Description
Capacitive Level Sensor for monitoring liquids. Designed for use infuel cells. The material is also suited to applications in the chemical
industry for monitoring aggressive media.MAX monitor, i. e. signal output indicates exceedance of factorypre-set switch point.
NR260-... Features Technical data
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â— high medium resistance of materials enamel, Hastelloy C4 2.4610and stainless steel 1.4571 Input voltageDC 12 V / DC 24 V (DC 9...36 V)
â— high protection class IP68 with connector Power consumptiontypically 17 mAOutput PNP transistor, high side switching,max. load max. 0.3 A (0.5 A short-time)short-circuit and overload protected
â— short-circuit proof switching output 1 A, plus switching
â— MAX sensor
â— switch point factory pre-set for the fellowing media:
-de-ionised water (conductivity < 4,2 µS/cm): 28 mm ±2 mm
-tap water (conductivity ≈300 µS/cm): 22 mm ±2 mm
-other media upon request; switch point adjustment via programmable interface with free-wheeling diode Voltage drop < 300 mV at 1 A Ambient temperature -30 °C...+80 °CMedium temperature -30 °C...+130 °C (max. +150 °C short-time) Response delay approx. 150 ms Mode of operationMAX monitoring Reverse polarity protectionfitted between plus and minus pole
Degree of protection IP68 with connector to IEC 529/DIN 40050 Type No.NR260 - U202 - EM21E15
Ordering information
Pressure resistance 25 bar/367.5 PSI Connection screw terminals max. 1 mm
2 (AWG 18)Material probePA12-Gf fittingV4A, DIN 1.4571/AISI 316 Tisealing (O ring)Viton
® connectorPA6-3-TVibration 10 Hz...57 Hz±1.6 mm(sinusoidal)57 Hz...2000 Hz10 g
(IEC 60068-2-6)frequency change: max. 1 octave/minute 3 directions:X, Y, Z (1 cycle each)Shock22 g, 20 ms, half-sine, all-side (IEC 60068-2-27) Mounting method process connection G 3/4 A Mounting position user-defined Massapprox. 370 g
mark to demonstrate compliance with applicable directive. Issue A www.e-t-a.com 2 - 27