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Nohken FM-16 Instruction Manual

Side-mounted float sensor
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Summary of Contents for Nohken FM-16

  • Page 2 ・The specification of product mentioned in this manual may not be satisfied by the condition of environment and usage. Check and consider carefully before using. ・Contact to sales office at NOHKEN INC. for any question or comment about this manual and product.
  • Page 3 (Follow the additional document and/or direction, submitted by NOHKEN INC. and our distributor or agent.) Turn off the power, before wiring and inspection. Otherwise, electric leakage, fire caused by short circuit, and electric shock may be occurred.
  • Page 4  CAUTION Check and deeply consider the chemical compatibility for material of product in advance. The part especially float, which is very thin, may be malfunctioned by miner corrosion. Check and deeply consider the chemical compatibility for material of product in advance. Hold the stem very close to mounting point, when carrying, installing, and removing.
  • Page 5 B) We are glad to suggest and advice for Model selection and chemical resistant of material, but final decision has to be made by the customer. C) This manual has prepared with close attention. Ask sales office at NOHKEN INC. for any question or comment about the contents of this manual.

  • Page 6: Table Of Contents

    ＴＡＢＬＥ ＯＦ ＣＯＮＴＥＮＴＳ MUST BE READ BEFORE USING INTRODUCTION WARRANTY & DISCLAIMER NOTE TO USERS TABLE OF CONTENTS Page No. 1. PURPOSE OF USE ・・・・・・・・・・・・・・・・・・・・・・・・・ 1 2. SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・ 1 2.1 Standard Specification ・・・・・・・・・・・・・・・・・・・・・・・・・ 1 2.2 Outline Drawing ・・・・・・・・・・・・・・・・・・・・・・・・・ 2 3.

  • Page 8: Outline Drawing

    Model ＦＭ－１６ ３． ＰＲＩＮＣＩＰＬＥ ＯＦ ＯＰＥＲＡＴＩＯＮ The Model FM-16 is designed to detect the interface between two liquids. By adjusting the position of the balance weight (reference with Table 2) , the switch will detect the interface of any liquids. This switch contain hermetically-sealed reed switch within the stem or flange and a permanent magnet in the end of the shaft.

  • Page 9: Installation

    Provide appropriate means to guard against moisture if temperature is low. Otherwise, the unit may be damaged. (2) The FM-16 should be located away from strong magnetic fields such as those produced by motors or solenoid valves. (3) Humidity and vibration are low.

  • Page 10: Installation

    ４ ． ３ Ｉ ｎ ｓ ｔ ａ ｌ ｌ ａ ｔ ｉ ｏ ｎ The FM-16 is installed horizontally from the exterior of tank at the level where you wish to detect. Please use caution during installation. Maximum all wobble ２...

  • Page 11: Wiring

    It also contribute to safety since it allows lower voltage and smaller currents to be used with the FM-16. For the relay unit Model RE7000, refer to Instruction Manual.

  • Page 12: Adjustment For Interface Detection

    ６． ＡＤＪＵＳＴＭＥＮＴ ＦＯＲ ＩＮＴＥＲＦＡＣＥ ＤＥＴＥＣＴＩＯＮ The marking on the shaft designates the setting position where the intermediate specific gravity is 0.96. First calculate intermediate specific gravity between the two liquids. Then, move the balance weight in accordance with the Table 2. For example, consider water (specific gravity : 1.0) and oil (specific gravity : 0.8).

  • Page 13: Maintenance/Inspection

    Fig. 9 ８． ＭＡＩＮＴＥＮＡＮＣＥ／ＩＮＳＰＥＣＴＩＯＮ The size of the cable inlet is G 3/4. There are two ways for connecting the sensor cable. One is fixing the cable with a cable gland. The other is connecting a conduit to the housing. In either case, an adequate sealing should be provided to prevent water or dust ingress into the housing through the sensor cable.

  • Page 14: 9．Trouble Shooting

    Re-install and re-wiring the switch after maintenance / inspection in accordance with "4.3 Installation" and "5. WIRING". ９． ＴＲＯＵＢＬＥＳＨＯＯＴＩＮＧ  CAUTION Use the following chart to troubleshoot the malfunctioning sensor. If your remedies are unsuccessful, ask Nohken for repair and replacement Table 3 Problems Possible causes...
  • Page 15 HEAD OFFICE : 15-29,Hiroshiba-cho,Suita-city,Osaka 564-0052,Japan. TEL:06-6386-8141 FAX:06-6386-8140 TOKYO BRANCH OFFICE : 67,Kandasakumagashi,Chiyoda-ku,Tokyo 101-0026,Japan. TEL:03-5835-3311 FAX:03-5835-3316 NAGOYA OFFICE : 3-10-17,Uchiyama,Chikusa-ku,Nagoya-city,Aichi 464-0075,Japan. TEL:052-731-5751 FAX:052-731-5780 KYUSHU OFFICE : 14-1,2-chome,Asano,Kokurakita-ku,Kitakyushu-city,Fukuoka 802-0001,Japan. TEL:093-521-9830 FAX:093-521-9834...

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