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DA28, split prepayment meter, lit on a dark floor
DA28Product image, AI-lit from manufacturer photograph, not an installationSpecifications are confirmed from documents, never read from this image.

Electric Metering & AMI

DA28

Split prepayment metering: the measuring unit is installed out of the customer's reach on a DIN rail in a sealed or shared enclosure, and the customer operates the account through a separate interface unit in the premises.

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Manufacturer photograph

Inspect the product itself.

The image above is AI-lit from this manufacturer photograph for presentation, and no specification is read from it. Use the six views to inspect the manufacturer image, its close view, interfaces, system context, drawing gate and evidence boundary.

DA28, Studio view

PRODUCT IMAGE · 01/06DA28Product image from the available source. Confirm the exact model, ratings, dimensions and interfaces by document.

IMAGE REFERENCECurrent product imageRatings, dimensions, interfaces and compliance are confirmed from the applicable documents.

POSSIBLE USEUtility metering, billing and supported AMI operationsA starting point for discussion, not an automatic recommendation.
WHAT WE CAN CONFIRM TODAYInitial product informationUseful product information is available for early review. Final technical evidence follows requirement confirmation.
FIRST PROJECT CHECKControlling terms of reference (TOR) and meter populationIf you do not know this yet, Metro Power can help identify what is needed.
Published specifications

DA28, as published.

Figures from the current product reference.

DA28 published specifications
ModelDA28
TypeSplit prepayment meter
System familyElectric Metering & AMI
Tariffs and prepaymentStandard Transfer Specification (STS) prepayment
InterfacesCustomer interface unit in the premises, paired to the meter
Tamper resistanceMeter-box tamper detection
BatteryReplaceable battery

Evidence level: initial product information. Confirm the exact model code, option, revision and controlling TOR before using any fact in a compliance statement, offer or installation decision.

System context

Where the meter sits, and what carries its reads.

A meter is the last piece of equipment before the customer and the first link in the utility's data chain. Both paths have to be confirmed for the offered model.

Illustrative evening scene of distribution lines and a substation above a coastal town
Illustrative scene, not a Metro Power site or installation.

Power path

  1. Distribution transformerSteps the feeder down to the service voltage.
  2. Meter base or enclosureHolds, seals and protects the meter.
  3. This productDA28Measures the energy the customer takes, and the events that matter for billing.
  4. Customer supplyResidential, commercial or industrial service.

Data path

  1. From the DA28Reads, events and, where fitted, relay commands.
  2. Data concentratorCollects an area where the network uses one.

  3. Pictorial drawing

    Head-end and MDMS

    The head-end gathers reads; meter data management validates them for billing.

    Head-end and MDMS, pictorial drawing at full size
    A line drawing made from the published facts, not a photograph. It shows the general form of the equipment, not an exact product view.
    Head-end and MDMSThe head-end gathers reads; meter data management validates them for billing.
PowerDataReal product photographDrawn: equipment Metro Power does not supplyDrawn: supplied, with no published photograph
Options and differences

Three ways reads reach the utility

Which one applies depends on the communications fitted to this model. Metro Power confirms it against the datasheet.

  • Through a data concentrator

    Meters talk over power-line carrier or radio to a concentrator for their area; one backhaul link serves many meters. Suits dense service areas.

  • Direct cellular

    Each meter carries its own cellular module and reports straight to the head-end. No field collection hardware, but a data plan per meter and signal at every service point.

  • Read on site

    An optical port read with a handheld. No network cost, and no remote reads, alarms or relay control between visits.

Application context

Where this product fits.

Typical applications for this product family. Fit still depends on the exact service, duty, operating objective and approved configuration, so treat these as starting points rather than recommendations.

  1. 01Automated billing reads
  2. 02Loss analysis
  3. 03Load profiling
  4. 04Outage and event visibility
  5. 05Remote service operations where enabled
  6. 06Phased utility modernization

Before an offer

What Metro Power confirms before DA28 is offered.

Four steps, in the order they happen: the evidence that identifies the exact unit, what the public record already shows, what your project must confirm, and the controlled documents that close the loop.

01Priority meter evidence package

A credible meter decision needs more than a polished front view.

Before a meter is offered, Metro Power assembles this evidence for the exact unit, from its identity through to project release. A photograph covers only the first line.

  1. 01IDENTITY

    Front, nameplate and model identity matched to the offered unit

  2. 02FIT

    Service form, voltage, current class, wiring and installation arrangement

  3. 03INTERFACES

    Terminal, communications, relay, optical and accessory evidence as applicable

  4. 04AUTHORITY

    Controlled datasheet, drawing, certificates and principal confirmation

  5. 05PROJECT RELEASE

    TOR matrix, approved configuration, test evidence and offer revision aligned

02Professional documentation

One product identity. Five controlled evidence gates.

This schedule shows what the public record supports and what Metro Power must still match before the product becomes a technical or commercial commitment.

ControlCurrent public recordProject release requirementStatus
IdentityDA28 · Split prepayment meterExact model code, production revision and option scheduleInitial product information
ApplicationSplit prepayment metering: the measuring unit is installed out of the customer's reach on a DIN rail in a sealed or shared enclosure, and the customer operates the account through a separate interface unit in the premises.Approved service, duty, site and operating useApplication review
Technical factsCustomer interface unit in the premises, paired to the meter · Replaceable battery · Meter-box tamper detection · Standard Transfer Specification (STS) prepaymentControlled datasheet and requirement-by-requirement compliance matrixConfiguration check
Information to prepareControlling terms of reference (TOR) and meter population · Service type, voltage, frequency, form and class · Pilot geography and communications study · Billing and customer information system (CIS) integration requirements · Cybersecurity and data rules · Success measures and rollout gateDrawings, terminals, communications, accessories and system interfacesEvidence required
Approval and supplyNot shown on this pageCurrent certificates, test records, principal confirmation, availability and deliveryRelease before offer

03Configuration gate

What must be confirmed before an offer.

Exact form, class, voltage, current, reference frequency, relay, protocol, communications, certification and firmware are confirmed in a project compliance matrix.

Check if this fits my project Understand the complete system architecture
  1. 01Controlling terms of reference (TOR) and meter population
  2. 02Service type, voltage, frequency, form and class
  3. 03Pilot geography and communications study
  4. 04Billing and customer information system (CIS) integration requirements
  5. 05Cybersecurity and data rules
  6. 06Success measures and rollout gate

04Controlled document request

Request a controlled offer.

Need the current datasheet or compliance evidence? Metro Power will match the document revision, model and configuration to your requirement before release. Tell us the decision, TOR or application the document must support.

Send a request