Sentox

SENTOX IDI

TECHNICAL MANUAL

GAS CONTROL PANEL
FOR ADDRESSABLE GAS DETECTORS

SENSITRON S.r.l. Viale della Repubblica, 48
20010 CORNAREDO MI - Italy
Ph: + 39 02 93548155 Fax: + 39 02 93548089
E-MAIL: sales@sensitron.it

MT1714E.doc rev. 0 08/07/2008 Pagina 1 di 32

Technical Manual SENTOX IDI

Warning

THIS MANAUL MUST BE CAREFULLY READ BY ALL PERSONS WHO HAVE OR
WILL HAVE THE RESPONSIBILITY 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 SUFFER 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.


INDEX
1) INTRODUCTION................................................................................................................................... 4
1.1) DETECTION CONTROL PANEL CHARACTERISTICS................................................................................. 4
1.2) SYSTEM CONFIGURATION .................................................................................................................. 4
1.3) TECHNICAL SPECIFICATIONS ............................................................................................................. 5
2) INSTALLATION .................................................................................................................................... 5
2.1) CONTROL UNIT................................................................................................................................. 5
2.2) GAS DETECTORS ............................................................................................................................. 6
2.2.1) SMART 3 GAS DETECTOR ......................................................................................................... 6
2.2.2) SMART3 DETECTORS ADDRESS PROGRAMMING......................................................................... 7
2.2.3) LCR 3 PK IDI DETECTORS ........................................................................................................ 8
2.3) OUTPUT CARDS G/OUT16................................................................................................................ 9
2.4) CONNECTION LAYOUT OF THE CONTROL UNIT MAIN BOARD ................................................................ 10
2.5) SYSTEM WIRING ............................................................................................................................. 10
2.6) GAS DETECTORS CONNECTION ........................................................................................................ 10
2.7) OUTPUT MODULE CONNECTION ....................................................................................................... 12
2.8) SERIAL CONNECTION TO A PERSONAL COMPUTER ............................................................................ 12
3) SYSTEM POWER UP AND OPERATION.......................................................................................... 13
3.1) OPERATION OF THE SENTOX IDI CONTROL PANEL .......................................................................... 13
3.1.1) START-UP OPERATION OF THE CONTROL PANEL ........................................................................ 14
3.1.2) SYSTEM SET ....................................................................................................................... 15
3.1.3) SYSTEM UNSET .................................................................................................................. 15
3.1.4) ALARM STATUS................................................................................................................... 15
3.1.5) EVENT LOG............................................................................................................................. 16
4) PROGRAMMING MENU..................................................................................................................... 16
4.1) PROGRAMMING BY THE CONTROL PANEL KEYPAD AND DISPLAY ......................................................... 16
4.2) PROGRAMMING BY PC.................................................................................................................... 18
5) PCM 602 CONFIGURATION SOFTWARE (OPTIONAL) .................................................................. 19
5.1) INSTALLATION OF THE SOFTWARE .................................................................................................... 19
5.2) WIRING AND CONNECTIONS ............................................................................................................. 19
5.3) STARTING THE PROGRAM ................................................................................................................ 20
5.4) PARAMETERS PRE-SETTING ............................................................................................................ 20
5.5) CREATING A NEW CONFIGURATION FILE ........................................................................................... 21
5.5.1) GENERAL ................................................................................................................................ 21
5.5.2) PROFILES ............................................................................................................................... 22
5.5.3) CHANNELS .............................................................................................................................. 24
5.5.4) OUTPUTS ................................................................................................................................ 25
4-RELAY OUTPUT SETUP ......................................................................................................................... 26
5.6) SEND CONFIGURATION (DOWNLOAD) .............................................................................................. 28
5.7) RECEIVE CONFIGURATION (UPLOAD) ............................................................................................... 28
5.8) TEST MENU ................................................................................................................................... 29
5.8.1) STATE .................................................................................................................................... 29
5.8.2) EVENT LOG ............................................................................................................................. 30



