16 Technical specifications
16.TECHNICAL SPECIFICATIONS
16.1.Isolated inputs
16.1.1.General characteristics |
|
Number of inputs per module: 6 |
|
Impedance: |
|
Impedance > 25 M for ranges 1 V |
|
Impedance = 1 M for any other range |
|
Maximum possible voltages: |
|
Between a measure channel and the ground: | + 500 V DC or 500 V AC 50 Hz |
Between the 2 terminals of a channel: | +500 V DC or 500 V AC 50 Hz |
Category of installation: overvoltage category: III 600V |
|
Isolation: between the ground and the measure channel: >100 M at 500 V DC.
Spurious common mode voltages: test according to EN 61143
Types of measures :
Voltage, current (by external shunt)
Frequency
Thermocouple probe J, K, T, S, B, N, E, W5
16.1.2.Voltage recording |
|
|
Maximum range | 1000 V | |
Minimum range | 1 mV | |
Offset | Adjustment of the centre by 1/5000 of the full scale or by | |
Maximum offset | + 5 range (except 1000V) | |
Accuracy | 0.1% of the full scale, 10 V, 0.1% of the zero offset | |
Offset drift | 100 ppm/ C, 1 V/ C | |
Class C index | see appendix |
|
16.1.3.RMS recording |
|
|
RMS calculation by the software
Resolution | 200 s |
Maximum frequency | 500 Hz |
Crest factor | 2.2 and 600 V max instant. |
Accuracy | 1 % (wave signal) |
Response time | typical. 100 ms |
Measurable max. voltage | 424 V AC |
Page 1