User Manual SENSOTOX2
Contents
1. 2 Message Frame Communication Procedure Sensotox 2 only support function code 0x03 read holding registers which only supports the Get Reading Value from the detector Sensotran s l 31 12 2014 Page 30 SENSOTOX 2 User Manual Requesting Message Device Function Register Register Quantity Quantity CRC CRC Address Address Address of of Low High High Byte Low Byte Registers Registers Byte Byte High Byte Low Byte ciems o o faz foo p A Answering Message Device Function Byte Register Value CRC CRC Address Code Count Low High Byte Byte Client ID 03 04 Reading Reading Reading Reading CRC CRC byte 4 byte 3 byte 2 byte 1 Note Detector data length is 4 bytes Example Request 01 03 00 02 00 02 CRC CRC Answer 01 03 04 00 00 00 3A 7A 20 Note The maximum distance should be less than 1 Km when using a 1 5 mm cable Sensotran s l 31 12 2014 Page 31 SENSOTOX 2 User Manual sensotran s l Av Remolar 31 BARCELONA SPAIN Phone 34 93 478 5842 Fax 34 93 478 5592 www sensotran com e mail sensotran sensotran com Sensotran s l 31 12 2014 Page 322. fi j SENSOTOX 2 User Manual READ THE MANUAL BEFORE USING This manual should be carefully read by those who have or will have responsibility for use maintenance or repair of the product This product will perform properly only if used maintained and repaired in accordance with the manufacturer s instructions CAUTION Disconnect the power before removing the sensor Remove the cover and the sensor from the unit only if the work area is known not to be dangerous WARNING Calibration of all new unit should be checked by exposing the sensors to a known gas concentration before putting the instrument into service For maximum safety the accuracy of reading of the Sensotox2 should be checked every three months SENSOTOX 2 User Manual Contents E INTRODDVETLOM Esu vs vas mammu Assman ee 2 GL TECHNICAL SFE IFICATION Sirio 4 Sensot x2 EC Specials 4 Sensotox2 IR specifications ia A e 5 SENSOtOX 2 LIE SDecifica NONS 0s D N NNI 6 Senso PID Pedea HON ena S nop nn 7 Zo OPERATION 5 45 sies au Pa ada osea 8 aL PEN SIGAL DESCRIPTION ass maa sa B 9 zz TINS UA RIO TU eran wars tet o N eas ee tere OSO saan men neo di 10 ZZ MAINS PAWN tops 10 2222 HIMNA L a e NCAA av a EEE S S S 11 dd WII PP PP E N J S SNI 11 ZZ TOS MINO Ne UN as carta seus JS 12 AA p ie o A 5 PP A e 13 Ext al Cart CONE CU 6 sa erica ette 13 Mtra ear oi 13 2 3 Display and User Interface oocccccccccccccnncnnnnnnn eee eee e cece EEE rr rr 14
3. 014 Page 11 SENSOTOX 2 User Manual 2 Connect the Sensotox 2 cables via the connection holes The pins correspond to the following table Block 1 RS485A RS485B Block 2 4 20 mA output Power supply Power supply 9 a 36 V Only detectors with a window 2 2 4 Installing the unit 1 Fit the connectors into their respective locations Save an extra length of cable to allow mounting on the wall 2 Screw the sensor into the box and place the 4 pin connector LIE model or 6 pin connector for other sensors 3 On units with a window fit the 16 contact flat cable and separators 4 On units with a window pit the display and relay board using four 4 mm Screws 5 Screw the cover on Sensotran s l 31 12 2014 Page 12 SENSOTOX 2 User Manual 2 2 5 Earthing instructions External earth connection Crimp 4 mm2 cable into a 4 mm connector Tierra externa Internal earth Use the same terminal as for the external earth connection iii yo Q Sensotran s l 31 12 2014 Page 13 SENSOTOX 2 User Manual 2 3 Display and User Interface 2 3 1 User interface All Sensotox 2 devices with a window are equipped with four status LEDs a four digit LCD display and three magnetic keys MODE and OK FAULT LOW HIGH 2 3 2 Magnetic key The Sensotox 2 with a window has no external keys but uses the magnet to activate the keys inside the unit Place the magnet over the key to ac
