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E2658-CH4 

Rev 12.03.2021 

Operating conditions 

The device should be used in a basic electromagnetic environment, where the latter is

 

 

 

 

     

 

 

 

 

 

   

defined in EN 61326-1. Avoid strong mechanical shock and vibrations. Although E2658

   

 

 

 

 

 

 

 

 

 

 

series devices are suitable for use in the presence of flammable dust, special precautions

 

 

 

 

 

   

 

   

 

 

 

 

should be taken when operating in a dusty environment. Dust may block the porous filter of

   

 

 

     

 

 

 

 

 

 

 

   

the sensor and compromise the results of measurement. The detector should be inspected

 

 

 

 

 

   

 

 

 

   

 

regularly if used in a dusty atmosphere. Keep the instrument away from direct sunlight. A

   

     

 

 

 

 

 

 

 

 

   

sudden temperature or humidity change might affect the sensitivity of the sensor. Make

 

   

 

 

 

 

 

   

 

 

 

sure that installation and maintenance are performed in the explosion safe atmosphere. 

Installation guidelines 

Before proceeding with the installation it is mandatory to read the Safety requirements

 

 

 

 

     

   

 

 

 

 

section and make sure to comply with all listed instructions. Installation standards EN

 

 

 

   

 

 

 

 

 

 

 

 

60079-29-2 and EN 45544-4 are also recommended for further instructions and related

 

 

 

 

 

 

 

 

 

 

 

 

information about the installation. During the installation of the detector-transmitter the

 

 

 

 

 

 

   

 

 

 

following points must be considered: 

Application (air quality control or leakage detection.) 

Properties of the space under investigation (room geometry, direction, and

 

 

 

 

 

 

 

 

 

 

velocity of airflows, etc.), 

Methane is lighter than air, so the gas detector-transmitter should be placed

   

 

 

 

 

 

 

 

 

 

 

higher than the potential leakage or formation source or on the ceiling. 

The device should be accessible for maintenance and repair. 

The aforementioned conditions above will affect the coverage area of the device. however,

 

 

 

 

 

 

 

 

   

 

 

 

the coverage area for a detector-transmitter is usually between 2.5 to 5 meters radius. 

For early leakage detection install the sensor as close as possible to the potential leakage

 

 

 

 

 

 

   

   

   

 

 

 

sources (flanges, valves, pressure reducers, pumps, etc.), taking into consideration other

 

 

 

 

 

 

 

 

 

 

 

points listed above.  

For general area monitoring without definite leakage sources, the detectors should be

 

 

 

 

 

 

 

 

 

 

 

 

distributed evenly in the room.  

For personal safety control, the detectors are installed in the breathing zone (at the height

 

 

 

 

 

 

 

   

 

 

 

 

 

 

of the head of people or animals). The recommended sensor position is vertical, pointing

 

 

   

   

 

 

 

 

   

 

 

downwards.  

 

Summary of Contents for PluraSens E2658-CH4

Page 1: ...PluraSens Methane Detector Transmitter E2658 CH4 User Manual...

Page 2: ...Sensor probe handling 10 Gas sensor replacement procedures 10 Electrical connections 11 Operation 13 Maintenance 13 Calibration 13 Delivery set 14 Order code for E2658 CH4 options 14 Configuring 15 R...

Page 3: ...25 C and 1 atm 3 Chemical formula CH 4 Molar weight 16 Relative gas density to air 0 55 Conversion 1 ppm 0 65 mg m 3 Boiling point 161 49 C Low explosive limit LEL vol in air 5 0 Upper explosive limi...

Page 4: ...echanical shock vibrations or EMI Avoid exposure to corrosive gases carbon disulfide or silicon containing volatile products Signal update Every 1 second Power supply 11 30 VDC default 24 VAC or 90 26...

Page 5: ...IP 6x Ex CE marking According to 2014 30 EU and 2014 34 EU EN 61000 6 3 2020 EN 61326 1 2013 EMC Emissions EN 61000 6 1 2019 EN 61000 6 2 2019 EN 61326 2 1 2013 EMC Immunity EN 60079 0 2018 EN 60079...

Page 6: ...r power supply The version of your detector is marked on the package If the symbol is marked on the equipment consult the documentation for further information Safety requirements Misuse will impair t...

Page 7: ...ther instructions and related information about the installation During the installation of the detector transmitter the following points must be considered Application air quality control or leakage...

Page 8: ...the sealed area of the device see dimensional drawing Unscrew four lid screws and detach the lid from the detector Fix the detector on the wall and earth the enclosure using an earthing terminal on th...

Page 9: ...E2658 CH4 Rev 12 03 2021 Mounting dimensions Front view Bottom view 9...

Page 10: ...ove the filter as it may cause the device to show incorrect values and or break the sensor The recommended orientation of the sensor probe is vertical with the sensor tip pointing downwards This preve...

Page 11: ...r supply and of the external devices Without turning on the power plug the power cable and connect the analog relay outputs and or digital interface terminals to the necessary devices according to the...

Page 12: ...to an external RS485 network Both analog outputs can be independently changed between 4 20 mA and 0 10 V type using jumpers J1 OUT1 and J2 OUT2 By closing pins on a specific jumper the related output...

Page 13: ...vice is properly earthed The device is ready to use Maintenance Do not perform any maintenance operation with the power on Clean the device with a soft damp cloth Do not use any abrasive cleaning agen...

Page 14: ...E2658 Mounting accessories 2 screws with plastic dowels Order code for E2658 CH4 options 14 E2658 options Order code Integrated 90 265 V mains power supply module E2658 CH4 230 Integrated 24 VAC power...

Page 15: ...xible setting of analog output scales for each output Output zero and slope adjustment for calibration Free assignment of each of two relays to the chosen parameter Several relay control logic modes S...

Page 16: ...rameter Permitted values Default Supported baud rates 1200 2400 4800 9600 19200 38400 57600 9600 Data bits 8 8 Parity none odd even none Stop bits 1 2 1 Protocol Modbus RTU Modbus functions 03 Read mu...

Page 17: ...32000 32000 ADC units 0 0x00A6 166 40167 RW Slope adjustment for gas data 1 65535 512 0x00A7 167 40168 RW The change rate limit for gas units s 1 32000 0 no limit 0 0x00A8 168 40169 RW Integrating fi...

Page 18: ...ay RE1 0 1000 s 0 0x00D8 216 40217 RW Switching delay for relay RE2 0 1000 s 0 0x00D9 217 40218 RW Minimal on off time for relay RE1 0 1000 s 0 0x00DA 218 40219 RW Minimal on off time for relay RE2 0...

Page 19: ...RO bit 1 0 1 analog outputs deactivated activated bit 2 0 1 in case the sensor is absent turn signaling off on analog output1 bit 3 0 1 in case the sensor is absent turn on signaling with low current...

Page 20: ...0 1 1 Hz 50 on 50 off LED signal off on if relay1 turned on bit 12 0 1 2 Hz 50 on 50 off LED signal off on if relay2 turned on 0x0101 257 40258 R Raw gas sensor data 0 4095 ADC units 0x0103 259 40260...

Page 21: ...Manufacturer will at its option either repair or replace a product that proves to be defective This warranty is void if the product has been operated in conditions outside ranges specified by the Manu...

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