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5.6 Wiring diagram for the UL version of the PA20
PA20 preamplifier and LP20 capacitance probe (see PA20 and LP20 Installation and
Maintenance Instructions).
Fig. 20
Capacitance level probe
Back
50
+24V Vin lin COM SCN
Level input (s)
51 52 53 54 55
E
Connect to
clean earth
local to the
panel
Screen
Terminal box
Brown
Red
Orange
Black
1 2 3
*
*
See PA20 IMI for sensitivity selection
Flying leads supplied with the UL
approved PA20 (approximately 12")
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