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U-GAGE QT50U DC Series—Analog
Overview
Long-range programmable ultrasonic sensor with dc voltage and analog output
- Additional model available for use with FlexPower systems
- Provides 10 to 30V dc supply voltage with selectable 4-20 mA or 0-10V dc analog output
- Automatically scales the analog output over the width of the programmed sensing window
- Monitors continuously
- Senses extended range of up to 8 m
- Features ultrasonic dead-zone of only 2.5% of the total range—75% less than comparable product
- Features a completely sealed, shock-resistant housing ideal for monitoring levels of liquids as well as solids
- Available in chemically resistant models with a Teflon coating to protect the transducer
- Compensates for temperature, for greatest sensing accuracy
- Simplifies setup with push-button and remote TEACH-mode programming
- Shows status during setup and operation, using highly visible LEDs indicators
Product Specifications
| Supply Voltage and Current | 10 to 30V dc (10% max. ripple) @ 40 mA max. (exclusive of load) |
|---|---|
| Range | 200 mm to 8 m |
| Ultrasonic Frequency | 75 kHz
Rep. rate:96 milliseconds |
| Supply Protection Circuitry | Protected against reverse polarity and transient overvoltages |
| Output Configuration | Voltage sourcing:0-10V dc Current sourcing:4-20 mA |
| Output Rating | 0-10V dc models: Minimum load resistance:500 ohms
Minimum required supply voltage for full 0-10V output span:[(1000/RLOAD)+13]V dc
4-20 mA models:Maximum load resistance:1 k ohms or [(V supply/0.02) - 5] ohms, whichever is lower
Minimum required supply voltage for full 4-20 mA output span:10V dc or [(RLOAD x 0.02) + 5]V dc, 4-20 mA output calibrated at 25° C with a 250 ohms load.
|
| Output Protection | Protected against short circuit conditions |
| Output Response Time | 100 to 2300 milliseconds |
| Delay at Power-up | 1.5 seconds |
| Temperature Effect | Uncompensated:0.2% of distance/° C Compensated:0.02% of distance/° C |
| Linnearity | +/- 0.2% of span from 200 to 8000 mm; +/- 0.1% of span from 500 to 8000 mm (1 mm minimum) |
| Repeatability | 1.0 mm |
| Minimum Window Size | 20 mm |
| Adjustments | Sensing window limits:TEACH-Mode programming of near and far window limits may be set using the push buttons or remotely using TEACH input. |
| Indicators | Green Power ON LED:indicates power is ON Red Signal LED:indicates target is within sensing range, and the condition of the received signal TEACH/Output indicator (bicolor Yellow/Red): Yellow:target is within taught limits
Red:sensor is in TEACH mode
OFF:target is outside taught window limits
|
| Remote TEACH | To TEACH:connect gray or yellow wire to 0 to +2V dc; impedance 12 k ohms |
| Construction | Transducer:ceramic/epoxy composite Housing:ABS/Polycarbonate Membrane switch:polyester Lightpipes:acrylic |
| Environmental Rating | Leakproof design, rated IEC IP7; NEMA 6P |
| Connections | 5-conductor (with drain) 2 m or 9 m shielded PVC-jacketed attached cable, or 5-pin Euro- or Mini-style quick-disconnect fitting. QD cables are ordered separately. |
| Operating Conditions | Temperature:-20° to +70° C Relative humidity:100% |
| Vibration and Mechanical Shock | All models meet Mil. Std. 202F requirements. Method 201A (Vibration: 10 to 60 Hz max. double amplitude 0.06”, maximum acceleration 10G). Also meets IEC 947-5-2 requirements: 30G, 11 milliseconds duration, half-sine wave. |
| Temperature Warmup Drift | Less than 0.8% of sensing distance upon power-up with Temperature Compensation enabled |
| Application Note | Objects passing inside the specified near limit (200 mm) may produce a false response. |
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