12
10.4 Auxiliary alarm devices ….…………………………………………………………………….. 13
10.5 Front panel layout ……………..……………………………………………………….………. 14
10.6 Base board layout ………………………………………………….…………………………… 15
11 – GAS DETECTION LINES OPERATION …………………………..…………………………………. 16
11.1 Detection lines features ……………………………………………….…………………….….. 16
11.2 Operations window of panel controlled lines ……………………….……………….………. 16
12 – BASE BOARD ……………………………………………………………….…………………………. 16
12.1 Connector CN0A base board“N2BA” ………..………………………………………………... 16
12.2 Connector CNA base board“N2BA” …………………………………………………………. 17
13 – DIP SWITCH PROGRAMMING ………………………………………………………………………. 17
13.1 Dip switch SW1 frontal board “N2FR” ……………..………………………………….……... 17
14 – MAIN POWER SUPPLY – Current draw calculation ..…………………………………………….. 18
14.1 Current draw calculation in stand-by condition ………………………………………………. 18
14.2 Current draw calculation in pre-alarm and alarm condition …………………………………. 18

MINIGAS 2001 Installation and Programming Manual Pag. 1
2_Minigas2001-user-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
1– GENERAL DESCRIPTION
MINIGAS is a microprocessor fire alarm control panel with 2 detection zones.
Each zone (or Line) can hold up to 3 gas detectors.
The control panel's cabinet is provided for wall mounting.
The control panel houses a 24 Vdc regulated power supply to drive the control panel, all connected detectors,
and re-charge the stand-by battery.
There is an output available to supply external loads such as Strobes, Horns, etc.
1.1 Front Panel
On the front panel there are push-bottons for the following functions:
•ACK (acknowledgment)
•SOUNDER SILENCE
•SOUNDER MASK
•ALARM RESET
•ZONE MASK - UNMASK
•WALK - TEST OPERATION LAMP TEST
•SIGNAL SILENCE
•PASSWORD ACCESS
There are INDICATION LED to indicate:
•Masked - Unmasked line (2 LED for line).
•Line Alarm (1 LED for line)
•Line Pre-alarm (1 led for line).
•Line Trouble (2 LED for line, cut and short circuit).
•General Pre-alarm.
•General Alarm.
•General Trouble.
•AC Power.
•Battery trouble.
•Zone Walk-test in progress.

Pag. 2 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 2_Minigas2001-user-eng
1.2 Inside
Inside the control panel on CPU board there are two blocks of 8 switches to allow the programming .
The following outputs are available on the main panel terminal block:
•2 x ZONE PRE-ALARM TRANSISTOR OUTPUTS - Outputs O.C. 30 mA – 24 Vdc.
•2 x ZONE ALARM TRANSISTOR OUTPUTS - Outputs O.C. 30 mA – 24 Vdc.
•GENERAL ALARM - 1 contact relay, voltage-free.
•GENERAL ALARM - 1 contact, 24 V supervised sounder output.
•GENERAL TROUBLE - 1 contact relay, voltage-free.
•PRE-ALARM - 1 contact relay, voltage-free.
2 – CONTROL PANEL DESCRIPTION
2.1 Lines operation
For each zone the following conditions are signalled:
•Zone in STAND-BY (without Alarm or Trouble).
•Zone in ALARM.
•Zone in PRE-ALARM.
•Zone in SHORT-CIRCUIT.
•Zone with WIRE CUT.
3 – KEYBOARD DESCRIPTION
3.1 Password access level 2
Password code := 1 2 3 4
Password keys

MINIGAS 2001 Installation and Programming Manual Pag. 3
2_Minigas2001-user-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
To execute next functions it is necessary to enter in password on level 2:
•RESET
•SOUNDER MASK
•SOUNDER SILENCE
•SIGNAL SILENCE
•LINES TEST
•LINES MASK - UNMASK
PASSWORD ACCESS (Level 2)
Press the PASSWORD ACCESS key until its Led does not blink.
Press in sequence keys 1-2-3-4.
At the end of sequence the led on PASSWORD ACCESS key is steady lighted.
The output from Level 2 occurs automatically after 5 minutes of keyboard inactivity or press PASSWORD
ACCESS key.
3.2 Operational description
MASKING AND UNMASKING PRE-ALARM LEVEL LINE 1 (WITH PASSWORD)
When a level is unmasked a pre-alarm detection is able on line 1.
Press 1 time the relative key to mask the line. The unmask status is indicated from relative led.
With masked threshold, led is off; with unmasked threshold, led is on.
MASKING AND UNMASKING ALARM LEVEL LINE 1 (WITH PASSWORD)
When a level is unmasked an alarm detection is able on line 1.
Press 1 time the relative key to mask the line. The unmask status is indicated from relative led.
With masked threshold, led is off; with unmasked threshold, led is on.
 NOTE : A line is mask when both levels are mask.

