Automated Streetlight and Sub‑Meter Testing

RADIAN Multi‑Channel Pulse Comparator

Name: RADIAN Multi-Channel Pulse Comparator
Brand: RADIAN

The RADIAN Multi‑Channel Pulse Comparator is built to support high‑volume testing while maintaining the stability and precision your meter shop process demands.

Designed for use with RADIAN’s WECO 4050X/WECO 4150X/WECO 4330X Test Boards, each comparator provides 16 pulse inputs, and each WECO Test Board can interface with up to four comparators at the same time—supporting scalable throughput without sacrificing testing consistency.

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Product Highlights

The Multi‑Channel Pulse Comparator pairs high‑channel density with a workflow built for repeatable accuracy. In operation, the WECO 4050X/WECO 4150X/WECO 4330X sources voltage and current to a group of up to 16 meters per comparator, and each meter’s pulse output is connected to a comparator channel. Those meter pulses are then compared against reference pulses from the RADIAN standard housed within the WECO Test Board to determine meter accuracies—delivering a stable, dependable method for high‑volume verification.

Because the comparator can be moved and operated from any WECO 4050X/WECO 4150X/WECO 4330X Test Board, it adds flexibility while keeping your testing process consistent and reliable across stations.

The RADIAN Multi‑Channel Pulse Comparator working in conjunction with a WECO 4050 Test Board.

Features

High‑Volume Pulse Comparison for Stable, Precise Testing Workflows

16 pulse input channels per comparator for efficient, high‑volume pulse comparison.
Up to four comparators per WECO 4050X/WECO 4150X/WECO 4330X Test Board to scale throughput while maintaining process stability.
NIST traceability to support revenue‑grade confidence, accuracy expectations, and auditability.
WATT‑Net software + database integration to keep results organized in a single database and format for reliable reporting.
Supports common streetlight/sub‑meter use cases for high volume testing.
Operable from WATT‑Net software to support stable, repeatable workflows across your shop.

A control map of the RADIAN Multi‑Channel Pulse Comparator

High‑Volume Streetlight and Sub‑Meter Testing

How a Multi-Meter Test Runs

Connect the meters. Connect up to 16 meters to the source circuit of a WECO 4050X, 4150X, or 4330X Test Board.
Connect the pulse outputs. Wire each meter’s pulse output to its own comparator channel.
Run the test from WATT-Net. Each meter’s pulses are compared with reference pulses from the RADIAN standard inside the Test Board.
Review the results. Results for every meter are stored in one WATT-Net database.

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How Many Meters Per Test?

Each comparator has 16 pulse input channels, and a WECO 4050X, 4150X, or 4330X Test Board can run up to four comparators at the same time. Comparators can be moved between Test Boards, so capacity can follow the work.

Because the comparator uses the RADIAN standard already inside the Test Board, streetlight meters and sub-meters are tested with the same traceable reference and the same WATT-Net records as the rest of your meters.

Comparators	Pulse channels (meters per test)
1	16
2	32
3	48
4 (maximum per Test Board)	64

Multi-Channel Pulse Comparator FAQ

What meters is the Multi-Channel Pulse Comparator for?

Streetlight meters, sub-meters, and other meters with a pulse output, typically with 5 A or milliamp-level inputs. As these meters approach revenue grade, utilities need to test them in volume while keeping the NIST traceability required for billing.

The front panel the RADIAN Multi-Channel Pulse Comparator on a transparent background.

Which Test Boards does it work with?

The WECO 4050X, 4150X, and 4330X Test Boards. A comparator can be moved from one of these Test Boards to another.

How many meters can be tested at once?

Up to 16 meters per comparator, and up to four comparators per Test Board.

How is the system's accuracy checked?

WATT-Net includes an automated Standards Compare test that runs, records, and documents the system's accuracy against an external RADIAN reference standard (sold separately). See the Universal Standards Compare Adapter.

Is the testing NIST traceable?

Yes. Meter pulses are compared with reference pulses from the RADIAN standard inside the Test Board, which is calibrated with traceability to NIST through RADIAN Calibration Services.