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Manufacturer information
Janitza electronics has worked in energy measurement technology for 40 years, developing and manufacturing its full portfolio in Germany. The brand specialises in energy analyzers and power quality analyzers, residual current monitoring (RCM) devices and current transformers, used in data centres, industry, buildings and utility networks. Janitza's strength is measurement accuracy — Class C energy metering and CL0.5 current transformers deliver data precise enough for billing, compliance reporting and grid diagnostics.
Product description
The Janitza UMG 604-PRO is a DIN-rail power quality analyser for three-phase measurement, energy metering, and network monitoring in commercial and industrial installations. It measures three-phase 4-conductor systems up to 277/480V (L-L to 1000 Vrms), samples at 20 kHz per phase for harmonics and transient capture (>50µs), and meters active energy to Class 0.5S (with /5A CT) at ±0.2% voltage / ±0.4% power uncertainty. Connectivity is broad: RS485 and RS232 (Modbus RTU master/slave), an Ethernet RJ45 port acting as a Modbus gateway with embedded web server (Modbus/TCP, TCP/IP, SNMP, NTP, FTP, email), and optional Profibus. It carries 2 digital inputs, 2 digital outputs, and a temperature-measurement input (PT100/PT1000/KTY83/KTY84), with a built-in backlit LCD. Rated IP20, Protection Class II, 35mm DIN-rail mounted, for weather-protected use across −10 to +55 °C. Available in 230V, 90V, or 24V supply variants.