Faster access to collected data
Supervisory systems retrieve RTU data instead of polling every device sequentially over a remote link. This reduces delays in accessing collected information, including one-minute profiles when supported by meters.
EQUIPMENT
RTU-325KZ data acquisition unit
Data acquisition and transmission unit for automated metering, telecontrol and process data systems. It connects measuring devices, equipment signals and supervisory systems: collects and processes information, maintains a local archive, transfers measurements and events, and executes remote control commands.
RTU-325KZ-E3-M4-B5-DI8-DO2-T
Certificates and documentationKey benefits of RTU-325KZ
Local collection and archiving
On-site collection and storage reduce dependence on central server availability. Collected data can be transferred when the link returns. Archive depth depends on the data set and collection intervals.
Measurements, states and commands
Telemetering and status signals show site conditions. Remote commands operate through built-in outputs or compatible external modules according to the engineered control scheme.
Different devices in one system
Ethernet and serial interfaces connect meters, measuring instruments and I/O modules. Supported protocols enable integration of existing equipment and phased system expansion.
A basis for equipment diagnostics
Process parameters, states and events support trends, anomaly detection and condition analysis. Failure prediction and process-control recommendations are implemented in supervisory software.
Beyond energy metering
Collects energy import/export, power and network parameters. Where devices support them, power-quality and harmonic data are collected for further analysis.
Consistent time and diagnostics
Time synchronisation, event logs, self-diagnostics and remote settings help correlate events, identify faults and reduce site visits.
Redundancy to project requirements
Dual power inputs, a watchdog and industrial construction improve node resilience. Critical sites can use redundant links and RTUs, including multi-device hot standby.
Controlled communications and access
Access control and event logging complement exchange through a common node. Process-network segmentation and secure links are engineered as part of the site project.
Available protocols, client/server roles and device support are confirmed for the chosen software version. Profiles and harmonics depend on connected device capabilities. Data volume, update interval, archive depth and device/protocol compatibility require technical review. External modules are selected separately and do not change the standard model code.
Applications
Telecontrol
Telemetering and status signals show site conditions. Remote commands operate through built-in outputs or compatible external modules according to the engineered control scheme.
Process data system
Process parameters, states and events support trends, anomaly detection and condition analysis. Failure prediction and process-control recommendations are implemented in supervisory software.
Automated metering
Collects energy import/export, power and network parameters. Where devices support them, power-quality and harmonic data are collected for further analysis.
Central gateway functions
Ethernet and serial interfaces connect meters, measuring instruments and I/O modules. Supported protocols enable integration of existing equipment and phased system expansion.
Specifications of one RTU
RTU-325KZ-E3-M4-B5-DI8-DO2-T
| E3 | 3 Ethernet 10/100Base-TX; isolation 1.5 kV for 1 min. |
|---|---|
| M4 | 4 RS-232 ports without galvanic isolation. |
| B5 | 4 two-wire RS-485 ports plus 1 RS-485/422 with two- or four-wire wiring; isolation 2.5 kV for 1 min; surge protection. |
| DI8 | 8 DI; threshold ≥ 10 V; 13 mA at 24 V; optical isolation 3.75 kV for 1 min. |
| DO2 | 2 DO up to 28 V / 300 mA; optical isolation 3.75 kV for 1 min; reverse-polarity protection and resettable fuse. |
| T | −40…+70 °C. |
| USB | 2 × USB 2.0. |
| DC | Two 12-30 V DC inputs with automatic switchover when backup power is available; up to 15 W per RTU. |
| NVM | Non-volatile memory ≥ 1 GB; data retention without external power ≥ 10 years. |
| MTBF | Service life ≥ 30 years; MTBF 240,000 h at +25 °C and 50% humidity. |
| IP30 | Naturally cooled metal enclosure, IP30 without an external cabinet. Cabinet protection is defined by the project. |
| SIZE | 100 × 142 × 178 mm; 208 mm high with mounting base; weight ≤ 1.5 kg. |
RTU-325KZ consolidated manual, standard model specifications.
RTU-325KZ documentation
Operating manuals
Operating manual · EnglishPDF · 114.19 MB Operating manual · KazakhPDF · 115.20 MB Operating manual · RussianPDF · 29.96 MB
Certificates
Type approval certificate · KZPDF · 0.24 MB Measuring instrument approval certificate · RUPDF · 0.23 MB
Manuals are available in three languages. The Kazakh and English editions are working technical translations. Certificates are provided in their original languages.
Appearance and configuration depend on the variant. Specifications are confirmed during selection.