4. Manual How to edit and modify Settings Sta v Ma Increased Value MODE Decreased Value Setting non Setting modified modified Sensotran s l 31 12 2014 Page 27 SENSOTOX 2 User Manual 4 20 mA Analogue Output adjustment vi AAA A MODE O z is l y fCO A E MODE Sensotran s l 31 12 2014 Page 28 SENSOTOX 2 User Manual 3 Troubleshooting Error Description and solution Description Calibration error Solution Make sure there is gas flow circulation and repeat calibration If still fails replace the sensor EGO Description Zero Drift Solution Make sure sensor is in a clean ambient or alternatively use Nitrogen to do zero calibration EGGS Description Sensor Over range ae Solution Call an Authorized Service Center EUG Description Wiring Error eee Solution Verify wiring EGO Description EEPROM Error za u Solution Replace main board Call an Authorized Service Centre Sensotran s l 31 12 2014 Page 29 SENSOTOX 2 User Manual 4 MODBUS RS 485 Retrieving gas concentration data from Sensotox 2 through RS 485 The Sensotox 2 communicates by means of MODBUS RTU All monitors provide 4 byte register value Note Gas concentration is the only value that can be retrieved As example 34 hex 52 decimal 1 Communication Setting Transmission MODE RTU Controller PC or GasVisor Controller Baud Rate 4800 9600 19200 bps Client ID 1 to 32
5. Pel no rr a a jin A 14 zs MoqmetlE a A taa 14 Ad jin is e p PA En eo PP 15 Za tarta UD tne UN san og N R I da 15 2 20 DISpiav Fea dol as D D D NI IE N S 15 2 O AAA CONACS os ar i a a d ng 16 PA e AA O a eo BE nn ej 17 dl Calibfatina tne DINd UA uscar enn ae celia 18 A e g A I nas aces 19 Il Spancalibratiei geta a SS N DP ET piic s 19 IH sC nanging Span Valle usarlos S auei Stone 20 20112 Calbrati d tne display UB s o s o nos ass s ake 20 E Zero BG o ge og din A GM 1 a Lorna 20 les REE ELT i sense gets osa so Deka N I K N a Ga 22 AA e o oo ca NE NE MEN neem 23 TOUDE ROO IN 4 5 2 a Kana sd An 29 da MODBU R O a a 4 as te v n s Mn ee ee eee 30 Sensotran s l 31 12 2014 Page 1 SENSOTOX 2 User Manual 1 INTRODUCTION Sensotox 2 EC uses an electrochemical sensor to detect oxygen and toxic gases It works with voltages from 9 to 36 V dc with an analogue 4 20 mA or digital RS 485 ModBus output Sensotox2 is equipped with flameproof enclosure and this may be blind or have a window with a display for reading the gas concentration status LEDs and magnetic keys for configuration Sensotox 2 IR uses a non dispersive infrared sensor to detect combustible gases carbon dioxide and other gases It works with voltages from 9 to 36 V dc with an analogue 4 20 mA or digital RS 485 ModBus output Sensotox2 is equipped with flameproof enclosure and this may be blind or have a window with a display for re
6. Sensotran s l 31 12 2014 Page 6 SENSOTOX 2 User Manual Sensotox2 PID Specifications size 190 ISO mm om O wams OO Sensor Protionizaton Pe IP 68 Power supply 9 36 V dc max 50 mA at 24 V dc 4 20 MA RS 485 at 4 8 9 6 or 19 2 kB s 7 segments 4 digits and 6 LEDs unit Display with window Magnetic key non intrusive access for calibration and adjustment unit with a User interface window Internal calibration button blind unit Humidity 0 95 RH non condensing 0 9 1 1 Atm 30 V 2 Anormally open One for alarm 1 Relay contacts and one for alarm 2 Consult Sensotran for other possibilities Sensotran s l 31 12 2014 Page 7 SENSOTOX 2 User Manual 2 OPERATION The calibration of all new instruments acquired from Sensotran should be checked by exposing the sensor to a known concentration of gas before putting the instrument into service For maximum safety accuracy should be checked by exposing the sensor to a known concentration of gas over a period of time Calibration must be checked daily during the initial period of use to ensure that there are no components in the atmosphere which might contaminate the sensor Check the calibration using a Known concentration of gas before use Recalibrate if the error is excessive Before shipment Sensotox 2 instruments are calibrated and checked using Span gas However the user should check the operation
