美国OMEGA欧米茄DRST-DC通用单极/双极直流信号发送器
产品描述
Application
? Fast < 20 ms response time for measuring signals produced by torque, position, current & acceleration sensors.
? User configurable bipolar or unipolar I/O means the DRST-DC is suitable for nearly any DC voltage or current conversion.
? Freely programmable between ±300 VDC and ±100 mA. The excitation source allows measurement of a 2-wire or 3-wire transmitter, or a potentiometer.
? Converts narrow bipolar inputs to wide bipolar or unipolar outputs, e.g., ± 1 volt input = ± 10 volt or 4 to 20 mA output.
? Configurable input limits control the output value for increased safety.
? ±20 VDC buffered voltage output for controlling devices like the PVG 32 valve (6 to 18 VDC).
Technical Characteristics
? The latest analog and digital techniques are used to obtain maximum accuracy and immunity to interference.
? Possibility of output safety read back by selecting 4 to 20 mA output.
? The current output can drive up to 1000 Ω, with an adjustable response time of 0.0…60.0 seconds.
? Exceptional mA output load stability of < 0.001% of span/100 Ω.
? Meets the NAMUR NE21 recommendations, ensuring high accuracy in harsh EMC environments.
? Meets the NAMUR NE43 recommendations, allowing the control system to easily detect a sensor error.
? Each unit is tested to a high 2.3 kVAC, 3-port galvanic isolation level.
? Excellent signal to noise ratio of > 60 dB.
Mounting/Installation/Programming
? Very low power consumption means units can be mounted side by side without an air gap – even at 60°C (140oF) ambient temperature.
? Configuration, monitoring, 2-point process calibration and more are accomplished using either the DRSL-Display detachable display or the DRST-CM detachable digital communication enabler.
? All programming can be password-protected.
Measures Uni-/Bipolar DC Current and Voltage Signals
Passive/Active Current Output and Buffered Voltage Output
Extremely Good Signal Dynamics for Spans from 25 mV to 300 VDC
Programming, Process Monitoring and Diagnostics Via DRST-CM
Fast < 20 ms Response Time and Excellent 0.05% Accuracy
Universally Powered by 21.6-253 VAC / 19.2-300 VDC