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PROCESS
INPUTS SIGNAL CONDITIONER
The INFINITY®
signal conditioners provide high accuracy isolated measurement of process
signals. For maximum flexibility, the units feature user configurable
input types which are fully field scalable.
Two models are available, the DRN-PR which provides an analog output that is proportional to the input signal and the DRX-PR which uses a digital RS-485 communication link. Both models can accept unipolar and bipolar signals from 400 mV to 10 Vdc full scale. A 0-20 mA current range is also available. The DRN/DRX-PR also contains a 14 Vdc reference voltage which may be used for transducer excitation. The output of DRN-PR can be user set for 0-10 V, 4-20 mA or 0-20 mA. Input scaling and configuration of other operating parameters is accomplished by connecting to a standard RS232 port of a personal computer and using the DRN-CONFIG, Windows-based setup software. Once configured, the settings may be stored in non-volatile memory and the unit disconnected from the PC. The DRX-PR is a digital signal conditioner which communicates over an RS-485 communication link. Up to 32 modules may be connected to a single RS-485 port stretching up to 4,000 ft. Through the use of RS-485 repeaters, additional modules may be used and further transmission distances are achievable. SPECIFICATIONS Accuracy at 25░C: ▒0.1% FS Resolution: 11 to 14 bit Excitation: 14 VDC @ 25mA Power Consumption: 2 W (84 Ma @ 24 vDC) without excitation (100 mA @ 24 Vdc), 3 W with excitation (125 mA @ 24 Vdc) Input Ranges: Uni/bipolar, 400 mV to 10 Vdc; 0 to 20 mA full DRX Output: 2-wire (half duplex) RS-485 DRN Output: 0 to 10 V @ 10 mA max; 0 to 20 mA or 4 to 20 mA, 10 V compliance To Order (Specify Model No.) Prices Shown in U.S. Dollars
Ordering Example: DRX-PR digital signal conditioner with RS-485 output for process signals ($275), plus DRN-PS-750 power supply, 115 Vac input, 24 Vdc output @ 750 mA ($130), $275 + 130 = $405. ACCESSORIES
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Software Selectable Input Types
and Ranges
