Halma SENSITRON GALILEO 32 User manual

GALILEO 32
SENSITRON
A Halma Company
GALILEO 32
Manuale/Manual
MT2276E
SENSITRON S.R.L. - All rights reserved - www. sensitron.it
Gas contro panel
for addressable gas detectors
Manuale / Manual
MT2276E REV2 18/05/2018©
Sensitron S.r.l., Viale della Repubblica 48, Cornaredo (MI)
[email protected]
TEL. [phone] FAX. [phone]

SENSITRON
A Halma Company
MT2276E
GALILEO 32
Manuale/Manual
P. 2/14
EN
This manual must be carefully read by all persons who have or will have the responsbility for installing, using or servicing this product. Like any
equipment, this product will perform as designed only if installed, used and serviced in accordance with the manufacturer’s instructions. Otherwise, it
could fail to perform as designed and persons who rely on this product for their safety could suer severe personal injury or death.The warranties made
by Sensitron s.r.l. with respect to this product are voided if the product is not installed, used and serviced in accordance with the instructions in
this user guide. Please protect yourself and others by following them. We recommend our customers to write or call regarding this equipment prior to use
or for any additional information relative to use or repair.
EN
P. 3 1. Introduction
P. 5 2. Installation
P. 10 3. System power up and operation
P. 16 4. User levels
P. 17 5. Menu’s details
P. 27 6. PC configuration software

SENSITRON
A Halma Company
MT2276E
GALILEO 32
Manual (EN)
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1. Introduction The present manual explains the procedures for installing, operating and pro-
gramming, as well as some aspects related to the commissioning and mainte-
nance for the control unit Galileo 32.
. DETECTION CONTROL PANEL CHARACTERISTICS
The GALILEO 32 is an advanced multifunction gas detection control panel de-
signed to control and monitor up to 32 SMART 3G detectors connected on a
closed RS 485 serial loop.
Always keeping the main focus on security, the GALILEO 32 control panel has
been developed according to the European standards on functional safety, the
SIL (Safety Integrity Level) requirements (European Standard EN 50402). Re-
dundancy has been implemented in every module being part of the system and
with the correct installation the system comply with the functional safety require-
ments up to SIL 3. On the GALILEO 32 front plate, an high brightness display pro-
vides an ongoing reading of the concentration being measured and, in case of
an alarm, the alarm threshold attained and the respective channel.
The unit comes into a metal cabinet complete with 24Vdc, 5A power supply and
oers the possibility to allocate 2 back-up batteries max. 12V 7 Ah.
An RS232C serial port for connection to a Personal Computer is available, which
permits the remote programming of the control panel with a substantial reduc-
tion in time.
. SYSTEM CONFIGURATION
Figure 1.2
System block diagram

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A Halma Company
MT2276E
GALILEO 32
Manual (EN)
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. TECHNICAL SPECIFICATIONS
Housing Metal cabinet 430 x 405 x 140 mm.
Inputs Max. 32 detectors type SMART “S” on 1 x RS485 closed bus
Outputs 8 relay board mounted in the control panel
Relay contact rating 16 A 250 Vac
Serial ports 1 x RS485 and 1 x RS232
Power Supply 230V AC +/- 10% 50Hz
Power consumption Max 10 VA
Backup battery 2 x 12V 7 Ah max
Display LCD backlight 128x128 points
Visual indications LED 8 double LED on the front panel
Temperature Operational 0-55°C
Storage -20 / +70 C°
Relative humidity Operational 15-85%
Storage 5-85%
(non condensing)

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A Halma Company
MT2276E
GALILEO 32
Manual (EN)
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2. Installation . CONTROL UNIT
Installation cabinet: IP20 minimum.
Devices installed in zone that have been classified and connected to control unit
shall be protected with one of the types of protection listed in EN 60079-0, corre-
sponding to their own category.
Analogue 4-20 mA detectors to be connected shall comply with the following in-
terface specification:
Signals < 3 mA will be interpreted as fault low.
Signals between 3 mA and 4 mA will be indicated as negative signal.
Signals between 20 mA and 21 mA will be indicated as signal above the
measuring range.
Signals > 21 mA will be interpreted as fault high.
Digital RS 485 detectors to be connected shall comply with the high security
data transmission protocol SIL3.
Have the control unit mounted by using the three mounting holes on the back
part of the cabinet.
Connect the three core mains supply cable to the power supply terminals (1.5
mm2per core minimum) and have it secured with the appropriate cable grip.
Connect the Power supply and the RS485 line for the detectors to the terminal
block before powering up the control panel.
After powering up the control panel, connect the red and black power supply ca-
bles fitted with Faston connectors to the 2 x sealed lead acid batteries (12 Vdc / 7
Ah max.). The battery should be carefully fitted inside the space at the left side of
the cabinet.
Figure 2.1
a) Control panel cabinet

