TK3 120 bar CO2 Oil Level Controller

The TK3 120 bar oil level controller is designed to control the oil level in the CO2 compressor crankcase in order to avoid the compressor to run without oil and so improve its lifetime. TK3 120 bar oil level controller 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 or directly stop the compressor (through a separate power relay).

230 VAC / 2A alarm relay output  is suitable for direct connection in the security chain of the system
Its very compact dual-pitch fl ange-like design let the mounting more easy: the TK3 can be mounted as sight glass replacement directly onto 3 bolts or 4 bolts compressors giving the possibility to rack manufacturers to build more compact units.

If the compressor has a threaded instead of a flaged sight glass, adapter kits are available.

The sightglass is still available and it is on the same side of the LEDs in order to give the complete situation about the oil status in one eye-shot.
Supply voltage 24 VAC
Supply voltage 230 VAC
Key features of TK3 oil level controller
  • Reduced size
  • High reliability control
  • Replaceable electronic without depressurizing the system
  • No need for external pressure adapters
  • LEDs and sightglass give immediate reading of system status
  • The TK3 is suitable to work with all the ΔP of the system so there is no need to use pressure reduction components
  • 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)
  • No need for calibrations on the field.

TK3 120 bar CO2 oil level controller 24 / 230 VAC
Technical Data of the Instrument

Click here to download a PDF technical datasheet of the TK3 120bar CO2 Oil level controller (530 Kb)
Download a PDF with the TK3 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 50VA (depending on the solenoid valve)
Electrical connection - 9.4mm Industry Standard Connectors / EN175301-803A Connector
Output signal - Contact free relay output NO and NC
Relay outputs - Up to 230VAC @2A
Housing material - Nickel plated steel
Enclosure protection class - IP 65
Media Temperature - from -40°C to +85°C
Ambient temperature - from -40°C to +60°C
Max working pressure - 120 bar (different pressure limits available on different TK3 models)
MOPD - 100 bar (different 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.