Oil Level Regulators


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


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

TK3+ 46 bar Oil Level Controller

TK3+ 46bar Optical Level Control Unit. Connectors VersionTK3+ 46bar Optical Level Control Unit. Cable Glands Version

The TK3+ is designed to control the oil level in the compressor crankcase in order to avoid the compressor to run without oil and so improve its lifetime. TK3+ monitors the oil level with the embedded electro-optic sensor and comprises a solenoid valve for oil filling and a relay output contact to give an alarm.

Supply voltage  24 VAC
Supply voltage  230 VAC
Key features of TK3+ oil level controller
  • High reliability ensured by absence of mechanical moving parts
  • Sight glass and electronic LEDs can be checked on the same side where is more comfortable to do inspections
  • Well consolidated steel with fused glass technology with absence of seals ensures no leakage and good chemical compatibility
  • 24 VAC / 230 VAC power supply options
  • Easy maintenance of the coil of the valve and of the Electro-Optic sensor that can be easily replaced without emptying or depressurizing the plant
  • 230 VAC /2A alarm relay output suitable for direct connection in the security chain of the system
  • Adapters suitable for various types of compressors
  • Unit conform to directives 2014/30/UE and 2014/35/UE

Some advantages of this solution

  • Extremely compact dimensions
  • Left/Right mounting possibility with the same TK3+
  • Reduction of the number of junctions in the circuit with less possibility of having leakages
  • Usage of less components (simplified circuit and easier warehouse management)
  • Simplified Installation (cost savings in terms of installation time)

TK3+ oil level controller 24 / 230 VAC
Technical Data of the Instrument

Click here to download a PDF technical datasheet of the TK3+ 46bar Oil level controller (600 Kb)
Download a PDF with the Adapter addendum with left-right mounting possibilities (400 Kb)

Supply voltage - 24 VAC ± 10% or 230 VAC ± 10% depending on model
Supply Current - Each TK3+ requires 20VA (depending on the solenoid valve)
Electrical connection - 9.4mm Industry Standard Connectors / EN175301-803 Connector or spare wires
Output signal - Contact free relay output NO and NC
Relay outputs - Up to 230VAC @2A
Housing material - Nickel plated steel / PA glass fibre reinforced
Enclosure protection class - IP 65
Media Temperature - from -40°C to +85°C
Ambient temperature - from -40°C to +60°C
Max working pressure - 46 bar (higher pressure limits available on different TK3+ models)
MOPD - 26 bar (higher pressure limits available on different TK3+ models)
Oil Return Line - 7/16 – 20 UNEF male
Cable Type - PVC cable CEI 20-22. Working temp.: -20 ÷ +70 °C (fixed laying)

tk3 mechanical dimensions

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.