OPTIONS
•
Interface calibration
•
Extreme temperature modifications
•
Customized installation dimensions
•
Special exterior surface preparation and finish
•
Special tank connections
•
Special actuation levels
A permanent magnet
is attached to a pivoted
switch actuator and adjustment screw
. As the
float
rises following the liquid level, it raises the
attraction sleeve
into the field of the magnet,
which then snaps against the non-magnetic
enclosing tube
, actuating the switch
. The
enclosing tube provides a static pressure boundary
between the switch mechanism and the process.
On a falling level, an inconel spring retracts the
magnet, deactivating the switch.
TECHNOLOGY
2
5
6
4
1
3
Pivot
Return
Spring
Process Liquid
Process Liquid
Rising Level
Falling Level
SPECIFICATIONS
SWITCH
MECHANISMS
AND
ENCLOSURES
SERIES B, C, D & R DRY CONTACT SWITCHES
•
Dry contact for most applications
•
Designs for AC and DC
current applications
•
Process temperatures
to +1000° F (+538° C)
SERIES F, HS, H1, 8 & 9 HERMETICALLY SEALED SWITCHES
•
Ideal for use in salt and other
corrosive atmospheres
•
Positively pressurized capsules for
entire mechanism and contacts
•
Process temperatures
to +1000° F (+538° C)
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)
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
R
8
15.00
15.00
10.00
1.00
0.50
10.00
—
10.00
10.00
3.00
2.50
—
4.00
0.30
—
5.00
5.00
5.00
0.50
0.25
1.00
1.00
1.00
0.40
—
1.00
1.00
1.00
0.40
—
1.00
—
3.00
—
—
9
—
—
0.50
—
—
2
MAGNETROL [ MAGNETROL INTERNATIONAL, INC. ]
