Endress+Hauser RIA452 Manuel De Mise En Service page 83

RIA452
Pulse output
Relay
!
Transmitter power supply
Endress+Hauser
Signal characterisation:
• Signal freely scalable
Galvanic isolation towards all other circuits
• Frequency range up to 12.5 kHz
• I = 200 mA
max
• U = 28 V
max
• U = 2 V at 200 mA
low/max
• Pulse width = 0.04 up to 2000 ms
• Load min. 1 k
Signal characterisation:
• Binary, switches when the limit value is reached
Switch function: limit relay switches for the operating modes:
• Minimum/maximum safety
• Alternating pump control function
• Batch function
• Time control
• Window function
• Gradient
• Device malfunction
• Sensor malfunction
Switching threshold:
• Freely programmable
Hysteresis:
• 0 to 99%
Signal source:
• Analog input signal
• Integrated value
• Digital input
Number:
• 4 in basic unit (can be extended to 8 relays, option)
Electrical specifications:
• Relay type: changeover
• Relay switching capacity: 250 V AC / 30 V DC, 3 A
• Switch cycles: typically 10
• Switching frequency: max. 5 Hz
Galvanic isolation towards all other circuits
Note! Assignment
Mixed assignment of low and extra-low voltage circuits is not permitted for neighbouring relays.
Transmitter power supply 1, terminal 81/82 (optionally intrinsically safe):
Electrical specifications:
• Output voltage: 24 V ± 15%
• Output current: max. 22 mA (at U
• Impedance: 345
Approvals:
• ATEX
• FM
• CSA
Transmitter power supply 2, terminal 91/92:
Electrical specifications:
• Output voltage: 24 V ± 15%
• Output current: max. 250 mA (sustained short-circuit proof)
5
16 V, sustained short-circuit proof)
out
Technical data
83