Smart P Sensitron manual

10. MT3481E.doc rev. 2 20/06/2018 Pagina 10 di 14 Adjustments are required whenever either Fault o r unjustified Alarms due to environmental conditions occur (Zero adjustment) or detectors need modifying their response to gas (Span adjustment). Span adjustment requires a calibrated gas cylinder, either filled with the same gas the detector has been cali brated for or a reference gas advised by the manufacturer For the Zero adjustment, gas detectors are to be in fresh air (without any gas or interfering compounds) and powered on since 8 hours at least. Once the routine is over a test with gas is to be mad e to verify the right working condition. KEYPAD Fig. 2.5 a) Connection of the calibration keypad

2. Technical Manual SMART P MT3481E.doc rev. 2 20/06/2018 Pagina 2 di 14 Warning THIS MANUAL MUST BE CAREFULLY READ BY A LL 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. OTHERW ISE, 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 t o use or repair.

1. MT3481E.doc rev. 2 20/06/2018 Pagina 1 di 14 USER MANUAL FOR SMART “P” 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

6. MT3481E.doc rev. 2 20/06/2018 Pagina 6 di 14 2) INSTALLATION At the mounting and installation phase be sure all safety precautions have been considered. Always consider how important it is the correct positioning of gas detectors to get the optimum response. Be careful never to install gas detectors close to air intakes or fans causing strong air currents. Be sure the detectors are attached to a firm base to prev ent vibration that can damage them, producing unreliable results. Although the electronics comply with the electromagnetic compatibility rules, it is advised to keep the detectors at a distance from any radio frequency senders (such as radio links or simil ar). Please be also sure that detectors are placed in a convenient location for future maintenance and calibration requirements. We recommend you mount the Smart P detector at nose level (about 150 cm off the ground) since this is the position suited to de tect CO and NO2. The Petrol V apour detector should, on the other hand, be installed about 30 cm off the ground . the CO+ P ETROL V APOUR detector comes with an ext ension kit to mount the Petrol V apour sensor 30 cm off the ground. Also remember that correct det ector positioning is essential to ensure prompt and accurate detection. The gas detector is always to be mounted with the sensing element placed downward. For no reasons at all the enclosure can be drilled. Wall mount the detectors by employing the exis ting holes 1 5 0 m m front back

12. MT3481E.doc rev. 2 20/06/2018 Pagina 12 di 14 Both gaskets and screw threads inside the cap allow an optimum tightness between the sensing head and the cap. The analysis chamber inside the calibration c ap has been designed and realized to obtain a test method identical to that adopted in our laboratory for the initial factory calibration. The valve complete with flow meter is to be mounted on the gas can to allow a gas outlet at a controlled velocity to obtain accurate data to verify the sensing element status. rES Reset Reset of Fault status VER Version Detector firmware version ADR Address Address of detector for communicating to RS485 bus. Ex. 004

14. MT3481E.doc rev. 2 20/06/2018 Pagina 14 di 14 The information in this document are not binding for the manufacturer and the manufacturer reserves the right to make any changes deemed helpful in improving the product. For further informations, please contact : Sensitron S.r. l. Tel: +39 02 935.48.155 Fax: +39 02 935.48.089 e - mail: sales@sensitron.it

8. MT3481E.doc rev. 2 20/06/2018 Pagina 8 di 14 2.2) Electric wiring The connection of the detectors to RS485 bus lines should be performed by using a 4 - wire cable, 1 pair for the RS485 bus and 1 for the power supply. Wiring between the detectors and the control panel should be made by using connection cable 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 (da ta transmission cable in EIA RS485). Using this wiring, the total length of the line should not exceed m 1000. Detectors and output modules are to be wired in daisy chain mode. We recommend avoiding star or tree mode connection as interference immunity wo uld be reduced. 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 we recommend to use a 2 - wire cable with suitable sectio n according to the distance and number of detectors. Once the installation has been completed, verify that each detector reaches at least 12 Vdc. Each Smart P detector connected on the unit line must have a univocal address. Use the specific STS/CKD PK ke ypad to set the detector address. See the specific paragraph below in the manual. + - A B S 2 S 1 1 6 A B + - Detector + - A B S 2 S 1 1 6 A B + - Detector + - A B S 2 S 1 1 6 A B + - Detector Al rilevatore successivo (*) to the next detector (*) Dalla centrale From the control panel note: if the detector (or the module) is the last of the line: close the 120 ohm resistor jumper nota: se il rilevatore (o il modulo uscite) è l’ultimo sulla linea: chiudere il jumper della resistenza da 120 ohm + - A B ST.G/OUT16 module

