Level Sensors & Switches

LS-1900 Single-Point Level Switch

Part Number: 35682
LS-1900_01907
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PRODUCT DESCRIPTION:

LS-1900 Series Single-Point Level Switch are intermediate in size, are suitable for high viscosity liquids and provide excellent stability for general use in oils and water. With large float displacement, the LS-1900 Series switch withstands rough service.

  • Ideal for Viscosity Fluids
  • Withstands Rough Service
  • Intermediate Size

Features

  • Ideal for Viscosity Fluids
  • Withstands Rough Service
  • Intermediate Size 
SKU
35682
Model
LS-1900
Sensor Type
Float Type
Primary Material Of Construction
Alloy
Wetted Materials
316 Stainless Steel, Buna N, Hysol
Stem Material
Stainless Steel
Float Material
Buna N
Float Diameter
1 7/8"
Actuation Level
1 3/16"
Min. Liquid SG
0.55
Maximum Pressure
150 psi
Minimum Temperature
-40°F
Maximum Temperature
230°F
Mounting Size
1/4" NPT Male
Mounting Style
Vertical
Electrical Termination
25" Long, 18 AWG, Polymeric Leads
Switch Type
SPST (100 VA)
Switch Operation
Normally Open (Reversible)
Input
N/A
Output
N/A

Reed Switch Protection

Format .pdf
Size 56 KB

Gems Sensors Instructions, Level Switches

Format .pdf
Size 553 KB

Gems Sensors Catalog, Large Alloy Float Level Switches

Format .pdf
Size 1 MB
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Is there a minimum current flow requirement for a standard 20VA reed switch?

Yes, very low currents (< 5ma) can prevent “cleaning” of the contacts or not have enough energy to maintain low contact resistance. 5ma is likely a good minimum for our standard 20 VA switch. But you also want enough voltage. Approximately, 5V, 5ma is a good minimum. For low current switching we recommend a 10 VA reed switch which can better handle lower loads. (1ma for example).

What is the life expectancy of a reed switch?

A reed switch is extremely rugged and designed to operate reliably for many years, under ideal conditions, up to about 2 million cycles. To achieve maximum service life, reed switches benefit from protected electrical supply.