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Universal Measuring Device UMG 500A
Factory presettings
• Current transformer:
5000A/5A
• Voltage transformer factor
1.0
• Measuring function
voltage
• Measurement phase
L1
• Device address (RS485)
1
• Measuring period for real power mean value
900 seconds
• Analogue output
Function
current
Phase
L1
Scaling
20 mA = 2000 A
• Relay output
Function
current
Phase
L1
K1 (min.) switching threshold
0 A
K2 (max.) switching threshold
9999 A
• Date and time
actual time (without automatic changing summer /winter)
Maintenance note
The built-in batteries must be changed by trained staff after a period of about 5 years. The batteries have a design life
of approx. 8 to 10 years.
Batteries: 2 off
Lithium batteries, voltage 3 V, diameter 12.5 mm, 2.5 mm thick, Panasonic, order code BR-1225
Special versions
The following special versions are available:
Standard
Option
• Current transformer inputs
5 A
1 A
• Voltage display
9999 V
“kV” + “3-wire”: up to 99.99 kV
“kV”: up to 30.00 kV
• Real and apparent power display
9999 kW/kVA/kWh
99.99 MW/MVA/MWh
• Analogue output
0 .. 20 mA
4 .. 20 mA
• Wiring of voltage measurement inputs
4-wire
3-wire
Power measurement in “Aron”
connection and display of
current in L2.
If used in conjunction with an external adapter transformer the device is also suitable for the following voltages:
• 525, 600 and 1000 V
