Temperature Instrumentation - Back to Product Guide
Made in Santa Ana, CA
Electromagnetic Compatibility
Year 2000 Compliant
INFINITY Logo RTD SIGNAL CONDITIONER
DRN-RTD / DRX-RTD
Software Selectable Input Types
100ohm, 500ohm, 1000ohm Pt RTDs
0.1░C Resolution
▒0.5░C Accuracy
1800 Volt Isolation
Serial I/O, A/IN, DI/O
Manuals
DRN-RTD / DRX-RTD
DIN RAIL MOUNT
RTD Signal Conditioner
Mechanical Reference
Price List

The signal conditioners provide high accuracy isolated measurement of RTD temperature sensors. For maximum flexibility, the units feature user configurable RTD types which are fully field scalable.

Two models are available, the DRN-RTD which provides an analog output that is proportional to the input signal and the DRX-RTD which uses a digital RS-485 communication link. Both models can accept 2, 3, or 4 wire 100ohmPT, 500ohmPT and 1000ohmPT RTDs.

The output of DRN-RTD can be user set for 0-10V, 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-RTD 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: ▒0.5░C
Input Types: Platinum RTD, 100ohm, 500ohm or 1000ohm element (2, 3 or 4 wire, 385 or 392 curve)
Resolution: 0.1░C
Power Consumption: 2.4 W (100 mA @ 24 Vdc)
Input Range: -200 to 850░C (-328 to 1562░F)
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
Model No.
Description
Price
DRX-RTD
Digital signal conditioner with RS-485 output for process signals
$250
DRN-RTD
Signal conditioner with analog output for process signals
$355
Each unit supplied with complete operatorÆs manual.
Ordering Example: DRX-RTD digital signal conditioner with RS-485 output for process signals ($250), plus DRN-PS-750 power supply, 115 Vac input, 24 Vdc output @ 750 mA ($130), $250 + 130 = $380.

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.



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