Overview

The DeltaV SIS™ process safety system, part of Emerson’s smart SIS, represents the next generation of Safety Instrumented Systems (SIS). This smart SIS approach harnesses the power of predictive field intelligence to enhance the availability of the entire safety instrumented function.

Specifications

• Storage Temperature: -40 to 85°C (-40° to 185°F)

• Operating Temperature: -40 to 70°C (-40° to 158°F)

• Relative Humidity: 5 to 95%, non-condensing

• Airborne Contaminants: ISA-S71.04-1985 Airborne Contaminants Class G3

• Conformal Coating: Yes

• Protection Rating: IP 20

• Hazardous Area/Location:

  • European EMC Directive per EN61326-1, Criterion A
  • NAMUR NE21 EMC Requirements
  • Low Voltage Directive IEC 61010-1
  • Factory Mutual, Non-Arcing
  • Class 1, Div 2, Groups A, B, C, D, T4 hazardous locations
  • ATEX 3 G EEx IIC-nA T4 EN50021:1999
  • CSA 1010

• Shock: 10 g ½-sine wave for 11 ms

• Vibration:

  • 1 mm peak-to-peak from 5 to 16 Hz
  • 0.5 g from 16 to 150 Hz

• Input Power: 24 V DC ± 20%, 1.0 A plus field power (5.0 A total)
  (Note: It is recommended that the SLS and DeltaV controller and I/O use separate power supplies)

• Field Power: 4 A maximum (actual value depends on channel type and field device type)

• Isolation: Each channel is optically isolated from the system and factory-tested to 1500 V DC.
  (No channel-to-channel isolation)

• Local Bus Current: None

• Mounting:

  • In SIS (yellow) terminal blocks in odd-numbered slots (1, 3, 5, 7) on the 8-wide carrier.
  • Redundant SLSs take 4 slots.

• Redundant Logic Solver:

  • Weight: 1.20 kg
  • Heat Dissipation: 24 W
  • Power: 2 A @ 24 V DC + Dig out Field Loads