Murphy Comprehensive Guide to LS200 Level Switch Specifications and Features

Specifications

All Models

Body: Nickel plated steel; Optional 316 stainless steel (meets NACE standard MR-01-75 for direct exposure to H2S service)

Float: 304 Stainless steel to operate in 0.5 specific gravity or heavier fluids (LS200 Series models only)

Pressure Rating: 2000 psig (13.8 MPa) [138 bar] (LS200 models only)

O-Ring: Viton

LS200

Process Connection: 2”NPT

Temperature Rating: -20 to 300°F (-29 to 149°C)

Electrical

SPDT (snap-switch)

Green Grd. Connection

Black N.O.

White COM.

Red N.C.

Switch 5 A @ 125-250- 480 VAC

Rating: 1/2 A @ 125 VDC 1/4 A @ 250 VDC

2A @ 6-30 VDC Resistive

1A @ 6-30 VDC Inductive

DPDT (snap-switch)

Green Grd. Connection

Black N.O.

White COM.

Red N.C.

Blue N.C.

Yellow COM.

Orange N.C.

Switch 10 A @ 125-250 VAC

Rating: 1/2 A @ 125 VDC

1/4 A @ 250 VDC

10 A @ 6-24 VDC

Inductive/Resistive

-Optional -20 to 400°F (-29 to 204°C): (not available with DPDT). Electrical: SPDT std. (see “Electrical” section for configuration/rating. Wire: 18 AWG x 36 in. (1.0 mm2 x 916 mm)

LS200NDVOR

Process Connection: 2”NPT

Accessories

Float Chamber 15051098

DVO Valve: 3 way N.C. w/manual operator; all connections 1/8” NPT (minimum 30 psig required)

Filter/Pressure Regulator Set:

-Regulator: 0 to75 psig (0 to 517 kPa) [0 to 5.17 bar] range

-Maximum input pressure: 300 psig (2.07 MPa) [20.7 bar]

LS200NDVO

Process Connection: 2”NPT

DVO Valve: 3 way N.C. w/ manual operator; all connections 1/8” NPT

LS200N

Process Connection: 2”NPT

Vent Valve: 2 way N.C. snap action w/ 1/16 in. (2 mm) orifice and Viton seat;

Inlet: 1/8” NPT ; Outlet: 3/8” NPT

1-11.5 NPT (2 places)

2-11.5 NPT

10.5 in.

(266 mm)

7.55 in.	3.5 in.
(192 mm)	(89 mm)	7.01 in.

Material: Cast Steel, WCB (179 mm)

Shipping Weight: 32 lb. ( 14.5kg).

3 in.

(76 mm)

3 in.

(76 mm)

1/2-20 UNF-2B (4 places)

Operating Pressure: 2000psi

(13.8 MPa) [138 bar]

Operating Temperature:

400°F (204°C)

L1100

Process Connection: 1-1/2” NPT

Pressure Rating: 1500 psi (10.3 MPa) [103 bar]

Weld Collar (LS200 only) 15050375

2 NPT

Float: BUOYGLASTM operates to 0.5 specific gravity; Optional stainless steel to operate in 0.65 specific gravity

Electrical: SPDT switch

Approximate Shipping Weights and Dimensions

All models: 6 lb. 10 oz. (3 kg); 14 x 5 x 3-1/2 in. (356 x 127 x 89 mm).

2-7/8 in

(73 mm)

4-1/2 in

(114 mm)

Operating

Pressure:

2000 psi (13.8 MPa) [138 bar]

3-5/8 in.		Operating
(92 mm)
		Temperature:
		400°F (204°C)
	Material: ASTM A105-2

Dimensions

A

2.5 in. (64 mm) Hex

B

Shipping Weight: 6 lb. ( 2.7kg).

UNS K03504

LS200, L1100
	ø2.19 in.
	(56 mm)
LS200	L1100
A 10.16 in. (258 mm)	11 in. (279 mm)

1/2 NPT E

C D

Float Shaft Extension 15000478

12-24 UNC

12-24 UNC

1 in	3/8 in
(25 mm)	(10 mm)

B 3.44 in. (87 mm)		3.50in. (189mm)
C	ø1.75 in. (44 mm)	ø1.56 in. (40 mm)
D 2.80 in. (71 mm)		3.4 in. (71 mm)
E	2 NPT	1-1/2 NPT

3.63 in. (92 mm)

Material: AISI 303, UNS-S30300

NOTE: The extension is used with the LS200 only. One extension is supplied with each unit. Use of additional extensions is not recommended as they reduce the ability of the unit to operate for the stated specific gravity.

LS200N, LS200NDVO and LS200NDVOR
with Dump Valve Operator,				Filter/
Pressure Regulator & Gage		20BPG-75
				Regulator
Supply Exhaust		Pressure Gage		Nipple
				1/8 NPT
				x 1/8 NPT
TOP VIEW	DVO
Manual
Valve	3.53 in.	Regulator/Gage
Operator Signal out
		Assembly
	(90 mm)
		4.59 in.
		(117 mm)
ø2.19 in.		ø1.75 in.	3.30 in. (84 mm) min.
(56 mm)		(44 mm)	clearance required for
LS200N			float movement.
2" 11-1/2 NPT		3.44 in.
3/8 NPT	3.73 in.	(87 mm)
exhaust
	(95 mm)
	8.49 in. (216 mm)

CAUTION: LS200 series parts are not interchangeable with the L1200 Series.

How to Order your Level Switch

Build a complete model number using the diagram below.

LS200 - ___	NOTE: Refer to LS-04006N for replacement parts.
	Options
	D = DPDT
	K = KALREZ Seals
	400 = 400°F (204°C) Service**
	SF = Stainless Steel float (L1100 only)
Base Models
LS200*	L1100SS†
LS200N*	LS200SS*
LS200NDVO*	LS200NSS*
LS200NDVOR*	LS200NSSDVO*
L1100**†	LS200NSSDVOR*

*Pending Canadian Registration Number OF1476.2. **Not available with DPDT snap-switch.

†Supplied with BUOYGLASTM float.

LS-04004B page 2 of 2