UAS3
- Integrated trip amplifier
- 12-bit analog-digital converter
- For pressure, temperature, level and flow
- Monitors and controls any sensor with analog output
- Ideal companion to our 400-series pressure transducers
- Four switchpoints in a single, compact unit
- Easy-to-read LCD display with scalable bar graph
- UL/CSA approved
Barksdale's UAS3 Electronic Trip Amplifier and controller is the perfect companion to any sensing device that provides a 4-20 mA or 0-10 VDC analog output. Our UAS3 offers the unique ability to switch four discrete circuits in a single, compact unit. In addition to its four SPDT relays, the UAS3 comes standard with either a 4-20 mA or a 0-10 VDC analog output and a digital display with 1/2" tall, easy-to-read digits. A scalable bar graph display provides even greater visibility. Analog transducer outputs are scalable from 25% to 100% of the full adjustable range. A 12-bit microprocessor provides built-in diagnostics and allows for switch time delays and pressure cycling up to 100 times per second. Display units may be readily toggled between psi, bar, kPa, °C and °F units. For applications requiring precision control, multiple switchpoints, and extremely long life, the UAS3 Series is the ideal solution.
Specifications
General Specifications*
| Accuracy: | 0.2% f. s. |
| Linearity Error: | ±0.2% f. s. at 77°F (25°C) |
| Repeatability: | ±0.01% f. s. |
| Material: Housing (Electronics): Seal (Housing): Keypad: |
Cast aluminum NeopreneR Polyester fi lm |
| Measuring Ranges: | (free scalable): -9999 to +9999 |
| Measuring Principle: | Amplifier with 12 Bit A/D-converter |
| Electrical Connection: | Plug-in, terminal strip with 14 slots for 1.5mm2 , 14 AWG slots |
| Sensor Connection: | Plug 3-pin acc. to DIN 43650 / meter including electrical plug with molded cable |
| Cable Gland: | 1 x PG 13.5 side entry – standard |
| Power Supply: | 18 – 30 VDC, reversed polarity protected |
| Power Consumption: | appr. 350 mA at Ub = 24 VDC (without load) |
| A/D-Converter: Resolution: Scanning Rate: |
12 bit (4096 steps per measuring span) 1000 / s |
| Analog Inputs: Current Input: Voltage Input: Resistance Input: Temperature: |
4 – 20 mA 0 – 10 VDC 0.5 – 100 kOhm PT100 element acc. to IEC751 |
| Analog Output: Current Output: Load: Load Influence: |
4-20 mA Max. Rl = (Ub-12 V) / 20 mA Rl = 600 Ohm at Ub = 24 VDC 0.3% / 100 Ohm 1 ms 0 – 10 V DC max. 10 mA, short circuit-proof 25% to 100% f. s. |
| Switching Output(s): Contact Rating: Cycles: |
max. 120 VDC / 250 VAC max. 120 W / 1250 VA 1 million at 24 VDC / 2 A max. 20 / s 0 – 9.9 s adjustable 1 mS S1 to S4 on LCD display |
| Digital Display: Bar Graph: Display Range: Display Rate: Display Unit: |
8-digit 14-segment LCD display, height 1/2 in (12 mm) 20-segment -9999 to +9999 (scalable) 4/S psi / bar / kPa / °C / °F |
| Operating Elements: | Keypad with easy response push buttons |
| Temperature Range: Electronics: Storage: |
14° to 158°F (-10 °C to + 70 °C) -22° to 176° F (-30°C to + 80°C) |
| Temperature Influence: | ±0.05% f. s. / 10K |
| Compensation Range: | 14° to 158°F (-10° to +70°C) |
| Protection Class: | IP65 |
| Dimensions (Housing): | 3-15/16 W X 5-5/16 H X 3-3/16 D (100 W X 135 H X 80 D) |
| Additional Features: | 8-digit 14-segment LCD display with bargraph and trend indication, microcontroller-controlled, self monitoring, all parameters are configured by keypad, selective keypad lock, high accuracy, quick scanning rate (1 ms). |
| Weight: | appr. 2 lb (1080 g) |
| * See product confi gurator for additional options. | |
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