Technology Solutions
Instruction Manual
Tek-Wave 4300C
www.tek-trol.com
11
4
Electrical Connection
This section covers all electrical connection requirement. Electrical connection of the device must be
carried out by trained, qualified specialists authorized to perform such work by the installation site.
WARNING
•
Connect all electrical cables when the power is switched off. If the device does
not have switch-off elements, then, overcurrent protection devices, lightning
protection and/or energy isolating devices must be provided by the customer.
•
The device must be grounded to a spot in accordance with regulations in order
to protect personnel against electric shocks.
NOTE
When using the measuring device in hazardous areas, installation must comply with
the corresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
4.1
Wiring Connection
•
4 to 20mA or Hart (two-wire system) power supply and output current signal share a two-core
shielded cable.
•
Refer to technical data for specific power supply voltage range.
•
A safety barrier should be placed between the power supply and instrument for an intrinsically
safe version.
•
Standard 2- wire cable with an outside diameter of 5...9mm is used to assures the sealing
effect of cable entry. It can be used as a feeder cable.
•
You are recommended to use screened cables in electromagnetic Connection cable with
special earth wire used as feeder cable.
Fig 13: Two-Wire System Wiring Diagram
•
RS485/MODBUS power supply and MODBUS signal line respectively use a shielded cable.
•
Refer to the technical data for the specific power supply voltage range.
+ -
+
-
(
4 20
)
~
m A
1 2