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Overview

Model U3W Universal Inline Amplifier with 4 mA to 20 mA Output and 18 Vdc to 32 Vdc Input.
The Model U3W amplifier supplies a highly regulated bridge excitation voltage for the transducer and converts the millivolt signal of the transducer to a 4 mA to 20 mA three-wire current output signal. The Universal In-line features two selectable excitation voltages, programmable gain settings, a wide adjustment range on the zero, and a buffered solid-state shunt cal relay for quick calibration.
060-6827-03 Plastic or Die-Cast Amplifiers - Honeywell


Technical Specifications

Order Code BE125EL,51J
Number of Channels 1
Case Material Plastic or Painted Aluminum
Mounting #6 or #8 screws
Sealing IP66 or NEMA 4
Temperature (Operating) -15 °C to 71 °C [5 °F to 160 °F]
Transducer Type Bridge-based sensor
Transducer Excitation 3 Vdc or 5 Vdc @ 70 mA
Supply Voltage 18 Vdc to 32 Vdc
Current Draw 70 mA
Zero Adjustment Range - Coarse ±70 %
Zero Adjustment Range - Fine ±25 %
Span Adjustment Range 0.5 mV/V to 6.6 mV/V, ±25 % fine adjustment
Linearity 0.02 % of full scale
Output 4 mA to 20 mA (three wire)
Frequency Response (-3 dB) dc: 7000 Hz with 350 ohm bridge; dc: 5000 Hz with 5000 ohm bridge
Rise Time (0 % to 90 %) 54 ms with 350 ohm bridge; 78 ms with 5000 ohm bridge
Signal-to-Noise Ratio 65 dB
dc Power Supply Rejection Ratio >110 dB
Shunt Calibration Solid statate relay on board
Product Dimensions Plastic: 63,5 mm H x 96,25 mm L x 53,34 mm D [2.5 in H x 3.75 in L x 2.1 in D]; Aluminum: 76,2 mm H x 127 mm W x 63,5 mm D [3.0 in H x 5.0 in W x 2.5 in D]
UNSPSC Code 32101514
UNSPSC Commodity Amplifiers
Availability Global
Series Name U3W

Technical Specifications

Order Code BE125EL,51J
Number of Channels 1
Case Material Plastic or Painted Aluminum
Mounting #6 or #8 screws
Sealing IP66 or NEMA 4
Temperature (Operating) -15 °C to 71 °C [5 °F to 160 °F]
Transducer Type Bridge-based sensor
Transducer Excitation 3 Vdc or 5 Vdc @ 70 mA
Supply Voltage 18 Vdc to 32 Vdc
Current Draw 70 mA
Zero Adjustment Range - Coarse ±70 %
Zero Adjustment Range - Fine ±25 %
Span Adjustment Range 0.5 mV/V to 6.6 mV/V, ±25 % fine adjustment
Linearity 0.02 % of full scale
Output 4 mA to 20 mA (three wire)
Frequency Response (-3 dB) dc: 7000 Hz with 350 ohm bridge; dc: 5000 Hz with 5000 ohm bridge
Rise Time (0 % to 90 %) 54 ms with 350 ohm bridge; 78 ms with 5000 ohm bridge
Signal-to-Noise Ratio 65 dB
dc Power Supply Rejection Ratio >110 dB
Shunt Calibration Solid statate relay on board
Product Dimensions Plastic: 63,5 mm H x 96,25 mm L x 53,34 mm D [2.5 in H x 3.75 in L x 2.1 in D]; Aluminum: 76,2 mm H x 127 mm W x 63,5 mm D [3.0 in H x 5.0 in W x 2.5 in D]
UNSPSC Code 32101514
UNSPSC Commodity Amplifiers
Availability Global
Series Name U3W

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
U3W_highres_photo Photo English 357KB
U3W_lowres_photo Photo English 67KB
Model U3W Bridge Based Sensor In-Line Amplifier Datasheet Datasheet English 240KB
Instrumentation Accessories Datasheet Datasheet English 641KB
Oil and Gas Brochure Brochure English 4MB

Product Features

  • Strain gage sensor amplifier
  • 18 Vdc to 32 Vdc supply voltage
  • NEMA 4 housing
  • Selectable excitation voltages: 3 V or 5 V @ 70 mA
  • 4 mA to 20 mA analog output
  • Increases signal-to-noise ratio in noisy environments
  • Effects of voltage drops in excitation sources are eliminated
  • Signals may be sent to the data systems from low impedence sources

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