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
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|
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/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
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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.
|
STRAIN
GAGE / BRIDGE TRANSDUCER
SIGNAL CONDITIONER - DIN
Rail Mount 
