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DSK Limit Alarm
Brand: Yokogawa Electric Corporation
The DSK is a nest-mounting type limit alarm, receives 4 to 20 mA DC or 1-5 Vdc signals, compares them with internal setting values and outputs alarm contacts.
Features- Alarm action points can be set by front volume, and directions and contacts can be selected by the internal switch.
Specifications
Accuracy
- ± 0.05 % of Span - Reproducibility of Alarm Action Point
Consumption
- 24 Vdc, 80 mA
Current
- 1-50 mA DC - Span
Humidity
- 5 to 90 % Relative Humidity, Non-Condensing
Hysteresis
- 1%
Input
- 0-50 mA DC
- -10 to 10 Vdc
- Within ± 30 Vdc - Voltage Input
- Within 22-70 mA DC - Current Input
Input Signal
- 1-5 Vdc
- 4-20 mA DC
Insulation Resistance
- 100 megaohms or more at 500 Vdc between Input & Output 1, Input & Power Supply, Input & Output 2, Output 2 & Power Supply, Output 1 & Output 2, & Power Supply & Output 2
Mounting
- M4 Screw Terminals
- Nest-Mounting
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 125 Vac / 1 A - Contact Rating
- 125 Vdc / 0.1 A - Contact Rating
- 220 Vac / 0.5 A - Contact Rating
- 30 Vdc / 1 A - Contact Rating
Output Format
- Relay Contact
Power Supply
- 24 Vdc ± 10 % (Ripple Content 5 % Peak-to-Peak or Less)
Power Supply Effect
- ± 0.1 % of Span or Less
Resistance
- 1 Megaohm - Input Resistance During Power On
- 100 kiloohms - Input Resistance During Power Off
- 250 ohms - Input Resistance
Supply Voltage
- 1,500 Vac/minute between Input & Output 1, Input & Power Supply, Input & Output 2, Output 2 & Power Supply, Output 1 & Output 2, & Power Supply & Output 2
- 1-20 Vdc - Span
Temperature Effect
- ± 0.2 % of Span or Less for a Temperature Change of 10° C (18° F)
Zero Offset
- 0 to 50 % - Zero Elevation (Current Signal)
- -50 to 50 % - Zero Elevation (Voltage Signal)