TAKEX FL-7013 φ6.35 PFA Liquid Level Fiber Optic Sensor

• PFA chemical-resistant liquid sensing: The fiber is protected with a PFA fluoropolymer covering for liquid level detection in water, oil, and a wide range of chemical liquids.
• Refractive liquid level detection: The sensing principle uses the difference in refractive index between air and liquid to determine whether the sensing point is in contact with liquid.
• φ6.35 cylindrical sensing tip: All four models use a φ6.35 cylindrical tip for installation at the required liquid level position.
• 1 mm or less repeatability: Repeatability is 1 mm or less when detecting water, supporting stable liquid level position detection.
• Pressure- and temperature-capable design: The FL type supports −0.1 to +0.5 MPa pressure resistance and an ambient temperature range of −40 to +70°C.

Q1: What is the TAKEX FL-7013 Series?
A: The FL-7013 Series consists of φ6.35 PFA-covered fiber optic units that use refractive sensing for liquid level detection in water, oil, and chemical liquids.

Q2: Which models are included in the FL-7013 Series?
A: The series includes FL-7013, FL-7013-02, FL-7013-05, and FL-7013-1. All use a φ6.35 cylindrical sensing tip and chemical-resistant PFA construction.

Q3: What liquids can the FL-7013 Series detect?
A: It can be used with water, oil, and a wide range of chemical liquids, including colored and colorless transparent liquids. Sample testing is recommended for highly viscous or turbid liquids.

Q4: How does FL-7013 detect liquid level?
A: It uses a refractive sensing principle that detects the optical change caused by the difference in refractive index between air and liquid.

Q5: What is the repeatability of the FL-7013 Series?
A: Repeatability is 1 mm or less when detecting water.

Q6: What is the pressure resistance of FL-7013?
A: The pressure resistance range is −0.1 to +0.5 MPa.

Q7: What is the ambient temperature range of the FL-7013 Series?
A: The FL type operates from −40 to +70°C, provided condensation does not occur inside the PFA tube.

Q8: What is the allowable bending radius of the FL-7013 fiber?
A: The allowable bending radius is R40 mm. The first 50 mm from the sensing tip must remain straight and must not be bent.

Q9: Does FL-7013 provide NPN or PNP output?
A: No. The FL-7013 Series is a fiber optic sensing unit and requires a compatible fiber amplifier such as F100R, F85RN, F80R, F70AR, F70R, or XF12R-A for electrical output.

Q10: What applications are suitable for the FL-7013 Series?
A: It is suited to liquid level and liquid presence detection in tanks, process equipment, and liquid supply systems, especially where chemical-resistant PFA construction is required.