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DA5 Distributor with Square Root Extractor
Brand: Yokogawa Electric Corporation
The DA5, a nest-mounting type DCS-supported distributor with square root extractor, is used in combination with a two-wire transmitter to convert the differential pressure flow signal into a linearized signal proportional to the flow.
Features- With transmitter short-circuit protection and low-cut function
- On-site zero/span adjustment and I/O monitoring etc. Can be performed from the host system or a handy terminal via the communication interface
- Available for use with safety barriers
Specifications
Accuracy
- ± 0.1 % of Span - Output 1
- ± 1 % - for Input Level 2 % or Less
- Relative Error within ± 0.2 % between Output 1 & 2 - Output 2
Consumption
- 110 mA at 24 Vdc (4-20 mA) - Current Consumption
- 80 mA at 24 Vdc (1-5 V) - Current Consumption
Current
- 1-24 mA DC - Span
Electrical Connectors
- M4 Screw Terminal
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing
Input Signal
- 4-20 mA DC - from 2-Wire Transmitter
Insulation Resistance
- 100 megaohms or more at 500 Vdc between Input & Output, Output & Power Supply, & Input & Power Supply
Mounting
- Nest-Mounting
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0 to 24 mA
- 10 mV to 20 V - Span (DC)
- -10-10 Vdc
- 1-5 Vdc - Output 1 Signal
Power Supply
- 24 Vdc ± 10 % (Ripple Content 5 % Peak-to-Peak or Less)
- Transmitter Power Supply: 25.25 ± 0.25 Vdc
Power Supply Effect
- ± 0.1 % of Span or Less - Effect of Power Supply Voltage Fluctuations
Resistance
- 2 to 250 kiloohms - Allowable Load Resistance for DC Voltage Output
- 250 ohms - Input Resistance
- 750 to 15,000 ohms - Allowable Load Resistance for DC Current Output
Response Time
- 200 milliseconds, 63 % Response (10 to 90 %)
Span & Zero Adjustments
- ± 1 % of Span - Input Adjustment
- ± 10 % of Span - Output Adjustment
Supply Voltage
- 1,500 Vac/minute between Input & (Output & Power Supply) - Withstand Voltage
- 500 Vac/minute between Output & Power Supply - Withstand Voltage
Temperature Effect
- ± 0.2 % of Span or Less for a Temperature Change of 10° C (18° F) - Effect of Ambient Temperature Change
Zero Offset
- 0 to 200 % - Zero Elevation (Current Signal)
- -100 to 200 % - Zero Elevation (Voltage Signal)
