Water Leak Alarm/Detector 61F-WLA/-GPN-V50 CSM_61F-WLA_61F-GPN-V50_DS_E_5_4 Flexible Setup according to Water Quality and Surrounding Wiring Conditions • The operating resistance has a variable sensitivity from 0 to 50 kΩ, so the best set values can be made according to the predicted water leakage, degree of overflow, water quality, or surrounding wiring conditions. • The power supplied to the Sensing Band is 24 VAC, so opera- tion is stable because there is no electrode deterioration from electrical corrosion. • A contact signal output enables monitoring from remote loca- tions. [Reference] For detecting leakage of water with high resistivity, use K7L-U/-UD ultra high-sensitivity models. Refer to Safety Precautions for Floatless Level Note: Manufacturing of the 61F-WLA was discontinued at the Controllers. end of September 2016. Ordering Information When ordering, to complete the part number, be sure to specify the desired operating voltage. Water Leak Alarm 61F-WLA * Water Leak Detector 61F-GPN-V50 Example: 61F-WLA [120/240 VAC] * Manufacturing was discontinued at the end of September 2016. Desired supply voltage Specifications ■ Ratings/Characteristics Item Water Leak Alarm Water Leak Detector Model 61F-WLA 61F-GPN-V50 Supply voltage 110/220, 120/240 VAC 24, 110, 120, 220, 230, 240 VAC Operating voltage range 85% to 110% of rated voltage Interelectrode voltage 24 VAC Operating current 3 mA (AC) max. Power consumption 8.0 VA max. 3.2 VA max. Variable (0 to 50 kΩ) Sensitivity Sensitivity error Scale 0: 0 to 10 kΩ *1 Scale 50: 50 ±10 kΩ Contact ratings 3 A 250 VAC, SPDT cosφ=1 3 A 250 VAC, DPDT cosφ=1 1 A 250 VAC, SPDT cosφ=0.4 1 A 250 VAC, DPDT cosφ=0.4 Indicator Provided (Power and Leak indicators) Provided (Operation indicator) Alarm buzzer Provided Not provided Test switch Provided Not provided Ambient temperature –10 to 50°C Ambient humidity 45% to 85% Accessories Hold-down clip PFC-N8 *2 Approved standards – UL508 CSA C22.2 No.14 EN61010-1 EN61326-1 Industrial electromagnetic environment *1 The Detector may not operate around the setting value of “0.” Adjust the sensitivity depending on the actual application. *2 Hold-down clip PFC-N8 is attached only 61F-GPN-V50. 1 61F-WLA/-GPN-V50 Operation ■ Internal Circuit Connections 61F-WLA Water Leak Alarm Power supply Fuse Alarm LED 0V LED Level Rectification/ detection Amplification smoothing X 24V switching circuit circuit circuit BZ Alarm buzzer 110, 120V Rectification/ 24V smoothing circuit 220, 240V Test switch X/C VR S0 S1 S2 Tc Tb Ta E0 E1 110/120VAC Sensing Band 220/240VAC 61F-GPN-V50 Water Leak Detector Level Rectifier/ detector smoothing Amplifier 24 VAC switching circuit circuit AC power source Rectifier/ smoothing Relay 24 VAC circuit Sensitivity adjuster Sensing Band 61F-GPN-V50 Water Leak Detector To Sensing Band Bottom view AC power source 2 61F-WLA/-GPN-V50 Operating Principle When the two conductive cores of the Sensing Band are contacted by a liquid, a weak alternating current (as small as 3 mA max.) flows Core across the cores. This current is amplified to operate a relay. In practice, leakage will be detected if water drops are present Core between the core wire and the Electrode (F03-15 Sensing Band) or detecting section (F03-16PE Sensing Band). (Refer to the specifica- Liquid tions on page 4) Sensing Band Protective Cover Item F03-25 F03-26PES Appearance Suggested use Construction Adhesive Adhesive Comments Secures the F03-15 Sensing Band to the floor sur- Secures the F03-16PE Sensing Band to the floor sur- face. Attach the sticker on a smooth surface. To at- face. Attach the sticker on a smooth surface. To at- tach it on a concrete floor, use a concrete bonding tach it on a concrete floor, use a concrete bonding agent. agent. 3 61F-WLA/-GPN-V50 Dimensions Note: All units are in millimeters unless otherwise indicated. 