data sheet pick-up fnl specifications features the pick-up is a device utilizing an induction potentio- meter and designed for converting an angle of rotation into electrical signals. the input axis is mechanically turned at a certain angle and this rotation is then converted into electri- cal signals of 4 to 20ma dc. it is ideally suited for use as a displacement type transmitter. 1. high reliability use of a contactless induction potentiometer assures a long life and high reliability. 2. various specifications available the pick-up can be equipped with flameproofing, intrin- sically safe explosionproofing, a large indicator, an ar- rester and other devices. 3. easy maintenance and handling the pick-up is compact and lightweight, and zero and span adjustments plus output signal checks can all be easily made on the front panel. input angle of rotation: 0 to 22.5 , 0 to 90 or 0 to 270 excessive input rotation angle: approx. 11 (at 0 to 22.5 or 0 to 90 ) approx. 4 (at 0 to 270 ) (rotation is restricted below 0 or above 100%) input rotation torque: less than 0.02n cm{2.04gf cm} direction of rotation: counterclockwise (when viewed from a point facing the shaft extension) or clock- wise output signal: 4 to 20ma dc allowable load resistance: 0 to 550 ? (at 24v dc) power supply: 13 to 33v dc (26v dc or less with intrinsically safe explosionproofing) (27v dc or less with arrester) wiring system: 2 wire system ambient temperature: C 30 to +80 c (50 c max. with intrinsically safe explosionproofing) (60 c max. with arrester) (70 c max. with flameproofing) response speed: time constant of 0.1 sec or less zero and span adjustment width: 5% waterproof structure: jis c 0920 immersion-proof type (note that input shaft section is not of sealed structure. a 70mm dia. seal 0 ring must be used on its circumference) explosionproof structure: intrinsically safe explosionproofing jis i3ng5 flameproofing jis d2g4 front view back view date EDS8-3E apr. 10, 1992
2 fnl fundamental block diagram external dimensions (hxwxd): 150 x 183 x 167 (197)mm dimension in parenthesis is when field indicator is equipped mass (weight): approx. 2.7kg conduit connection: g1/2 finish color: silver (epoxy and polyurethane double coating) (lid alone is back, n3, when field indica- tor is equipped) optional specifications field indicator: built-in electronics casing 1.5 class 0 to 100% linear or square scale arrester: built-in electronics casing acid and alkaliproof treatment: mounting screws and washers, sus304 scope of delivery: main unit characteristics: (indicated in % of span for standard product) allowance: max. 0.5% at 0 to 22.5 max. 1.0% at 0 to 90 , or 0 to 270 linearity: max. 0.5% at 0 to 22.5 max. 1.0% at 0 to 90 , or 0 to 270 repeatability: max. 0.1% ripple content: 1.5% peak to peak (at approx. 25 khz) temperature effect (zero point): 1.2%/60 c span at 0 to 60 c power supply fluctuation (zero point): 0.04%/2v input rotation angle induction potentiometer synchronous rectifier circuit differential amplifier circuit current converter circuit signal current oscillating circuit
3 code symbols 12345678 910 description fnl 4 0 input rotation angle, rotating direction 11 12 21 22 31 41 42 0a 1a 1k 1d 1l 1g 1m 1b 1e 1h 2a 2k 2d 2l 2g 2m 3a 3k 3d 3l 3g 3m y b note: *the rotating direction refers to rotation when viewed from a point facing the shaft extension: cw: clockwise ccw: counter-clockwise rotating direction(*) remarks zero point stopper equipped (impossible without case) input rotation angle ccw cw ccw cw ccw ccw cw 0 to 90 c 0 to 22.5 c 0 to 22.5 c 0 to 270 c enclosure, indicator, arrester, output signal scale 0 to 100% linear 0 to 100% linear 0 to 100% square 0 to 100% square 0 to 100% linear 0 to 100% square 0 to 100% linear 0 to 100% linear 0 to 100% square 0 to 100% square 0 to 100% linear 0 to 100% linear 0 to 100% square 0 to 100% square yes/no explosionproof without case non-explosionproof intrinsic safety (jis i3ng5) flameproof (jis d2g4, flameproof threaded-joint metal conduit type) flameproof (jis d2g4, flameproof packing type) 4 to 20ma dc 4 to 20ma dc 4 to 20ma dc 4 to 20ma dc 4 to 20ma dc field indicator arrester output signal treatment standard acid and alkaliproof treatment
4 fnl and that at s 2 will decrease. this difference is produced and converted into an output voltage proportional to the ring displacement (input rotation angle). when the shorting ring is located at the center, the mag- netic flux at left and right is equal and the voltages produced at detecting coils s 1 and s 2 are equal. but if the ring is rotates to the right for example, then the flux at s 1 increase shortring ring ring core 1 ring core 2 detecting coil s 1 s 2 air gap exciting coil synchronous rectifier amplifier output with 24v dc power supply with 100v/24v ac power supply pick-up fnl 4 to 20ma dc distributor pxm receiving instrument 1 to 5v dc 24v dc system power supply pxj pick-up fnl 4 to 20ma dc 100v ac 100v ac or 24v ac 1 to 5v dc receiving instrument distributor pwm principle of induction potentiometer example of configuration according to power supply
5 1. product name 2. code symbols 3. angle of rotation 4. direction of rotation 5. whether explosion- proofing, arrester, indicator necessary 6. other requirements opener distributor load 0 to 550 ? 24v dc e 0 C 0 + m3 3.5 3 8 20 0.2 C 0.007 C 0.016 2.5 70 p C 0.036 C 0.060 mounting screw 4-m6 6 68 15 147 20 (30) 5 102 58 when field indicator equipped a * b conduit connection conduit connection shround (flameproof only) * cable gland up down field indicator (optional) 108 58 76 88 viewed from p o ring (for sealing) 150 190 150 details of pointer zero adjustment outline diagram (unit:mm) connection diagram related devices ordering information ? 15 g1/2 5 16 g1/2 17 ? 13 details of "b" details of "a"
fnl information in this catalog is subject to change without notice. printed in japan head office gate city ohsaki, east tower, 11-2, osaki 1-chome, shinagawa-ku, tokyo 141-0032, japan http://www.fesys.co.jp/eng instrumentation div. international sales dept. no.1, fuji-machi, hino-city, tokyo, 191-8502 japan phone: 81-42-585-6201, 6202 fax: 81-42-585-6187 http://www.fic-net.jp/eng caution on safety *before using this product, be sure to read its instruction manual in advance.
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