Made in Japan
Manufacturer: Tokyo Keiso
Model: FW-9000NN Series

FW9000NN Series is the successor to the well received and widely used FW-9000 series for its reliability and variety of long term application.
Using the most of reliable, durable and highly accurate mechanism of FW-9000, FW9000NN has become more reliable and user-friendly by introducing up-dated electronics etc. (SIL2 compatible). Consequently, FW9000NN has the interchangeability with the cur-rent FW-9000 series in terms of installation methods and interfaces with other equipment. Its noise resistivity and lightening protection performance have been improved significantly. The intensified automatic self-diagnosis and self-adjustment functions have made FW9000NN more user friendly. Including ATEX certified version intended for use in potentially ex-plosive atmosphere FW9000NN is ready to serve world-wide users.

Applications

• Bonded tanks are essential for applications like LPG, LNG, petroleum, fuels, water supply, sewage systems, chemicals, power plants, and food and beverages. They support versatile applications such as various kinds of liquid measurement, including 2-liquids interface and point measurements of liquid density. Additionally, these tanks enable multi-point measurement of liquid density for profile presentation.

Features

• Those items marked as ■ are added or improved features from existing models.■ For bonded tanks
  The increased noise resistivity and lightening protection assure you reliable operation as complying with superb level 4 or more stipulated in IEC61000-4,5.■ The FW9000NN, having the same dimensions and materials as existing models, meets Japanese explosion-proof requirements and is interchangeable with existing FW-9000 models to simplify replacements. You can set parameters without opening the housing, thanks to four magnet sensors attached to the indicating windows. Additionally, it is compatible with a wide range of power supplies from 100 to 240 VAC, 50/60Hz.
  • Complying with RoHS requirements.
  • Eco-friendly low power consumption as small as Max. 25VA.
  • Covers high design pressure up to 3.0 MPa.
  • Electronic circuits are installed in the electric compartment which is completely isolated from drum compartment.
  • Can be connected to the existing spot type and multipoint aver-aging temperature sensors.
  • Precision stepping motor control with microprocessor has realized amazingly accurate measurement.
  • Highly reliable operation with powerful self-diagnosis functions (SIL2).
  • High durability with non-contact type balancer without using slip ring.
  • In has addition to the high-speed serial data communication, FW9000NN have various communication tools which are compatible to TOKYO KEISO’s existing well-established transmitters. Therefore, FW-9000NN serves with ease for your renovation and replacement of the existing tank monitoring system.
  • In combination with DIR110NN series, Max. 6 contact signals transmitted between field and control room. Monitoring and control of equipment around the tank yard are also possible in addition to liquid level measurement.
  • 4 to 20 mA signals such as pressure signal can be digitalized and retransmitted
  • Analog 4 to 20mA signals such as level and temperature can be output additionally to meet with high-speed data processing carried by host computers.

  Specifications

• Mechanical specifications
  

  Liquid level detection methods	Digital controlled electric servo balancing type consisting of small size displacer, measuring wire and wire drum
  Measuring range	Maximum: 60m
  Temperature	Liquid: -200 to +300°C Ambient: -20 to +55°C (Temperature of main body)However, the liquid and the moisture inside the wire drum room shall not freeze over, nor adhere. *Not suitable for the use environment where the mass of displacer changes.
  Pressure	Max: 3MPa
  Accuracy	(1) Liquid level measurement ±0.4mm(2) Interface measurement In case of density difference of 0.2g/cm³ ±(2.7)mm(3) Density measurement: ±0.005g/cm³ *Under reference conditions.
  Process connection	3″, 4″, 5″, 6″ JIS5K/10K/20K/30KRF, ANSI150/300, JPI150/300 Flange connection
  Displacer guiding	Stand pipe method as standard, non-guiding and guide wire methods as an option

  Mechanical specifications

  Inputs	a. Temperature: Pt100Ω spot temp. sensor, Average temp. sensor, multi-spot average temp. senor b. Analog signal: 4 to 20mA DC 1point. Conversion accuracy ±0.5％ F.S.
  Outputs	a. Serial data output to control room b. Serial data output to explosion-proof tank side receiver c. Contact outputs Numbers of contacts: 2 Combination: SPST (1a or 1b) d. Analog outputs: 2 points of 4 to 20mADC for level and temperature
  Presentation	2 indication parts by LCD
  Enclosure	Water-tight (FW9□□□NNW) or Flameproof Exd II CT6 (FW9□□□NNE)
  Power supply	AC100 to 240V、50/60Hz
  Consumption	Maximum 25VA