1) INTRODUCTION
1.1) Detection control panel characteristics
The gas control panel SENTOX IDI has been designed for light industrial applications and can
be connected to 32 SMART 3 IDI or LCR3 PK IDI detectors daisy chained to the RS 485 bus.
On the SENTOX IDI front plate, an OLED Pictiva 96x64 high brightness display provides an
ongoing reading of the concentration being measured and, in case of an alarm, the alarm
threshold attained and the respective channel.
Each threshold or function is visualised by a double LED raw. Acknowledge, Reset, and Set
functions can be activated by 3 push buttons placed nearby the LED's.
The display also shows the highest gas concentration reached by each detector being
connected. SENTOX IDI is provided with 5 output relays, of which three are associated to the
alarm thresholds, 1 to Fault and 1 to WD (Watch Dog).
The panel also features the implementation of further 32 optional outputs via remote
ST.G/OUT16 cards.
The unit comes into a metal cabinet complete with 24Vdc, 3A power supply and offers the
possibility to allocate 2 back-up batteries max. 12V 7 Ah.
To offer higher safety, an interactive RS485 output has been implemented for the connection to
a supervising system.

1.2) System configuration

FINO A 30 RIVELATORI GAS SMART3 IDI O LCR 3 PK IDI 2 MODULI USCITA
2 X OUTPUT MODULES
UP TO 30 SMART3 IDI OR LCR 3 PK IDI GAS DETECTORS

16 USCITE OPEN
COLLECTOR

16 OPEN COLLECTOR
OUTPUTS
I/F Rs485 / 4 USCITE RELE’
USB or Rs232
(OPTIONAL)
4 RELAY OUTPUTS

PC PER PROGRAMMAZIONE

PC FOR CONTROL PANEL SET-UP


1.3) Technical specifications
Housing: Metal box 360x225x150 mm.
Inputs: Max. 32 detectors type SMART3 IDI or LCR3 PK IDI on 1 bus RS485.
Outputs: 5 relay board mounted in the control panel + 32 remote open collector
outputs (optional) by the 2 remote card (16 Open Collector for each remote
card), on the RS485.
Relay contact rating 1A 24 Vdc 60VA
Serial Ports: N° 2 x RS485
Power Supply: 230V AC +/- 10% 50Hz
Power consumption: Max 6 VA
Backup battery 2 x 12V 7 Ah max.
Display: OLED Pictiva 96 x 64
Visual indications LED: 3 LED's for Alarm thresholds, 1 for Fault, 1 for powered unit.
Temperature: Operational 0-50°C Storage -20 / +70 C°
Relative humidity: Operational 15-85% Storage 5-85% (non condensing)
EMC compliance: EN 50270 (1999): Electromagnetic compatibility-Electrical apparatus for
the detection and measurement of combustible gases, toxic gases or
oxygen.
EN 61000-6-3 (2001)+A11 (2004):Electromagnetic compatibility – Part 6-3
Generic standard. Emission standard for residential, commercial and light
industry.

2) INSTALLATION
2.1) Control Unit
Have the control unit mounted by using the three mounting holes as shown in the figure below

358
179 179
26

5 mm
220
168

5 mm 5 mm
26

26 153 153 26



Connect the three core mains supply cable to the power supply terminals (1.5 mm2 per core
minimum) and have it secured with the appropriate cable grip.
Connect the Power supply and the RS485 line for the detectors and the output modules
(optional) to the CN3 terminal block before powering up the control panel.
After powering up the control panel, connect the red and black power supply cables 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.

27,4 Vdc/ 5A power supply
230
Vac
Battery Battery
12 V / 7 Ah 12 V / 7 Ah

2.2) Gas Detectors
SENTOX IDI gas control panel can be connected to Sensitron's SMART3 and LCR3 PK IDI.
Detectors are to be duly installed according to the gas to be detected and in fulfilment 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 consider 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 (Carbon 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.

2.2.1) SMART 3 gas detector
The following instructions explain how to insert the ST.S/IDI serial interface to make the
SMART3 CC and SMART3 CD communicate on RS485 bus.


Before inserting the ST.S/IDI interface, be sure the detector has been powered off. Insert the
vertical plug-in card into the 10-pole connector, paying attention to leave the two left side poles
free. Make sure the card has been fully plugged in.
Turn the side comprising the red LED towards the main terminal board, as shown in the drawing
here below.

