an ultrasonic liquid level meter measures the liquid level by the propagation time of the ultrasonic pulses emitted out of the ultrasonic detector are reflected on the surface of the measurement object and are received as echoes by the detector again. it provides high reliability and it permits easy installa- tion, running and maintenance, as it does not make con- tact with the measurement object and it is free of mechani- cal moving parts. it deals with uses of a broad range including water level measurement of water, wastewater, tide level, rivers and reservoirs and level measurement of highly viscous liquid in chemical tanks, slurry agitation tanks, roll mills and food tanks. features 1. no liquid contact permits easy installation and maintenance. 2. detector of waterproof structure and of excellent cor- rosion resistance it is of no problem against adhesion of water drops and splashes, and it is optimum for wastewater, alkali, acid and high viscosity liquid. 3. not affected by fixed reflection noise not affected by obstacles such as projections of de- tector mounting area, walls and ladders because of the dgl (dynamic gain limit) function that automatically learns the noise level at all times and masks noise so that no noise is detected. 4. minimum influence of electrical noise not affected by electrical noise or noise from agitating blades, as such noise is largely reduced by statistical processing. 5. use of high gain amplifier permits use at a pump well involving scum that could be hardly measured with conventional meters and also at a place of large attenuation such as sludge storage tank. specifications converter (type: fqh) structure: ip65 material grade: aluminum alloy coating color: blue (cover), silver (case) accuracy: 1%/fs or better output: 4 to 20ma dc (insulated, load resistance 0 to 1k ? ) data sheet fqh-2,fqg-2,fly ultrasonic liquid level meter display: lcd display (16 characters, 2 lines, with back light) level measured value (m, %), detector peripheral temperature, ultrasonic wave received signal intensity, etc. are dis- played. dumping: 2 to 600 seconds (once every second) power failure recovery processing: memory backup with lithium cell (valid for about 10 years) power supply: 100 to 240v ac, 50/60hz or 20 to 30a dc power consumption: 35va or less (ac power supply) 12w or less (dc power supply) contact output: upper limit and lower limit alarms, error alarms, up to 8 points (optional), relay contact output, contact capacity ac 250v, 5a, normally open contact working ambient temperature: -10 to50?c working ambient humidity: 90% rh or less external dimensions: h320 x w240 x d137mm mounting method: wall surface mounting mass: about 7 kg lightning measure: power supply, output signals and alarm outputs are provided with arresters others: provided with self-diagnostic function detector (type: fqg) structure: ip67 composition: with built-in preamplifier, transmitter and detector (fqg) converter (fqh) date EDS7-64 mar. 10, 2003
fqh-2,fqg-2,fly resistance thermometer bulb measuring distance: up to 12 m (blind distance: 0.3 m) material grade: heat resistant pvc (color: gray) matching flange: jis 5k 150a or larger external dimensions: ?40 x 180mm mass: about 1.2 kg lightening measure: with arrester working ambient temperature: -20 to 80?c working ambient humidity: 95% rh or less configuration typical detector installation * detectors are of watertight structure. avoid exposure to direct sunlight and rain by means of a roof or the like, when they are used outdoors. uses dedicated cable (between converter and detector) (type: fly5) twisted paired shield cable 2 pairs x 0.5 mm2 shield (length up to 300 m) outside diameter: ?0.5mm (max ?1mm) cable end treatment: with m3.5 crimp-style terminal (at both ends) converter dedicated cable (up to 300m) blind distance (0.3m) full level output 20ma dc zero level output 4ma dc detector output signal (dc4 to 20ma) error alarm optional upper limit, lower limit alarms power supply (100 to 