Technical specifications of the KFD0-SCS-Ex1.55
| Main Features | ||
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| Signal type | Analog input/analog output | |
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Parameters related to functional safety |
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| Safety Integrity Level (SIL) | SIL 2 | |
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Supply |
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| Nominal voltage | < 30 VDC, loop powered | |
| Power dissipation | 0.2 W | |
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Control chain |
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| Connection | terminals 8-, 9+ | |
| Voltage | Max 30V DC | |
| Current | 4 ... 20 mA (quiescent current < 0.5 mA) | |
| Power dissipation | 150 mW at 20 mA and U in < 24 V | |
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Excitation circuit |
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| Connection | terminals 1+, 2 / 3- | |
| Voltage | ≥ 16 V for supply voltage > 21 V | |
| Current | 4 ... 20 mA (linear transmission 1 ... 22 mA) | |
| Load | ≤ 800 Ohm (at 20 mA) | |
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Transmission characteristics |
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| Voltage drop | see note | |
| Deviation |
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After calibration | Linearity ≤ ±80 µA, dependent on load and voltage at 20°C (68°F) |
| The influence of ambient temperature | < 0.5 μA/K | |
| Damping | approx. 3 dB | |
| Rise time | ≤ 20 µs at 0 ohms, ≤ 600 µs at 800 ohms load | |
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Galvanic isolation |
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| Input, output | safe electrical insulation in accordance with IEC/EN 60079-11, peak voltage 375 V | |
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Indicators/settings |
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| Marking | marking space at the front | |
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Compliance with the directive |
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| Electromagnetic compatibility |
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Directive 2014/30/EU | EN 61326-1:2013 (industrial premises) |
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Correspondence |
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| Electromagnetic compatibility | NE 21:2007 | |
| Degree of protection | IEC 60529:2001 | |
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Environmental conditions |
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| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) | |
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Mechanical characteristics |
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| Degree of protection | IP20 | |
| Connection | screw terminals | |
| weight | approx. 120 g | |
| Dimensions | 20 x 124 x 115 mm (0.8 x 4.9 x 4.5 in) (W x H x D), case type B2 | |
| Installation | on a 35 mm DIN rail in accordance with EN 60715:2001 | |
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Data for use in hazardous areas |
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| EU Type Examination Certificate | PTB 02 ATEX 2064 | |
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Marking |
 II (2)G [EEx ib] IIC
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Voltage | 23.1 VDC |
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Current | 28 mA |
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Power | 0.647 W |
| Supply |
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Maximum safe voltage | 253 V (Caution! Nominal voltage may be lower.) |
| Certificate | PF 11 CERF 0902 X | |
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Marking |
II 3G Ex nA IIC T4 Gc
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| Galvanic isolation |
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Input, output | safe electrical insulation in accordance with IEC/EN 60079-11, peak voltage 375 V |
| Compliance with the directive |
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Directive 2014/34/EU | EN 60079-0:2012+A11:2013, EN 60079-11:2012, EN 60079-15:2010 |
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International certificates |
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| FM approval | FM-approved device available upon request | |