SMART3 GAS DETECTOR BOARD
1 2 3 4 5 6

1 2 3 4 5 6
ON

ON
Rs485 board

2.2.2) SMART3 detectors address programming
On the RS485 serial line the detectors are daisy chained on one bus only. In order for the
system to work properly, it is very important the right identification through the defined code on
the detector’s electronic card.
The addressing is made by some dip-switches on the main PCB of the SMART3 detectors.
The serial loop accepts 32 detectors and 2 remote 16-output modules.
The addresses accepted for the detectors are from 02 till 33 included, while the addresses 0
and 1 are reserved to the output modules.
The table below shows how the dip-switches are to be set for the address definition.
The detector addressed as 2 on the loop is the identified as No. 1 to the control panel; the one
addressed as 3 is identified as No.2 to the panel and so on, till the address 33 that will be the
number 32 to the control panel.


Detector 1

Detector 2 Detector 3 Detector 4










Detector 32

2.2.3) LCR 3 PK IDI detectors
LCR3 PK IDI gas detectors have a RS485 serial output and are to be connected to Sensitron's
“IDI” control panels.
For the LCR3 PK IDI, the handheld calibration keypad ST.S/CKD must be used to set the
address of each detector being connected on the RS485 line.
The serial loop accepts 32 detectors and 2 remote 16-output modules.
The addresses accepted for the detectors are from 02 till 33 included, while the addresses 0
and 1 are reserved to the output modules.
The detector addressed as 2 on the loop is the identified as No. 1 to the control panel; the one
addressed as 3 is identified as No.2 to the panel and so on, till the address 33 that will be the
number 32 to the control panel



ST.CKD calibration keypad
LCR3 PK gas detectors
For LCR3 and SMART3 detectors

2.3) Output cards G/OUT16
The remote output cards ST.G/OUT16 should be fixed by using the 4 holes (3 mm) at the
corner of the card. The card can be housed in a plastic box (P/N ST.G/BOX) or in a power
supply cabinet P/N VM.B/138V15.
The cards are connected in RS485 serial mode (daisy chained) to the control unit, and they
need an identification addressing.
The figure here below shows the mechanical dimensions and the jumpers JP3 to addressing
the card.
105 mm
120 mm

+V A B -V

CN2

JP3
0
90 mm

75 mm

1
0123

CN1
O10
O11
O12
O13
O14
O15
O16
+v
O1
O2
O3
O4
O5
O6
O7
O8

+v
O9
-v

-v

The serial loop can accept up to 2 output boards with the following addressing:



2.4) Connection layout of the control unit main board
All connections of the SENTOX IDI are to be performed on the main board and are shown
below.

SENTOX “IDI” CONTROL PANEL

Rs485 serial line for the PC 24 Vdc dall’alimentatore
PC Rs485 serial line 24 Vdc from the Power
Supply unit

+
-
B (Rl5)
8 Uscita relè di WD (watch dog)
A NO Collegamento rilevatori.
W D (watch dog) re la output
y
(Bus Rs485 + alimentazione)
(Rl4) Uscita relè di Fault
Cn3

Fault relay output
NO Detector connections
- (bus Rs485 + power supply)
B
A 500 mA
1 + FUSE
NO
Al3
NC

Cn2
C (Rl3)

NO
NC Al2
C (Rl2)
NO
NC
Al1
C (Rl1)

Scheda Rs485 comm. con PC
Scheda Rs485 comm. rilevatori
PC Rs485 comm. board
Uscite relè di allarme
Detectors Rs485 comm. board
Relay alarm outputs

Layout circuito e connessioni elettriche / Circuit layout and electrical connections

2.5) System wiring
Communication between the SENTOX IDI and the detectors is by RS485 bus. The control panel
constantly monitors the detectors and the remote modules connected. A break in the
communication from any one of the detectors or modules generates a Fault status in the control
panel.

2.6) Gas detectors connection
Wirings between the control panel and the remote devices (detectors and the output modules)
should be made by using 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 capacity 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 1000 m.
Detectors and output modules are to be daisy chained. Absolutely avoid any star or tree mode
connection to prevent interference or wrong communication.


Make sure that each multi-polar wire includes just one RS485.
Make sure that a 120 Ohm end line resistor is placed at the beginning and at the end (on the
last detector or output module) of the bus line.

For the detectors' power supply connection use a 2-wire cable with suitable section 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 Vdc.

