Why Choose the Lovato DMK81R1 Single-Phase Digital Ammeter?
The Lovato DMK81R1 is a compact single-phase digital ammeter designed for accurate AC current monitoring, alarm signalling and protection in industrial switchboards, motor control centres and electrical distribution systems. It provides clear digital current indication together with programmable monitoring functions, making it ideal for protecting motors, feeders and electrical equipment.
Using True RMS measurement, the DMK81R1 delivers reliable current readings even where waveforms contain significant harmonic distortion caused by variable speed drives, UPS systems and other non-linear loads. The instrument is designed for connection via an external 5 A current transformer and supports programmable CT ratios from 5 A up to 10,000 A, allowing accurate display of primary current values.
The DMK81R1 stores minimum and maximum measured current values and incorporates a programmable changeover relay output with configurable overcurrent, undercurrent and trip delay settings. Its compact 3-module DIN rail housing makes installation simple while providing advanced monitoring and protection capabilities for industrial applications.
Key Advantages
- Accurate single-phase AC current monitoring.
- True RMS measurement for dependable readings on distorted waveforms.
- Stores present, minimum and maximum current values.
- Programmable overcurrent and undercurrent monitoring.
- Programmable changeover relay output for alarms and protection.
- Supports programmable CT ratios up to 10,000 A.
- Compact 3-module DIN rail mounting.
Key Features
- Lovato DMK digital metering instrument series.
- Single-phase digital AC ammeter.
- True RMS current measurement.
- 5 A current transformer input.
- 0.05 to 5.75 A direct measuring range.
- Programmable CT ratio from 5 A to 10,000 A.
- Present, minimum and maximum current display.
- One programmable changeover relay output.
- Automatic or manual reset selection.
- Adjustable trip delays from 0 to 900 seconds.
- 220 to 240 V AC auxiliary supply.
- LED display with DIN rail mounting.
Reliable Current Monitoring and Equipment Protection
Continuous current monitoring helps identify overloads, underloaded equipment and abnormal operating conditions before they lead to unnecessary downtime or equipment damage. By combining accurate current indication with programmable protection functions, the DMK81R1 provides both measurement and supervisory capability within a single DIN rail instrument.
Its programmable relay output can operate alarms, disconnect contactors or interface with PLCs when configured current thresholds are exceeded. Adjustable overcurrent, undercurrent and delay settings allow the instrument to be tailored to a wide variety of industrial monitoring applications.
Typical Applications
- Industrial switchboards.
- Motor protection systems.
- Motor control centres.
- Pump and fan monitoring.
- Generator supervision.
- Electrical distribution panels.
- Overcurrent and undercurrent protection.
- Industrial automation systems.