61F-WLA Water Leak Alarm Three, M5 or 6-dia. mounting holes 61F-GPN-V50 Water Leak Detector ■ Accessories (Order Separately) Connecting Sockets (for 61F-GPN-V50 Water Leak Detector) PF113A-E Track-mounted Socket Eleven, M3.5 x 5 Top view sems screws 61F- Two, M4 or 4.5 dia. holes GPN-V50 52 max. 34±0.2 PF113A-E PFC-N8 Holding 31 max. Bracket PL11 Back-connecting Socket Two, 3.5 dia. or M3 Two, 2 dia. mounting holes holes 61- GPN-V50 Approx. 75 30 dia. 51 max. 31 dia. hole 35 max. Approx. 20.5 Approx. 16 PL11 Important: Install the Water Leak Detector socket with the keyway facing down. Sensing Band F03-15 Crimped electrode pair Stainless steel core (0.3 x 12 braided) Transparent vinyl chloride Sheath: Transparent vinyl chloride 333 mm Core: Stainless steel SUS304 (3 electrode pairs per meter) 1.2 F03-16PE 4 1.7 20 8 4 Sheath: Transparent vinyl chloride Core: Stainless steel SUS316 Detecting Polyethylene section 4 61F-WLA/-GPN-V50 Safety Precautions !WARNING Do not touch the terminals while power is being supplied. Doing so may possibly result in electric shock. Make sure that the terminal cover is installed before using the product. !CAUTION Do not attempt to disassemble, repair, or modify the product. Doing so may occasionally result in minor or moderate injury due to electric shock. ■ Precautions for Safe Use (1) Use only F03-15 or F03-16 Sensing Band. Other water conduc- tors may cause the Water Leak Alarm/Detector to malfunction, or not operate at all because of mismatched sensitivity. (2) Place the Sensing Band at a location where water leakage is most likely to occur. For example, consider the following loca- tions: • Under a raised floor; on the highest floor of a building; on the ceiling In the vicinity of an air conditioner, or on the floor near a humidifier On the floor near a feed-water pipe, conduit; hot-water pipe. On top of a power, or control panel (3) Secure the Sensing Band so that they touch the floor surface or the wall near a pipe arrangement. Cover the Sensing Band with a F03-25 or F03-26 Protective Cover if they are installed at a loca- tion crowed with people. However, place the cover such a manner that water can easily reach the Sensing Band. (4) Keep the temperature at the installation site to within 55°C. Do not install the Water Leak Alarm/Detector/Sensing Band in the proximity of heat-generating equipment (such as that having a coil or wire winding). Also, do not use it in a highly humid loca- tion, or at a location that is subjected to corrosive gases. Do not place the Water Leak Alarm/Detector side-by-side with a high- capacity contactor that produces an inrush current when it oper- ates, as such arrangement may cause chattering to occur, con- sequently causing a malfunction of the Water Leak Alarm/ Detector. (5) Wiring distance of the Sensing Band varies depending on the water quality. When using IV cables, wire the Sensing Band to the length specified in the following table. (6) Mount the 61F-WLA Water Leak Alarm/Detector on a sturdy wall surface which is not subjected to vibration or shock. Do not use double-sided adhesive tape, otherwise, the Detector may detach when the adhesive tape deteriorates due to aging. (7) When wiring the Sensor on conductive objects like metal objects, use the F03-16. (8) When measuring insulation resistance, do not conduct a megger test between the electrode terminals. IV Cable Sensing Band 0 m 200 m 10 to 150 m 150 m 200 to 300 m 100 m 350 to 400 m 50 m 2 Note: IV cable: 2 mm ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 5 Terms and Conditions Agreement 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. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. See http://www.omron.com/global/ or contact your Omron representative for published information. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 2017.3 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2017 All Right Reserved.