Zero Voltage Switching (ZVS) switches when the voltage is zero and is different to Zero Current Switching (ZCS) which switches when the voltage and current are both zero; referred to as the “zero-crossing” in a sinewave. ZVS is easier to implement into relay-based devices and whilst it works well for capacitive loads (switch mode power supplies). Zero voltage switching is not suitable for inductive loads including transformers and motors. Closing a relay contact when the voltage is zero is important for switching power supplies (switch mode power supplies: SMPS) of the type found in modern IT, computer and server loads.
Perseus Remote Monitoring System
Perseus is an intelligent monitoring solution designed to easily connect to a range of devices in order to read and record data.
The range includes Perseus Monitoring, Perseus Energy and Perseus Industrial devices.
Monitoring section(s)
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Applications (40)
- Temperature & Humidity (29)
- Water Leakage Detection (27)
- Server Rack Monitoring (28)
- Hardwired Ethernet Devices (28)
- Wi-Fi Connectivity Units (8)
- Wireless Devices (13)
- Narrowband IoT Devices (4)
- GSM / LTE Comms (7)
- Battery Monitoring (7)
- Branch Circuits (2)
- Power Monitors (28)
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Security Monitors (26)
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Data Centres (7)
- Data Loggers (11)
- Data Aquisition Systems (9)
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Accessories (160)
Perseus Monitoring
The Perseus Monitoring series is designed for environmental monitoring in the IT, pharmaceutical, food and other manufacturing and process control industries, and includes support for the audit of independent ISO Quality Management Systems (QMS) and other specific professional certifications.
Perseus Energy
The Perseus Energy series is designed to measure energy consumption and savings, and develop methods to improve the efficiency of heating and cooling systems, including the production of independent reports for subsidy and grant schemes.
Perseus Industrial
The Perseus Industrial series is a range products designed for project deployment in a wide range of environments, including engineering applications and is primarily aimed at supporting industry standards. The devices can run as PLCs using customer specific LUA scripts.
Perseus devices are designed to efficiently evaluate and transmit accumulated data to a remote portal, applying logic in order to allow both simple or more complex actions to be taken.
Perseus Range Features
- Sensor alerting and environmental security of monitored areas and devices
- Combination of LAN and LTE communications in a single product
- Supports RS-485 sensors from HWg in most models, as well the Modbus RTU protocol and third-party sensors
- Perseus Energy models support the M-Bus interface
- WLD zone input for water detection
- Open API support including MQTT broker, SNMP and XML
- Customer LUA scripts available on the Perseus device
- High level security including HTTPS + Radius
- Built-in calendar and scheduler with action settings
- Connect dozens NETIO smart PowerPDUs to a single Perseus unit
Compatible Devices
The following devices connect to Perseus:
| Range | Application | Ranges | Products |
|---|---|---|---|
| HW Group | Environment Monitoring and Security | Poseidon2 | Poseidon2 3366, Poseidon2 3268, Poseidon2 4002 |
| STE2 | STE2-Lite, STE2-R2, STE2 Plus | ||
| WLD | WLD2 | ||
| SD | SD-2×1 Wire, SD-4-20mA, SD-WLD, SD-2xIn, SD-2xOut | ||
| Damocles | Damocles2, Damocles 1208, Damocles 2404 | ||
| HWg-PWR | HWg-PWR3, HWg-PWR12, HWg-PWR25 | ||
| IP Watchdog | IP Watchdog2 Industrial | ||
| Netio | Smart Power | PowerDIN | PowerDIN-4PZ |
| PowerPDU | PowerPDU 8QS, PowerPDU 8KS | ||
| PowerCable | PowerCable 101 IEC 320, PowerCable 101 UK Socket |
Sensors and Detectors
Digital Outputs (DO), Relay, Virtual Digital Output (VDO), 230V Digital Output Relay, Ext Digital Output, Digital Input (DI), Input DI (SD Counter), Phase Input, Analogue Input (AI), 1W-UNI sensors, RS-485 sensors, M-BUS sensors and WLD Sensors.
Features
Ethernet, WiFi, LTE, TLS, XML API, SNMPv3 API, IPv6, SMTP, Modbus TCP, Modbus RTU, SysLog, Data logger and MQTT.
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