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WH1K Limit Alarm
Brand: Yokogawa Electric Corporation
The WH1K is a compact, front terminal connection type limit alarm that receives DC current or DC voltage signals, compares them with internal setting values and outputs alarm contacts.
Features- Two alarm outputs: each output has an alarm, hysteresis and direction set points
Specifications
Accuracy
- ± 0.2 % of Span - for 4-20 mA DC or 1-5 Vdc Input
- ± 1 % of Span - for Other Input
Alarm
- 0 to 100 % - Alarm Action Point Setting Range
Consumption
- 6 VA at 100 Vac - Power
- 60 mA at 24 Vdc - Current
Electrical Connectors
- M4 Screw Terminal
Electrical Rating
- 0.1 A at 125 Vdc - Resistive Load
- 0.5 A at 20 Vac (Resistance Load)
- 1 A at 100 Vac (Resistance Load)
- 1 A at 30 Vdc - Resistive Load
Enclosure, Body Material
- ABS Resin
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing
Hysteresis
- 0 to 10 %
Input
- ± 30 Vdc - Voltage Input
Input Signal
- 0-50 mA DC
- -10-10 Vdc
Insulation Resistance
- 100 megaohms 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 Format
- Relay Contact
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
Resistance
- 1 Megaohm - Input Resistance During Power On
- 100 kiloohms - Input Resistance During Power Off
- 100 to 1,000 ohms - Input Resistance
Supply Voltage
- 1,000 Vac/minute - AC Drive, DC Drive Withstand Voltage
Temperature Effect
- ± 0.2 % of Span or Less for a Temperature Change of 10° C (18° F) - Effect of Ambient Temperature Change