11. MT3481E.doc rev. 2 20/06/2018 Pagina 11 di 14 Calibration keypad menu 0,0 ZERO SPAN VER ADR ENT ENT ENT ENT ENT ESC 0,0 0,0 0,12 001 rES ENT WAIT Fig. 2.5 b) Calibration keypad main menu ZERO When the detector SMART P is turned On for the first time, or when a new kit sensor is mounted into the instrument, the AUTO ZERO calibration is recommended. This action has to be done under the following two conditions: Gas detectors are to be in fresh air (without any gas or interfering compounds) and powered on since 8 hours at least. Where there is no such certainty of being in clean air (without gas), calibration Auto zero is necessary to use a special mixture of synthetic air (79% nitrogen and 20.9% oxygen). Once the routine is over a test with gas is to be made to verify the right working condition. Perform the task of Auto Zero Smart P detector simply by pressing ENT from Auto Zero menu and follow the steps in the block diagram. SPAN The Span allows the instrument calibration and is to be executed if when tested in gas occurred that the instrument is not properly calibrated. To run the Span is essential the use of a mixture (cylinder) gas sample with the Target Gases (gas that the tool should detect) or with a reference gas to which the sensor is sensitive. To apply the mixture of gases sample at Smart P, Sensitron makes available a dedicated calibration kit. The calibration KIT, supplied with a carrying case, comprises the necessary instrumentation to verify in situ the response of Sensitron's gas detectors The calibration cap can be fitted on all of Sensitron sensing heads by employing, when necessary, the endowed adaptors.

13. MT3481E.doc rev. 2 20/06/2018 Pagina 13 di 14 0,0 ENT SPAN ENT VER ENT ADR ZERO ENT ZGL 000,0 0,0 DONE SGL 200,0 FACT YES ZGL Concentrazione gas per lo Zero: lasciare a “000,0” per VB, CO, NO ed No2 ZGL Zero Gas Level: let to “000,0” for VB, CO, NO and No2 ENT ENT ENT Indicazione del valore attuale letto dal rilevatore. Per azzerare lo strumento confermare con ENT Real time value indication. To make the Zero adjustment, confirm by ENT Taratura di Zero eseguita Zero adjustement done SGL: Concentrazione gas per la taratura della sensibilità. Inserire il valore della concentrazione gas della bombola usata (es. 200 ppm CO) SGL Span Gas Level: Gas Level for the detector sensivity adjustement. Enter the gas concentration of the gas bottle used FACT: fattore relativo nel caso venga usato un gas di riferimento per la taratura della sensibilità. Altrimenti selezionare YES FACT: Coefficent Factor, to be used in case a difference reference gas is used, for the sensivity adjustement. Otherwise select and confirm YES. 0,0 195,0 A questo punto far fluire allo strumento il gas di taratura, l’indicazione aumenterà fino a fermarsi al valore massimo (in circa 30 secondi). Premere ENT per confermare. L’indicazione visualizzata sarà ora quella della concentrazione del gas di taratura. 200,0 DONE 0.0.12 004 rES ENT WAIT Fig. 2.5 c) Handheld keypad operation flow cha rt

