janitza UMG 801, User Manual

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UMG 801 www.janitza.de
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Digital outputs
4 digital outputs, solid state relays, not short-circuit proof.
Switching voltage Max. 60 V DC
Switching current max. 50 mAeff DC
Response time approx. 500 ms
Digital output (energy pulses) max. 20 Hz
Digital inputs
4 digital inputs, solid state relays, not short-circuit proof.
Maximum counter frequency 20 Hz
Input signal applied 18 ... 28 V DC (typically 4 mA)
Input signal not applied 0 .. 5 V DC, current less than 0.5 mA
Residual current measurement (RCM)
Nominal current 30 mAeff
Measurement range 0 .. 40 mAeff
Operating current
50 µA
Resolution 1 µA (color graphic display 0.01 A)
Crest factor
1.414 (relative to 40 mA)
Load 4
Ω
Overload for 20 ms 50 A
Overload for 1 s 5 A
Permanent overload 1 A
Norm
IEC/TR 60755 (2008-01), Type A, Type B and B+
(via corresponding current transformers)
The device has, optionally, 4 multifunction channels, for use as
·Residual current measuring inputs and/or temperature measuring inputs (mixed),
·Additional system inputs (L1, L2, L3; N)
Temperature measurement
Update time 1 s
Total load (sensor and cable)
max. 4 k
Ω
Cable
Up to 30 m (32.81 yd) not shielded
Greater than 30 m (32.81 yd) shielded
Suitable sensor types
KTY83, KTY84, PT100, PT1000