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E2648-ETO

Rev 11.05.2021

Operating conditions

The device should be used both in a non-hazardous area and in a basic electromagnetic
environment, where the latter is defined in EN 61326-1. Avoid strong mechanical shock and
vibrations. Avoid corrosive atmosphere and areas highly contaminated with dust, oil mist,
etc. Keep the instrument away from direct sunlight. A sudden temperature or humidity
change might affect the sensitivity of the sensor.

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 transmitter the following
points must be considered:

Application (the instrument is intended for leakage control.)

Properties of the space under investigation (room geometry, direction, and
velocity of airflows, etc.),

Ethylene oxide is 1.5 times heavier than air. It is recommended to locate the
sensor not higher than the potential leakage.

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 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.

Do not locate the detector close to ventilation openings and strong air currents. Avoid the
areas without air circulation (corners, niches) as well.

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.

Unscrew four lid screws and detach the lid from the transmitter. Attach the device to a wall
with screws passing through mounting holes. The device is fixed on the wall using two
holes located outside the sealed area of the device.

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Summary of Contents for PluraSens E2648-ETO

Page 1: ...PluraSens Ethylene Oxide Detector Transmitter E2648 ETO User Manual...

Page 2: ...ns 8 Sensor probe handling 9 Gas sensor replacement procedures 9 Electrical connections 10 Operation 13 Maintenance 13 Calibration 13 Delivery set 14 Order code for E2648 ETO options 14 Configuring 15...

Page 3: ...ical formula C2H4O Molar weight 44 Relative gas density to air 1 52 Conversion 1 ppm 1 80 mg m3 Boiling point 10 7 C Low explosive limit LEL vol in air 3 Upper explosive limit UEL vol in air 100 Odor...

Page 4: ...n 2 VA Analog outputs 2 4 20 mA 0 10 V user settable Outputs assignment OUT1 gas OUT2 gas Outputs scale width 10 resolution Recommended 20 100 of the detection range Cable connections Screwless spring...

Page 5: ...losing contact 250 VAC 30 VDC 5 A max Default alarm setpoints set release LOW 2 ppm 1 6 ppm HIGH 5 ppm 4 ppm Defined by user within 5 95 of the detection range Other options Remote probe Protection IP...

Page 6: ...or 230 VAC as options for power supply module Remote probe The version of your detector is marked on the package If the symbol is marked on the equipment consult the documentation for further informa...

Page 7: ...de is 1 5 times heavier than air It is recommended to locate the sensor not higher than the potential leakage The device should be accessible for maintenance and repair The aforementioned conditions a...

Page 8: ...E2648 ETO Rev 11 05 2021 Mounting dimensions Front view Bottom view 8...

Page 9: ...old filter Place a new filter into the cap and tighten it again NOTE Never stab or press the filter near its center where the sensor is located since this may damage the sensor Do not remove the filt...

Page 10: ...ly and of the external devices Attach the power cable to the device without turning it on Using the connection diagram below connect the analog outputs and digital interface terminals to the relevant...

Page 11: ...terminals OUT1 4 20 mA 0 10 V output OUT2 4 20 mA 0 10 V output 0V 0 V 24 VAC Neutral optional A RS485 A Data B RS485 B Data U 24 VDC 24 VAC Phase optional X5 terminals optional L 90 265 VAC Phase N...

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: ...pulses Normal operating measurement Continuously on or off Make sure that the transmitter is properly mounted the external devices connected the power LED green on and the control LED red is constantl...

Page 14: ...ng clamp for remote probe versions Order code for E2648 ETO options E2648 options Order code Remote probe 3 m cable E2648 ETO RP33 3 Remote probe 10 m cable E2648 ETO RP33 10 Integrated 90 265 V mains...

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: ...ster Error codes 01 Illegal function 02 Illegal data address 03 Illegal data value 04 Slave device failure details of last error 04 can be read from register 0x0008 Modbus holding registers Register a...

Page 17: ...as 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 filter time constant s 1 32000 seconds 0 no filter 0 Address Reg MHR...

Page 18: ...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 1000 s 0 Address Reg MHR RW Description Supported values dec Defaul...

Page 19: ...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 high current on analog output1 if bit 2 0 this bit will...

Page 20: ...efined 0x0107 263 40264 RW 0 value for analog output 2 32000 32000 gas units User defined 0x0108 264 40265 RW 100 value for analog output 2 32000 32000 gas units User defined The new value is applied...

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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