7. ading the gas concentration status LEDs and magnetic keys for configuration Sensotox 2 LIE uses a catalytic sensor with high resistance to contaminants for detecting combustible gases LEL It works with voltages from 9 to 36 V dc with an analogue 4 20 mA or digital RS 485 ModBus output Sensotox2 is equipped with flameproof enclosure and this may be blind or have a window with a display for reading the gas Sensotran s l 31 12 2014 Page 2 SENSOTOX 2 User Manual concentration status LEDs and magnetic keys for configuration Sensotox 2 PID uses a sensor to detect volatile organic compounds VOCs It works with voltages from 9 to 36 V dc with an analogue 4 20 mA or digital RS 485 ModBus output Sensotox2 is equipped with flameproof enclosure and this may be blind or have a window with a display for reading the gas concentration status LEDs and magnetic keys for configuration Sensotran s l 31 12 2014 Page 3 SENSOTOX 2 User Manual 1 1 TECHNICAL SPECIFICATIONS Sensotox2 EC specifications Sia 180 mm x 150 TAO O wj OO Sensor Beroder OOO NL 9 36 V dc max 50 mA at 24 V dc 4 20mA RS 485 at 4 8 9 6 or 19 2 kB s segments 4 digits and 6 LEDs unit Displav with window Magnetic kev non intrusive access for calibration and adjustment unit with a User interface window Internal calibration button blind unit Temperature 40 a 60 C Humidity 0 95 RH non conden
8. before first use Once the unit has been installed leave it running for 24 hours and check it with gas Sensotran s l 31 12 2014 Page 8 SENSOTOX 2 User Manual 2 1 PHYSICAL DESCRIPTION The design of Sensotox 2 makes it easy to place and connect at a fixed location to monitor gas 165 Sensotran s l 31 12 2014 Page 9 SENSOTOX 2 User Manual 2 2 Installation ATTENTION 1 At least 457 mm of armoured cable must be used between group A and B zones 2 To prevent ignition in explosive atmospheres the area must be free of flammable gases and the power supply to the detector must be disconnected before opening the cover 3 For European applications the installation must meet the requirements of EN 60079 14 2 2 1 Installing Make 2 holes in the mounting surface 126 mm apart Sensotran s l 31 12 2014 Page 10 SENSOTOX 2 User Manual 2 2 2 Uninstalling Before dismantling make sure that power is disconnected 1 Unscrew the cover by rotating it anti clockwise N OD OF A If the unit has a display remove the four fixing screws and then the ribbon cable connector of the display Disconnect the power connectors and communication relay connectors Disconnect the sensor connector Unscrew the four studs on the display Remove the main board Unscrew the sensor 2 2 3 Wiring Disconnect the two green connectors 12 3 4 5 Sensotran s l 31 12 2
9. ce to Span Calibration Sensotran s l 31 12 2014 Page 21 SENSOTOX 2 User Manual Reading Mode MODE Er g 5PAn y Display Value F V A A l Countdown i fo da l i l l l v I y l i Display Value I l l l l v A Reading Mode II Span calibration 1 Connect the SPAN calibration cylinder to the sensor Sensotox 2 head using the calibration adapter and applying a flow of gas Tip To accede the Span Calibration from reading display press MODE When dErUu appears press MODE again to go to hPdn Sensotran s l 31 12 2014 Page 22 SENSOTOX 2 User Manual 2 Press to start calibration Span LED will lit and Em will be displayed alternatively with a countdown Calibration can be cancelled by pressing any key 3 When countdown will be completed LED and SF ain disappears and calibration data will be saved If the sensor does not have sensitivity enough for being calibrated Fd iL and SF dn messages will be displayed alternatively that can suggest than sensor needs to be replaced 4 To quit the Menu and return to actual reading screen press If not the instrument will return automatically to actual reading screen after a short period 5 Close the gas valve 2 5 Advanced Menu Sensotox2 Advanced Menu let you modify several configuration parameters To enter into Advanced Menu press the sequ
