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DM1 Free Range Type Isolator
Brand: Yokogawa Electric Corporation
The DM1 is a nest-mounting type DCS-supported isolator that receives DC mV signals, and converts them into various isolated DC current or DC voltage signals.
Features- 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
Specifications
Accuracy
- ± 0.1 % of Span or 10 μV, whichever is greater - Output 1
- Relative Error within ± 0.2 % between Output-1 & 2 - Output 2
Burn-Out
- Burn-Out Time: 60 seconds, Max.
- Down
- Off
- Up
Consumption
- 50 mA at 24 Vdc (1-5 V) - Current Consumption
- 75 mA at 24 Vdc (4-20 mA) - Current Consumption
Current
- 0.1 µA - Burn-Out Detective Current
- 1-24 mA DC - Span
Electrical Connectors
- M4 Screw Terminal
Humidity
- 5 to 90 % RH, Non-Condensing - Operating Humidity
Input
- -0.5 to 4 Vdc - Max.
- 3 mV Min. - Input Span
Insulation Resistance
- 100 MΩ or more at 500 Vdc between Input & Output, Output & Power Supply, & Input & Power Supply
Measuring Range
- -100 to 150 mVdc
Measuring Span
- 3 mVdc or more
Mounting
- Nest-Mounting
Operating Temperature
- 0° to 50° C (32° to 122° F)
Output
- 0-24 mA DC
- 10 mV - 20 V - Span (DC)
- -10 to 10 Vdc
Power Supply
- 24 Vdc ± 10 % (Ripple Content 5 % Peak-to-Peak or Less)
Power Supply Effect
- ± 0.1 % of Span or Less for the Fluctuation within the Operating Range of Power Supply Voltage Specification
Resistance
- 1 Kiloohm or Less - Allowable Leadwire Resistance
- 1 MΩ During Power-On - Input Resistance
- 10 kΩ During Power Off - Input Resistance
- 2 to 250 kΩ 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
- 200 ms, 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)
- Within ± 300 % of the Measuring Span