LRF-3000P Ultrasonic flowmeter
- 9 -
3.3 Connecting electrical cables
Warning!
Signal cables and power cables must be connected while the power is off.
Warning!
As specified, the meter must be connected to the protective ground terminal to protect operators
from electric shock.
Warning!
As for the meters to be used in hazardous areas, please pay attention to the safety and technical
prompts as specified in the professional explosion-proof instructions.
Caution!
Please strictly obey the local occupational health and safety regulations. Only trained personnel are
allowed to operate on electrical equipment.
Warning!
Voltage difference is not allowed between the measuring transducer and the housing or protective
ground cable of the electronic system.
The measuring transducer must be well grounded according to related standard DESIGN CODE OF
INSTRUMENT GROUNDING (HT/T 20513-2014).
The ground conductor shall not transmit any disturbance voltage.
The ground conductor is not allowed to connect other electrical equipment.
