Spirax Sarco LC2650 User Manual

IM-P402-128 EMM Issue 7
31
5.5 Level input options
The level output from an PA20 or LP20 capacitance probe can be 'daisy chained' to more
than one instrument (see examples below).
Each instrument must be capable of receiving a 1 - 6 Vdc signal. Only one of the instruments
needs to provide a 24 V nominal supply. In the above example, the product is supplying the
power for the PA20.
Fig. 17
Multiple controller connection to a PA20
(daisy chained)
Back
50 51 52 53 54 55
51 53 54
18 19
11 12
+ve -ve
Another
LC2650
LC2200
LT2010,
LC2300 or
LC2500
Building
management
system
+24 V Vin lin COM SCN
Level input (s)
1 2
50 51 52 53 54
+24V Vin lin COM SCN
Level input (s)
Connect to a
clean earth
local in the
panel
+ -
Loop powered 4-20
mA level transmitter
55
E
Back
E
PA20 or LP20
capacitance level probe
Fig. 19 PA420
4 - 20 mA capacitance level probe
Fig. 18 4 - 20 mA level transmitter
+ -
Self powered
4-20 mA level
transmitter
Connect to
a clean earth
local in the
panel
Back
50 51 52 53 54
+24V Vin lin COM SCN
Level input (s)
55
E

Spirax Sarco LC2650 Specifications

General

Brand	Spirax Sarco
Model	LC2650
Category	Controller
Language	English