Electro-Optic Level Switches

Gems Sensors ELS-1100 Electro-Optic General Purpose Liquid Level Sensor

• Polysulfone or Nylon wetted parts
• General purpose applications
• Temperature ranges –18 » 80°C
• Pressure range 10 bar
• TTL/CMOS compatible( open collector output )
• ¼” NPT threaded

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Gems Sensors ELS-950 Electro-Optic Rugged Level Sensor

• Compact, rugged electro-optic level switch designed for sensing a wide range of media including OHV (off-highway vehicle) type fluids.
• Offers excellent temperature & pressure capabilities for an engineering plastic point level switch.
• Materials: polysulfone, flurocarbon, TPE (over-molded)
• Pressure: 0 » 250PSIg (0»17bar) max.
• Temperature:  -40 » 110°C
• Output: sink 40mA max. (solid state) up to 30VDC 
  • Wet & Dry activation models available
  • Refer also optional Opto-Pak Controller (link) for relay output
• Supply: 5 & 12VDC models (±10%)
• Process Connections: ¼" NPT, ½"-20UNF-2B, M12x1-8
  • NOTE: UNF & M12 models supplied with matching flurocarbon o-ring
• Electrical connection: flying leads (IP66/67)
• Approvals: CE & UL, ROHS compliant
• Stocked models include: 224501

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Senlux Besta OPG01 opto-electronic level switch

• No moving parts switch made from stainless steel with a quartz glass tip for detecting levels of liquid media.
• Supply: 12 » 32Vdc
• Output: PNP (200 mA), reverse polarity protected
  • Function Opener / Closer
  • LED on rear of device
• Enclosure: IP65
• Electrical connection: Cable PVC, PUR, 3 x 0,25 mm² or Plug M8, other types on request
• Pressure max: 10 bar
• Temperature: -30 » 100°C (Ambient -25 » 70°C)
• Materials: housing stainless steel 1.4305 (optional also in stainless steel 1.4571), quartz glass prism
• Accuracy:±0.5 mm
  • Models available with adjustable sensitivity
• Process connections: 3/8" BSPP, M12x1, ½" BSPP (other types on request)
  • Mounting direction any
  • min. distance sensor tip to reflecting wall 10 mm
• Typically stocked models: OPG01 A2POT & OPG01 B2POT 

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Senlux Besta OPG04 opto-electronic level switch

• No moving parts with a quartz glass tip for detecting levels of liquid media - made from nickel-plated steel for refrigeration applications.
• Supply: 12 » 32Vdc
• Output: PNP (200 mA), reverse polarity protected
  • Function Opener / Closer
  • LED on rear of device
• Enclosure: IP65
• Electrical connection: Cable PVC, PUR, 3 x 0,25 mm² or Plug M8, other types on request
• Pressure max: 40 bar
• Temperature: -40 » 100°C (Ambient -30 » 70°C)
• Materials: nickel-plated steel
  • Glass fused with the steel body (without a seal)
• Accuracy:±0.5 mm
  • Models available with adjustable sensitivity
• Process connections: ½" BSPP (other types on request)
  • Mounting direction any
  • min. distance sensor tip to reflecting wall 10 mm

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Senlux Besta OPG05 opto-electronic level switch

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Gems Sensors ELS-1100TFE Electro-Optic Ultra-Pure Liquid Level Sensor

• Teflon wetted parts
• High purity or chemically aggressive applications
• Temperature ranges –18 to 80°C
• Pressure range 10 bar
• TTL/CMOS compatible( open collector output )
• ¼” NPT threaded

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Gems Sensors ELS-1150 Electro-Optic Compact Liquid Level Sensor

• Compact level switch with no moving parts
  • Ideal for monitoring the small, pressurized vessels found in HVAC, refrigeration and hydraulic applications
• Upgraded with micro-processor board to provide a wide range of new OEM opportunities!
  • e.g. electrical termination, output time delay etc
• Materials: nickel-plated carbon steel or stainless steel (model dependent), fused glass
• Pressure: up to 2500Psig
• Temperature: -40 » 100°C
  • High temperature versions are also available
• Output: transistor (open collector) - wet or dry sink
  • Refer also optional Opto-Pak Controller (link) for relay output
  • Ex approved (FM Certified) versions also available
• Supply: 5 & 12Vdc models
• Process connections: choice of ½” NPT or ¾"-16 straight thread

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Gems Sensors ELS-1200 Electro-Optic High Feature Liquid Level Sensor

• Nickel plated carbon steel, Stainless & Hasteloy C versions
• High pressure rated and corrosion resistant
• Temperature: –40 » 100°C
• Pressure: up to 172 bar
• TTL/CMOS compatible( open collector output )
• ½” & ¾” NPT threaded

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Senlux Besta OPG03 opto-electronic level switch

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Senlux Besta OPG061 opto-electronic level switch

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Senlux Besta OPG06 opto-electronic level switch

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Sitron SOP400 series electro-optic level switches

• No moving parts
• Small size for tight applications
• Supply: 9»32VDC or 5»12VDC
• Output: Transistor output PNP (NO) or NPN (NO or NC) or remote LV400 controller with relay output
  • Local: LED indication
• Performance: ±0.5mm repeatability, <1mm hysteresis, ~1sec response time
• Process conn: NPT, BSP or sanitary fittings
  • Insertion length: typically 35mm
• Media: 
  • Temperature: -40 » 100°C media (up to 135°C on request)
  • Pressure: up to 20 bar
• Wetted parts: 316SS or PVC (>¾"), 
• Enclosure:IP67
  • M12 cable or plug
• Protection: reverse polarity, short circuit & over voltage

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