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Dwyer L8 Installation guide

  • Hello! I've reviewed the datasheet for the Dwyer L8 series liquid level switches. This document details the specifications, benefits, and applications for models L8, L8-INC, L8-MV, L8-WP, and L8-WP2. I can assist you with questions regarding their chemical resistance, magnetic actuation, various material options, installation, and more. Feel free to ask me anything you'd like.
  • What is the maximum temperature limit for this liquid level switch?
    What is the pressure limit?
    What is the minimum specific gravity of liquids that can be used?
    What are the wetted materials?
    What is the electrical connection type?
311
Level Switches,
Float
LEVEL
FLOTECT® LIQUID LEVEL SWITCHES
Low Cost, Leak Proof Body, Excellent Chemical Resistance
The Model L8 Flotect® Liquid Level Switches are oat switches constructed
of polyphenylene sulde, Ceramic 8 and 316 SS. This liquid level switch provides
accurate set point control of liquids with specic gravities as low as 0.6.
BENEFITS/FEATURES
• Excellent chemical resistance with oat constructed from durable polyphenylene
sulde and leak-proof body
• Longer life and decreased maintenance costs with liquid level snap switch, which is
magnetically actuated with no direct mechanical linkage to leak or fail
• Quick and easy installation by simple placement of the unit in a horizontal position
with the index arrow pointing down
• Suitable for mounting in a protected environment with UL recognitionas an industrial
motor controller per UL standard 508
APPLICATIONS
• Environmental control
• Waste water
• Scrubber systems
• Holding tanks
• Cooling towers
• Chemical/petroleum processing
• Plating and washing tanks
• Sewage treatment
• Car washes
• Remediation systems
• Thermal storage systems
• HVAC and building automation systems
SWITCH
BODY
1˝ NPT(M)1/2˝ NPT(M)
Ø1-21/32
[42.07]
4-17/32
[1
15.09]
[3] 18 AWG
LEAD WIRES
18 [457.2] LONG 3-1/16
[77.79]
1-5/16 [33.32] OCTAGON
8-5/16
[211.12] 4-5/16
[109.52]
FLOAT
2-17/32
[64.29]
Ø1-1/8
[28.58]
11-13/64
[284.56]
Ø1-21/32
[42.07]
3-1/16
[77.79] 4-5/16
[109.52]
2-17/32
[64.29]
Ø1-1/8
[28.58 ]
4-17/32
[1
15.09]
1 NPTM
1-5/16 OCTAGON
[33.32]
1/2 NPTM
L8 L8-WP2
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Float and body: Polyphenylene sulde (PPS); Pin and spring:
316 SS or Inconel®; Magnet: Ceramic 8.
Temperature Limit: 212°F (100°C).
Pressure Limit: 150 psig (10.34 bar).
Enclosure Rating: General purpose. WP/WP2 option is weatherproof.
Switch Type: SPDT snap switch. MV option is a SPDT gold contact snap switch.
Electrical Rating: 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC. MV
option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.
Electrical Connections: 18 AWG, 18˝ (460 mm) long.
Conduit Connection: 1/2˝ male NPT, 1/2˝ female NPT on WP and WP2.
Process Connection: 1˝ male NPT.
Mounting Orientation: Horizontal with index arrow pointing down.
Weight: 5 oz (0.142 kg).
Specic Gravity: 0.6 minimum.
Compliance: CE, cURus.
Inconel® is a registered trademark of Huntington Alloys Corporation
MODEL L8
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DWYER INSTRUMENTS, LLC | dwyer-inst.com
MODEL CHART
Model Description
L8 Level switch
OPTIONS
To order
add sufx: Description
-INC
-MV
-WP
-WP2
Inconel® alloy. Inconel® alloy replaces standard 316 SS wetted parts.
Wetted parts are Inconel® alloy, ceramic 8, and polyphenylene sulde
Gold plated contacts for dry circuits. Rated 1 A @ 125 VAC; 1 A
resistive, 0.5 A inductive @ 30 VDC
Weatherproof enclosure. Optional housing is phenylpolioxide
and provides weatherproof protection for electrical wiring (not UL
approved)
Weatherproof enclosure. Optional housing is aluminum and provides
weatherproof protection for electrical wiring (not UL approved)
Example: L8-INC
/