Evikon PluraSens E2638-NO User Manual
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Evikon PluraSens E2638-NO User Manual

Nitric oxide detector-transmitter
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PluraSens
Nitric Oxide Detector-Transmitter
E2638-NO
User Manual

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Summary of Contents for Evikon PluraSens E2638-NO

  • Page 1 ® PluraSens Nitric Oxide Detector-Transmitter E2638-NO User Manual...

  • Page 2: Table Of Contents

    E2638-NO Rev 08.05.2023 Table of contents Nitric oxide Specifications Product description Safety requirements Operating conditions Installation guidelines Mounting dimensions Sensor probe handling Gas sensor replacement procedures Electrical connections Correct and incorrect cabling for 24 VAC Operation Maintenance Calibration Delivery set Order code for E2638-NO options Configuring Return to default settings...

  • Page 3: Nitric Oxide

    E2638-NO Rev 08.05.2023 Nitric oxide A colorless toxic gas, relatively insoluble in water. When exposed to oxygen (including air), nitric oxide is converted into nitrogen dioxide. Chemical formula Molar weight Relative gas density (to air) 1.03 Conversion 1 ppm = 1.23 mg/m Boiling point -152 °C Flammability...

  • Page 4: Specifications

    E2638-NO Rev 08.05.2023 Specifications Sensor type Electrochemical cell Sampling method Diffusion Typical detection range 0...250 ppm Maximum overload 1000 ppm Resolution / digital unit 1 ppm Response time T90 < 40 s Sensor lifetime > 12 months Calibration interval 6 months Signal update Every 1 second 12...36 VDC (default),...
  • Page 5 E2638-NO Rev 08.05.2023 Relay option 2 × SPST relays (closing contact), Output relays 250 VAC / 30 VDC, 5 A max RE1 (LOW): set 10 ppm, release 8 ppm Default alarm setpoints RE2 (HIGH):set 25 ppm, release 20 ppm Signalling options Visual Red and green LEDs Acoustic alarm...

  • Page 6: Product Description

    E2638-NO Rev 08.05.2023 Product description E2638 series detectors-transmitters belong to the PluraSens® family of multifunctional measurement instruments. The instruments utilize gas sensors of various types with excellent repeatability, stability, and long lifetime. E2638 series provides two independent analog outputs OUT1 and OUT2, user-selectable to 4-20 mA or 0-10 V, proportional to gas concentrations.

  • Page 7: Operating Conditions

    E2638-NO Rev 08.05.2023 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.

  • Page 8: Mounting Dimensions

    E2638-NO Rev 08.05.2023 Mounting dimensions Front view Bottom view...

  • Page 9: Sensor Probe Handling

    E2638-NO Rev 08.05.2023 Sensor probe handling The E2638 series devices are available with a remote probe. The remote probe is connected to the main unit with a shielded cable. The default remote probe cable length is 3 m. Wall mount remote probe with fixing clamp (default version), Remote probe with rubber flange and three self-tapping screws (on request) The sensor probes of all types are equipped with a hydrophobic microporous PTFE filter to protect the sensor from dust, dirt, and water drops.

  • Page 10: Electrical Connections

    E2638-NO Rev 08.05.2023 Electrical connections Unscrew four lid screws and detach the lid from the device. Use two M16 cable glands to let in the cables of the power 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 relevant connection diagram.
  • Page 11 E2638-NO Rev 08.05.2023 Jumpers OUT1 type (open: 4-20 mA; closed 0-10 V) OUT2 type (open: 4-20 mA; closed 0-10 V) Reset Modbus network parameters to default X4 terminals OUT1 4-20 mA / 0-10 V output OUT2 4-20 mA / 0-10 V output 0 V / 24 VAC Neutral (optional) RS485 A / Data + RS485 B / Data -...

  • Page 12: Correct And Incorrect Cabling For 24 Vac

    E2638-NO Rev 08.05.2023 NOTE! The outputs are not galvanically isolated from the external power supply and share a common 0V. Allowed load resistance limits are stated in the Specifications table. To power the instrument from an external power source, connect terminals 0V and +U to the source. If the integrated mains power supply module is used, connect terminals L and N to the mains.

  • Page 13: Operation

    E2638-NO Rev 08.05.2023 Operation Turn on the power. The instrument warm-up time takes about 30 minutes after switching on and the final sensor stabilization time to maximum accuracy takes about 12 hours, but depending on the device condition it might take longer to stabilize. The operating status is indicated by the LED on the PCB of the device.

  • Page 14: Delivery Set

    E2638-NO Rev 08.05.2023 Delivery set Detector-transmitter E2638 ● Mounting accessories: ● 4 screws with plastic dowels ○ Fixing clamp for remote probe version ○ Order code for E2638-NO options E2638 options Order code Remote probe, 3 m cable E2638-NO-RP33-3 Remote probe, 10 m cable E2638-NO-RP33-10 Duct mount option, stem Ø35×L230 mm E2638-NO-DM...

  • Page 15: Configuring

    E2638-NO Rev 08.05.2023 Configuring A standard configuration kit includes a USB-RS485 converter, fixed flow regulator, gas tubing with applicators, and a software pack. Please contact your Seller for more information. Detectors-transmitters E2638 share all functionalities of the PluraSens® multifunctional platform. The features and options include: ●...

  • Page 16: Modbus Rtu Communication

    E2638-NO Rev 08.05.2023 Modbus RTU Communication RS485 communication interface Databits: 8 Supported Modbus functions: Parity: none / odd / even 03 – Read multiple registers Stop bits: 1 or 2 06 – Write a single register Protocol: Modbus RTU Communication parameters Parameter Permitted values Default...
  • Page 17 E2638-NO Rev 08.05.2023 1200, 2400, 4800, 9600, 19200, 0x0005 5 / 40006 RW Baud rate * 9600 38400, 57600 0x0006 6 / 40007 RW Response delay, ms 1...255 1 – No parity bit, 1 stop bit (default after factory reset) 2 –...
  • Page 18 E2638-NO Rev 08.05.2023 0 –none 2 – gas concentration 211 / Parameter tied to relay 0x00D3 9 – control by Modbus 40212 control, state set in MHR / 40214 0 – none 2 – gas concentration 212 / Parameter tied to relay 0x00D4 9- –...
  • Page 19 E2638-NO Rev 08.05.2023 0 – none 220 / 0x00DC RW Control logic for relay RE2 1 – relay on at high values 40221 2 – relay on at low values 3 – relay on at values within the range 4 – relay on for the values out of the range 221 / LOW setpoint for relay...
  • Page 20 E2638-NO Rev 08.05.2023 bit[8]=0/1 – LED deactivated/activated bit[9]=0/1 – buzzer deactivated/activated bit[10]=0/1 - LED is on/off in normal condition bit[11]=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 257 /...

  • Page 21: Warranty

    Manufacturer or damaged by customer error or negligence or if there has been an unauthorized modification. Manufacturer contacts Evikon MCI OÜ Teaduspargi 9, Tartu 50411 Estonia info@evikon.eu...

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