Selected parameters SYSTEM Level HOUSING 3/8" pipe tread SENSING RANGE Contact CONNECTION M12 plug DC OUTPUT DC NPN MATERIAL Metal Others SENSING RANGE Direct detection HOUSING 3/8" x 81,5 mm MATERIAL NPB
Photoelectrics Level Sensors TypesVP, Modulated, Metal Housing • Modulated light • Built-in amplifier • Output: NPN or PNP, 4-wire (NO & NC) • Housing: Stainless steel or nickel plated brass • Tip: Polysulphone or glass • High chemical resistance to most acids and bases • Liquid and electrical circuit completely isolated • Power supply: DC models 10 to 40 VDC Product Description Ordering Key VPB1M NA-1 Optical level probe with modulatedinfrared lightfor detection of liquids. Self- contained unit has built-in amplifier. Separate transmit- ting and receiving elements sealed behind the tip. Designed for direct mounting throughthe wall ofa tank. The polysulphone tip is espe- cially resistant to most acids and bases. Type: Refraction principle Housing material Tip material Light source Output type Connection TypeSelection Housing material Tip material Ordering no.Ordering no.Ordering no.Ordering no. NPN, Make &NPN, Make &PNP, Make &PNP, Make & Break switchingBreak switchingBreak switchingBreak switching CableM12 Plug CableM12 Plug Stainless steel PolysulphoneVPA1MNAVPA1MNA-1 VPA1MPA VPA1MPA-1 Stainless steel GlassVPA2MNAVPA2MNA-1 VPA2MPA VPA2MPA-1 Nickel plated brassPolysulphoneVPB1MNAVPB1MNA-1 VPB1MPA VPB1MPA-1 Nickel plated brassGlassVPB2MNAVPB2MNA-1 VPB2MPA VPB2MPA-1 Specifications Rated operational voltage10 - 40 VDC Ripple≤ 10 V Output current Continuous≤ 200 mA No-load supply current ≤ 7 mA Voltage drop ≤ 2.5 VDC Protection Reverse polarity, short circuit, transients Ambient light≤ 50.000 lux Transient voltage 1 kV Delay after power-on 20 ms Operating frequency ≤ 30 Hz Indication for Output ON LED, yellow No LED indication on plug types Sensing accuracy Liquid level difference Horizontal mounting: ± 5 mm LED indication on plug typesVertical mounting: ± 2.5 mm Pressure ≤ 10 bar at +60ºC (+ 140ºF) Environment Degree of protectionIP 67 Operating temperature-20° to +80ºC (-4° to +176ºF) Storage temperature -40° to +100ºC (-40° to +212ºF) Liquid temperature+100ºC (+212ºF) for ≤ 60 s Housing material Stainless steel AISI 303 or nickel plated brass Cable 2 m, 4 x 0.3 mm2, grey, Ø 5.2 oil resistant PVC Resistance ≤ 100 Ω, extension possible Weight 90 g Tightening torque Stainless steel30 Nm Nickel plated brass 30 Nm External thread 3/8” (ISO 228/1) CE-marking Yes Specifications are subject to change without notice (02.03.2006) 1
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