Rail mounting power quality analysers
Janitza UMG 104
Janitza UMG 104
1
Energy measuring equipment and power analysers for energy management and power quality monitoring with real-time diagnosis of electrical energy supply.
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Existing functions
Main features
Rated voltage L-N, AC
277 V
Rated voltage L-L, AC
480 V
Overvoltage category
300 V CAT III
Auxiliary voltage
95 ... 240 V AC; 135 ... 340 V DC
Three wire (L-N, L-L)

+

Four wire (L-N, L-L)

+

Quadrants
4
Sampling frequency 50/60 Hz
20 kHz
Measurement points per seconds
20000
Uninterupted measurement

+

Measurement results per seconds
5
Residual current measurement

-

Harmonics V/A
1st ... 40th
Distortion factor THD-U in %

+

Distortion factor THD-I in %

+

Unbalance

+

Positive / negative / zero sequence component

+

Present flicker strength

-

Short-/long-term flicker

-

Transients
Short-term iterruptions, events

-

Accuracy V / A
0,2 %
Effective power class
0,5 (.../5 A)
Operating hours counter

+

Weekly timer

-

Digital inputs
2
Digital / pulse output
2
Current measurement channel
4
Temperature input

+

Integrated logic
Comparator
Minimum and maximum values for memory

+

Memory size for onboard recording
4 MB Flash
Number of memory values
156 k
Clock

+

Error / event recorder function

-

Software
GridVis-Basic
Additional features
Interfaces
RS232

+

RS485

+

USB

-

Profibus DP

-

M-Bus

-

Ethernet

-

Webserver / email

-

Prototcols
Modbus RTU

+

Modbus gateway

-

Profibus DP V0

-

Modbus TCP/IP, Modbus RTU over Ethernet, SNMP

-

BACnet (optional)

-

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