UB800-18GM40A-I-V1
Ultrasonic Sensor – Complete Model Information Sheet
(English Extract & Summary)

1. Device TypeM18 short-body ultrasonic sensor, single-head system, analog output.
2. Order Code / ModelUB800-18GM40A-I-V1
3. Sensing CharacteristicsSensing range .............................................. 50 – 800 mmAdjustable window .................................... 70 – 800 mmDead band ................................................... 0 – 50 mmTransducer frequency ................................. ≈ 255 kHzResponse delay ........................................... ≈ 100 msResolution ................................................... 0.4 mm (at 800 mm span)Repeat accuracy .......................................... ±0.5 % of full scaleCharacteristic deviation .............................. ±1 % of full scaleTemperature influence ............................... ±1.5 % of full scale (–25 … +70 °C)
4. Electrical SpecificationsOperating voltage UB ................................ 10 – 30 V DC (ripple ≤ 10 %)No-load current I0 ...................................... ≤ 20 mAAnalog output ............................................. 4 – 20 mA, short-circuit & overload protectedLoad impedance ........................................ 0 – 300 Ω (UB ≥ 10 V)0 – 500 Ω (UB ≥ 15 V)Program / Teach input ............................... 1 × (–UB … +1 V = low, +4 V … +UB = high)Input impedance ........................................ > 4.7 kΩTeach pulse duration ................................. ≥ 1 sDefault window .......................................... A1 = 70 mm, A2 = 800 mm (rising ramp)
5. IndicatorsGreen LED ................................................. Power ONYellow LED ................................................ Solid: object inside windowFlashing: programming active / object detectedRed LED .................................................... Solid: errorFlashing: programming active / object not detected
6. Mechanical DataHousing material ........................................ Brass, nickel-platedTransducer face ......................................... Epoxy resin + hollow-glass-sphere mix, PU foam, PBT coverDimensions ................................................. Ø 18 mm × 57 mm longMass ............................................................ 25 gConnection ................................................. M12 × 1, 4-pin male connectorDegree of protection .................................. IP67
7. Environmental LimitsAmbient temperature ................................. –25 … +70 °C (operation)Storage temperature .................................. –40 … +85 °C
8. Standards & ApprovalsIEC/EN 60947-5-2:2020IEC/EN 60947-5-7:2003cULus Listed, Class 2 power sourceCCC exemption (≤ 36 V)
9. Wiring (EN 60947-5-2 colours)Pin 1 BN (brown) ........................................ +UBPin 2 WH (white) ........................................ Teach inputPin 3 BU (blue) .......................................... 0 VPin 4 BK (black) ........................................ Analog 4 – 20 mA output
10. Programming / Teach-InTwo boundaries (A1, A2) define the analog window.Rising ramp (A1 < A2) or falling ramp (A2 < A1) selectable.Teach lock: 5 min after power-on changes are blocked; power-cycle to re-enter teach mode.Optional adapter: UB-PROG2 (button A1 = –UB, A2 = +UB).
11. Typical ApplicationsLevel measurement, roll-diameter monitoring, web-loop control, high-speed counting, presence check in dusty or transparent-object environments.
12. Packaging & AccessoriesIndividual box, M12 mating connector (order separately): e.g. V1-W-2M-PVC (2 m PVC cable), V1-W-5M-PUR, etc.