DRC-4710_DRC-4720导轨安装式电桥输入信号调节器OMEGA欧米茄
DIN Rail Mount
Bridge Input (Load Cell, Strain Gage) or Voltage Input
0 to 10 Vdc (DRC-4710) or 4 to 20 mA (DRC-4720) Output
Economical
The DRC-4710 and DRC-4720 DIN rail mount signal conditioners are self-contained DC powered modules designed for bridge input (load cell, strain gage) or voltage input (not connected to a bridge, excitation supply not used). These signal conditioners contain a precision instrumentation amplifier, filtered output and a built-in 10V excitation supply capable of driving a 350 Ω bridge.
The 0 to 30 mV input range makes the DRC-4710 and DRC-4720 compatible with most strain gage based load cell or pressure transducer outputs. Two models are available, one with 0 to 10 Vdc output (DRC-4710), and the other with 4 to 20 mA output (DRC-4720). Connections are made via easily accessible screw terminal blocks. Zero and Span adjustment potentiometers are located externally as well for easy access.
Specifications
INPUT
Input Range: 0 to 10 mV, 0 to 20 mV, 0 to 30 mV (dip switch selectable)
Linearity: ±0.01%
Temperature Coefficient: 0.05%/°C
Input Offset Voltage: ±70 μV
Input Offset Voltage Temperature Coefficient: 0.7 μV/°C
Common Mode Voltage: 0 to 5V
Common Mode Rejection (DC): 100 dB
Input Noise: 0.3 μV pp typ (0.1 to 10 Hz)
OUTPUT
Output Range: DRC-4710: 0 to 10 Vdc
DRC-4720: 4 to 20 mA
Load Current (DRC-4710): 5 mA max
Compliance Voltage (DRC-4720): 5.5V max
Loop Resistance (DRC-4720): 250 Ω max
Frequency Response (2-Pole Filter): DC to 10 Hz
Total RMS Gain Temperature Coefficient: 0.007%/°C
BRIDGE EXCITATION SUPPLY
Fixed Output: 10V ±1.5%
Temperature Coefficient: 0.05%/°C
Load Current: 30 mA max
GENERAL Power: 18 to 26 Vdc
Power Consumption (One 350 Ω Bridge):
DRC-4710: 0.96 W (40 mA @ 24 Vdc)
DRC-4720: 1.32 W (55 mA @ 24 Vdc)
Operating Ambient: 0 to 55°C (32 to 131°F)
Storage Temperature: -40 to 80°C (-40 to 176°F)
Dimensions: 96 H x 27 W x 42 mm D (3.78 x 1.06 x 1.65")
Weight: 85 g (3 oz)