9. MT3481E.doc rev. 2 20/06/2018 Pagina 9 di 14 2.3) Detector power ON When the detector is powered on, the green LED DL1 on the motherboard starts blinking at slow intermittence. After nearly two minutes, the red LED f lash rate is equivalent to the detector working status (see table below). Once the warm - up phase is over, the detector can work correctly, although the optimal performances will be achieved after two hours. 2.4) Testing and Use Detectors are factory calibrate d for the specific gas required by the customers. Future adjustment of the preset calibration can be carried out by employing the calibration keypad. Testing should be carried out by using a gas mixture in the appropriate range, along with our calibration kit. The green DL1 LED on the electronic board flashes to indicate detector status as illustrated in the table below. LED DL1 (green) shows the detector's operative status (mS= milliseconds) Warm - Up Flashing 750 mS ON; 250 mS OFF Fault low Lit fixed A llarm 1 Flashing 250 mS ON; 1750 mS OFF Allarm 2 Flashing 250 mS ON; 250 mS OFF; 250 mS ON; 1250 mS OFF Allarm 3 Flashing 250 mS ON; 250 mS OFF; 250 mS ON; 250 mS OFF 250 mS ON; 750 mS OFF Fault high Flashing 250 mS ON; 250 mS OFF Normal status Flashin g 1 sec. ON; 1 sec. OFF 2.5) Handheld calibration keypad ST.S/CKD PK Smart P gas detectors offer a field adjustment for the Zero, Span (response to gas) and the serial address (for the RS485 bus ). By operating with the handheld calibration keypad, pressing E NTER, ESC, Arrow UP and Arrow DOWN, the Zero, Span and serial Address shall be accomplished. The keypad can be connected when the detector is powered ON and operating. Before opening the detector enclosure, be sure all safety precautions have been conside red. Insert the female connector of the keypad at the edge of the flat cable into the male connector on the Smart P main board. Once connected, the keypad will display the gas concentration being measured.

3. Technical Manual SMART P MT3481E.doc rev. 2 20/06/2018 Pagina 3 di 14 INDEX 1) DESCRIPTION ................................ ................................ ................................ ................................ ...... 4 1.1) T ECHNICAL SPECIFICATI ONS ................................ ................................ ................................ .............. 5 2) INSTALLATION ................................ ................................ ................................ ................................ .... 6 2.1) C IRCUIT LAYOUT ................................ ................................ ................................ ............................... 7 2.2) E LECTRIC WIRING ................................ ................................ ................................ ............................. 8 2.3) D ETECTOR POWER ON ................................ ................................ ................................ ..................... 9 2.4) T ESTING AND U SE ................................ ................................ ................................ ............................ 9 2.5) H ANDHELD CALIBRATION KEYPAD ST.S/CKD PK ................................ ................................ ............... 9

4. MT3481E.doc rev. 2 20/06/2018 Pagina 4 di 14 1) DESCRIPTION SMART P gas detectors come in the following versions based on the type of gas to be detected: CO, range 0 - 300 ppm, 3 pin industrial cell NO2, range 0 - 30 ppm, 3 pin industrial cell Detectors with dual sensor were manufactured to optimise installation costs, coupled with the CO - NO2 and CO - P ETROL V APOUR sensor in a single case. SMART P use high performance sensor cells and test all functions including a self test for CO ce ll reliability. SMART P detectors are set for 4 - wire connections: 2 for power and 2 for data communications via RS485 serial to the MULTISCAN++PK unit. SMART P provide fast and safe installation as well as easy maintenance and field calibration via the ST S/CKD - PK calibration keypad. Detectors run on 12 - 24 Vdc power and sold in IP55 metallic cases. SMART P - 1 Designed to fulfil the new European Standard for gas detection in car parks, the SMART P - 1 gas detectors provide a serial RS485. The SMART P - 1 employ electrochemical cells for the detection of CO or NO2. To meet with the standard in full, these detectors are to be connected to MULTISCAN ++PARK gas control panels . SMART P - 1 detectors for Carbon Monoxide and NO2 CODE DESCRIPTIO N CAT. € S2398CO CO detector for car parks RS485 serial outputs. Range 0 - 300 ppm. B 240,00 S2399ND NO2 detector for car parks, RS485 serial outputs. Range 0 - 30 ppm. B 320,00 SMART P - 2 Designed to fulfil the new European Standard for gas detection in car parks, the SMART P - 2 gas detectors offer the simultaneous detection of CO and NO2 or Petrol vapours integrated in the same detector. The SMART P - 2 provide a serial RS485. To meet with the standard in full, these detectors are to be connected to MULTI SCAN ++PARK gas control panels.