Collegamento rilevatori Smart3 IDI / Smart3 IDI detector connection

Schermo a terra da un solo lato
(earth at only one end)

m m
oh oh
0 0
12 12

* Power
supply
*
12/24 Vdc

* Make sure that a 120the bus line line resistance is placed at the beginning and at the end (on the last detector
or output module) of
ohm end of

Collegamento rilevatori LCR 3 PK / LCR 3 PK gas detectors connection

Schermo a terra da un solo lato
(earth at only one end)

Centrale Serial “A”
(control Serial “B”
panel) 12
0 oh
m

0 oh
m * *
12
ALIMENTATORE -
(POWER SUPPLY)
12 / 24 Vdc
+
+AB - + AB - + A B-

+ AB -

* Make sure that a 120 ohm end of line resistance is placed at the beginning and at the end (on the last detector
or output module) of the bus line



2.7) Output module connection
The connection of the remote output modules to the serial line of the RS485 bus is shown
below.
If the 16-output module is the last element of the chain, a 120 Ohm end of line resistance must
connected across the A and B terminals.

Collegamento rivelatori e moduli di uscita
(Detectors and output modules connection )

ALIMENTATORE ST/G OUT16
(POWER SUPPLY)
12 / 24 Vdc Output module

Smart3 IDI
gas detector

2.8) 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 or system management with the appropriate management software.
Below the connection to the Personal Computer.

SENTOX “IDI” PC
circuit Rs485 USB or
layout Rs232 interface
Rs485 serial line for the PC
PC Rs485 serial line

+
-
B
8
A NO
Cn3

NO

-
B
A 500 mA
NO
1 + FUSE
NC
Cn 2

C

NO
NC
C
NO
NC
C




3) SYSTEM POWER UP AND OPERATION

3.1) Operation of the SENTOX IDI control panel
On the SENTOX IDI front plate, a display provides an ongoing reading of the gas concentration
measured by each detector being connected and, in case of an alarm, the alarm threshold
attained and the respective channel.
Each threshold or function is visualised by a double LED raw. Acknowledge, Reset, and Set
functions can be activated by 3 push buttons placed nearby the LED's.
After a two-minute inactivity, the display intensity progressively fades. In case of alarm
or by simply pressing any of the keys, the display will turn on again.

OK

M. 0 SET



3.1.1) Start-up operation of the control panel
At the start-up, SENTOX IDI control panel will enter a warm-up phase during which the
indication PCM616 is shown on the display and all LED's turn off exception made for FAULT
and POWER indications. Once the warm-up phase is over and the start-up procedure is correct,
the first detector status will be displayed.

Should the buzzer sound after the start up, mute it by pressing ACK and check the cause by
controlling which LED on the front panel is ON among Fault, Alarm1, Alarm2 or Alarm3. On
the display it will appear either the wording FLT (Fault) or L1, L2 or L3 according to the alarm
levels. At this point, after verifying that the system is either on Fault or Alarm condition, operate
as follows:
In case of system in Fault
It will be sufficient to enter the Unset (UNS) status by keeping SET pushed for 3 seconds then
push ACK. A Fault status may either be caused by one or more gas detectors in Fault or any
anomaly in the RS485 communication between the control panel and the detectors.
In case of system in Alarm:
Press ACK key to mute the audible Alarm. To Reset and then Unset the system, it is absolutely
necessary to eliminate the Alarm status first. Once the Alarm condition has been restored press
the RST key to reset the system.


3.1.2) SYSTEM SET
System Set is the normal operation mode of the control panel. The gas concentration being
detected is shown on the display and the following messages are reported:
status (OK or FT fault), L1 (Caution or alarm 1), L2 (Warning or alarm 2), L3 (Alarm or alarm
3) along with the SET or UNSET system condition. Keep the ACK key pressed for two seconds
to allow the display scroll to the other channels and display their status. When the unit receives
an alarm condition the corresponding output relay activates.

SENTOX IDI is provided with 5 output relays with the functions below listed
RL1 (threshold 1)
RL2 (threshold 2)
RL3 (threshold 3)
RL4 (fault)
RL5 (watch–dog).

RL1 activates when the first programmed alarm threshold is attained, RL2 when the second one
is reached, RL3 when the third one is reached.
RL4 activates when a Fault is present (one or more detectors on fault or the RS485
communication bus failure) and RL5 deactivates in case the microprocessor controlling the
board should lockout during normal operation (during normal operation RL5 is always active).
All the relays provide free changeover contacts.

3.1.3) SYSTEM UNSET
To Unset the system (UNS) keep the SET key pushed for 3 seconds and then press ACK. In
this condition the control panel is monitoring the detectors but when the unit reports an Alarm or
a Fault condition the relay output are not activated.
To move back to the SET status, press the SET key for 3 second and then ACK.

