Bender PEM533, Manual

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13 PEM533_D00013_00_M_XXEN/06.2015
3. Device description
3.1 Area of application
For humans, electric current is not immediately visible. Universal measuring devic-
es for monitoring electrical parameters are used wherever energy consumption,
performance measurements or the quality of the supply voltage are to be made vis-
ible.
The PEM533 is suitable for monitoring
 
power generation systems (PV systems, CHPs, hydro power and wind power
plants)
 
energy-intensive equipment and parts of installation
 
sensitive equipment
3.2 Device features
The universal measuring device PEM533 for power quality and energy manage-
ment is characterised by the following features:
 
Accuracy class in accordance withIEC 62053-22: 0.5 S
 
Password protection
 
9 programmable setpoints
 
LED pulse outputs for active and reactive energy
 
Modbus RTU communication via RS-485 interface
 
6 digital inputs
 
2 digital outputs
 
Power and current demands for particular time frames
 
Peak demands with timestamps
 
Individual, harmonic components of current and voltage up to the 31
st
har-
monic
 
Max and Min values
 
Measured quantities
– Phase voltages
U
L1
, U
L2
, U
L3
in V
– Line-conductor voltages U
L1L2
, U
L2L3
, U
L3L1
in V
– Phase currents I
1
, I
2
, I
3
in A
– Neutral current (calculated) I
4
in A
– Frequency f in Hz