| Technology |
NAMUR |
| Specification |
NAMUR DC switching amplifier (IEC 60947-5-6) |
| Signal type |
binary, current input for NAMUR sensors |
| Number of inputs |
4 |
| Connection technology |
2-wire |
| Open circuit voltage |
typ. 8.2 V DC |
| “0” signal current |
≤ 1.2 mA |
| “1” signal current |
≥ 2.1 mA |
| Switching hysteresis |
typ. 350 µA |
| Short-circuit current |
typ. 7.8 mA |
| Fault detection |
I ≤ 200 µA (cable break), I ≥ 7.0 mA (short circuit) |
| Max. switching frequency |
5 kHz (duty factor 50 %) |
| Internal resistance |
according to I/V curve IEC 60947-5-6 |
| Distributed clocks |
– |
| Supply voltage electronics |
24 V DC (via power contacts) |
| Current consumption E-bus |
typ. 50 mA |
| Electrical isolation |
500 V (E-bus/field potential) |
| Special features |
integrated reverse polarity protection |
| Weight |
approx. 60 g |
| Operating/storage temperature |
0…+55 °C/-25…+85 °C |
| Relative humidity |
95 %, no condensation |
| Vibration/shock resistance |
conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission |
conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. |
IP20/variable |
| Pluggable wiring |
for all ESxxxx terminals |
| Approvals/markings |
CE, UL, ATEX, IECEx, cFMus |
| Ex marking |
ATEX:
II 3 G Ex nA IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
cFMus:
Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx ec IIC T4 Gc |
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