Measured Variable:

Liquid level

Deadband:

Narrow differential = 0.50"

Wide differential = up to 18.26"

Interface service differential 1.72"

Float & Trim Parts:

316 stainless steel or Hastelloy C

Flange Materials:

Carbon steel, 316 stainless steel, 316 stainless steel clad carbon steel

Hastelloy C, or Hastelloy C clad carbon steel

Process Connections:

2" NPT, 3" to 6" ANSI flanges in 150# to 900# pressure classes

Process Temp Range*:

Cast Iron Housing

Cast Aluminum Housing

HS with silver contacts

-65° to +750° F (-54° to +399° C)

-65° to +650° F (-54° to +343° C)

HS with gold contacts

-65° to +750° F (-54° to +399° C)

-65° to +650° F (-54° to +343° C)

Snap with silver contacts

-40° to +750° F (-40° to +399° C)

-40° to +650° F (-40° to +343° C)

Snap with gold contacts

-40° to +375° F (-40° to +190° C)

-40° to +325° F (-40° to +162° C)

Ambient Temp. Range*

0° to +100° F (-18° to +38° C)

Maximum Process Pressure:

2630 psig (181 bar)

Signal Output:

Switch closure

Type of Contacts:

SPDT or DPDT

Contact Material:

Silver or gold

Type of Switches:

Dry contact or Hermetically sealed

Switch Ratings:

Up to 10 amps @ 120/240 VAC

Up to 6 amps @ 24 VDC

Enclosure Rating:

NEMA 4X/7/9, Class

I, Div 1, Groups B, C & D, IP66

Enclosure Material:

Cast aluminum or cast iron

Cable Entry:

3

P H Y S I C A L

S P E C I F I C A T I O N S

E L E C T R I C A L

S P E C I F I C A T I O N S

2

• Carbon steel with 316 SS, all 316 SS or all

Hastelloy C wetted components

• Enlarged switch enclosure for wiring ease

• Explosion proof NEMA 4X/7/9 enclosure

• All models available with FM, CSA and

ATEX approvals

• Choice of cast aluminum or cast iron switch enclosure

• Interface service with 0.10 minimum specific

gravity difference

• External cages available in carbon steel and

316 stainless steel

• Fixed narrow differential models

• Adjustable wide differential models

• Wide selection of process connections:

2" NPT

3" to 6" ANSI flanges

ANSI flanges pressure classes from 150# to 900#

• Wide selection of switches:

SPDT or DPDT

Silver or gold contacts

Dry contact

Hermetically sealed

A D D I T I O N A L

F E A T U R E S

bulletin 44-607 for maximum allowable process temperature.