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The DC7, a nest-mounting type DCS-supported isolator, receives 4 to 20 mA DC signals from DCS, and converts them into 4 to 20 mA DC current signals.
Features
  • Bi-directional relay of HART communication signals is possible while the DCS and the field devices are isolated from each other
  • When a load circuit opens, input resistance increases rapidly to 48 KiloOhms or more to detect the open state through the input device
  • Recommended arrester: AR-SA or AR2-SA

1 - 1 of 1 Part Numbers
DC7-AAN
DC7-AAN
  • Input - 4-20 mA DC
  • Output - 4-20 mA DC
1 - 1 of 1 Part Numbers

Specifications

Accuracy

  • ± 0.1 % of Span

Communication

  • HART

Consumption

  • 60 mA at 24 Vdc - Current Consumption

Electrical Connectors

  • M4 Screw Terminal

Humidity

  • 5 to 90 % Relative Humidity, Non-Condensing

Input

  • 40 mA or Less - Max.

Input Signal

  • 4-20 mA DC

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

  • 4-20 mA DC

Power Supply

  • 24 Vdc ± 10 % (Ripple Content 5 % Peak-to-Peak or Less)

Power Supply Effect

  • ± 0.1 % of Span or Less for Fluctuation within the Operating Range of Power Supply Voltage Specification

Resistance

  • 750 ohms or Less - Allowable Load Resistance

Response Time

  • 25 milliseconds, 63 % Response (10 to 90 %)

Span & Zero Adjustments

  • -1 to 1 % - Zero Adjustment
  • 95 to 105 % - Span Adjustment

Supply Voltage

  • 1,500 Vac/minute between Output & (Input & Power Supply) - Withstand Voltage
  • 500 Vac/minute between Input & 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

Voltage Drop

  • 5 Vdc or Less
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