ELECTRICAL CONNECTIONS
3
23
OPTIWAVE X400
www.krohne.com
10/2017 - 4006413501 - AD NEPSI OPTIWAVE x400 R01 en
•
If you connect electrical wires to the terminals in the dustproof terminal compartment, use
approved flameproof cable glands (M20×1.5 or
½
NPT). The cable glands must have a test
certificate that agrees with GB 12476.1 and GB 12476.2 with an IP6X degree of protection.
Obey the instructions given on the test certificates. Make sure that that the tightening
capacity of the cable gland is applicable to diameter of the electrical wire.
Obey instructions that follow:
•
Use the electrical connection procedure in the Handbook.
•
The electrical wiring must agree with the applicable standards (for more data, refer to
General notes
on page 10).
•
Do not remove more than 6 mm / 0.2
¨
of insulation from the electrical wire.
•
Put the electrical wires in position and safely attach them to prevent damage. The electrical
wires must also be a sufficient distance from hot surfaces.
•
If it is necessary, make sure that the electrical wire insulation gives good protection from
corrosion.
•
Make sure that the device is connected to a PELV (protective extra-low voltage) circuit.
•
Make sure that electrical wires for the converter are isolated from the ground of the
hazardous area. This data is also applicable to the equipotential bonding conductors (PE).
•
Make sure that unused electrical wires and shields are safely connected to the ground
potential of the hazardous area. If this is not possible, make sure that each of the unused
electrical wires are safely isolated (other electrical wires, ground etc.) and rated for a test
voltage
≥
1500 V
RMS
.
Load resistor
•
Connect the load resistor to the positive terminal of the power supply.
•
Ground the negative connection.
•
If the load resistor has to be connected to the negative terminal, the loop resistance must not
be more than 250 ohms.
3.6.3 Supply voltage
CAUTION!
Do not ground the positive connection.
Current output terminals
Minimum voltage at output
terminals [VDC]
Maximum voltage at output
terminals [VDC]
(Input)
16
1
36
1
1
Minimum voltage at output terminals for a current output of 21.5 mA
