Endress+Hauser's EngyCal RH33 Btu meter and EngyCal RS33 steam meter energy managers record energy data for billing purposes

Endress+Hauser announces the EngyCal RH33 Btu meter and EngyCal RS33 steam meter energy managers. Both record energy data for billing purposes in applications such as custody transfer, heating and cooling systems, steam production and steam distribution systems.

The EngyCal RH33 Btu meter was developed for custody transfer applications with liquids such as water, water glycol mixtures or thermal oils. EngyCal RH33 calculates enthalpy (hot & cold), energy (thermal flow), density and mass flow based on the measured flow value and temperature differential. It is also available with custody transfer approval.

The EngyCal RS33 steam calculator can be used for recording and billing steam mass and energy flow for applications with saturated or superheated steam. It calculates the enthalpy and energy (thermal flow) as well as the density and the mass flow based on the measured flow value, temperature and/or pressure. All calculations are carried out according to the EN 1434 and IAPWS-IF 97 standard (International Association for The Properties of Water and Steam).

Both meters can be ordered with MID approval for custody transfer applications.

EngyCal meters have a built-in measurement logbook as well as an event logbook. The measurement memory has defined report formats (day, month, year, billing date), while the event logbook provides a quick summary of consumption values and makes energy invoicing possible.

By using a defined fault behavior and the separate deficit counter, the meters is designed to ensure transparency of the energy calculation and documentation for invoices.

Using Field Data Manager software, the stored measurements, alarms and events — as well as the device configuration — can be selected and stored in an SQL database.

All meters are supplied with a 4-20mA output, and can be ordered with  interfaces for Modbus RTU, Modbus TCP or M-bus.

If the meters are connected using one of the available digital interface options, customers can read out measurement data, calculated values and device data (such as serial number, TAG) at any time using the integrated web server. Because the meters have web server capability, this information can be accessed via any web browser, and additional software for the supervision of online data is therefore not necessary. 

Custody transfer heat counters are normally ordered pre-programmed, and can be supplied as such by Endress+Hauser. EngyCal can be programmed in the field even in custody transfer applications.

EngyCal meters have a multi-line backlit liquid crystal display, and support multiple operating languages. Configuration can be carried out on the spot by using push buttons, or by using the USB interface and Endress+Hauser’s FieldCare software.

Predefined universal inputs support commissioning and are suitable for connection to and powering of commonly used flow meters, pressure transducers and temperature sensors. The housing is suitable for direct field or wall mounting, and DIN-rail mounting is designed to simplify panel mounted installations.

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