Pag. 4 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 2_Minigas2001-user-eng
MASKING AND UNMASKING PRE-ALARM LEVEL LINE 2 (WITH PASSWORD)
When a level is unmasked a pre-alarm detection is able on line 2.
Press 1 time the relative key to mask the line. The unmask status is indicated from relative led.
With masked threshold, led is off; with unmasked threshold, led is on.
MASKING AND UNMASKING ALARM LEVEL LINE 2 (WITH PASSWORD)
When a level is unmasked an alarm detection is able on line 2.
Press 1 time the relative key to mask the line. The unmask status is indicated from relative led.
With masked threshold, led is off; with unmasked threshold, led is on.
 NOTE : A line is masked when both levels are masked.
SOUNDER SILENCE (WITH PASSWORD)
To silence sounder (in case of alarm) press the SOUNDER SILENCE key.
SOUNDER MASK (WITH PASSWORD)
To execute the sounders output MASK (SOUNDER output is not activated in case of alarm) press this key. If
sounders are masked the general mask led and the led on this key will light.
SIGNAL SILENCE (WITH PASSWORD)
In case of pre-alarm or alarm of a line, this key allows the silence outputs only when a normal condition is
restored on the line. (the yellow led on the key is blinking).
SILENCE INTERNAL BUZZER & ACKNOLEDGE (WITHOUT PASSWORD)
To execute SILENCE BUZZER in case of alarm or trouble press ACK key.
SYSTEM RESET (WITH PASSWORD)
To reset detector lines (in case of trouble or alarm) press the reset key after pressing the acknoledge key
(ACK).
 NOTE: Please refer to control panel's flow-charts.

MINIGAS 2001 Installation and Programming Manual Pag. 5
2_Minigas2001-user-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
LINES WALK-TEST
If you press the WALK-TEST key and at the same time the THRESHOLD LINE MASK key , it is possible to
start a walk-test of the selected line.
Both the YELLOW leds of line-mask and of the WALK-TEST key are blinking.
The user can make an alarm (one sensor at a time), to verify that the control panel points out the alarm, and
then, wait that the control panel reset automatically.
To stop WALK-TEST execute the same procedure.
 NOTE : If alarm to detectors is provided it is necessary to wait for the detector's chamber to
clear from the smoke.
LAMP-TEST
Without not silenced alarms and troubles, if you press LAMP-TEST key, all led are on for 5 seconds.
4 – FRONT PANEL INDICATIONS
ALARM ALARM
Management
Stand-by
(no alarms nor troubles)
RESET
ACK
10 11 12 13 1
2
3
4
5
6
7
8
9
14 15 16
17 18 19
20 21 22

