User manual OMRON K7L-AT50D

[. . . ] Liquid Leakage Sensor Amplifiers K7L-AT50/-AT50D · Ultra-high sensitivity detects impedances of up to 50 M . · Polyethylene makes the Sensing Band more resistant to chemicals. · Series includes models with disconnection detection. *The color of the Sensing Band shown here is a conceptualization and is not necessarily the actual color. Features Sensing Bands boast high degree of chemical resistance. The K7L can be used in a wide range of applications, from semiconductor production installations to food-processing equipment. Inter-electrode Resistance Detection Stable detection of liquids with impedances of up to 50 M and common water. [. . . ] 20 g (1 m) Length of Cable Length of Cable Sensing Band Wiring Cable Note 0m 10 m 50 m 100 m 150 m 200 m ···Set value that can be used. Note: These values are possible provided that a completely insulated 3-conductor VCT cable with a thickness of 0. 75mm2 and a dielectric strength of 600 V is used. Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 3 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 2 Range 1 Range 1 Range 1 Range 1 Range 1 Range 1 (For reference only. Performance values may differ. ) (1) Connection with K7L-AT50 or K7L-AT50D (IV Cable + Sensing Band) 0m 10 m 50 m 100 m 150 m 12 Sensing Band F03-16SF (2) Connection with 61F-GPN-V50 or 61F-WLA (IV Cable + Sensing Band) Sensing Band Wiring Cable Note 0m 10 m 50 m 100 m 150 m ···Can be used. Note: These values are possible provided that a completely insulated 3-conductor VCT cable with a thickness of 0. 75mm2 and a dielectric strength of 600 V is used. 0m 10 m 50 m 100 m 150 m 200 m Dimensions (Unit: mm) F03-16SF Appearance Electrode Internal braiding F03-16SFC External braiding Structure External braiding (white) External braiding (white) Internal braiding (white) Internal braiding (red) Electrode (4. 5) (4. 5) Electrode F03-25 Appearance Structure (3) 25±2 (5) 15±2 (0. 5) (1) Adhesive tape* Material: SUS304 Sensing Band F03-16SF 13 Chemical Resistivity for F03-16PE/-16PT Material Water Acetone Ammonia Ethanol Hydrochloric acid Xylene Cyclohexane Trichloroethylene A C A B A B C C Sheath Polyethylene Fluoroplastic A A A A A A A A A A A A A C A A --A Core SUS316 Toluene Phenol Butanol Fluorine Hexane Benzene Methanol Sulfuric acid Phosphoric acid Material C B B A C C B C A Sheath Polyethylene Fluoroplastic B B A A A A A A B B A --C --A A B B Core SUS316 Hydrogen peroxide solution A Note: 1. A: Not affected at all or only very slightly affected. B: Slightly affected but, depending on the conditions, sufficient for use. (Replace the Sensing Band immediately after detection. ) 2. In order to prevent secondary fire damage, consider the effect of the atmosphere of the environment and the solution to be detected on the Sensing Band. If the Sensing Band changes shape or color when a liquid is detected, replace the Sensing Band. Connecting the Sensing Band Bending the Sensing Band To change the direction of the Sensing Band, bend the Sensing Band in one or two places where the core is not exposed. Interval Between Stickers When securing the Sensing Band with Stickers, attach the Stickers at intervals of 20 to 30 cm in places where the core is not exposed. 20 to 30 cm Sensing Band Sticker Bent in 1 place Bent in 2 places Note: Bend the Sensing Band approximately 4 cm (i. e. , twice the distance between places where the core is exposed) away from places where a Sticker is attached. If the Sensing Band is bent at places further away than this, the Sensing Band may come away from the surface. Note: 1. When using the F03-26PES (adhesive-tape model), be sure to wipe all moisture, oil, and dust from the surface to which the Sticker is to be attached. Failure to do so may result in insufficient adhesion, and the Sticker may peel away from the surface. When using the F03-26PEN (screw model), before installing the Sensing Band, it is necessary to perform stud welding. For details on the pitch of the studs, refer to the information on the dimensions of Sensing Band Stickers. Stripping and Connecting Terminals 1. Cut into the Sensing Band approximately 4 to 6 cm in from the end as shown in the diagram below. Strip away approximately the last 9 mm of the sheath to expose the core (SUS line). To connect to the Terminal Block, push down the top of the terminal with a screwdriver and insert the core from the side. (Refer to Dimensions on page 9. ) More Sensing Bands can be connected simply by wiring in an arch shape. 4 to 6 cm 9 mm Exposed part of core Insert F03-20 Terminal Block Note: Check that the wiring is secure before using the K7L in applications. 14 Sensing Band F03-16PE/-16PT/-15/-16SF Liquid Leakage Sensing Band Precautions Refer to the following installation methods and install the Sensing Band securely using the proper method for the location and environment. Post or Beam Mounting Use fasteners, such as concrete anchors, to secure the Sensing Band every 500 to 1, 000 mm to ensure that it does not come loose. If the surface of the post or beam is very uneven, apply two-sided tape to the mounting surface first and then secure the Sensing Band to the tape with the fastener. [. . . ] · Locations subject to shock or vibration · Locations where the temperature or humidity lies outside the specified range, or where condensation is likely to occur (To detect liquids with high impedances, do not use in locations with high humidity. ) · Locations subject to dust · Locations subject to corrosive gases (particularly sulfide and ammonia gases) · Outdoors or locations subject to direct sunlight · Near devices that generate strong high-frequency noise (e. g. , highfrequency welding devices etc. ) Liquid Leakage Sensor Amplifier K7L-AT50/-AT50D, F03-16PS 19 Warranty and Application Considerations Read and Understand this Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. [. . . ]