Electrical connection
Proline Promag L 400 HART
38
Hauser
4. Connect the cable in accordance with the terminal assignment (
5. Tighten the cable strain relief as per the tightening torque specifications (
6. Firmly tighten the cable glands.
7. Reverse the procedure to reassemble the sensor.
7.2.3
Ensuring potential equalization
!
CAUTION
Electrode damage can result in the complete failure of the device!
►
Make sure that the fluid and sensor have the same electrical potential.
►
Pay attention to internal grounding concepts in the company.
►
Pay attention to the pipe material or grounding.
Connection examples for standard situations
Metal, grounded pipe
A0016315
å
12
Potential equalization via measuring tube
Connection example in special situations
Unlined and ungrounded metal pipe
This connection method also applies in situations where:
• The customary potential equalization is not used
• Equalizing currents are present
DN
300
£
DN
350
³
A0016317
å
13
Potential equalization via ground terminal and pipe flanges
Ground cable
Copper wire, at least 6 mm
2
(0.0093 in
2
)