5. MT3481E.doc rev. 2 20/06/2018 Pagina 5 di 14 SMART P - 2 detector for Carbon Monoxide and Nitrogen Dioxide/Petrol Vapours CODE DESCRIPTION CAT. € S2400CO - ND CARBON MONOXIDE & NITROGEN DIOXIDE detector for car parks, RS485 serial output. Range 0 - 300 ppm CO and 0 - 30 ppm NO2. B 400,00 S2400CO - VB CARBON MONOXIDE & PETROL VAPOURS detector for car parks, RS485 serial output. Range 0 - 300 ppm CO and 0 - 1 00%LEL Petrol Vapours. B 420,00 CALIBRATION TOOLS for SMART P CODE DESCRIPTION CAT. € STS/CKD - PK Handheld calibration keypad to be connected to the detector to adjust the Zero, Span and 4 - 20 mA values. A 2 0 0,00 1.1) T echnical specification s Typical use To be used with MULTISCAN++PK 256/128/64/32 type units to monitor toxic gas in car parks and garages Detectable gas Carbon Monoxide 0 - 300 ppm. Nitric dioxide 0 - 30 ppm Petrol V apours 0 - 100% LEL Sensor used Electrochemical cell for CO and NO2. Catalytic for P etrol Vapour . Power 12 - 24 Vdc ( - 20% +15%) Proportional output RS485 seri al Absorption at 12 - 24Vdc CO max 70mA NO2 max 70mA CO+NO2 max 80mA CO+ P ETROL V APOUR max 110 mA Repeatability 5% FS Storage temp. - 25 / + 60 °C Working temperature - 20 / + 60 °C Relative humidity 20 - 90 % non condensed RH/40°C IP protection level IP55 Weight 600 gr. Dimensions L. 100, H. 180, D. 65 mm Estimated sensor life 4 years for CO and P ETROL V APOUR sensors 3 years for NO2 sensor

7. MT3481E.doc rev. 2 20/06/2018 Pagina 7 di 14 2.1) C ircuit layout 1 2 3 4 + - A B C o n n e c t i o n s t e r m i n a l b l o c k M o r s e t t i e r a c o l l e g a m e n t o S c h e d a e l e t t r o n i c a r i l e v a t o r e D e t e c t o r e l e c t r o n i c b o a r d S e n s o r H e a d 2 c o n n e c t i o n ( E . C . E l e c t r . C e l l o r C a t s e n s o r ) T e s t a s e n s o r e 2 ( E . C . C e l l a E l e t t r o c h i m i c a o s e n s o r e c a t a l i t i c o ) J p 1 0 R s 4 8 5 E n d o f L i n e 1 2 0 O h m r e s i s t o r C l o s e d : r e s i s t o r O p e n : n o r e s i s t o r J p 1 0 r e s i s t e n z a f i n e l i n e a R s 4 8 5 ( 1 2 0 O h m ) C l o s e d : r e s i s t e n z a i n s . O p e n : n o r e s i s t e n z a S e n s o r H e a d 1 c o n n e c t i o n ( E . C . E l e c t r . C e l l ) T e s t a s e n s o r e 1 ( E . C . C e l l a E l e t t r o c h i m i c a ) J p 8 s e l e z i o n e b a u d r a t e R s 4 8 5 c o m m A P E R T O : 9 6 0 0 B p s / : 1 1 5 0 0 0 B p s J p 8 R s 4 8 5 b a u d r a t e s e l e c t i o n O P E N : 9 6 0 0 B p s / C L O S E D : 1 1 5 0 0 0 B p s J p 7 c o n n e c t i o n o f h a n d h e l d c a l i b r a t i o n k e y p a d J p 7 c o l l e g a m e n t o t a s t i e r a c a l i b r a z i o n e D l 2 L e d G r e e n : d e t e c t o r a c t i v i t y . R e p e a t t h e v a r i o u s d e t e c t o r s t a t u s L e d V e r d e D l 1 : a t t i v i t à d i s p o s i t i v o . R i p e t e i d i v e r s i s t a t i d e l r i l e v a t o r e D l 3 L e d R e d : R s 4 8 5 m o n i t o r L i t i n c o m m u n i c a t i o n L e d R o s s o D l 3 : m o n i t o r R s 4 8 5 . A c c e s s o i n c o m u n i c a z i o n e D l 2 L e d R e d : R s 4 8 5 W a t c h d o g m o n i t o r . S e r i o u s p r o b l e m L e d O N L e d R o s s o D l 2 : m o n i t o r W a t c h d o g L e d O N g u a s t o d i s p o s i t i v o C H I U S O