CS Instruments VA 550 - Signal Circuits and Outputs

Technical data
VA 550 English V1.21 Page 10 of
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4.1 Signal circuits
4.1.1 Modbus
• According Standard EIA/TIA-485
4.1.2 Current output
4.1.2.1 Aktive
• Galvanically isolated
• 4 … 20 mA
• R
L
< 500 Ohm
4.1.2.2 Passive
• Galvanically isolated
• 4 … 20 mA
• R
L
< 500 Ohm
• Vin 12-36Vdc
4.1.3 Pulse
• Galvanically isolated (dry contact)
• Passive: 48Vdc , 500 mA
• Max. pulse output freq. 50Hz
4.1.4 Alarm
• Galvanically isolated
• Max. 48Vdc, 500mA