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E2658-C2H4 

Rev 12.03.2021 

Product description 

E2658 is a series of flameproof gas detectors-transmitters intended for operation in safe

     

   

 

 

 

 

 

   

 

zones and ATEX Zones 2 and 22. E2658 series devices are based on PluraSens®

 

 

 

   

 

 

 

 

 

 

 

 

 

multifunctional platform and provide all its features. The instruments utilize gas sensors of

 

 

 

     

 

 

 

 

 

   

various types with excellent repeatability, stability, and long lifetime. 

E2658 series provides two independent analog outputs OUT1 and OUT2, user-selectable to

 

 

 

 

 

 

 

 

 

 

   

4-20 mA or 0-10 V, proportional to gas concentrations. RS485 Modbus RTU digital

 

 

 

   

 

 

 

 

 

 

 

 

communication interface allows easy instrument configuration and integration into various

 

 

 

 

 

 

 

 

 

 

automation systems.  

The following features are available as an option: 

Two relays RE1 and RE2 with closing contacts. Relay outputs can be used to

 

 

 

 

 

 

 

 

 

 

 

 

   

switch alarm sirens, ventilation fans, shut-off valves, or other actuators, 

24 VAC or 230 VAC as options for 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 the protection of the product. Always adhere to the safety provisions

 

 

 

 

   

 

 

 

   

 

 

 

applicable in the country of use. 

Do not perform any maintenance operation with the power on. Do not let water or foreign

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

objects inside the device. 

Removal of the PCB from the enclosure voids the warranty. Do not touch the electronic

   

 

 

 

 

 

 

 

 

 

 

 

 

 

components directly, as they are sensitive to static electricity. 

Connection diagrams can be found in the electrical connections section. The device might

 

 

 

 

   

 

 

 

 

 

 

 

not perform correctly or be damaged if the wrong power supply is connected.  

It is crucial to tighten properly all the thread connections (screws, cable glands). Use ATEX

   

   

 

   

 

 

 

 

 

 

 

 

certified armored cables or cable conduits that are rated for use in the desired

 

 

 

 

 

 

 

 

 

 

 

 

 

 

environment. 

A disconnecting device that is marked as such and easily accessible should be included in

 

 

 

   

   

 

 

 

 

   

   

the installation of this product. 

The device should be properly earthed. 

 
 
 

Summary of Contents for E2658-C2H4-230

Page 1: ...PluraSens Ethylene Detector Transmitter E2658 C2H4 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 C2H4 options 14 Configuring 15...

Page 3: ...m 3 Boiling point 103 7 C Low explosive limit LEL vol in air 2 7 Upper explosive limit UEL vol in air 36 0 Odor Faint sweet odor when pure Odor threshold 270 600 ppm so the odor is not an adequate war...

Page 4: ...assignment OUT1 2 gas OUT2 2 gas Output scale width 10 resolution Recommended 20 100 of the detection range Load resistance R L Us 2 V 22 mA for 4 20 mA R L 250 kOhm for 0 10 V mode Digital interface...

Page 5: ...4 EN 60079 29 1 2016 EN 60079 29 2 2015 EN 60079 29 3 2014 Operating conditions 20 50 C up to 100 RH 0 9 1 1 atm Explosion safe zones and ATEX Zones 2 and 22 Avoid strong mechanical shock vibrations o...

Page 6: ...or 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...

Page 7: ...urther 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 leakag...

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 C2H4 Rev 12 03 2021 Mounting dimensions Front view Bottom view 9...

Page 10: ...since this may damage the sensor Do not remove 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...

Page 11: ...er 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 th...

Page 12: ...g 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 outpu...

Page 13: ...the conformity to IP66 protection class and ATEX requirements Make certain that the device is properly earthed The device is ready to use Maintenance Do not perform any maintenance operation with the...

Page 14: ...2658 Mounting accessories 2 screws with plastic dowels Order code for E2658 C2H4 options 14 E2658 options Order code Integrated 90 265 V mains power supply module E2658 C2H4 230 Integrated 24 VAC powe...

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: ...C 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 f...

Page 18: ...lay 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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