240v ac or 24v dc) zero-point distance (up to 12m) span (up to 11.7m) *1 error alarm an alarm is output on occurrence of set numeric value data error, cable open circuit or reception error. (also indicated in lcd display screen.) level measurement of waterworks, wastewater, rivers, dams and reservoirs and tide level level measurement of food, high viscosity fluid and chemical storage tanks level measurement of dehydrated slurry and sludge tanks level measurement of agitation tanks such as slurry agitation tanks level measurement of high viscosity fluid in tanks such as roll mills 400 mm min. ?00 200 mm max. 150a flange or larger wave guide pipe of ?00 or larger sound absorbing cartridge 200 mm max. [mounting with flange] [mounting with square flange] [mounting on wave guide] * side wall must be free from standout and sticking material * inquire us separately regarding wave-guide pipe and sound absorbing cartridge. ?00 or more
code symbols outline diagram (unit : mm) specification structure immersion-proof application level meter for liquid/slurry f 1 power source 100 to 240 v ac, 50/60 hz 20 to 30 v dc 2 0 q h f- 12345678 101112 9 current output (4 to 20 ma dc) 1 point 1 wiring port with waterproof gland with union (for prica) gland y a tag indication no yes y t contact closure command none 5 points 8 points 0 5 8 3 7 specification measurable distance (frequency) 12 m (30 khz) max. structure heat-resisting pvc immersionproof 1 a resistance bulb incorporated 2 0 q g f- 12345678 10 9 tag indication no yes y t detector fixture none l-shaped fixture, mounted on 1 inch pipe l-shaped fixture, suspended from flat plate 0 1 2 1 detector-converter cable length 5 m 5 m steps up to 100 m. 10 m steps for 100 to 300 m. (ex.: 150 for 150 m.) 300 m applicable detector ultrasonic level meter detector 0 3 0 0 5 0 5 l y5 1 f 12345678 specification converter (type: fqh) detector (type: fqg) . if provided with waterproof gland . * adjustable to 450 mm 25 2- 12 3 25 70 420* 134 100 150 50 12 12 320 240 74 . if provided with gland for prica tube (jis c8309, no. 17) 2- 12 95 450 12 12 74 (unit: mm) 4- 7 mounting holes main nameplate tag nameplate ball chain (sus305) main nameplate (sus304) tag nameplate (sus304 except where noted) cable lead-in port (nylon 66) g1/2 124 120 90 140 180 28 (unit: mm)
fqh-2,fqg-2,fly scope of delivery converter main unit, detector main unit, dedicated cable (of specified length) what are specified at the time of placement of an order 1. detector type fqg_____________ 2. converter type fqh_____________ 3. dedicated cable fly 4. span distance __________m 5. zero-point distance __________m 6. tag no. designation ______________ connection diagram precautions against obstacles detector fixture (option) shelf (1) mount the detector 400mm or more away from the side wall (2) get at least of 8 away from shelf, step or standout, if any 400mm or more e f 90 100 4-? 4-?, or m6 tap 42 90 60 170 ? ? cable lead-in [mounting size] (boring of flanges, etc.) l-shaped fixture made of sus304 on 1 inch pipe or suspended from flat plate fixture l n a r out1 out3 out2 t sh ac line converter (fqh) detector (fqg) sensor current b c d e a b c d e + - + - + - al1 al3 al2 alarm (option) a1 b1 a2 b2 a3 b3 al4 a4 b4 al5 a5 b5 al6 a6 b6 al7 a7 b7 al8 relay output 8 high (low) limit alarm a8 b8 relay output 3 high (low) limit alarm relay output 4 high (low) limit alarm relay output 5 high (low) limit alarm (terminal screw m3.5) (terminal screw m3.5) relay output 1 fa il alarm (device error alarm) current output (4 to 20 ma dc) source 100 to 240 v ac, 50/60 hz ac power connection white/blue blue dedicated cable (fly 5) (twisted pair shield cable) relay output 2 high (low) limit alarm relay output 6 high (low) limit alarm relay output 7 high (low) limit alarm white/yellow ye llow white/blue blue white/yellow ye llow 1 2 dc dc power connection 20 to 30 v dc 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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