DRN/DRX-ST Strain Gage/Bridge Transducer Signal Conditioner

STRAIN GAGE/BRIDGE TRANSDUCER SIGNAL CONDITIONER - DIN Rail Mount

The INFINITY^® Signal conditioners provide high accuracy isolated measurement of strain gages, load cells and other bridge based transducers. For maximum flexibility, the units feature user configurable input types which are fully field scalable.

DRN-ST / DRX-ST
Software Selectable Input Ranges
Unipolar/Bipolar 30 mV to 100 mV
13-Bit Resolution
10 Vdc Excitation
0.2% FS Accuracy
1800 Volts Isolation
250 Vac/1 Min. Input Overvoltage Protection
..

DRN-ST / DRX-ST

Two models are available, the DRN-ST which provides an analog output that is proportional to the input signal and the DRX-ST which uses a digital RS-485 communication link. Both models can accept signals from 30 to 100 mV full scale and provide 10 Vdc reference voltage which may be used for transducer excitation. The output of DRN-ST 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-ST is a digital signal conditioner which communicates over RS-485 communication link. Up to 32 modules may be connected to a single RS-485 port stretching up to 4,000 feet. Through the use of RS-485 repeaters, additional modules may be used and further transmission distances are achievable.

SPECIFICATIONS - DRN-ST/DRX-ST
Accuracy at 25░C: ▒0.2% FS
Resolution: 13 to 15 bit
Excitation: 10 V @ 30 mA
Power Consumption: 2.4 W without excitation (100 mA @ 24 Vdc), 3 W with excitation (125 mA @ 24 Vdc)
Input Ranges: 0 to 30 to 0 to 100 mV full scale
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

Universal foot mount mates to both 32 and 35 mm DIN rails
Universal foot mount

To Order (Specify Model No.) Prices Shown in U.S. Dollars

Model No.	Description	Price
DRX-ST	Digital signal conditioner for strain gages and bridge transducers with RS-485 output	$300
DRN-ST	Signal conditioner for strain gages and bridge transducers with analog output	$345

Each unit supplied with complete operatorÆs manual.
Ordering Example: DRX-ST digital signal conditioner for strain gages and bridge transducers with RS-485 output ($300), plus CAT-285 bi-directional RS-232-RS-485 converter for DRX series ($148), $300 + 148 = $448.

ACCESSORIES

Model No.	Description	Price
*DRN-CONFIG-()**	Setup software for DRN series modules, includes serial connection cable	$100
DRN-PS-750	Power supply, 115 Vac input, 24 Vdc output @ 750 mA	$130
DRN-PS-1000	Power supply, 95-240 Vac input, 24 Vdc output @ 1 amp	$150
CAT-285	Bi-directional RS-232-RS-485 converter for DRX series	$148

*Specify "9" for 9-pin or "25" for 25-pin serial cable.