Pag. 6 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 2_Minigas2001-user-eng
1 = GENERAL PRE-ALARM (RED) - Led on = Prealarm in progress.
2 = GENERAL MASK - Led blinking = Lines or Sounder masked or Lines in Walk-test.
3 =
POWER OK (GREEN)
- Led on = 220 Vac
- Led blinking = Failure power supply 220 Vac.
4 = GENERAL TROUBLE (YELLOW) - Led blinking = Trouble in progress.
5 = CPU TROUBLE (YELLOW) - Led on = Microprocessor anomaly.
6 = POWER SUPPLY TROUBLE (YELLOW)
- Led blinking = Battery discharged or not connected or battery fuse interrupted.
7 = FUSE TROUBLE (YELLOW) - Led blinking = Fuse 24 V User interrupted.
8 =
EARTH FAULT (YELLOW)
- Led blinking = Trouble in progress.
- NOTE: JDSP jumper (refer to frontal board) enable or disable the signalling about
the trouble of leakage earth.
9 = SOUNDER TROUBLE (YELLOW)
- Led blinking = Cut or short circuit of sounder output or sounder fuse interrupted.
10 = GENERAL ALARM (RED) - Led on = Alarm in progress.
11 =
PRE-ALARM LINE 1 THRESHOLD MASK (YELLOW)
- Led off = Pre-alarm level Line 1 unmasked.
- Led on = Pre-alarm level Line 1 masked.
12 = TROUBLE FOR CUT LINE 1 (YELLOW)
- Led blinking = Line 1 in Trouble for Cut.
13 = PRE-ALARM LINE 1 (RED) - Led blinking = Line 1 in Pre-alarm.
14 =
ALARM LINE 1 THRESHOLD MASK (YELLOW)
- Led off = Alarm level Line 1 unmasked.
- Led on = Alarm level Line 1 masked.
15 = TROUBLE FOR SHORT CIRCUIT LINE 1 (YELLOW)
- Led blinking = Line 1 in trouble for short circuit.
16 = ALARM LINE 1 (RED) - Led blinking = Line 1 in Alarm.
17 =
PRE-ALARM LINE 2 THRESHOLD MASK (YELLOW)
- Led off = Pre-alarm Line 2 threshold unmasked
- Led on = Pre-alarm Line 2 threshold masked.
18 = TROUBLE FOR CUT LINE 2 (YELLOW)
- Led blinking = Line in Trouble for Cut.
19 = PRE-ALARM LINE 2 (RED) - Led blinking = Line 2 in Alarm.
20 =
ALARM LINE 2 THRESHOLD MASK (YELLOW)
- Led off = Alarm Line 2 threshold unmasked
- Led on = Alarm Line 2 threshold masked.
21 = TROUBLE FOR SHORT CIRCUIT LINE 2 (YELLOW)
- Led blinking = Line 2 in trouble for short circuit.
22 = ALARM LINE 2 (RED) - Led blinking = Line 2 in Alarm.
 N.B. : When for one line the 2 thresholds (pre-alarm and alarm) are cut out, the line is totally
excluded; cut line and short circuit troubles are not detected.

MINIGAS 2001 Installation and Programming Manual Pag. 7
2_Minigas2001-user-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
5 – ACCESS LEVEL
5.1 Level 1
ACCESS : no password.
ACTIONS ENABLED : −Troubles and alarms acknowledgement through ACK key.
−Panel lamp test.
5.2 Level 2
ACCESS : password code.
ACTIONS ENABLED : −Troubles and alarms reset.
– Sounder silence.
– Mask/unmask pre-alarm, alarm.
– Test lines.
– Signal silence.
5.3 Level 3
ACCESS : opening panel cabinet.
ACTIONS ENABLED : specific data configuration through dip switch.
5.4 Level 4
Use of external programming instrument (PC) for software updating.
6 – TROUBLES INDICATION LIST
•MAINS TROUBLE
Indication : Power supply trouble, blinking
Activation delay: instantaneous or 5 minutes (programmables)
Reset delay: 5 s
•USER SUPPLY VOLTAGE TROUBLE
Indication : :Power supply trouble
Activation delay : 10 s
Reset delay : 5 s
•BATTERY CHARGER VOLTAGE TROUBLE
Indication : Power supply trouble
Activation delay : 10 s
Reset delay : 5 s
•DISCONNECTED BATTERY
Indication : Power supply trouble
Activation delay : every 60 s
Reset delay : every 60 s
•BATTERY FAULTY
Indication : Power supply trouble
Activation delay : every 60 s
Reset delay : every 60 s

Pag. 8 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 2_Minigas2001-user-eng
•PANEL DC POWER SUPPLY VOLTAGE TROUBLE
Indication : Power supply trouble
Activation delay : 10 s
Reset delay : 5 s
•ZONE TROUBLE
Indication : Line trouble
Activation delay : 1 s
Reset delay : 1 s
•USER FUSE TROUBLE (CPU BOARD)
Indication : Fuse trouble
Activation delay : 0.5 s
Reset delay : 0.5 s
•EARTH FAULT (+) / (-)
Indication : Earth trouble
Activation delay : 2 s
Reset delay: 1 s
•SUPERVISED LINE TROUBLE (SOUNDER)
Indication : Supervised lines trouble
Activation delay : 2 s
Reset delay : 1 s
•MICROPROCESSOR TROUBLE
Indication : CPU trouble
Activation delay : 0
Reset delay : -
•RESET WATCH DOG
Indication : CPU trouble
Activation delay : 0
Reset delay : permanent up to System RESET.
7 – PREALARM AND ALARM MANAGEMENT
7.1 Prealarm and Alarm exclusion / inclusion
The exclusion and inclusion of prealarm and alarm threshold can be done at level 2 through the proper key.
The possibility to operate an exclusion is restrained in the following case:
- Lines test in progress.
When a threshold zone is excluded, the proper exclusion led is ON and the verification of the relative event
on the line has no consequence on the activations and segnalations of the panel. Besides, eventual
activations in progress depending only from the excluded threshold are resetted . If both thresholds of a zone
are excluded, the detection of a trouble on the line is restrained and eventual active trouble or their
memorization are resetted.
7.2 Prealarm and Alarm Zone
When the relative exclusions are not activated, the zone leds and the open collector outputs activate in
consequence of the state of lines according to the programmed modality.
NORMAL : the relay outputs will activate when the condition on the line are established and are resetted only
with a manual reset. Alarm and prealarm leds of zone blink or remain ON according to the condition on the
line. (if it is active or not)

