U-GAGE QT50U AC/DC Series—E/M Relay
Overview
Long-range programmable ultrasonic sensor with ac/dc voltage and electromechanical relay output
- Features universal supply voltage: 85 to 264V ac and 24 to 250V dc
- Offers SPDT electromechanical relay output for setting independent near and far window limits, for applications requiring high and low-limit sensing
- Available with pump-in and pump-out fill-level control on some models
- 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 | 85 to 264V ac, 50/60 Hz or 24 to 250V dc (1.5 W max. exclusive of load) |
|---|---|
| Range | 200 mm to 8 m |
| Ultrasonic Frequency | 75 kHz
Rep. rate:96 milliseconds |
| Supply Protection Circuitry | Protected against transient overvoltages |
| Output Configuration | SPDT (Single-Pole, Double Throw) electromechanical relay output. One normally open (NO) and one normally closed (NC) |
| Output Rating | Max. switching power (resistive load):2000 VA, 240 W (1000 VA, 120 W for sensors with Micro-style QD) Max. switching voltage (resistive load):250V ac, 125V dc Max. switching current (resistive load):8 A @ 250V ac, 8 A @ 30V dc derated to 200 mA @ 125V dc (4 A max. for sensors with Micro-style QD) Min. voltage and current:5V dc, 10 mA Mechanical life of relay:50,000,000 operations Electrical life of relay at full resistive load:100,000 operations Note:Transient suppression is recommended when switching inductive loads. |
| Output Protection | Protected against short circuit conditions |
| Output Response Time | Selectable 1600, 400 or 100 milliseconds |
| Delay at Power-up | 1.5 seconds |
| Temperature Effect | Uncompensated:0.2% of distance/° C Compensated:0.02% of distance/° C |
| Repeatability | 1.0 mm |
| Hysteresis | Window limit sensor models:5 mm Fill-level control sensor models: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. Sensor Configuration:Output response time and temperature compensation mode may be set using the Speed push button. Factory default settings: 400 milliseconds output response time and temperature compensation enabled |
| 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):indicates output status or TEACH mode Response indicator (bicolor Yellow/Red:indicates output response time selection |
| Construction | Transducer:ceramic/epoxy composite Housing:ABS Membrane switch:polyester |
| 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 Micro- 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 1.0% 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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