Endress+Hauser dosimass, Руководство по эксплуатации

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Technical data Dosimass
34 Hauser
10.1.4 Output
Output signal Pulse output:
Passive, max. 30 V DC/25 mA, pulse value and pulse polarity can be selected,

pulse width adjustable (0.05 ms to 1 s).
!
Note!
The device may only be connected to SELV, PELV or CLASS 2 circuits.
Signal on alarm Pulse output

behavior can be selected
Transistor status output not conducting in the event of a fault/notice (depending on setting) or if
the power supply fails
Switching output Status output:
Passive, max. 30 VDC/25 mA
!
Note!
The device may only be connected to SELV, PELV or CLASS 2 circuits.
Low flow cutoff Switch point for low flow cutoff selectable.
Galvanic isolation The power supply and outputs are galvanically isolated from one another.
10.1.5 Power supply
Electrical connections

ä
12 ff.
Supply voltage 24 VDC nominal voltage (20 to 30 VDC)
!
Note!
• The power supply may not exceed a maximum short-circuit current of 50 A.
• The device may only be connected to SELV, PELV or CLASS 2 circuits.
Potential equalization No special measures are necessary for potential equalization. For devices for the Ex area, see the
notes in the Ex-specific supplement to these Operating Instructions.
Cable connection Lumberg plug (RSE8, M12 × 1) for power supply and signal outputs
Cable specification Every suitable cable with a temperature specification at least 20 °C (68 °F) higher than the ambient
temperature in the application. We recommend you use a cable with a temperature specification of
+80 °C (+176 °F).
Power consumption Max. 4.3 W
Switch-on current: max. 1A (< 6 ms)
Power supply failure Lasting min. 20 ms:
All sensor and measuring point data remain in the DAT