MINIGAS 2001 Installation and Programming Manual Pag. 9
2_Minigas2001-user-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
TRACKING : the output relay follow the state of the line and therefore they reset automatically if the condition
declines.
7.3 Genaral Prealarm and Alarm
The general condition establishes when at least one of the two zones is in the condition:
The general prealarm condition produces:
- The lighting of the relative luminous indication.
- The activation of the relative relay output.
- The intermittent activation of the 1Hz buzzer.
The general alarm condition determines:
- The lighting of the relative luminous indication.
- The activation of the relative relay output.
- The intermittent activation of the 2Hz buzzer.
- The activation of the sounder output.
During the above situations, the buzzer through the ACK key (LEVEL 1), and the sounder with the relative
silence key (LEVEL 2) can be silenced and riactivated in an indipendent way. The sounder can also be
permanently excluded with the exclusion key (LEVEL 2).
At the expiry of the prealarm and alarm of the zone, the outputs will be disactivated after the programmed by
internal dip-switch activation time or instantaneously through the key Output Silence (LEVEL 2). This key has
effected on the buzzer, on the relay outputs and on the open collector outputs, while the leds of the zone
mainatains memory of the events and reset with the reset key.
The silenced alarms can always be resetted with the reset key , but they will re-presentr again after about 1
second if the conditions on the line are not declined.
8 – TROUBLE MANAGEMENT
The indications of trouble are visualized through specific leds: general, relay output and the constant
activation of the buzzer
SPECIFIC TROUBLE LED:
- LIGHTING with relative trouble active and troubles not silenced.
- ON with relative trouble self-resetted or silenced troubles.
GENERAL TROUBLE LED:
- LIGHTING with at least 1 trouble active and troubles not silenced.
- ON with at least 1 active trouble and silenced troubles.
OUTPUT TROUBLE RELAY:
- ON with at least one active trouble
(The trouble on a zone in test does not activate the trouble relay).
BUZZER:
- ON with at least 1 present trouble and troubles not silenced.
Troubles are recognized through ACK key that silences the buzzer and fixes the luminous indications.
New troubles, arrived after the acknowledgment, must be recognized through the ACK key. The return at the
normal state of the zones involves the automatic silence of the panel. In a silence condition pressing ACK key
it is possibile to obtain the reactivation of the buzzer and the lighting of the luminous indications relative to the
troubles already active. With the reset key it is possible to reset the luminous indications relative to setted
troubles already active are again reproposed.

Pag. 10 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 3_Minigas2001-install-eng
9 – ELECTRIC FEATURES
9.1 Grounding
Grounding must comply with CEI and ISPELS standards and have a resistance inferior to 10 Ohms
(measured at drain- well with equipment disconnected).
9.2 Control panel power supply
The control panel is powered through the mains and in case of mains failure the battery housed in the panel's
cabinet ensures normal operation.
Power supply requirements are:
•Voltage: 230 Vac single-phase + 10%, - 15%.
•Rated frequency: 50 Hz +/- 0.5 Hz (+/- 1%).
 NOTE: Special care should be taken when the installation is located close to electromagnetic
sources (i.e. repeaters, radio-bridges, motors, etc.).
9.3 Power supply
Power supply has the following features:
•Voltage = 24 Vcc nominal.
•Max. Current = 1,45 A total (control panel, battery charger, output User, sounders).
•Max. Current User = 24 Vdc nominal – 0,8 A max.
•Battery charger = 27,6 Vdc – 0,45 A max.
9.4 Battery charger section
•Voltage Output = 27.6 V.
•Current Output = 0,45 A – Ripple max = 300 mV.
•Connectable batteries = 2 * 12 V, 7 Ah.
•Secondary power stand-by time = min. 8 hours
(max. detectors connected, 2 batteries 12 V, 7 Ah charge).
FUSE LIST
•On 230 V mains voltage = 2 A FAST.
•On sounder output = 0.8 A FAST.
•On battery input = 3.15 A FAST.
•On user output = 0.8 A FAST.
9.5 Maximum detector allowance on each line
The maximum number of detectors on each line is 3.
9.6 Relay outputs
FUNCTION
CPU Board
General Alarm
General Alarm
General Trouble
Pre-alarm
FEATURES
1 24 Vdc/ 1 A supervised contact.
Max 24 V/3 A resistive, 1 free contact.
Max 24 V/1 A resistive, 1 free contact (norm. energ.)
Max 24 V/1 A resistive, 1 free contact.