3.1.4) ALARM STATUS

Outputs
When a programmed alarm threshold is attained, the control unit provides a visual/acoustic
signalling by activating the buzzer along with the LED and the relay corresponding to that alarm
status.
The ACK key allows muting the audible alarm, thus deactivating the buzzer.
Any time an alarm threshold is exceeded, the buzzer activates and needs muting.
Soon after muting, the ACK key recovers its function of channel scrolling, by keeping it pressed
for about two seconds.
When the alarm condition has been recovered and no further gas presence is being detected,
both alarms and the visual indications of the maximum alarm threshold reached can be reset. In
order to activate this procedure press the RST key.
During the alarm condition, the display shows the concentration attained in real time. At the
same time, the wording status OK changes progressively into L1 or L2 or L3 to show the
detector status, contrary to the visual indications that record the maximum level reached.



3.1.5) Event Log
The unit event log records date, time and type of alarm or fault. To enter the menu proceed as
detailed in the flowchart:

4) PROGRAMMING MENU
It is necessary to program the system after the first power up and each time a system
component is added or removed. It is possible to locally program the system using the keypad
on the front panel or better using a Personal Computer and the dedicated configuration
software.

4.1) Programming by the control panel keypad and display
It is possible to enter the programming mode from the Unset (UNS) mode only, following the
flowchart detailed in the next page.:



FI Lan Engl Lan: Select language Italian or English
CH01.02 Pass1 1 Pass1 (password 1): 0-9999
FLT Pass2 0 Pass2 (password 2): 0-9999
---0 Adr 1
Dt gg.mm.yy
Adr. (Address): 0-255
Dt. (Date): dd.mm.yy
%LEL
M. O UNS Tm 24 Tm (time): 12 / 24h
Press SET to scroll from one parameter to the
SET (3 SEC.) SET other and ACK or RST to modify

Hour 18 Hour
Min 10 Min (Minutes)
Day 07 Day
SET ? Mon 01 Mon (month)
Year 08 Year
W. ON 02 W. ON (warm-up time) From 0 to 3 minutes
RST SET other and ACK or RST to modify
PRF01 is the first out of the 32 profiles that can be
PRF 01 % LEL set for each channel (CH1 to CH32). For each
FS 100 UP one of the Profiles, it is possible to select the
measuring range (%LEL, ppm, % Vol, O2), the
Th1 10 BOFF
SETUP ? Th2 20
three alarm thresholds and the hysteresis (Hys).
Signal can be of increasing (UP) or decreasing
Th3 30 (DOWN) type. The audible alarm associated to
Hys 3 the first threshold can be activated (BON) or
deactivated (BOFF).
ACK RST other and ACK or RST to modify
CH01: Input channel No. 1
CH01
PRFxx: profile to associate to the respective
PRF 01 SET
channel (from 01 to 32 or SPARE)
PASS 0 Wt1 100
SET: channel status SET or UNSET
Wt2 100
Wt1, Wt2 e Wt3: (not to be used) always to
Wt3 100
be at 100.
ACK ACK

CH02
PRF 01 SET
Repeat for the other Channels (from 2 to 32
PASS 1 Wt1 100
the same routine carried for Channel 1
Wt2 100
Wt3 100

SET RST

OTh1 OTh1: threshold 1 programming
MEMO MEMO: relay latched until reset, REFLEX; relay
unlatched, PULSE (relay pulsed).
WAIT REMOTE DL ON 6s DL ON: activation delay (0-720 sec.)
T OFF: deactivation delay (0-720 sec.)
HIGH HIGH: relay energized, LOW: relay de-energized..

