Miro Aux

The Miro Auxiliary I/O Module is a peripheral device that connects to the Miro range of products to augment existing input channels with additional input and output channels (I/O) to expand the applicability of the Miro instruments. This facilitates easy and straightforward monitoring of assets at a fraction of the cost, compared to dedicated, standalone systems. A typical application would be condition monitoring of transformers where transformer condition monitoring measurements, e.g. hydrogen and moisture in oil measurements can be monitored, together with power quality measurements.

The system can accommodate multiple channels, which can be a combination of analogue and digital inputs and outputs.

Using Citrus, CHK PQ’s proprietary software, logged data from all I/O channels can be displayed together with Power Quality metrics, enabling the user to easily draw correlation amongst measurements.

Miro PQ Switch

The Miro PQ Switch is a power quality logger and analyser with a fast relay output (switch) that is triggered by user settable power quality thresholds. The thresholds for switching include voltage, Total Harmonic Distortion (THD) and frequency. The Miro PQ Switch can energise circuits, solenoids, contactors etc. to initiate follow up action. An example application is an emergency supply changeover scheme. This is where normal supply fails and the switch enables changeover to an emergency supply. When normal supply recovers, the instrument automatically switches back to normal supply. The Miro PQ Switch provides logged event information as to the cause of the switchover. Switching times are very fast, typically 10ms. The Miro PQ Switch is an intelligent device that can be configured to prevent nuisance and repetitive switching operations by progressively delaying switchback times. The fast switching ensures continued normal operation of downstream equipment, thereby eliminating system downtime.

Point Condition Monitor – Pneumatic/Electric

The Miro Points Condition Monitor (versions for pneumatic and electric points available) is a self-learning instrument that monitors electric or pneumatic point operation metrics, e.g. voltage, current, pressure and flow rate, identifies operation abnormalities and automatically alerts personnel to impending faults and failure modes, allowing early detection and resolution of issues and subsequently improving train operating hours and facilitating condition based maintenance, rather than time based.

Alerts are sent via email, and include a graphic representation of the operation which allows personnel to quickly identify specific abnormalities, and deploy field staff with necessary spares to quickly rectify the problem. All data is collected and analysed by AsMoSys, a CHK PQ proprietary database solution.

Miro PQ20 Single Phase Voltage Quality and Mains Signalling Logger and Analyser

The Miro PQ20 Single Phase Power Quality Logger and Analyser is a Class A, CAT IV 600V, weatherproof (IP66) instrument that is plugged into a wall socket outlet and measures voltages (phase to neutral and ground to neutral), THD, individual Harmonics, Flicker and Mains Signalling.The Miro PQ20 is excellent for compliance reporting and investigating customer complaints regarding voltage fluctuations, flickering lights, ground faults, and disturbances caused by mains signalling or ripple control signals.

Miro PQ35 Three Phase Power Quality Logger and Analyser

The Miro PQ35 Three Phase Power Quality Logger and Analyser is a Class A, CAT III 600V, three voltage channel (3P + N), high precision, weatherproof (IP66) instrument that offers comprehensive power quality measurements, including Voltage Sags, Swells, Interruptions, Flicker, THD, Harmonics, Interharmonics, Temperature, Frequency, Mains Signalling, Power and Energy.

Waveform and RMS captures can be generated, using various triggers, e.g. rate of change of voltage (dv/dt), sliding reference, and instantaneous voltage and current values. Alarm lists can be generated when set thresholds are exceeded. The Miro PQ35 is WIFI enabled, comes with various communications protocols and optional integrated remote cellular communications. The Miro PQ35 is the instrument of choice for comprehensive power quality ideal instrument for compliance reporting, energy audits, investigating customer complaints and fault finding.

Miro PQ41 Three Phase Power Quality Logger and Analyser

The Miro PQ41 Three Phase Power Quality Logger and Analyser is a Class S, CAT IV 600V weatherproof (IP66) instrument of choice for investigating Voltage interruptions, Flicker, THD, individual Harmonics, Frequency, Power and Energy.

Alarm lists and RMS captures can be generated when set thresholds are exceeded.

The Miro PQ41 is the ideal instrument for compliance reporting, energy audits, investigating customer complaints and fault finding.

