Choosing PVC, PUR, FEP and TPE cable types

When specifying the electrical connection for submersible types of the LMP, LMK and DCL series of liquid level sensors, you will need to choose from a selection of cable types.

The choice of cable will depend on your budget, application environment, and liquid compatibility.

Below is a summary of the properties of each cable to help make a better decision on the most appropriate cable for your application.

Contents

PVC

Operating temperature from 0 … 70 °C
Max. cable length 140 m
Material is very flexible
Good chemical resistance

PUR

Operating temperature from -20 … 100 °C
Max. cable length 700 m
Abrasion-proof
Resistant against chemicals
May be used in food industry

FEP

Operating temperature from -25 … 125 °C
Max. cable length 700 m
PUR cable + PTFE cover
Resistant against all kinds of chemicals

TPE

Large operating temperature from -25 … 125 °C
Max. cable length 800 m
Resistant against sea water and heavy oil

TPE-U

Large operating temperature from -10 … 75 °C
Drinking water approved

Featured submersible cable liquid level sensor products

LMP307 Submersible Level Transmitter - Submersible level transmitter for measuring liquid level with a 4-20mA current loop or a 0-10V voltage output plus optional ATEX approval for intrinsically safe use in hazardous areas in ranges from 1mH2O up to 250mH2O. The LMP307 is suitable for use on potable water with no leaching, and can be supplied with a drinking water certificate according to DVGW and KTW.
200m deep well pump water level sensor, switch & display - Protect your deep well pump with thhis submersible level transmitter and wall mounted indicator and alarm. This system provides reliable water level monitoring and pump protection at depths of up to 200 meters.

Help

FEP vs TPE for Diesel

Is a FEP or TPE outer cable material preferred for immersing in diesel? TPE seems to be a common choice for marine approved applications, but what’s the reason?

TPE is more robust, resistant to seawater and rated higher for hot environments.

FEP is better with diesel in non-marine applications, but TPE is also acceptable.

Featured submersible cable liquid level sensor products

Underground rain water storage tank level sensor and readout for 2 metre depth - Water level indicator for a 2 metre deep rain water storage tank located underground.
200m deep well pump water level sensor, switch & display - Protect your deep well pump with thhis submersible level transmitter and wall mounted indicator and alarm. This system provides reliable water level monitoring and pump protection at depths of up to 200 meters.