OPTIONS
•
Special levels/body extensions
•
316/304 SS chambers
•
NACE
•
Gold switch contacts
•
Interface (except B74)
•
Vent and drain connections
TECHNOLOGY
The weight of the displacer
is supported by the spring
.
allowing the spring to compress. The attraction sleeve
,
attached to the spring, moves upward into the field of a
Rising liquid level imparts buoyancy forces on the displacer
3
6
5
4
5
4
6
3
permanent magnet
.
Magnet motion causes the switch
to actuate. A non-magnetic barrier tube
provides a static
pressure boundary between the switch mechanism and the
2
displacer assembly.
1
1
SPECIFICATIONS
SWITCH
MECHANISMS
AND
ENCLOSURES
SERIES J & K PNEUMATIC SWITCHES
•
Suited for applications where
electrical power is not available
•
Bleed and non-bleed designs
•
Process temperatures
to +400° F (+204° C)
SERIES F, HS, H1 & 8 HERMETICALLY SEALED SWITCHES
•
Ideal for use in salt and other
corrosive atmospheres
•
Series “HS” and “H1” are positively
pressurized capsules for entire
mechanism and contacts
•
Process temperatures
to +750° F (+399° C)
SERIES B, C & D DRY CONTACT SWITCHES
•
Designed for AC and DC
current applications
•
Series C for process temperatures
to +450° F (+232° C)
SWITCH ENCLOSURES
•
TYPE 4X/7/9 aluminum enclosures
•
Designed to meet Class I, Div. 1,
Groups C & D and Class I, Div. 1
Group B
•
Optional housing heaters and drains
available for some enclosures
•
Pneumatic switch mechanisms
available with a NEMA 1 enclosure
BASIC ELECTRICAL RATINGS
Voltage
120 VAC
240 VAC
24 VDC
120 VDC
240 VDC
B
15.00
15.00
6.00
0.50
0.25
Switch Series and Non-Inductive Ampere Rating
C
D
F
HS
H1
15.00
15.00
10.00
1.00
0.50
10.00
—
10.00
10.00
3.00
0.25
—
4.00
0.30
—
5.00
5.00
5.00
0.50
0.25
1.00
1.00
1.00
0.40
—
8
1.00
—
3.00
—
—
2