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Related Manuals for Evikon E2638-H2S
Summary of Contents for Evikon E2638-H2S
- Page 1 ® PluraSens Hydrogen Sulfide Detector-Transmitter E2638-H2S User Manual...
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Page 2: Table Of Contents
Gas sensor replacement procedures Electrical connections Correct and incorrect cabling for 24 VAC Operation Maintenance Calibration Delivery set Order code for E2638-H2S options Configuring Return to default settings Modbus RTU Communication RS485 communication interface Communication parameters Modbus holding registers Warranty... -
Page 3: Hydrogen Sulfide
E2638-H2S Rev 21.06.2021 Hydrogen Sulfide Colorless toxic, corrosive and flammable gas with a smell of rotten eggs. Occurs in natural gas, volcanic gases, petroleum, and some sources of well water. It results from the anaerobic decay of sulfur-containing proteins, e.g. in sewers. -
Page 4: Specifications
E2638-H2S Rev 21.06.2021 Specifications Sensor type Electrochemical cell Sampling method Diffusion Typical detection range 0...100 ppm 0...2000 ppm Maximum overload 500 ppm 4000 ppm Resolution / digital unit 0.1 ppm 1 ppm Response time T90 < 30 s < 25 s Operating temperature -30...+50 °C... - Page 5 E2638-H2S Rev 21.06.2021 Relay option 2 × SPST relays (closing contact), Output relays 250 VAC / 30 VDC, 5 A max Default alarm setpoints LOW: 10 ppm/ 8 ppm Determined by user (set/release) HIGH: 20ppm/16 ppm within 5-95% of the range...
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Page 6: Product Description
E2638-H2S Rev 21.06.2021 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-H2S Rev 21.06.2021 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. -
Page 8: Mounting Dimensions
E2638-H2S Rev 21.06.2021 Mounting dimensions Front view Bottom view... -
Page 9: Sensor Probe Handling
E2638-H2S Rev 21.06.2021 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) -
Page 10: Electrical Connections
E2638-H2S Rev 21.06.2021 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-H2S Rev 21.06.2021 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...
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Page 12: Correct And Incorrect Cabling For 24 Vac
E2638-H2S Rev 21.06.2021 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. -
Page 13: Operation
Calibration E2638-H2S gas detector-transmitters have been calibrated by the Manufacturer with standard gas mixtures before delivery. Provided that the sensor is used under moderate conditions, the recommended interval for field recalibration is 6 months. Please contact... -
Page 14: Delivery Set
● Mounting accessories: ● 4 screws with plastic dowels ○ Fixing clamp for remote probe version ○ Order code for E2638-H2S options E2638 options Order code Remote probe, 3 m cable E2638-H2S-RP33-3 Remote probe, 10 m cable E2638-H2S-RP33-10 Duct mount option, stem Ø35×L230 mm... -
Page 15: Configuring
E2638-H2S Rev 21.06.2021 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-H2S Rev 21.06.2021 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... - Page 17 E2638-H2S Rev 21.06.2021 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-H2S Rev 21.06.2021 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-H2S Rev 21.06.2021 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...
- Page 20 E2638-H2S Rev 21.06.2021 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,...
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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 7/9, Tartu 50411 Estonia info@evikon.eu...
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