Miro PQ45 Three Phase Power Quality Recorder & Analyser

The Miro PQ45 Three Phase Power Quality Recorder and Analyser is a Class A, CAT IV 600V, four voltage channel (3P + Ground + N), high precision, weatherproof (IP66) instrument that offers comprehensive power quality measurements, including Voltage Sags, Swells, Interruptions, Flicker, THD, Harmonics, Interharmonics, Temperature, Frequency, Mains Signalling, Power and Energy and Ground voltages.

Waveform and RMS captures can be generated, using various triggers, e.g. rate of change of voltage (dv/dt), sliding reference, and instantaneous voltage and current values. Alarm lists can be generated when set thresholds are exceeded.

The Miro PQ45 is WIFI enabled, comes with various communications protocols and optional integrated remote cellular communications.

The Miro PQ45, with the additional voltage channel is the instrument of choice for comprehensive power quality monitoring and is an ideal instrument for compliance reporting, energy audits, investigating customer complaints, ground fault investigations and fault finding.

Miro PQ45-1k Three Phase Power Quality Logger and Analyser

The Miro PQ45-1k, 1000VACrms, DC powered Three Phase Power Quality Logger and Analyser is a Class A, CAT IV 600V, four voltage channel (3P + Ground + N), high precision, weatherproof (IP66) instrument that offers comprehensive power quality measurements, including Voltage Sags, Swells, Interruptions, Flicker, THD, Harmonics, Interharmonics, Temperature, Frequency, Mains Signalling, Power and Energy and Ground voltages. It is designed especially for use in renewable energy (e.g. PV, wind) where higher rated output voltages are expected, e.g. 690VAC for wind turbine generators.

Waveform and RMS captures can be generated, using various triggers, e.g. rate of change of voltage (dv/dt), sliding reference, and instantaneous voltage and current values. Alarm lists can be generated when set thresholds are exceeded.

The Miro PQ45-1k is WIFI enabled, comes with various communications protocols and optional integrated remote cellular communications.

The Miro PQ45-1k is the instrument of choice for comprehensive power quality monitoring, and is ideal for compliance reporting and energy audits for higher rated voltages, especially for the renewable energy sector, e.g. photo voltaic, wind and tidal.

Miro-F Transformer Monitor and Logger

The IP66 rated Miro-F series of transformer monitors and loggers are designed for distribution transformer monitoring and offer comprehensive monitoring, including three phase voltages, currents, temperatures, THD and Flicker, with various secure communications protocols, e.g. TCP-IP, Dyn DNS, FTP, DNP3 and MQTT.

It has integrated remote cellular communications (3G/4G and optional Ethernet) and is ideal for large scale deployment.

Large scale network monitoring solutions utilising the Miro-F instruments can be implemented to provide network engineers with accurate data for planning, operations, maintenance and network modelling purposes. All data can collected and analysed by AsMoSys, a CHK PQ proprietary database solution.

Mirrin Load Logger

The Mirrin Multi Channel Load Logger (MLL) is a battery powered instrument that measures AC RMS load current on up to four channels. It is ideal for monitoring loads on transformers, motors, and switchboards and helps identify load profiles or trends and can be used to identify slow changing events such as long duration interruptions and outages.

The MLL is also useful as a diagnostic tool to assess load sharing on single phase circuits and load balancing on three phase systems.

The MLL incorporates a Liquid Crystal Display (LCD) which shows the maximum current measurement logged in each channel, together with the date and time stamp and is therefore ideal for use as a Maximum Demand Indicator (MDI). One Mirrin Load Logger can replace the three electromechanical MDIs that are normally used on padmount or pole top transformers. The maximum current reading is based on the instantaneous readings with a sixty-second exponential time constant.

The MLL is generally asleep and wakes up four times a second and takes a measurement by sampling the input. The aggregated measurements are committed to memory (logged). Battery life is normally six months and can be extended to nine months when used in the ‘power saving’ mode.

The Mirrin Load Logger is designed specifically for Electrical Distribution businesses to measure and monitor load and maximum demand currents in electrical networks. They are an integral part of an Electrical Distribution business to monitor and track the loading on its assets, so that maintenance, operation and network planning activities can be optimised.

The Mirrin Load logger is housed in an IP65 rated, polycarbonate weatherproof box and can be mounted using the provided backplate and magnetic feet. A soft rubber holster provides impact resistance. Real time readings can be viewed using WIFI and the Citrus Lite app (available in Android and iOS versions). Users can download data and configure the unit using WIFI or via the communications port.

 

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