volume converters
EK205 Volume Converter
Battery-operated Volume Converter for Standard Gas Meter Applications
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Overview
The EK205 is a battery-operated volume conversion device that can be easily mounted onto gas meters from Elster or other manufacturers. Powered by a lithium battery for a minimum five-year service life, the device calculates gas volume at base conditions on the basis of consumption data supplied by flow-proportional pulses from the connected meter and the measurements of gas temperature and pressure. The data logging function, serial interface and different data communication protocols allow integration in head-end and Supervisory Control and Data Acquisition (SCADA) systems.
Specifications
Environmental Conditions
- Gas Temperature Range
- -30 to +60 deg C
- Humidity Conditions
- Condensation
- Relative Humidity
- 93% Max
- Temperature Sensors
- -30 to +60 deg C
- Pressure Sensor
- CT30, 0.8 to 16 bar abs, Overload up to 40 bar
- Protection Class
- IP65
Communication & Protocols
- Protocols Supported
- IEC 62056-21, Modbus (ASCII/RTU/TCP), DLMS/COSEM
- Data Logging
- Measurement Archives, Logbooks, Status Registers
- Communication Protocols
- IEC 62056-21, Modbus (ASCII, RTU, TCP), DLMS/COSEM (HLS and LLS)
- Communication
- Optical Interface (IEC 62056-21), RS232/RS485 (IEC 62056-21, Modbus ASCII/RTU/TCP), 2G GSM/GPRS Modem, DLMS/COSEM (HLS/LLS)
Electrical Specifications
- Supply Voltage
- 3.6 V (Basic Device Battery), 3.9 V (Modem Battery), 6 to 9 VDC (External Power Supply)
- Power Supply
- 3.6 V Battery, 3.9 V Modem Battery, 6 to 9 VDC, max 60 mA
Dimensions & Weight
- Dimensions
- 170 mm W x 90 mm D x 180 mm H
Standards & Certifications
- Approvals
- ATEX and IECEx Certified, WEEE Directive Compliant
Applications & Compatibility
- Applications
- Can assign volumes to tariffs and monitor additional parameters depending on configuration
- Converts gas volume measured by a meter under operating conditions to base (standard) conditions
- Mounting
- On Gas Meter/Pipeline/Wall (with Appropriate Brackets/Kits)
I/O Capabilities
- Inputs
- (2) Digital (Pulse/Reporting)
- Outputs
- (2) Digital (Pulse/Reporting)
Software & Interface
- Display
- Alphanumeric with Navigation Keys
Others
- Ambient Temperature Range
- -40 to +60 deg C
Environmental Conditions
- Gas Temperature Range
- -30 to +60 deg C
- Humidity Conditions
- Condensation
- Relative Humidity
- 93% Max
- Temperature Sensors
- -30 to +60 deg C
- Pressure Sensor
- CT30, 0.8 to 16 bar abs, Overload up to 40 bar
- Protection Class
- IP65
Communication & Protocols
- Protocols Supported
- IEC 62056-21, Modbus (ASCII/RTU/TCP), DLMS/COSEM
- Data Logging
- Measurement Archives, Logbooks, Status Registers
- Communication Protocols
- IEC 62056-21, Modbus (ASCII, RTU, TCP), DLMS/COSEM (HLS and LLS)
- Communication
- Optical Interface (IEC 62056-21), RS232/RS485 (IEC 62056-21, Modbus ASCII/RTU/TCP), 2G GSM/GPRS Modem, DLMS/COSEM (HLS/LLS)
Electrical Specifications
- Supply Voltage
- 3.6 V (Basic Device Battery), 3.9 V (Modem Battery), 6 to 9 VDC (External Power Supply)
- Power Supply
- 3.6 V Battery, 3.9 V Modem Battery, 6 to 9 VDC, max 60 mA
Dimensions & Weight
- Dimensions
- 170 mm W x 90 mm D x 180 mm H
Standards & Certifications
- Approvals
- ATEX and IECEx Certified, WEEE Directive Compliant
Applications & Compatibility
- Applications
- Can assign volumes to tariffs and monitor additional parameters depending on configuration
- Converts gas volume measured by a meter under operating conditions to base (standard) conditions
- Mounting
- On Gas Meter/Pipeline/Wall (with Appropriate Brackets/Kits)
I/O Capabilities
- Inputs
- (2) Digital (Pulse/Reporting)
- Outputs
- (2) Digital (Pulse/Reporting)
Software & Interface
- Display
- Alphanumeric with Navigation Keys
Others
- Ambient Temperature Range
- -40 to +60 deg C
- Gas Temperature Range : -30 to +60 deg C
- Protocols Supported : IEC 62056-21, Modbus (ASCII/RTU/TCP), DLMS/COSEM
- Humidity Conditions : Condensation
- Supply Voltage : 3.6 V (Basic Device Battery), 3.9 V (Modem Battery), 6 to 9 VDC (External Power Supply)
- Data Logging : Measurement Archives, Logbooks, Status Registers
- Dimensions : 170 mm W x 90 mm D x 180 mm H
- Approvals : ATEX and IECEx Certified, WEEE Directive Compliant
- Ambient Temperature Range : -40 to +60 deg C
- Applications : Can assign volumes to tariffs and monitor additional parameters depending on configuration|Converts gas volume measured by a meter under operating conditions to base (standard) conditions
- Mounting : On Gas Meter/Pipeline/Wall (with Appropriate Brackets/Kits)
- Relative Humidity : 93% Max
- Power Supply : 3.6 V Battery, 3.9 V Modem Battery, 6 to 9 VDC, max 60 mA
- Inputs : (2) Digital (Pulse/Reporting)
- Temperature Sensors : -30 to +60 deg C
- Pressure Sensor : CT30, 0.8 to 16 bar abs, Overload up to 40 bar
- Outputs : (2) Digital (Pulse/Reporting)
- Display : Alphanumeric with Navigation Keys
- Communication Protocols : IEC 62056-21, Modbus (ASCII, RTU, TCP), DLMS/COSEM (HLS and LLS)
- Communication : Optical Interface (IEC 62056-21), RS232/RS485 (IEC 62056-21, Modbus ASCII/RTU/TCP), 2G GSM/GPRS Modem, DLMS/COSEM (HLS/LLS)
- Protection Class : IP65
Manuals and Guides
Name
Description
File Size
Date
Size
EK205 Operating Instructions manual
application/pdf 5.73 MB
10/31/2023
5.73 MB
Data Sheet
Name
Description
File Size
Date
Size
EK205-M Modem Installation Sequence procedure
application/pdf 551.96 KB
1/28/2026
551.96 KB
EK205-M Technical Specification updated for the release R200.5
application/pdf 179.38 KB
10/2/2025
179.38 KB
Name
Description
File Size
Date
Size
EK205 Operating Instructions manual
application/pdf 5.73 MB
10/31/2023
5.73 MB
EK205-M Modem Installation Sequence procedure
application/pdf 551.96 KB
1/28/2026
551.96 KB
EK205-M Technical Specification updated for the release R200.5
application/pdf 179.38 KB
10/2/2025
179.38 KB
Name
Description
File Size
Date
Size
EK205-M Modem Installation Sequence procedure
551.96 KB
1/28/2026
EK205-M Technical Specification updated for the release R200.5
179.38 KB
10/2/2025
Name
Description
File Size
Date
Size
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