The Yokogawa F3AD08-5R, also cataloged as the F3AD08 Analog Input Module, operates as a dedicated hardware component for precision voltage data acquisition within FA-M3 range controllers. The rack-mounted circuit card samples continuous high-density voltage signals natively at the hardware tier to update internal registers across industrial processing environments.
Hardware Specifications
Parameter
Specification
Model
F3AD08-5R
Brand
Yokogawa
Origin
Japan
Weight
2.00 lbs (0.91 kg)
Dimensions
Standard FA-M3 baseboard slot module geometry
Operating Temp
0 to 55 deg C standard industrial unventilated enclosure tolerances
Power Consumption
210 mA at 5 VDC internal logic draw
Input Signal Constraints
Voltage signals only (No direct current input loops)
Configurable Input Ranges
0 to 5 VDC (-0.25 to 5.25 VDC absolute range)
1 to 5 VDC (-0.25 to 5.25 VDC absolute range)
-10 to 10 VDC (-11.0 to 11.0 VDC absolute range)
0 to 10 VDC (-0.5 to 10.5 VDC absolute range)
Dielectric Isolation Limit
500 VDC for one minute duration
Channel Density
8 analog input channels
Product Type
Analog Input Modules
Process Control & DCS Instrumentation Interface
4-20 mA HART Loop Protocol System Segmentation The input card operates as a pure voltage-sensing component, handling raw signal conversions completely separated from direct 4-20 mA HART loop protocol current tracks. To monitor standard current loop instrumentation, external precision dropping resistors must be inserted across the input terminal blocks to transform the current metrics into corresponding 1 to 5 VDC parameters before backplane parsing occurs.
Channel-to-Channel Isolation Control The electronic topology integrates internal electrical barriers that provide a dielectric isolation limit of 500 VDC for one minute between the input terminals and the internal logic processing core. This boundary protects upper-tier processing registers from field-side common-mode voltage drifts, grounding anomalies, and localized electrical surges.
