ZES ZIMMER LMG450, User Manual

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Z E S ZIMMER Electronic Systems GmbH Chapter 13
255
13.3 Measuring channels
13.3.1 Sampling
The sampling is done at all channels with about 50kHz per channel.
13.3.2 Ranges
Voltage ranges
Rated range value / V 6 12.5 25 60 130 250 400 600
Measurable TRMS value / V 7.2 14.4 30 60 130 270 560 720
Permissible peak value / V 12.5 25 50 100 200 400 800 1600
Overload capability 600V continuously, 1500V for 1s
Input resistance 1M
Ω
, 10pF
Capacitance against earth 280pF
Common mode error (measured with 100V common mode signal at different frequencies in the
6V range without HF-Rejection filter):
50Hz 0V
5kHz <0.01V
10kHz <0.02V
20kHz <0.05V
100kHz <0.12V
Common mode error (measured with 100V common mode signal at different frequencies in the
6V range with HF-Rejection filter):
50Hz 0V
5kHz <0.01V
10kHz <0.02V
20kHz <0.01V
100kHz 0V
Note!
The ‘Measurable TRMS value’ is the biggest TRMS value which can be measured. That
does not mean that it is allowed to measure with that value, if any security standards
define other values!
Current ranges
Rated range value / A 0.6 1.2 2.5 5 10 16
Measurable TRMS value / A 1.3 2.6 5.2 10 18 18
Permissible peak value / A 1.875 3.75 7.5 15 30 60
Overload capability 18A continuously, 50A for 1s, 150A for 20ms
Input resistance Ri 2m
Ω
Capacitance against earth 10pF