Ametek Drexelbrook Universal Lite 509-1 Series Installation And Operating Instructions Manual page 16

509-1X Series Universal Lite
2.2 Installation
Guidelines
(continued)
RUN APPROXIMATLY A 14 GA.
W IRE .ROM GREEN GROUND
(EARTH) SCREW TO THE
CHOSEN GROUNDING
(EARTHING) METHOD 1,2,3,OR 4.
NOTE: BE SURE THAT
GROUNDING METAL IS
COMPATIBLE WITH PROCESS
MATERIAL
1
This is a sensing element ground reference and possibly different from an electrical power ground
TM
G. For non-metallic vessels without Drexelbrook self-
grounding sensing elements, choose one of the ground-
ing recommendations shown in Figure 2-6.
METAL, PIPE OR TUBING PARALLEL
AND RELATIVELY CLOSE TO PROBE.
GROUND ROD MUST BE
COMPATIBLE WITH PROCESS
MATERIAL
PROBE
CONDULET
TOP VIEW
Level
Sensor
TO CONDULET
GROUND SCREW
Figure 2-6
Providing a Ground Reference
GROUNDROD
GROUNDING CABLE
1/4 INCHSTAINLESS
STEEL GROUND WIRE
WITH WEIGHT
GROUND
CLAMP
TO CONDULET
GROUND SCREW
TO CONDULET
GROUND SCREW
NON
METALLIC
TANK
1
10
!
METALLIC OBJECT
USE .LANGE OR METAL
ORI.ICE PLATE. USE ONLY I.
PROCESS MATERIAL IS
GREATER THAN 1000
uMHOS/CM. SUCH AS ACIDS
AND CAUSTIC
" METAL PIPE - METAL PIPING
ENTERING THE TANK CAN BE
USED AS A GROUND. USE
ONLY I. PROCESS MATERIAL
HAS A CONDUCTIVITY
GREATER THAN 1000 uMHOS/
CM.
GROUND CLAMP