Technical data KFD0-CS-Ex2.52
| Main Features | ||
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| Signal type | Analog input | |
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Supply |
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| Nominal voltage | 4...24 VDC, loop powered | |
| Power dissipation | 150 mW | |
| Power consumption | 1 W | |
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Control chain |
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| Connection | terminals 12-, 11+; 8-, 10-, 9+ | |
| Voltage | 4 ... 24 V DC for 4 V < U in < 24 V: 0.97 x U in - (85 x current in A) - 1.3 | |
| Current | 4 ... 20 mA | |
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Excitation circuit |
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| Connection | terminals 1+, 2-; 4+, 5- | |
| Transmission range |
current: 4 ... 24 mA voltage: 4 ... 24 V DC |
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Transmission characteristics |
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| Accuracy | 0.1% | |
| Deviation |
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After calibration |
±20 µA incl. calibration, linearity, hysteresis, and load variations at 20 °C (68 °F), U in ≤ 20 V +20 µA/-50 µA incl. calibration, linearity, hysteresis, and load variations at 20 °C (68 °F), 20 V < U in < 24 V |
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The influence of ambient temperature |
± 1 µA/K (0 ... 50 °C (32 ... 122 °F)), U in ≤ 12 V ± 2 µA/K (0 ... 60 °C (32 ... 140 °F)), Uin ≤ 18 V ± 5 µA/K (-20 ... 60 °C (-4 ... 140 °F)), Uin ≤ 24 V |
| Rise time | ≤ 10 ms at 4 ... 20 mA and 250 Ohm 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 21:2011 | |
| Degree of protection | IEC 60529:2001 | |
| Protection against electric shock | UL 61010-1:2012 | |
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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. 100 g | |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 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 | BASEEFA 03 ATEX 0141 | |
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Marking |
 II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C ≤ T ambient ≤ 60 °C), [circuit(s ) in zone 0/1/2]
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Voltage | 25.2 VDC |
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Current | 0 mA |
| Exit |
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Maximum safe voltage | 253 V rms (Note: Nominal voltage may be lower.) |
| Certificate | TUV 99 ATEX 1499 X | |
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Marking |
II 3G Ex nA II T4 [device in zone 2]
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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 IEC 60079-0:2018+AC:2020, EN 60079-11:2012, EN 60079-15:2010 |
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International certificates |
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| FM approval |
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Control drawing | 116-0129 |
| UL approval |
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Control drawing | 116-0173 (cULus) |
| IECEx certification |
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IECEx Certificate | IECEx BAS 08.0059 |
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IECEx marking | [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I |