Fisher 4660 - Page 5

Type 4660
5
Figure 2. Typical Connection Schematics
PROCESS
OUTPUT
SUPPLY
PROCESS NO. 1
OUTPUT
SUPPLY
PROCESS
NO. 2
SUPPLY
SUPPLY
PROCESS NO. 1
PROCESS
NO. 2
OUTPUT TO SUPPLY
PROCESS
SUPPLY
PROCESS
OUTPUT
ELECTRICAL
PRESSURE
SWITCH
A. HIGHĆONLY AND LOWĆONLY PILOTS
SENSING A SINGLE PROCESS POINT
AND HAVING A SINGLE OUTPUT
B. LOWĆONLY AND HIGH/LOW PILOTS
WITH DUAL OUTPUTS AND DIFFERENT
PROCESS PRESSURES
C. LOWĆONLY AND HIGH/LOW PILOTS
WITH SINGLE OUTPUT AND
DIFFERENT PROCESS PRESSURES
D. LOWĆONLY AND HIGHĆONLY PILOTS
WITH DUAL OUTPUTS AND
COMMON PROCESS PRESSURE
E. HIGH/LOW PILOT INTERFACED
WITH A PRESSURE SWITCH
C0584-1 / IL
39A1578-A
38A6087-B
38A6086-B
38A6084-B
38A6085-B
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT