
That’s why they call us “THE LEADERS”
We are making a revolution of:
✅Electro optic systems
✅Liquid level sensors
✅CO2 Refrigeration systems
✅Refrigeration compressors
✅Innovative Communication Devices
✅Enhanced Oil Level Regulators
with integrated Modbus RTU Connectivity
And you? Do you want to be part of it?
You are in safe Hands with Teklab!
Please fill in the form with your requirements, our engineer will reply you within 24 hours.
Electro optic systems and liquid level sensors
Traditional liquid level sensors based on pressure (diaphragm), mechanical or magnetic floating devices have moving parts in them. These moving parts make them less rugged, dependable and reduce their useful life. ✅These systems are simple, solid state devices with no moving parts and are economical, compact in size and lightweight.
✅The electro optic systems based on infrared technology have an infrared emitter and an optical receiver. ✅The response time of these sensors is very fast, almost instantaneous and detection accuracy is +/- 2 mm.
✅IR sensors can be mounted in any angle and top, side or bottom fitted.
✅They can be used for a variety of liquids including water, oil, CO2 etc.
✅They have long life and are reliable.
✅They can withstand extreme Temperatures, pressures, vibrations and shocks.
✅They can have different output types.
✅They can be directly connected to a PLC system for further processing of the output signal.
✅They have a wide operating temperature range from – 40 deg C to +125 deg C.
✅The IR sensors are not affected by the liquid hardness or conductivity and hence can be used in any geographical area without any alteration.
✅They do not require recalibration.
✅They can sense the levels of clear, translucent, reflective, as well as opaque liquids.
✅These liquid level sensors have a programmable timer inside for delaying the output switching. It increases the reliability of the output and takes care of any transients in the input like waves, bubble, foams etc. |
CO2 Refrigeration systems
Teklab solutions for CO2 refrigeration systems

K25 4-20mA liquid level sensor

LC XP liquid level sensor for high pressure systems

TK3 80bar oil level regulato

TK3 100bar oil level regulator
Some of the advantages of CO2 refrigeration system with CO2 as refrigerant are:
✅widely available;
✅high volumetric cooling capacity and heat transfer;
✅no recovery or recycling required;
✅non inflammable and non toxic;
✅environment friendly;
✅the compressors are compact in size
Some of the difficulties is using CO2 in CO2 refrigeration systems are:
❗high working pressure and large pressure difference (3 to 5 times conventional refrigerants);
❗low theoretical efficiency with normal refrigeration systems. Hence it requires advanced technology compressor and refrigeration system. The hoses need to be strong as well as the evaporators and gas coolers are used instead of condensers as there is no phase change of the refrigerant. They are widely used in vending machines.
Also a correct oil level in the compressors must be guaranteed in order to ensure proper lubrication.
Please fill in the form with your requirements, our engineer will reply you within 24 hours.
Refrigeration compressors
Refrigeration compressors are an important component of any refrigeration system. They convert the refrigerant in saturated vapour state to superheated state. There are various types of compressors used for refrigeration.
They include reciprocating compressors, centrifugal compressors, scroll compressors, screw compressors, vane compressors, etc.
Reciprocating refrigeration compressors have pistons moving inside a cylinder in an up and down fashion. They have the advantage of ability to create high compression ratios but suffer from noise and low efficiency. Centrifugal compressors use radial flow of vapour for compression.
They have blades mounted on a rotating shaft that create the radial flow. They can handle large volume of vapour but the compression ratio is low.
As reciprocating compressors using pistons and valves are noisy, they are being replaced by scroll compressors.
The latter consist of 2 spiral shaped members that fit into each other. One of them remains stationary while the second rotates around it. The refrigerant vapour is sucked into the centre of the scroll increasing the pressure. The compression is continuous, smooth, efficient and quiet.
Depending on the type of application, like white goods, mobile refrigeration, light commercial refrigeration, commercial refrigeration, air conditioning etc. and the type of refrigerant used the right compressor with the right capacity needs to be chosen for a given application.
For example, for mobile applications, small DC hermetic compressors are used while large scroll compressors do the job for large commercial air conditioning or industrial application.
Refrigeration compressors that operate both with both Direct Current (9.6V to 31.5 V) and Alternating Current (85 VAC to 265 VAC, 50 / 60 Hz) are available.
Please fill in the form with your requirements, our engineer will reply you within 24 hours.
Innovative Communication Devices
Main Features
TK4 combines the established reliability and ease of installation of TK3 and TK3+ with revolutionary connectivity capabilities which opens new and interesting usage scenarios for the product.
TK4 in fact integrates a wireless near field communication protocol that allows users to interact with the oil level regulator to expand product’s features.
The communication technology adopted is:
✅Extremely easy-to-use: data accessible without disassembling enclosures and connecting cables.
✅Powered / not powered operating: several information accessible also when the electronics is not powered (useful for quick and easy in-house customization).
✅Highly compact and cost effective: the product keeps its very compact design and there is no need for expensive devices.
✅Highly safe: password protected point to point single link with limited range of operation to avoid unwanted changes from unauthorized personnel.
✅Really Flexible: possibility of modifying functioning parameters and verify working conditions (also in real time) to optimize system’s operation.
✅Open for the future: Teklab is continuously in contact with customers for adding features to the product.
Typical applications are
✅Verification of product operation status and system operating conditions during normal maintenance operations.
✅Functioning timings customization
✅Alarm timing customization

Note. Customizations possible both “off line” (factory setting before shipping and installation) and “on line” (on the field system adjustment / optimization).

Available programming interfaces are
NANO INTERFACE
TK4-PRG-NANO

ADVANCED INTERFACE
TK4-PRG-ADV

Please fill in the form with your requirements, our engineer will reply you within 24 hours.
Modbus Connectivity
Enhanced Oil Level Regulators
with integrated Modbus RTU Connectivity
TK4-MB combines the established reliability and ease of installation of TK3+ with revolutionary flexibility of standard TK4 extending its connectivity capabilities through the introduction of wired serial interface based on Modbus RTU protocol.
TK4-MB in fact integrates two possibilities of communication interface:
✅A wired serial interface based on Modbus RTU protocol.
✅A wireless near field communication protocol that allows users to interact easily and directly with the oil level regulator using a Windows based PC or an Android device (Mobile Phone or Tablet).
The TK4-MB is designed to be connected to widely diffused Modbus RTU networks as a slave node opening the possibility of having the availability of info about working conditions of the product and thus of the system. Consequently it is possible to have remote monitoring of the compressor pack even further reliable and effective letting it possible to optimize systems performances, to prevent and manage alarms and to elaborate accurate maintenance plans.
Typical applications are:
✅verification of product operation status and system operating conditions from remote control rooms (using Modbus interface).
✅verification of product operation status and system operating conditions during normal maintenance operations directly on the unit without the needing of any connection (using wireless interface).
✅functioning timings customization for system’s optimization.
✅alarm timings customization
Please fill in the form with your requirements, our engineer will reply you within 24 hours.
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