10. ence and MODE Display will show then JM N gt Pressing MODE will move to the next function gt Pressing will enter into the setting and show the actual value gt Pressing will leave the Advanced Menu Sensotran s l 31 12 2014 Page 23 SENSOTOX 2 User Manual Reading Screen A Press and hold 1 second V Press and hold 1 second MODE O Press and hold 1 second TT i Edit l P LU A r Y MODE V e Advanced Menu Next Parameter After 60 seconds without activity detector returns to actual reading screen Sensotran s l 31 12 2014 Page 24 SENSOTOX 2 User Manual Advanced Menu e To modify a setting press MODE until desired o pom o value appears e Press to enter into the setting e Press to increase change the value e Press to decrease change the value e When finished press MODE If the setting has been modified new value will blink e Press or MODE to dismiss modifications and go to next setting e Press to save changes nizza Er aruc will be displayed to confirm changes have been stored Sensotran s l 31 12 2014 Page 25 SENSOTOX 2 User Manual l i LEJ MODE V l i u i ira MODE V Ww ira MODE V Y ila MODE V AA i A A l MODE V ET A a MODE A Edit i TAl MODE v e Reading Sensotran s l 31 12 2014 Page 26 SENSOTOX 2 User
11. n These options change sequentially every two seconds while the button is held down so that when the button is released the option shown by the LED is carried out Calibration LEDs Sensotox 2 blind Sensotran s l 31 12 2014 Page 18 SENSOTOX 2 User Manual I Zero calibration Ensure that there are no flammable gases or gases that might interfere with the sensor reading in the area where the detector is located Suspected that the atmosphere is not clean use a zero gas such as Nitrogen 5 0 Open the cover and locate the button on the main board 3 In atmosphere with pollutants connect the calibration ZERO cylinder to the sensor head of the Sensotox 2 using the calibration adapter and apply the gas flow Press the button until the Zero LED lights and then release it II Span calibration Connect the SPAN calibration cylinder to the sensor Sensotox 2 head using the calibration adapter and applying a flow of gas Note For proper calibration it would be best to apply gas flow for long enough to obtain a stable reading from the sensor This can be achieved by measuring 4 20 analogue output until the current remains stable Press the button until the Span LED lights and then release it Sensotran s l 31 12 2014 Page 19 SENSOTOX 2 User Manual III Changing Span value Press the button until the LED indicating Span modification Cal V lights and then release it The span value is show
12. n on the LEDs starting sequentially with units so that first the units are displayed then the tens and finally the hundreds Each press of the button increases the Span by one Once the new value has been set it will be automatically saved if the button is not pressed again 2 4 2 Calibrating the display unit I Zero calibration Ensure that there are no flammable gases or gases that might interfere with the sensor reading in the area where the detector is located Suspected that the atmosphere is not clean use a zero gas such as Nitrogen 5 0 To accede to Calibration Menu Press MODE from the actual reading screen A Cr u message appears on the screen Tip To pass to Span Calibration press MODE To return to actual reading press L I Sensotran s l 31 12 2014 Page 20 SENSOTOX 2 User Manual In atmosphere with pollutants connect the calibration ZERO cylinder to the sensor head of the Sensotox 2 using the calibration adapter and apply the gas flow Press to start calibration Zero LED will lit and Eru message will be displayed alternatively with a countdown Tip Before countdown will finish you can cancel calibration by pressing any key Flor When countdown will be completed LED and dErL disappears and calibration data will be saved Note The machine returns to reading the display after 60 seconds of inactivity When Zero Calibration will be finished instrument will advan