SET ACK
Repeat the same
routine to program the RST and ACK to exit the programming
OTh2, OTh3 and OFLT mode.
outputs


Notes on programming menu:
1. The wording BON/BOFF indicates the buzzer setting/un-setting for the first alarm threshold
2. Output HIGH/LOW mode states for the relay being in latched or unlatched mode (coil always
energised / coil always de-energised)
3. Wt, Wt2; Wt3 are not used parameters. Setting are always to be left at 100
4. In measurement units menu it is possible to configure %LEL, %vol, ppm, %O2
5. For PRF configuration (profile) for Oxygen depletion, Th1 has to be higher than Th2 and
this latter has to be higher than Th3. E.g.:
-Th1 19
-Th2 18
-Th3 17
6. While setting OTh1, OTh2, OTh3 OFLT output options, it is possible to select three different
operating modes for the relays:
Reflex (Stable) follows the course of the alarm; alarm activated, output activated
after a possible activation delay; alarm disabled, output low after a
possible activation delay.
Pulse (Pulsed) produces a pulsed output with a time dependent on the moment
the alarm arrives and after a possible activation delay.
Memo (Latched) as per the Reflex output, but becomes disabled only after the
system has been reset.
The above three operating modes allow configure activation and deactivation timers RI ON and
RI OFF.

4.2) Programming by PC
The SENTOX IDI control panel is fully programmable by a personal computer with a dedicated
configuration software (optional). The “PCM 602 configuration” software has been designed
to make the control panel programming simpler and faster. The programming of the control
panel by the keypad is laborious in that the control panel has various functions.



5) PCM 602 CONFIGURATION SOFTWARE (OPTIONAL)
The “PCM 602 configuration” software has been designed to make the control panel
programming simpler and faster. The programming the control panel from the keypad is
laborious in that the control panel has various functions and numerous zones. The programming
necessary to make the system operative is described in the following pages.
The “PCM 602 configuration” software has been designed to work in both Windows
95/98/2000/XP environments, and as such the user interface is similar to other Windows
software

5.1) Installation of the software
Switch on the Personal Computer and wait for the Windows to be running. Insert the “PCM 602
configuration” CD-Rom into the computer’s drive, start “File Manager” and run the executable
file UP.EXE from the CD-Rom. Follow the instructions which appear in the monitor screen until
the software installation is finished.

5.2) Wiring and connections
In order to connect the SENTOX IDI control panel with a Personal Computer, it is
essential to use an RS232/RS485 (or USB) interface. The next figure shows the electrical
connections.

SENTOX “IDI” PC
circuit Rs485 USB or
layout Rs232 interface
Rs48 5 serial l ine fo r the PC
PC Rs485 seria l line

+
-
B
8
A NO
Cn3

NO

-
B
A 5 00 mA
NO
1 + F U SE
NC
Cn2

C

NO
NC
C
NO
NC
C




5.3) Starting the program
From the Programs menu select the “Pcm602EV V. 2.01” group and then select “Pcm602EV
V. 2.01”

The following window will appear:

The programming software window offers the following menus:
File
Action
Test
5.4) Parameters pre-setting
By choosing “File” and clicking on the submenu “Parameters” the window below appears where
it is possible to select the language used by the program, the password for the connection to
the control panel (for the Up-load and the Down-load), the serial communication port for the
PC, and the path for saving the configuration files.



5.5) Creating a new configuration file
Select New from the File menu and, between the three options Analogic, ISA and IDI, chose IDI
that is the right one for the SENTOX IDI control unit. The window below appears

About the menu:
General: is for setting the general options of the SENTOX IDI control panel. See the par. 5.5.1.
Profiles: this option specifies up to 32 operation channel functions to be customized to the
user’s requirements. e.g. the % LEL monitoring, the alarm levels and so on. See the par. 5.5.2
Channels: indicates the operational status that one wishes to give to the channel in question.
See the par. 5.5.3.
Outputs: programming the output parameters implies defining how the outputs, that have been
programmed in the various input channels, will operate. See the Par. 5.5.4.

5.5.1) General


Model: SENTOX IDI that it is the name of the control panel
Start up Delay: it is the Warm Up time of the control panel, after the power up (0-999 minutes).
Suggested 2 minutes.
Serial number: is the serial number of the control panel. It will appear after the first data Up-
load or Down-load from the control panel.
Test date: factory test date of the control panel. It will appear after the first data Up-load or
Down-load from the control panel.
Language: is the language of the texts on the control panel display
Date format: the date format: dd/mm/yy or mm/dd/yy or yy/mm/dd.
Time format: 24 h or Am/Pm
Control panel address: is the address of the control panel (fixed to 1 for SENTOX IDI)
Firmware version: firmware version of the control panel. It will appear after the first data Up-
load or Down-load from the control panel.

