Choose the equipment group
For consumption metering, start with SDM or DCM and define AC or DC operation and the connection method. Consider Smart X when the project requires network parameters and harmonic readings. If the instrument stays in place but an external sensor needs replacing, use the current-transformer group.
Specify an installed-device replacement
Photograph the front and side identification, terminal markings and the installation space. Transcribe the full model suffix. If the circuit includes CTs or a shunt, identify those components separately; the meter name alone does not define the complete measurement set.
Current input, protocol and scope of supply
Separate the primary current from the signal reaching the instrument. Inputs rated at 1 A / 5 A, 40 mA, 100 mA, 100 mV and Rogowski-coil inputs require the corresponding sensors. The power-circuit current rating alone does not specify the instrument variant.
Inverter and charging-station projects
For an inverter, identify the exact model, software version and meter location in the power diagram. Include the supported-device list from the inverter documentation where available. Compatibility assessment concerns the specific device pair, including registers and energy-flow direction.
Prepare a sourcing request
Send the ordering code or photographs, required quantity and delivery destination. If identification is incomplete, include the relevant wiring-diagram section and explain the device function. For a new installation, provide a specification with a separate line for each instrument type.
Quotation and project confirmation
Availability, price, lead time, compatibility and included components are confirmed for the selected variant after reviewing the request. No authorized-dealer status is claimed. MID, UL/ETL or PTB/Eichrecht identification must be checked against the exact instrument and project requirements.