Level Sensors & Switches

LS-1900TFE Single-Point Level Switch

Part Number: 133299
LS-1900TFE_133299
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PRODUCT DESCRIPTION:

LS-1900TFE Series Single-Point Level Switch is an all plastic materials SPDT switch that resists build-up of foreign material or sticky media. Float travel remains uninhibited in viscous or corrosive liquids.

LEAD TIME:

In Stock
Lead-times and expedites

Lead-times apply to standard parts & configurations. Expedited shipments available by contacting factory. Lead-times may vary based on quantity and/or non-standard configurations.

CE ROHS Gems Compliant CSA

Features

  • All Plastic Material
  • Resists Build-Up
  • Ideal for Viscous or Corrosive Liquids 
Sku
133299
Model
LS-1900TFE
Sensor Type
Float Type
Primary Material Of Construction
Plastic
Wetted Materials
Teflon
Stem Material
Teflon
Float Material
Teflon
Float Diameter
2 1/8"
Actuation Level
.92"
Min. Liquid SG
0.8
Maximum Pressure
30 psi
Minimum Temperature
-40°F
Maximum Temperature
300°F
Mounting Size
1/4" NPT Male
Mounting Style
Vertical
Electrical Termination
25" Long, 18 AWG, Polymeric Leads
Switch Type
SPDT (20 VA)
Switch Operation
Normally Open (Reversible)
Input
N/A
Output
N/A
Approvals
CE, ROHS

Reed Switch Protection

Format .pdf
Size 56 KB

Gems Sensors Instructions, Level Switches

Format .pdf
Size 553 KB

Gems Sensors Catalog, Large Plastic 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.