ELECTRICAL CONNECTIONS
4
23
VERSAFLOW VORTEX 200
www.honeywellprocess.com34-VF-25-137 iss.1 GLO July 2019 US
4.2 Power supply
The vortex flowmeter does not require a separate power supply.
The required supply for the built-in electronics is provided via the 4...20 mA current output or the
bus connection.
4.3 Inputs / Outputs
The terminal assignment of the built-in electrical equipment is described in the standard
documentation. The signal circuits of the vortex flowmeter may only be connected to
downstream devices or circuits that satisfy the requirements of protective extra-low voltage
(PELV).
Connecting the power supply and the I/O functions
• Before connecting or disconnecting the electrical connection cables of the device, make sure
that all cables leading to the converter are isolated from the ground of the hazardous area.
This also applies to protective earth (PE) and equipotential bonding conductors (PA).
• All connecting cable conductors and shields that are not securely connected to the
equipotential grounding system of the hazardous area shall be carefully isolated from each
other and from ground (test voltage 1500 V
eff
for non-intrinsically safe cables).
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