13. rnal LED LCD Analogue EA mr Exceeds Alarm Low Reading Based on the low ALM1 reading alarm threshold Exceeds Alarm High Reading Based on the high ALM1 reading alarm threshold Out of Alarm High 22 MA range ALM2 Calibration Alarm Fault fault ALM2 i Sensor drift Alarm Fault ALM2 I ADC Alarm Fault saturated ALM2 i Sensotran s l 31 12 2014 Page 16 SENSOTOX 2 User Manual 2 4 Calibration ATTENTION The calibration of all unit purchased from Sensotran should be tested by exposing the sensor to a known concentration of gas before putting the instrument into service For maximum safety the accuracy of Sensotox 2 should be checked by exposing the sensor to a known concentration of gas over a period of time Sensotox 2 units are calibrated using a two point calibration process First use the Zero calibration then the SPAN calibration exposing the sensor to a reference gas concentration to establish the second calibration point Note Zero calibration must be carried out before Span Calibration The calibration requires a zero cylinder a Span cylinder and a calibration adapter Sensotran s l 31 12 2014 Page 17 SENSOTOX 2 User Manual Sensotox 2 connected to a calibration gas cylinder with an adapter The blind unit has four LEDs on the main board The first LED indicates the calibration of Zero the second indicates Span calibration and the third indicates Span modificatio
14. sing 0 9 1 1 Atm 30 V 2 Anormally open One for alarm 1 Relay contacts and one for alarm 2 Consult Sensotran for other possibilities Sensotran s l 31 12 2014 Page 4 SENSOTOX 2 User Manual Sensotox2 IR specifications size 190 ISO mm om eg 6g OOO Sensor ordes Pe IP 68 Power supply 9 36 V dc max 50 mA at 24 V dc 4 20 MA RS 485 at 4 8 9 6 or 19 2 kB s 7 segments 4 digits and 6 LEDs unit Display with window Magnetic key non intrusive access for calibration and adjustment unit with a User interface window Internal calibration button blind unit Humidity 0 95 RH non condensing 0 9 1 1 Atm 30 V 2 Anormally open One for alarm 1 Relay contacts and one for alarm 2 Consult Sensotran for other possibilities Sensotran s l 31 12 2014 Page 5 SENSOTOX 2 User Manual Sensotox2 LIE specifications size 190 ISO MIO Meg 6g O Sensor cate mees IP 68 Power supply 9 36 V dc max 50 mA at 24 V dc 4 20 MA RS 485 at 4 8 9 6 or 19 2 kB s l 7 segments 4 digits and 6 LEDs unit Display with window Magnetic key non intrusive access for calibration and adjustment unit with a User interface window Internal calibration button blind unit Humidity 0 95 RH non condensing 0 9 1 1 Atm 30 V 2 Anormally open One for alarm 1 Relay contacts and one for alarm 2 Consult Sensotran for other possibilities
15. tivate the desired button Sensotran s l 31 12 2014 Page 14 SENSOTOX 2 User Manual 2 3 3 Using the magnet Briefly touch the magnet onto the MODE circle or the and triangles Important Do not drag the magnet since two functions might be activated 2 3 4 Starting up the unit Both the detector with a window and the blind one require a Start up time that depends on the built in sensor un az is displayed on the detector with a window alternating with a countdown When the count reaches zero the detector is operative In both the detector with a window and the blind one the analogue output current is 2 mA during the start up time When the start up time has elapsed and provided there is no fault condition the 4 20 mA analogue output current will be proportional to the sensor reading 2 3 5 Display readout In the detectors with window once the detector goes into read mode it starts an automatic check for possible faults and alarm conditions If there is no fault or alarm condition the green Ok LED is activated and the gas concentration is shown Sensotran s l 31 12 2014 Page 15 SENSOTOX 2 User Manual If a fault is shown the Fdul LED will lit Each alarm condition has a corresponding LED 2 3 6 Alarm contacts The alarm contacts or alarm relays can be used to activate acoustic or luminous alarms External alarms have normally open contacts which close when there is an alarm Exte
Download Pdf Manuals
Related Search