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WQ1A/V Pulse to Analog Converter
Brand: Yokogawa Electric Corporation
The WQ1A/WQ1V is a compact, front terminal connection type pulse-to-Analog converter that receives pulse-train signal and converts it into isolated DC voltage or DC current signal.
Features- With built-in 12 V or 24 V power supply for pulse transmitter inputs.
- Input pulse types include current pulse, voltage pulse, non-voltage contact, and open collector contact.
- Internal filter to eliminate chattering can be specified when ordering. (In cases where the input frequency range is up to 100 Hz, the pulse width is 3 ms or more)
- Dual output specifications are available upon requests.
Specifications
Accuracy
- ± 0.3 % of Span
- Relative Error within ± 0.2 % between Output 1 & 2 - Dual Output
Consumption
- 11 VA at 100 Vac - Power Consumption (WQ1A-2)
- 60 mA at 24 Vdc - Current Consumption (WQ1V-1)
- 7.5 VA at 100 Vac - Power Consumption (WQ1V-2)
- 90 mA at 24 Vdc - Current Consumption (WQ1A)
Electrical Connectors
- M4 Screw Terminal
Enclosure, Body Material
- ABS Resin
Frequency
- 0 to 10,000 Hz - Input Frequency
- 50 to 10,000 Hz - Span (DC)
Humidity
- 5 to 90 % RH, Non-Condensing - Operating Humidity
Input Signal
- -1 to 8 V - Low Level
- 12 Vdc ± 10 % - Transmitter Power Supply
- 2 V or more - High Level
- 24 Vdc ± 10 % - Transmitter Power Supply
- 2-50 V - Swing Width
Insulation Resistance
- 100 MΩ or more at 500 Vdc
Mounting
- DIN Rail Mounting
- M4 Screw x 4
- Rack-Mounted
- Wall Mounted
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0-100 mVdc
- 0-24 mA DC
- 10 mV - 20 V - Span (DC)
- -10 to 10 Vdc
- 1-24 mA DC - Span
Power Supply
- 12 Vdc / 30 mA - Transmitter Power Supply
- 24 Vdc / 30 mA - Transmitter Power Supply
- 24 Vdc ± 10 % (DC Drive)
- 85-264 Vac, 47 to 63 Hz (AC Drive)
Power Supply Effect
- ± 0.1 % of Span or Less for Fluctuation within the Operating Range of Power Supply Voltage Specification - Voltage Fluctuations
Pulse Range
- Pulse Width with a Duty of 50 ± 30 % when the Input is 100 % - Input Pulse Width
Resistance
- 1 Kiloohm - Input Resistance Current Pulse
- 10 kΩ - Input Resistance Contact Pulse or Voltage Pulse
- 2 to 250 kΩ or more - Allowable Load Resistance for DC Voltage Output
- 200 ohms - Input Resistance Current Pulse
- 510 ohms - Input Resistance Current Pulse
- 750 to 15,000 ohms or Less - Allowable Load Resistance for DC Current Output
Response Time
- 3 seconds, 63 % Response (10 to 90 %) for 500 Hz Span, Max.
- 600 ms, 63 % Response (10 to 90 %) for 500 Hz Span min.
Span & Zero Adjustments
- -1 to 1 % - Zero Adjustment
- 95 to 105 % - Span Adjustment
Supply Voltage
- 1,500 Vac/minute - Withstand Voltage (AC & DC Drive)
- 500 Vac/minute - Withstand Voltage (DC Drive)
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 (Output Current Signal)
- -100 to 200 % - Zero Elevation (Output Voltage Signal)
