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DF0 Electric to Pneumatic Converter
Brand: Yokogawa Electric Corporation
The DF0, a nest-mounting type DCS-supported E/P converter, receives 1-5 Vdc or 4 to 20 mA DC signals from DCS, and converts them into pneumatic signals.
Features- A compact, high-performance model with a semiconductor pressure sensor
- Orientation error is less than ±0.1%
Specifications
Accuracy
- ± 0.5 % of Span
Air Consumption
- 4 Nl/min or Less
Air Supply
- 60 NL/min - Max.
BSP Connection
- 1/4” BSPT Female - Air Supply Connection
Consumption
- 90 mA at 24 Vdc - Current Consumption
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing - Operating Humidity
Input Signal
- 1-5 Vdc
- 4-20 mA DC
Insulation Resistance
- 100 megaohms or more at 500 Vdc between Input & Power Supply, Input & Aluminum Die Casting, & Power Supply & Aluminum Die Casting
Mounting
- Nest-Mounting
Mounting Position Effect
- ± 0.1 % of Span for All Directions
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0.2 to 1.0 kgf/cm²
- 1-5 Vdc (Accuracy ± 1 %) for Pneumatic Output Signals of 0 to 100 % - Monitor Output
- psi: 2.84 to 15 (kPa: 19.6 to 103.4, bar: 0.196 to 1.034)
Power Supply Effect
- ± 0.1 % of Span or Less for the Fluctuation within the Operating Range of Power Supply Voltage Specification
Resistance
- 1 Megaohm During Power On (1-5 Vdc) - Input Resistance
- 100 kiloohms During Power Off (1-5 Vdc) - Input Resistance
- 250 ohms (4-20 mA DC) - Input Resistance
Span & Zero Adjustments
- -5 to 5 % - Zero Adjustment
- 95 to 105 % - Span Adjustment
Supply Pressure Effect
- ± 0.1 % of Span or Less for Fluctuation of 140 kPa ± 10 % - Effect of Pneumatic Pressure Fluctuation
Supply Voltage
- 24 Vdc ± 10 % (Ripple Content 5 % Peak-to-Peak or Less)
- 500 Vac/minute between Input & Power Supply, Input & Aluminum Die Casting, & Power Supply & Aluminum Die Casting - Withstand Voltage
Temperature Effect
- ± 0.4 % of Span or Less for a Temperature Change of 10° C (18° F) - Effect of Ambient Temperature