MINIGAS 2001 Installation and Programming Manual Pag. 11
3_Minigas2001-install-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
10 – INSTALLATION
The control panel is provided for wall mounting through 5 blocking dowels (on brick walls) or thread studs (on
panels etc.). The maximum screw diameter is 5 mm.
The control panel should not be installed near heat sources (radiators, heaters, etc.).
The panel may be opened unscrewing the top cover.
Wires connecting detectors, auxiliary devices and power supply may be passed on through the lateral holes
running them along the cabinet internal side providing sufficient length especially for those connected to the
CNA terminal block.

Pag. 12 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 3_Minigas2001-install-eng
10.1 Power supply and battery connection
The power supply cable must preferably pass near the relative terminal block.
The connection to the 230 V power supply shall be made through 3 conductors cable (phase, neutral, earth).
The registration of the earth conductor coming from the main shall be connected to the CNA terminal block.
Power supply connection shall be made in the following sequence:
1 - Open the installation 230 Vac power supply general switch.
2 - Disconnect terminal block CNA from the control panel.
3 - Connect the power supply cable on the CNA terminal block.
4 - Reconnect terminal block CNA.
5 - Programme the control panel through DIP-SWITCH SW1 (refer to frontal board).
6 - Close the mains general switch.
7 - Install and connect batteries as specified in this manual.
 NOTE: When the control panel is powered it starts up automatically.
Full battery recharge will last some hours, depending on how long the batteries have
remained on stock.
8 - Close the control panel.
10.2 Internal power supply and battery connection
The control panel is provided with and internal power supply- battery charger connected to the batteries via
the 4 pre-wired cables (refer to base board).
The power supply porvides 27,6 Vcc voltage and max. 450 mA current.
The two batteries mustbe featured as follows:
•nominal voltage = 12 Vdc
•service capacity = 7 Ah max.
10.3 Detectors' connection lines
Detectors' connection line are a 3 wires.
•CABLE TYPE: a 3 wires (shielded).
•MAX. WIRE LENGTH.
SECTION:
- up to 200 mt 3 x 0,5 mm²
- up to 400 mt 3 x 1,5 mm²
ATTENTION: Unused lines must always terminate with a 2,2KΩ, 5%, 1/4 W resistance on the panel
terminal block to prevent a line cut signal.

MINIGAS 2001 Installation and Programming Manual Pag. 13
3_Minigas2001-install-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
END OF LINE
RESISTOR
2,2 KΩ¼ W
Wiring connection diagrams:
LIN +
IN
LIN -
1234 5678
NC C NO
S
+
-
10.4 Auxiliary alarm devices
Through the first General Alarm output the control panel may drive a 24 VDC sounder.
The panel checks permanently the control line integrity (against Cut and Short-circuit).
For this function the sounder shall have an end-of-line resistance.
The output is protected by a 1A fuse.
+
-
M1-19
M1-2
0
2K7
1/4W
The second General Alarm output gives the user a free change-over contact with jumper selection of N.O. or
N.C. output (JALL refer to base board).
The CPU board also includes:
•PRE-ALARM OUTPUT:
n. 1potential-free contact with N.A. or N.C. output selectable by jumper (JPRALL refer to base
board).
•GENERAL TROUBLE OUTPUT:
n. 1potential-free contact with N.A. or N.C. output selectable by jumper (JGST refer to base board).
All these contacts are potential-free, isolated from internal circuitry contacts.
VULGAS
DETECTOR
SERIE VG
DETECTOR
SERIE BDS-EP
DETECTOR
1N4004
SPEGNIARCO DIODE

Pag. 14 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 3_Minigas2001-install-eng
10.5 Frontal board topographical

MINIGAS 2001 Installation and Programming Manual Pag. 15
3_Minigas2001-install-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
10.6 Base board topographical

