Siemens SITRANS DA400, Руководство по эксплуатации

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Technical data
9.1 Device technical data
SITRANS DA400 for material flow monitoring with protection against explosion
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Operating Instructions, 09/2007, A5E00841152-01
For connection to approved intrinsically safe electrical circuits with:
•
Maximum voltage U
i
≤ 30 V
•
Maximum short circuit current I
i
≤ 100 mA
•
Maximum power P
i
≤ 1 W
•
Internal capacity C
i
≤ 11 nF
• Internal inductance L
i
≤ 70 µH
Alternative: Universal input 24 V digital signal
• Binary inputs
Clamps 56 and 57
Clamps 66 and 67
Clamps 76 and 77
Clamps 86 and 87
•
Input resistance
> 19 kΩ
• Signal level Low ≤ 4.5 V or open
•
Signal level High
> 7 V
•
Hysteresis
> 1 V
For connection to approved intrinsically safe electrical circuits with:
•
Maximum voltage U
o
≤ 30 V
• Maximum short circuit current I
o
≤ 100 mA
•
Maximum power P
o
≤ 1 W
• Internal capacity C
i
≤ 11 nF
•
Internal inductance L
i
≤ 70 µH
Alternative: Closing contact universal input
•
Switching contacts, closing
Clamps 55 and 58
Clamps 65 and 68
Clamps 75 and 78
Clamps 85 and 88
For connection to closing contact
Maximum values:
•
Maximum voltage U
o
≤ 10 V
•
Maximum current I
o
≤ 1 mA
• Maximum power P
o
≤ 5 mW
•
External inductance L
o
100 mH 5.00 mH 1.00 mH 0.20 mH
• External capacity C
o
0.57 µF 0.79 µF 1.08 µF 1.58 µF