5.5.2) Profiles

up to 32 Profiles are available for programming.
The “Profile” specifies all settable parameters for each gas that has to be detected and the
detection tasks required, e.g. measure unit, full scale range, the alarm levels etc.
Measure Unit: can be % LEL (Lower Explosive Limit) for flammable gas detectors, ppm (Part
Per Million) for Toxic gas detectors, % Vol. for CO2 and % O2 for Oxygen detectors.
Signal direction: Down for Oxygen detectors or Up for every other kind of gas detector.
Full Scale: is the measuring range of each gas detector. Usually this corresponds to 100 for
flammable gas detectors but can be different from type to type for Toxic gas detectors. (it is
related to the gas detector to be connected to the SENTOX IDI).
Threshold 1: the first Alarm level of this Profile
Threshold 2: the second Alarm level of this Profile
Threshold 3: the third Alarm level of this Profile


Hysteresis: This value indicates how variations in the signal will be ignored when in close
proximity to the alarm threshold. The value is expressed as for the measure unit (% or ppm).
Copy Profile: This command allows copying the settings for one Profile to other Profiles.

In the Channel menu (see paragraph 5.5.3.) one out of the programmed Profiles will have to be
associated to each detector being connected.

Below some Profiles, as examples.

Flammable gas detector Carbon Monoxide (CO) gas detector
(Methane, LPG, Hydrogen etc.) (range 300 ppm)

Carbon Dioxide (CO2) gas detector Oxygen depletion gas detector
(range 0-5% Vol.) (range 0-25% O2)



5.5.3) Channels

Setting the Channel parameters implies programming the appropriate Profile for each
detector and define the Channel status (Set or Unset).

Select the channel (detector) from 1 to 32

Associated type: choose the right Profile between those previously programmed in the Profiles
menu. If the Channel is not used (detector not connected) the option Spare must be chosen.
Channel status: Choose SET for a normal channel (detector) operation. If SET, the input
channel is monitored and, in the event of an alarm, all the associated outputs are activated.
Choose UNSET for a channel (detector) in test mode. If UNSET, the input channel is monitored
but in the event of an alarm the associated outputs will not activate.
Weight Threshold 1: not used (forced to 100)

Copy Channel: This command allows the settings of a particular channel to be copied to other
channels.



5.5.4) Outputs
Programming the output parameters implies defining how the outputs that are part of the system
will operate.

select the output to be programmed. All the outputs of the system are
listed below:
Threshold 1: relay of the control panel for the Alarm level 1. See par. 2.4
Fault: relay of the control panel for the Fault condition. See par. 2.4
External Output 1 to 16 (optional): Open collector outputs of the remote 16-output module
address 0 (if connected). See par. 2.3
External Output 17 to 32 (optional): Open collector Outputs of the remote 16-output module
address 1 (if connected). See par. 2.3



4-relay output setup.

Output type: the Output can have three different operation modes:
Reflex Stable follows the course of the alarm; alarm activated: output activated
after a pre-set activation delay; alarm restored: output low after a
pre-set de-activation delay.
Pulse Pulsed produces a pulsed output with a time dependent on the moment
the alarm arrives and after a possible activation delay.
Memo Latched as per the stable output, but becomes disabled only after the
Activation delay: Can delay from 1 to 720 seconds the activation of the output
Deactivation delay (just for the Reflex mode): Can delay from 1 to 999 seconds the
deactivation for the output after the alarm event is restored.
Pulse duration: (just for the Pulse mode) Can set the duration time of an energized output.
Output level: It defines if the relay output it is normally activated (high) or normally deactivated
(low).



Setup the Open Collector outputs on the ST.G/OUT16 modules.

When the remote output modules ST.G/OUT16 are connected on the RS485 loop, it is possible
to program the external outputs from 1 to 16 (if the module is addressed as 0) and from 17 to 32
(if the module is addressed as 1). See paragraph 2.3

choose the external outputs from 1 to 16 (first output module addressed
0) or from 17 to 32 (second output module addressed 1).
Output type: the Output can have three different operation modes:
Reflex Stable follows the course of the alarm; alarm activated: output activated
after a pre-set activation delay; alarm restored: output low after a
pre-set de-activation delay.
Memo Latched as per the stable output, but becomes disabled only after the
Not used The output is not used. If the output is not existing (because the
output module is non connected on the control panel loop) the
option must be Not used.
Output level: It defines if the relay output it is normally energized (high) or normally not
energized (low).
Type (Profile) and Threshold: the Type (Profile) is to be selected to create the association
between the output and the Profile (from Prf. 1 to Prf. 32). The relationship between the output
and the channel (detector) is done by setting the same Profile.


