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DB1 CT Converter
Brand: Yokogawa
The DB1 is a nest-mounting type DCS-supported CT converter that converts AC current signals into isolated DC current or DC voltage signals.
Features- AC/DC conversion is made by root mean square value
Specifications
Brand
Accuracy
- ± 0.5% of Span - for Output 1
- Relative Error between Output 1 & 2 is within ± 0.2% - for Output 2
Consumption
- 60 mA (1-5 V) - Current Consumption
- 95 mA at 24 Vdc (4-20 mA) - Current Consumption
Current
- 0.1-5 A AC to Span
- 1-24 mA DC - Span
Electrical Connectors
- M4 Screw Terminal
Frequency
- 40 Hz to 10 kHz - Input Frequency
Humidity
- 5 to 90% Relative Humidity, Non-Condensing
Input
- 0.5 VA or less - Input Loss
- 200% (Continuous) - Maximum
- 500% (One Minute) - Maximum
Input Signal
- 0-1 A AC
- 0-5 A AC
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 DC
- -10-10 Vdc
- 1-5 Vdc - Output 1
Power Supply
- 24 Vdc ± 10% (Ripple Content 5% peak-to-peak or less)
Power Supply Effect
- ± 0.1% of Span or less - Effect of Power Supply Voltage Fluctuations
Resistance
- 2 to 250 KiloOhms or more - Allowable Load Resistance for DC Voltage Output
- 750 to 15,000 ohms or less - Allowable Load Resistance for DC Current Output
Response Time
- 250 milliseconds, 63% Response (10 to 90%)
Span & Zero Adjustments
- -5 to 5% - Zero Adjustment
- 95 to 105% - Span Adjustment
Supply Voltage
- 10 mV-20 V - Span (DC)
- 2,600 Vac/minute - withstand Voltage between Input & (Output & Power Supply)
- 500 Vac/minute - withstand Voltage between Output & Power Supply
Temperature Effect
- ± 0.2% of Span or less for a Temperature Change of 10° C (18° F) - Effect of Ambient Temperature
Zero Offset
- 0 to 200% - Zero Elevation (Current Signal)
- -100 to 200% - Zero Elevation (Voltage Signal)
