Domestic gas meter test system

Atmospheric test system with nozzle technology for series testing and calibration of diaphragm, ultrasonic and micro-thermal gas meters – from a single-position rig to 24 test positions.

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Domestic gas meter test system with diaphragm meters in series

MEASURING RANGE

G1.6 – G6

FLOW RATE

16 l/h – 10 m³/h

MEASUREMENT UNCERTAINTY

≤ 0.25 %

TEST POSITIONS

1 – 24

What the system delivers

The system uses critical-flow nozzles as reference. Measurement accuracy therefore remains stable for years without moving reference parts wearing out. Testing is done with air in atmospheric operation; a closed-loop version is available for natural gas or hydrogen.

The clamping system is designed for a service life of 20 years in three-shift operation. Test programmes, meter master data and reports run through the inotech standard user interface – identical to all other inotech systems, including ERP integration.

The system is used by meter manufacturers in series production, by verification bodies and utilities for periodic testing, and in accredited calibration laboratories.

Scope of supply

Test frame with meter clamping system

Nozzle bank with reference nozzles, pressure and temperature measurement

Control cabinet, pneumatics and vacuum generation

Operator station with inotech test software and database

Calibration, acceptance and operator training on site

Test positions with clamping system and touch operation — TEST POSITIONS WITH CLAMPING SYSTEM AND TOUCH OPERATION

Operator station with inotech test software — OPERATOR STATION WITH TEST SOFTWARE

Nozzle reference system of the test rig — NOZZLE REFERENCE SYSTEM

Engineered for accuracy, throughput and service life

Nozzle technology

Critical-flow nozzles as reference – highest accuracy and long-term stability without moving reference parts.

All measuring principles

Diaphragm, ultrasonic and micro-thermal gas meters can be tested on one system.

Smart meter communication

Various protocols including fully encrypted DLMS communication and parameterisation.

Robust mechanics

Clamping system designed for a service life of 20 years in three-shift operation.

High throughput

Up to 100,000 tests per year, depending on the number of test positions and the test programme.

ERP integration

Integration with existing ERP and MES systems, data export and test report archive.

Technical specification

VALUES DEPEND ON CONFIGURATION · BINDING IN THE PROJECT DATA SHEET

Measuring range

G1.6 – G6 (16 l/h to 10 m³/h)

Measurement uncertainty

≤ 0.25 %

Test positions

1, 3, 5, 6, 9, 10, 12, 18, 24

Reference system

Critical-flow nozzles (nozzle technology)

Test medium

Air (atmospheric); natural gas or H₂ as closed-loop version

Meter types

Diaphragm, ultrasonic, micro-thermal gas meters

Smart meter protocols

DLMS incl. encrypted communication, manufacturer-specific protocols

Automation

Fully automatic test sequence, optional robot feeding

Throughput

up to 100,000 tests/year in three-shift operation

Software

inotech standard user interface, identical across all system types

Interfaces

ERP/MES integration, network, database and CSV export

Documentation

Test reports, calibration certificates, ISO 17025-capable traceability

Configuration and expansion

Temperature chamber

Testing at defined ambient temperatures for type testing and approval.

Closed-loop operation

Changeover from air to natural gas or hydrogen in a closed circuit.

Automated handling

Feeding, clamping and removal of meters without operator intervention.

Meter purging

Removal of residual gases when testing used meters.

Retrofit

Modernisation of existing test systems to current controls and software.

Do you have specific technical requirements?

Send us your specification – meter types, flow ranges, number of test positions and the required degree of automation.

Send specification Service & calibration