specifications are subject to change without notice (02.03.2006) 1 sensor for liquid level detection built-in amplifier, ga-as diode output: transistor npn/pnp or scr, no or nc high chemical resistance to most acids and bases vp01/03: output off when sensor in liquid vp02/04: output on when sensor in liquid no electrical or thermal connection between liquid and electrical circuit led-indication for output on power supply: dc types: 10 to 40 vdc ac types: 110 or 230 vac photoelectrics product description optical level sensor with un- modulated, infrared light for the detection of liquids. fit- ted with built-in amplifier. transmitter and receiver are completely self-contained in solid plastic housing designed for mounting into container wall. vp01/02 are available in a polysulphone housing resistant to most acids and bases. vp03/04 are avail- able in a polyamide 12 housing resistant to various solvents. type housing output status output type pnp output type selection - dc types housing material ordering no. ordering no. ordering no. ordering no. transistor npn transistor npn transistor pnp transistor pnp make switching break switching make switching break switching polysulphone vp 02 e vp 01 e vp 02 ep vp 01 ep polyamide 12 vp 04 e vp 03 e vp 04 ep vp 03 ep type selection - ac types housing material ordering no. ordering no. ordering no. ordering no. make switching break switching make switching break switching 110 vac 110 vac 230 vac 230 vac polysulphone vp 02-110tb vp 01-110tb vp 02-230tb vp 01-230tb specifications transistor npn/pnp scr output ac types rated operational voltage 10 - 40 vdc 110 vac: 100 - 121 vac, 45 - 60 hz 230 vac: 195 - 265 vac, 45 - 60 hz rated operational current continuous 200 ma 10 - 100 ma voltage drop 1.0 vdc 9.0 vac no-load supply current 12 ma 7 ma sensing accuracy liquid level difference horizontal mounting: 5 mm horizontal mounting: 5 mm vertical mounting: 2.5 mm vertical mounting: 2.5 mm ambient light 0 - 100 lux 0 - 100 lux frequency of operating cycles (f) 30 hz 5 hz vp 0 3 e p level sensors type vp, unmodulated ordering key
2 specifications are subject to change without notice (02.03.2006) specifications (cont.) mode of operation the sensor contains ir trans- mitter, receiver and amplifier with transistor or scr output. the light source is a ga-as diode emitting infrared light. the conical tip of the sensor forms an angle of 90?. this angle acts as a prism, i.e. the beam, emitted from the ga- as diode placed in one side of the sensor head, is reflect- ed internally to the phototran- sistor placed in the other side of the sensor head, provided that the tip of the sensor is si- tuated in free air. if the sensor tip is immersed in a liquid, always having a refractive index different from air, the beam will not be refracted by the prism and the photo tran- sistor will not receive any sig- nal. the sensor types can operate in oil, waste water, aqueous solutions such as beer, wine, alcohol etc. without any kind of accessory. dimensions wiring diagrams a b dc-types ac-types a mm 6.0 6.7 b mm 4.1 5.2 vp01-...tb vp02-...tb vp01e, vp03e VP01EP, vp03ep pipe thread iso 228/1-g 3/8 bn bk bu bu bk bn transistor npn/pnp scr output ac types environment degree of protection ip 67 ip 67 operating temperature -20 to +80? (-4 to +176?) -20 to +80? (-4 to +176?) storage temperature -40 to +100? (-40 to + 100?) -40 to +100? (-40 to + 100?) indication for output status led, yellow led, yellow housing and tip material vp01/02 polysulphone polysulphone vp03/04 polyamide 12 weight 90 g 90 g connection cable (pvc), 2 m cable (pvc), 2 m 4,1 mm, 3 x 0,25 mm2 5,2 mm, 2 x 0,5 mm2 pressure 10 bar at + 60? 10 bar at + 60? pipe thread 3/8?pt 3/8?pt vp, unmodulated vp02e, vp04e vp02ep, vp04ep bn bk bu bu bk bn bn bu bn bu
specifications are subject to change without notice (02.03.2006) 3 vp, unmodulated installation hints relief of cable strain protection of the sensing face switch mounted on mobile carrier to avoid interference from inductive voltage/ current peaks, separate the prox. switch pow- er cables from any other power cables, e.g. motor, contactor or solenoid cables incorrect correct the cable should not be pulled a proximity switch should not serve as mechanical stop any repetitive flexing of the cable should be avoided
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