First example:
-) should channel (detector) 4 be set to Profile 1
-) External output 3 set to Profile n. 1
-) and the Threshold set to Threshold 3
means that whenever Channel 4 (detector 4) reaches the 3rd alarm Threshold, the External output No. 3
will activate.
The rule to bear in mind is the detector (channel) and the output to be activated must be configured with
the same Profile.

Second example:
-) Should 32 detectors be connected, each one with an individual output associated to the 2nd alarm
threshold
To create 32 External outputs associated to the 2nd alarm Threshold of each of the 32 gas detectors
(channels), it is necessary to create 32 Profiles (menu Profiles) and associate each one of the 32
channels (detectors) to one of the 32 Profiles (menu Channels).
The last operation is to set each one of the 32 External outputs (menu Outputs) to each one of the 32
Profiles. In this case, Threshold 2 will be set.
Note: the above configuration requires that two remote output modules ST.G/OUT16 are loop connected.

5.6) Send Configuration (Download)
Once the parameter programming has been completed, it is possible to download (Send) the
set-up to the control panel. It is advisable to save the programming file before downloading data
to the SENTOX IDI control panel using the Save option from the File menu. By using the
Parameters option in the File menu, check that the configuration of the port to which the control
panel has been connected is correct.
Select ”Send” from the “Action” menu, enter the password (default 000001) and enter the
Control panel address “1” but do not give the OK command at this point.

In the control panel, enter the Programming mode (please refer to the control panel
programming part of this manual)
Click Ok to start downloading. The downloading bar will be immediately displayed. On the
control panel display the message “Remote prog.” will appear and during this phase it is neither
possible to carry out any other operation nor monitor the inputs.
Once the data download is over, disconnect the cable between the control panel and the PC.
The control panel is still in Programming mode and it is necessary to exit (see par. 4.1)

5.7) Receive configuration (Upload)
Whenever the data stored in the panel need updating or revising, connect the panel to the PC
and upload the old parameters.


In the control panel, enter the Programming mode (please refer to the control panel
programming part of this manual). Select the Receive option in the Action menu of the
configuration software.

Enter the control panel address “1” then click OK. The downloading bar will be immediately
displayed. During this time it is neither possible to carry out any other operation on the control
panel nor monitor the inputs.
Once the data up-load has ended, disconnect the cable between the control panel and the PC.
The control panel is still in Programming mode and it is necessary to exit (see par. 4.1)
Data can now be modified on the PC and once ready for downloading, please refer to
paragraph 5.6).

5.8) TEST menu
The “TEST” menu offers the following options:

State
Event log

5.8.1) State

This option gives users the ability to view graphically the state of the control panel and of all
the 32 channels.
To launch this option click on State in the TEST drop down menu. To Log On to the panel,
the user must enter the control panel address “1” as prompted by the window displayed
below:

Then press OK. The uploading bar will be immediately displayed.

Once the State function has been accessed, the user is presented with a graphical
representation of the SENTOX IDI control panel currently on-line. The window gives a
general overview of the SENTOX IDI system. All the 32 channels are displayed with details.
See below.


Alarm level 3 Fault status

Alarm level 2 Communication Fault output module “0”

Alarm level 1 Communication Fault output module “1”

Indication of the
system status
SET or UN-SET
Channel
number

Channel
Profile

Channel
status
SET or UNSET
or SPARE

Gas concentration
measured.
In real time

5.8.2) Event log
This option displays the system event log. The log records all events that occurred in the
system. To launch this option click on Event log in the TEST drop down menu. To Log On to
the panel, the user must enter the control panel address “1” as prompted by the window
displayed below:

Then click OK. The uploading bar will be immediately displayed.

On entering this option, the most recent events displayed in the following format:



By the Export command You can save the event list in the computer as a .csv file. A
.csv file can be opened by other programs as Microsoft Excel for further elaboration.
By the Print command all the events can be printed.
By the Update command the event list is up-dated with the last events.



The above information do not make the manufacturer liable, and
the manufacturer reserves the right to make any changes that it
retains will be useful to improving the product.

For further information contact:
Tel: +39 02 935.48.155
Sensitron S.r.l. Fax: +39 02 935.48.089
e-mail: sales@sensitron.it


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