Ametek Drexelbrook Z-tron Level Control 502-302X Series Installation And Operating Instructions Manual page 28

502-302 Series Z-tron Level Control
X
5.2 Testing the
Sensing Element
(cont.)
SENSING ELEM ENT
___________________________________________________________________________________
TO COAX
SHIELD
TO COAX
W IRE
CENTER
CONDUCTOR
M ETAL TAB
TO
S P ARK P RO T E C T O R T E S T
Figure 5-3
Spark Protector Test
AN ALOG OR
D IGIT AL
OH MME TE R
C OR R E C T ME T E R R E AD IN GS
CENTER CONDUCTOR - TAB =
C E N TE R C ON D U C TOR - S H IE L D W IR E = O P E N
C E N TE R C O N D U C TO R - G R O U N D =
S H IE L D W IR E - G R O U N D W IR E =
S H IE L D W IR E - TAB =
TAB TO G R OU N D = O P E N =
GREEN
GROUND
W IRE
24
Troubleshooting
47 OHM S
O P E N
O P E N
O P E N
O P E N