- Vibration Monitoring
- PLC & I/O Cards
- Industrial Communications
- Automation Accessories
- Controllers & Data Acquisition
- AC Drives
- Isolator & Barrier
- Industrial Computers
- Encoders
- Safety Switches & Guard Locking
- Automation Software
- HMI Displays
- Motor Soft Starters
- Servo Drives
- CCTV & Security
- Robotics
- Pneumatic Cylinders
- Machine Vision
Brand: Janitza
Janitza UMG 96RM Panel Power Analyser RS485 Modbus
Description
The Janitza UMG 96RM is a compact panel-mounted power analyser in a 96 x 96 mm front frame, used to measure and display voltage, current, power and energy in low-voltage three-phase networks. It is the basic device of the UMG 96RM series and has an RS485 Modbus RTU interface for connection to energy management and SCADA systems.
An accurate multifunction meter for the panel front
The device samples at 21.33 kHz at 50 Hz and measures voltage to 0.2 % accuracy and active energy to class 0.5 (and 0.5S with ../5 A transformers), as listed in the datasheet. Voltage harmonics are recorded up to 2.5 kHz and the unit supports energy metering with seven tariffs in four quadrants, according to Janitza. Two semiconductor outputs can be used for energy pulses up to 50 Hz or as switching outputs, and the display has a backlight rated for 40,000 hours.
It fits a standard 92 x 92 mm panel cut-out, needs only 42 mm of depth behind the front frame, and weighs 265 g. The front is IP40, or IP54 with the optional seal, and the rear is IP20. Two supply options cover 90 to 277 V AC / 90 to 250 V DC and 24 to 90 V AC/DC, so it can be powered from the measured circuit or from a control supply.
Technical specifications
| Parameter | Specification |
|---|---|
| Model | Janitza UMG 96RM basic device (data sheet 02/2019) |
| Supply options | 230 V option: 90 to 277 V AC (50/60 Hz) or 90 to 250 V DC, max. 7.5 VA / 4 W; 24 V option: 24 to 90 V AC/DC, max. 3.5 VA / 2 W |
| Voltage inputs | Three-phase 4-wire up to 277 V / 480 V (±10 %); 3-wire IT up to 480 V; metering range L-N up to 300 Vrms, L-L up to 520 Vrms; CAT III 300 V |
| Current input | Rated 5 A, metering range 0 to 6 A rms; overload 120 A for 1 s; resolution 0.1 mA |
| Sampling rate | 21.33 kHz (50 Hz), 25.6 kHz (60 Hz) per channel |
| Frequency range | 45 to 65 Hz |
| Accuracy classes | Voltage and current 0.2; real power and energy 0.5 (0.5S per IEC 62053-22); reactive 1; frequency 0.05 (IEC 61557-12) |
| Harmonics | Voltage harmonics class 1 (IEC 61000-4-7), up to 2.5 kHz |
| Outputs | 2 digital outputs, semiconductor relay; max. 33 V AC / 60 V DC, 50 mA; pulse output up to 50 Hz |
| Serial interface | RS485 Modbus RTU slave, 9.6 to 115.2 kbps |
| Dimensions / weight | Front 96 x 96 mm; depth approx. 42 mm behind the frame (device 42 x 97 x 100 mm); 265 g |
| Panel cut-out | 92 +0.8 x 92 +0.8 mm |
| Protection | Front IP40 (IP54 with seal); rear IP20; protection class II |
| Operating conditions | -10 to +55 °C (K55); 0 to 75 % RH; up to 2,000 m; pollution degree 2 |
Choosing the right UMG 96RM variant
The basic device has no Ethernet and no digital input. Janitza offers related variants with Ethernet, memory or extra communication, so confirm the interface you need before ordering. Use external 5 A or 1 A current transformers for higher currents and protect the supply as specified in the datasheet. For heavier power quality recording look at the Janitza UMG 508, and browse controllers and data acquisition.
Documents and quotation
The attached file is Janitza’s English data sheet for the UMG 96RM basic device (document 2.040.172.0). Send us the supply voltage option, CT ratio and network interface and we will prepare a quotation.
Datasheets & Documents
- Datasheet Janitza UMG 96RM basic device datasheet (02/2019) Download
Reviews (0)
About brand
Energy managers and electrical engineers know Janitza for the UMG series of measuring devices found in main distribution boards and substations. The German company, founded in 1986 and based in Lahnau, concentrates on energy measurement and power quality monitoring. Seven Star LLC lists the Janitza UMG 508 and supplies Janitza power quality analyzers and their accessories to plants and building operators in Oman and the GCC.
Janitza UMG 508 and the UMG series
The UMG 508 is a panel-mounted power analyzer with a color graphic display. It measures the electrical quantities of a three-phase system continuously, records harmonics up to the 40th order and supply events in its own memory, and passes data to energy management or SCADA software over Ethernet and RS485. Modbus and Profibus DP are among its protocols, and Janitza GridVis software is used to set it up and read it out.
Ordering Janitza devices: what we need
Give the Janitza item number or the full type from the rating label, since one UMG model can be made in more than one supply voltage version. Add the auxiliary voltage in the panel, the measured system voltage, current transformer secondary (1 A or 5 A), the protocol your software uses, and any current transformers or residual current sensors to be quoted with it.
Browse Janitza products by category: Controllers & Data Acquisition.
Related products
Frequently Asked Questions
What is the UMG 96RM used for?
It measures and displays voltage, current, power and energy in low-voltage three-phase networks and reports them over RS485 Modbus RTU to energy management or SCADA systems.
What are the supply voltage options?
A 230 V option for 90 to 277 V AC or 90 to 250 V DC, and a 24 V option for 24 to 90 V AC or DC.
What panel cut-out does it need?
A square cut-out of 92 mm by 92 mm (+0.8 mm), with a 96 x 96 mm front frame.
How accurate is the measurement?
The datasheet lists 0.2 for voltage and current and 0.5 for real power and energy (0.5S for energy per IEC 62053-22).
Does the basic device have Ethernet?
No. The basic UMG 96RM has an RS485 Modbus RTU interface and two digital outputs; other series variants add other interfaces.
Reviews
There are no reviews yet.