The DRSP-I Series DC current
signal splitters accept one 4 to
20 mA current input and provide two
optically isolated 4 to 20 mA current
outputs that are linearly related to
the 4 to 20 mA current input. This
provides an economical solution
when one signal must be sent to two
Typical applications include
isolation, output splitting, output
device separation and redundancy
(i.e. to prevent failure of the entire
loop if one device fails), or a
combination of these.
The input signal is filtered, amplified,
split, and then passed through an
opto-coupler to the output stages.
Full 4-way isolation (input, output 1,
output 2, power) make this module
useful for ground loop elimination,
common mode signal rejection,and
noise pickup reduction.
Specifications Input Input Range: 4 to 20 mA Input Impedance: 50 Ω typical Input Loop Power Supply: 15 Vdc ±10%, regulated, 25 mA; May be selectively wired for sinking or sourcing mA input Loop Status LEDs: Variable brightness LEDs indicate I/O loop level and status; One for input, one for each output Output Output Range: (Output 1 and Output 2): 4 to 20 mA; 20V compliance, 1000 Ω at 20 mA Output Linearity: Better than ±0.1% of span Output Zero and Span: Multi-turn zero and span potentiometers for each output channel to compensate for load and lead variations; ±15% of span adjustment range typical Output Loop Power Supplies: One for each output channel; 20 Vdc nominal, regulated, 25 mA may be selectively wired for sinking or sourcing mA output Output Ripple and Noise: Less than 10 mVRMS Output Functional Test: Front buttons set each output to test level when pressed; Each test level potentiometer adjustable 0 to 100% of span General Response Time: 70 milliseconds typical Common Mode Rejection: 120 dB minimum Isolation (Full 4-Way Isolation): Input 1, output 1, output 2, power; 1200 VRMS minimum Ambient Temperature Range: -10 to 60°C (14 to 140°F) Stability: Better than ±0.04% of span per °C Power: DRSP-I: 60 to 265 Vac, 50/60 Hz or 85 to 300 Vdc, 6 W maximum DRSP-I-DC: 9 to 30 Vdc or 10 to 32 Vac 50/60 Hz, 6 W maximum Housing: IP40, mounts to standard 35 mm (1.37") DIN rail Connectors: Eight 4-terminal removable connectors; 14 AWG maximum wire size Dimensions: 45 W x 117 H x 122 mm D (1.78 x 4.62 x 4.81"); height includes connectors
† All amounts shown in USD Note: Comes complete with operator’s manual. Ordering Example: (1) DRSP-I DC current signal splitter, 60 to 265 Vac, 50/60 Hz or 85 to 300 Vdc power, $475.00