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Oil Level Regulators

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Oil Level Regulators

The oil control optical level switches are designed for monitoring and controlling the oil level in compressor crankcase.
read more about oil level controllers

CO2 Refrigeration

CO2 Refrigeration

CO2 Refrigeration


Teklab devices are designed for use in level monitoring applications for the control of oil or liquid CO2 for transcritical or subcritical systems.
read more about Teklab solutions for CO2 refrigeration systems

Oil Level Infrared Sensors

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Oil Level Infrared Sensors


The metallic oil level switch has been designed for use in level monitoring applications for the control of oil for compressors or liquid CO2 in transcritical or sub critical applications.
read more about metallic oil level infrared sensors

Rotalock RLK02 optical level swtich for HVAC systems

Rotalock RLK02 optical level switch for hvac systemsThe Rotalock RLK02 optical level switch is specially designed for use in level monitoring for controlling the oil or refrigerant level in HVACS&R systems.
The bodies are made of steel and sensor dome is fused with the body so if well mounted the sensor is leakage free.

The two parts design allow the fast replacement of the electronic parts without depressurizing the system.

Main features
  • The absence of mechanical moving parts ensures High reliability
  • Well consolidated steel with fused glass technology ensures no leakage and good chemical compatibility.
  • Electronic sensor can be easily replaced without empty and/or depressurize the plant due to the two parts design.
  • Extended working temperature range
  • No need for calibrations on the field
  • Rotalock 1” 3/4 - 12 UNF and Rotalock 2” 1/4 - 12 UNF available
  • Unit conform to directives: *2004-108-CE *CEI EN 60204-1:2006

Click here to download a PDF technical datasheet of the Rotalock RLK02 optical level switch (484 Kb)

Technical Data of the Instrument

Supply voltage (± 10%) : 230VAC@50Hz / 115VAC@60Hz / 24 VAC@50/60Hz / 24VDC depending on selected model
Electronic Protections : Over voltage protection
Electrical connection : EN 175301-803A connector (EX DIN 43650 size A)
Output signal : Solid state output Normally Open or Normally Close in air
Supply current : 20mA max during normal operation
Output max. current : Up to 100 mA
Housing material : Nickel plated steel
Enclosure protection class : IP 65
Working Temperature range : -40°C +125°C
Max pressure : 46 bar
Torque tighten : 100 ÷ 150 Nm for adapter installation on the system. Hand Screw with strength the sensor to the adapter
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Copyright 2008-2011 - Teklab S.r.l. - Via Emilia Ovest, 1179 - 41123 Modena - Italy - P.IVA 01976750362 - Company Register of Modena n. 01976750362 - Paid-in Capital Euro 10.000 i.v.