A15-2E2B-BKB datasheet(25/28 Pages) MAGNETROL

25 / 28 page

ELECTRIC SWITCH MECHANISM AND ENCLOSURE

PLUS ALARM

ARRANGEMENT NO. 1 – FILL WITH

HIGH LEVEL ALARM

The bottom switch starts the drain

cycle

when

the

level

reaches

the

upper displacer. The drain cycle stops

when the level falls to the bottom dis-

placer. If level rises above the “drain

start” level, the top switch will acti-

vate an alarm.

Top Switch

Narrow,

Diff. Fixed

Bottom Switch

Wide, Diff.

Adjustable

PLUS ALARM

ARRANGEMENT NO. 2 – DRAIN

WITH LOW LEVEL ALARM

The top switch starts the fill cycle

when level drops to the lower dis-

placer. The fill cycle stops when level

rises to the top displacer. If level rises

to the “fill start” level, the bottom

switch will activate an alarm.

Bottom Switch

Narrow,

Diff. Fixed

Top Switch

Wide, Diff.

Adjustable

CONTROL OF TWO PUMPS

ARRANGEMENT NO. 4

The top switch cycles with level

between the top and bottom dis-

placer. The bottom switch cycles

with level between the middle and

bottom displacer.

Bottom Switch

Wide, Diff.

Adjustable

Top Switch

Wide, Diff.

Adjustable

CONTROL OF TWO PUMPS

ARRANGEMENT NO. 5

The top switch cycles with level

between the top and middle dis-

placer. The bottom switch cycles

with level between the top and

bottom displacer.

Top Switch

Wide, Diff.

Adjustable

Bottom Switch

Wide, Diff.

Adjustable

The top switch cycles with level

between the top and middle dis-

placer. The bottom switch cycles

with level between the middle and

bottom displacer.

CONTROL OF TWO PUMPS OF DIFFERENT CAPACITY

ARRANGEMENT NO. 3 – TWO SWITCH,WIDE

DIFFERENTIAL OR DRAIN

Top Switch

Wide, Diff.

Adjustable

Bottom Switch

Wide, Diff.

Adjustable

Switch Description

Process

Temp. Range

° F (°C)

Two

Set Points

Switch Enclosure

TYPE 4X/7/9 Alum Polymer Coated

Class

I, Div. 1,

Groups C & D

Class

I, Div. 1,

Group B

ATEX

II 2G

EEx d

IIC T6

Series B Snap Switch

–40 to +250

(–40 to +121)

SPDT

BLB

BLK

BD9

DPDT

BOB

BOK

BG9

Series C Snap Switch

–40 to +450

(–40 to +232)

SPDT

CLB

CLK

CD9

DPDT

COB

COK

CG9

Series D Snap Switch

For DC Current Applications

–40 to +250

(–40 to +121)

SPDT

DLB

DLK

DD9

DPDT

DOB

DOK

DG9

Series F Hermetically Sealed

Snap Switch

–50 to +500

(–46 to +260)

SPDT

FLB

FLK

FD9

DPDT

FOB

FOK

FG9

Series 8 Hermetically Sealed

Snap Switch

–50 to +500

(–46 to +260)

SPDT

8LB

8LK

8D9

DPDT

8OB

8OK

8G9

Not available with displacer material and Proof-er option

codes D, E, and F.

Pressure/temperature ratings on page 3. Flanges are ANSI type.

Not available with material of construction codes M and N.

#125 flanges will be cast iron.

Not available with material of construction code -4.

Proof-er in carbon steel only with all materials of construction

codes.

Uncontrolled housing heater or drain available in NEMA

4X/7/9 enclosures. Consult factory for standard part numbers.

Pneumatic switch mechanisms and enclosures are unavail-

able for Series B10 and B15 switches.

Process temperature based on +100° F (+38° C) ambient.

Consult factory for NEMA 4X/7/9 cast iron housings.

Available only in carbon steel. Consult factory for 4" 300 lb.

316 SS flanged connection.

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