Measuring Devices
A broad range of high resilience, high accuracy measuring devices offering unrivalled levels of features and functionality. The devices are grouped as follows:
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RPDU Technology:
Widely deployed in high resilience applications. The units are fully configurable to meet exact client requirements and offer industry leading safety features, including the option to monitor Residual Current (RCM) in real time. This feature is an accepted alternative to isolation for periodic inspection and testing, in accordance with IEC 60364.
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​The portfolio includes a family of 45kW rated, AI Ready RPDUs designed to perform in high power, high ambient temperature environments. The RPDU units have been designed specifically for high ambient temperature environments, negating the need for components vulnerable in elevated temperatures. This approach increases life expectancy and reliability.
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All devices offer metering accuracy of ±1% across all power load types. Furthermore, MPL RPDUs are connected via a RS485 Comms Bus and centrally managed via MPL Gateways. This approach drastically reduces the required number of IP addresses, complexity of the supporting IT infrastructure and associated costs.
In-Line Units:
The MPL range of high resilience In-line units are an RPDU vendor neutral solution to simplify the introduction of intelligence into the data centre. The units, available in single and three phase versions, are rated to 16, 32 or 63A. The units will report volts, amps, kW, kW/h, kVA, PF and environmental conditions (temperature and humidity).
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Offering best in class accuracy, the units can also be supplied with enhanced features which:
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Comply with the Measuring Instrument Directive (MID), EN50470-1 and EN50470-3.
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Provide real time monitoring of Residual Current (RCM)
Metering & Sub Metering:
MPL define 5 Key Steps in the implementation of an effective Metering and Monitoring solution:
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Step 1. Identify Utilities to be monitored (electricity, gas, water, solar)
Step 2. Power Quality of incoming feeds
Step 3. Identify Sub Metering Requirements across Distribution Boards, Sub Distribution, RPP’s, Bus Bar, Panel Boards and MID
Step 4. Granular monitoring of payloads
Step 5. Visualisation and reporting, scalable beyond kWh and CO2
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To further elaborate, the first two steps focus on measurement and reporting of utilities at the building point of entry whilst also establishing the quality of voltage supplied by public electricity networks in accordance with BS EN 50160. The third step monitors energy distribution across the estate focusing on plant equipment and sub distribution level, whilst step four identifies when and where energy is consumed, focusing on the granular monitoring of individual payloads.
MPL Meter Types
MPL offer four generic groups of PMD (Performance Monitoring Device), Meters:
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Power Quality Analysers
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PMD including Power Quality and Residual
Current Monitoring (RCM) -
PMD Sub Metering
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PMD MID
Meter Standards and Certification
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BS EN 50160: Power Quality
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IEC 61557-12 (PMD)
- IEC 62053-21/22/23 (kWh)
- BS EN 61000 Harmonics
- BS EN 50470 Measuring Instrumentation
Directive (MID) - Underwriter Laboratories UL
MPL Technology RPDU Brochure