Technical specifications of the KFD2-SCD2-Ex2.LK
| Main Features | ||
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| Signal type | Analog output | |
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Parameters related to functional safety |
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| Safety Integrity Level (SIL) | SIL 2 | |
| Systematic ability (SC) | SC 3 | |
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Supply |
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| Connection | Power bus or terminals 14+, 15- | |
| Nominal voltage | 19 ... 30 V DC current | |
| pulsation | ≤ 10% | |
| Rated current | ≤ 45 mA at 24 V | |
| Power dissipation | ≤ 1 W at 20 mA and 500 ohm load | |
| Power consumption | ≤ 1 W | |
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Entrance |
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| Connection side | control side | |
| Connection | terminals 7-, 8+, (9+); 10-, 11+, (12+) | |
| Input signal | 4 ... 20 mA, limited to approx. 30 mA | |
| Input voltage | open-loop voltage of the control system ≤ 30 V | |
| Voltage drop | approx. 6 V at 20 mA | |
| Input impedance |
Field wiring open circuit: > 100 kOhm field wiring < 50 ohms: > 100 kohms when using terminals 1, 2 and 4, 5 |
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Exit |
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| Connection side | side of the field | |
| Connection |
terminals 1+, 2-; 4+, 5- terminals 3+, 2-; 6+, 5- (without short circuit detection) |
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| Voltage | ≥ 13 V at 20 mA | |
| Current | 4 ... 20 mA | |
| Load |
100...650 Ohm, for terminals 1, 2; 4, 5 0 ... 550 Ohm, for terminals 2, 3; 5, 6 |
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| pulsation | 20 mV rms | |
| Line fault detection | open circuit, load > 100 kOhm, short circuit, load < 50 Ohm | |
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Fault indication output |
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| Output type | open collector transistor (internal bus fault) | |
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Transmission characteristics |
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| Deviation |
at 20 °C (68 °F), 4 ... 20 mA < 0.1% of full scale, including nonlinearity and hysteresis |
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The influence of ambient temperature | < 2 µA/K (-20...70 °C (-4...158 °F)); < 4 µA/K (-40...-20 °C (-40...-4 °F)) |
| Frequency range |
from the field side to the control side: bandwidth with 0.5 V pp signal 0 ... 3 kHz (-3 dB) control side field side: bandwidth with 0.5 V pp signal 0 ... 3 kHz (-3 dB) |
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| Rise time | from 10 to 90% ≤ 10 ms | |
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Galvanic isolation |
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| Input, output | Basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff. | |
| Input/Power | Basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff. | |
| Output/Power | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff. | |
| Input/Input | functional insulation, rated insulation voltage 50 V AC | |
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Indicators/settings |
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| Display elements | LEDs | |
| Marking | space for an adhesive label on 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 21:2017 EN 61326-3-2:2018 |
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| Degree of protection | IEC 60529 | |
| Protection against electric shock | UL 61010-1:2012 | |
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Environmental conditions |
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| Ambient temperature | -40 ... 70 °C (-40 ... 158 °F) | |
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Mechanical characteristics |
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| Degree of protection | IP20 | |
| Connection | screw terminals | |
| weight | approx. 135 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 | BAS 00 ATEX 7240 X | |
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Marking |
 II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
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Exit | Ex ia, Ex iaD |
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Voltage | 25.2 V |
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Current | 93 mA |
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Power | 585.3 MW |
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Internal capacity | 1.05 nF |
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Internal inductance | 0 |
| Supply |
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Maximum safe voltage | 250 V (Caution! Nominal voltage may be lower.) |
| Entrance |
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Maximum safe voltage | 250 V (Caution! Nominal voltage may be lower.) |
| Certificate | FIDI 22 ATEX 0002X | |
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Marking |
II 3G Ex ec 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 |
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Output/Power | 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 IEC 60079-0:2018, EN 60079-11:2012, EN IEC 60079-7:2015+A1:2018 |
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International certificates |
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| UL approval | E106378 | |
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Control drawing | 116-0345 (cULus) |
| IECEx certification |
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IECEx Certificate | IECEx BAS 04.0014X |
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IECEx marking |
[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I Ex ec IIC T4 Gc |