Pag. 16 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 3_Minigas2001-install-eng
11 – GAS DETECTION LINES OPERATION
11.1 Detection lines features
Stand-by trouble alarm level Line status
Higher absorption than the short circuit threshold
2K2 + 25mA SHORT
Alarm status absorption
2k2 + 15mA ALARM
Pre-alarm status absorption
2k2 + 5mA PRE-ALARM
End of line resistor
(2k2) STAND-BY
Lower absorption than the cut threshold
6k CUT
11.2 Operations window of panel controlled lines
SHORT CIRCUIT STAND-BY CUT
0 Ω200 Ω5 k ∞
12 – BASE BOARD
12.1 Connector CN0A base board“N2BA”
NO.
TERM. DENOMINATION NOTES CONTROL PANEL COLOR-
NO./CABLE
1. LIN + L1
2. IN L1
3. LIN - L1
Line 1 End of line resistor = 2k2-1/4W
4. LIN + L2
5. IN L2
6. LIN - L2
Line 2 End of line resistor = 2k2-1/4W
7. Not used
8. Not used
9. Not used
10. Not used
11. Not used
12. Not used
13. RL Gen. Trouble NO-NC selectable by JGST jumper
14. RL Gen. Trouble COMMON
MAX
1A
15. RL Pre-alarm NO-NC selectable by JPRALL jumper
16. RL Pre-alarm COMMON
MAX
3A
17 RL Alarm NO-NC selectable by JALL jumper
18 RL Alarm COMMON
MAX
3A

MINIGAS 2001 Installation and Programming Manual Pag. 17
3_Minigas2001-install-eng Doc. M-011.1-MGAS-ENG Rev. A.1 NOTIFIER ITALIA
19 RL Sounder LC + Reset End of line resistor = 2k7
20 RL Sounder LC - Reset
MAX
1A Supervisory current < 1,2 mA
21 OC ZONE 1 Pre-alarm 30 mA – 24 Vcc
22 OC ZONE 1 Alarm 30 mA – 24 Vcc
23 OC ZONE 2 Pre-alarm 30 mA – 24 Vcc
24 OC ZONE 2 Alarm 30 mA – 24 Vcc
25 POSITIVE 24 V USER 0.8A
26 NEGATIVE 24 V USER
12.2 Connector CNA base board “N2BA”
NO.
TERM. DENOMINATION NOTES CONTROL PANEL COLOR-
NO./CABLE
1. L1 Fase
2. PE Heart
3. L2 Neutre
13 – DIP SWITCH PROGRAMMING
13.1 Dip switch SW1 frontal board “N2FR”
In TRACKING mode the pre-alarm and alarm output relays and the pre-alarm and alarm relays check in
real time the zone pre-alarm and alarm status.
In no TRACKING mode the pre-alarm or alarm time remain active for the setted time even if the line has
been restored to the regular status.
PRE-ALARM activation time SW1-1 SW1-2
TRACKING mode
OFF
OFF
1 minute ON OFF
5 minutes OFF ON
15 minutes ON ON
ALARM activation time SW1-3 SW1-4
Infinite
OFF
OFF
3 minutes ON OFF
10 minutes OFF ON
15 minutes ON ON
OPEN COLLECTOR output mode SW1-5
NORMAL
OFF
TRACKING mode ON
In NORMAL mode the OPEN COLLECTOR output and the relative led zone memorize the events; in
TRACKING they follow the events recording in real time.

Pag. 18 Installation and Programming Manual MINIGAS 2001
NOTIFIER ITALIA Doc. M-011.1-MGAS-ENG Rev. A.1 3_Minigas2001-install-eng
MAINS TROUBLE activation time SW1-6
IMMEDIATE
OFF
5 minutes ON
SW1-7 : not used.
SW1-8 : not used.
14 – MAIN POWER SUPPLY – Current draw calculation
14.1 Current draw calculation in stand-by condition
Table 1 : current draw in stand-by condition (24Vcc)
Device type
Number of Devices x Current in Amps (cad.) Total Current / Type
Base board 2 lines 1 x 0,095 0,095
Gas detectors
(average value) ( ______ ) x 0,1
TOTAL
Total A
14.2 Current draw calculation in pre-alarm and alarm condition
Table 2 : current draw in pre-alarm and alarm condition (24Vcc)
Device type Number of
Devices
x Current in Amps (cad.) Total Current / Type
Gas detectors
in alarm ( ______ ) x 0,020
Gas detectors
in pre-alarm ( ______ ) x 0,010
EMA1224BR sounders ( ______ ) x 0,018
Other devices powered
from Minigas panel:
bells, sounders ….
( ______ )
( ______ )
x
x
( ______ )
( ______ )
TOTAL
Total B