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MT2276E
GALILEO 32
Manual (EN)
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. GAS DETECTORS
GALILEO 32 gas control panel can be connected to Sensitron’s SMART “S” de-
tector version.
Detectors are to be duly installed according to the gas to be detected and in ful-
filment of all EU or national rules in force. Before installing the gas detectors, we
recommend to strictly follow what stated in the detectors’ handbook and to con-
sider the few rules given here below just as a generic prescription.
As a general statement, detectors should be mounted close to any possible
source of release or where any eventual gas stagnation could be foreseen.
To measure a gas with specific weight higher than air, like Propane or Butane,
the detectors should be installed at 30 cm. from floor. Whereas to detect a gas
with specific weight lighter than air, like Methane or Hydrogen, the detectors
should be placed 30 cm. from ceiling.
To detect Carbon Monoxide or Oxygen, we recommend to mount the detector at
a breathing level or “nose height” about 150 cm. from floor, while for CO2 (Car-
bon Dioxide) detectors should be mounted at 30 cm from the floor.
For the remaining gases not mentioned as an example here above, we invite our
customers to contact Sensitron or its local agent or to consult our Tutorial Guide
to Gas detection. We remind that the correct positioning of a gas detector is vital
to assure a prompt and accurate detection.
Communication between the GALILEO 32 and the detectors is by a closed
RS485 loop. For the electrical connections, please refer to the Smart “S” detec-
tor instruction manual.
Figure 2.1
b) Power supply and battery connection details

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Manual (EN)
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. LAYOUT OF THE CONTROL UNIT MAIN BOARD
All connections of the GALILEO 32 control panel are to be performed on the
main board. See below the layout.
Figure 2.3
Main board layout
. SYSTEM WIRING
Communication between the GALILEO 32 and the detectors is by a closed
RS485 loop. The control panel constantly monitors the detectors. A break in the
communication from any one of the detectors generates a Fault status in the
control panel.
. GAS DETECTORS CONNECTION
Wirings between the control panel and the remote devices should be made by a
closed loop and by 4 wires: 2 wires for the RS485 communication and 2 wires for
the power supply. The cable for the RS485 communication must an EIA RS485: 2
core wires with section 0.22 / 0.35 mm2 and shield (twisted pair). Nominal capac-
ity between the wires < 50pF/m, nominal impedance 120 ohm. These features
can be found in BELDEN cable 9842 or similar (data transmission cable in EIA
RS485). By this wiring, the line total length should not exceed 1000m.
Detectors are to be daisy chained. Absolutely avoid any star or tree mode con-
nection to prevent interference or wrong communication.
Make sure that each multi-polar wire includes just one RS485.
For the detectors’ power supply connection use a 2-wire cable with suitable sec-
tion as a function of the distance and the number of detectors.
Once the installation has been completed and the system is powered-on, make
sure that each detector gets at least 12 or 24 Vdc (it depends in the used power
supply.

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MT2276E
GALILEO 32
Manual (EN)
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Figure 2.5
Detector connections
. RELAY OUTPUT CONNECTION
For the programming of the relays functions, the PC software is required. Any-
way, the relays 1, 2 and 3 are already set to trigger for System Fault (Relay 1 re-
dundant with Relay 2) and for Emergency (Relay 3).
Relays from 4 to 8 can be configured by the user. The relay output is a single
pole change over; this\ can be used to drive output devices that require a clean
set of contacts, isolated from the output voltage.
Figure 2.6
Relay output connection

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MT2276E
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Manual (EN)
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. SERIAL CONNECTION TO A PERSONAL COMPUTER
The control panel can be connected to a Personal Computer using the RS485
serial port, to permit initial programming.
Below the connection to the Personal Computer.
Figure 2.7
Personal computer connection
3. System power up
and operation
The chapter explains the procedures for the operation, the commissioning and
the maintenance of the control unit Galileo 32.
For the programming of the Galileo 32 control panel the PC software is required.
The communication between the user and the central unit is done by means of
an LCD display. In the various system states, various screens will be shown on
display. A few general rules apply at any level as follows:
- Should there is a list displayed, scrolling through may be done using
the UP/DOWN and LEFT/RIGHT arrow keys. Once a selection has been
made, in some menus, pressing ENTER key will switch to a more
detailed view of that particular selection.
All the arrow keys, UP/DOWN, LEFT/RIGHT are being used also to
move through the parameter under change fields.
At any display level, pressing the ESCAPE key instead will switch back
to the previous view. Pressing twice the ESCAPE key will take back to
the main screen.
The same, at any display level, should the keys are not pressed for
more that 3 minutes, the view will automatically switch back to the
main window of the Normal mode.

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MT2276E
GALILEO 32
Manual (EN)
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. POWER ON
After ensuring correct installation of the Galileo 32, the unit can be switched on.
When first switched on, after the “Warm Up” time (3 minutes by default – pro-
grammable 120-180 seconds) the control panel display will show an empty pi-
cture without any indication because, at the first switch ON, in the control panel
there is not any programming.
Figure 3.1
a) Warm Up screen.
The control panel programming must be performed just by the Personal Com-
puter with the dedicate configuration software (see the previous paragraph for
the connection of the control panel to the PC).
For an already configured control panel, the normal screen will show eight chan-
nels (detectors) with their status:
Figure 3.1
b) Typical NORMAL state screen.