midiELCOR is battery powered EVCwith integrated GSM/GPRS modem designed to be used for installation inhazardous areas. Device can be optionally supplied from external intrinsicallysafe power supply. midiELCOR design offers ideal solution for telemetry datacollection and billing.

midiELCOR uses secure sealedswitches to prevent unauthorized configuration changes and obtainingunauthorized data from the device. The switches are located inside of thedevice. Additionally, sophisticated system of passwords can be activated.

Device has been equipped with sixbutton keyboard and backlit graphic LCD display. Users can easily check instantvalues, device parameters or archives.

Basic features

  • One channel Electronic Volume Converter (EVC)
  • Designed to be used for installation in hazardous area – Zones 0, 1 and 2
  • Battery lifetime more than 5 years
  • Fully configurable device (Telves service tool)
  • Graphical backlit LCD display 128 x 64 pixels
  • Possibility to connect 3rd pressure or temperature sensor
  • Possibility to connect second EVC as subsystem
  • Typical error under reference conditions < 0.15 % from measured value (<0.5 % -  MID)
  • EC Certificate FTZU 11 ATEX 180X
  • Protection class IP 65
  • Working temperature -25°C to +70°C


  • Serial interface RS-232 / RS-485
  • Optical interface IEC 62056-21
  • GSM/GPRS modem

Inputs / Outputs

  • 4 digital inputs
  • 4 digital outputs
  • Up to 4 analog outputs realized via CL1 module ( 4-20mA)

Optional accessories

  • Thermowell, mounting kit, three-way tap (type DN 3 PN 100)
  • Digital transducers EDT 23 (pressure) or EDT 34 (temperature)
  • Infrared head HIE-03 (RS232) or HIE-04 (USB)
  • Current output module CL1 (4 - 20)mA
  • Intrinsically safe power supplies JBZ-04
  • Communication modules DATCOM K3/K4
  • Expansion module for digital transducer option (Option board RS485)
  • Telves - Setting and service SW