Overview

The Engineering Card is utilized in a System 57 rack to provide a common interface for commissioning and operating each fitted control card. It is always installed in the right-hand slot of the rack and offers the following functions:

Front Panel Features:

• Tactile Push-Buttons: Operate various functions.
• LED Indicators: Display rack power and communications status.
• Mini DIN Socket: Connects to a serial printer, computer, or an Engineering Key.

Functions of the Engineering Card:

• Power Routeing: Directs the 24V DC input from the DC Input Card to the rack's backplane.
• Serial Communications Controller: Manages and monitors backplane serial communications.
• Time and Date Reference: Provides a time and date reference.
• RS232 External Engineering Interface: Facilitates external communication.
• Security-Level Operations:

• • Catalytic Sensor Head Monitoring: Checks and adjusts sensor head current.
  • Alarm Settings: Sets and tests alarm set points.
  • Sensor Signal Adjustments: Adjusts zero, span, and life monitoring values.
  • Sensor Line Monitoring: Monitors sensor lines.
  • Control Card Alarm Inhibit: Enables or disables alarm inhibit functions.
  • System Clock: Checks and adjusts the system clock.
• Self-Validation: Validates the operation of circuit components, software, and backplane communications.

Technical Specifications

• Pressure Range: 0 to 1000 psi
• Output Signal: 4-20 mA or 0-10 V
• Accuracy: ±0.5% of full scale
• Temperature Range: -40°C to +85°C
• Power Supply: 12-30 V DC
• Connection Type: 1/4” NPT or other configurations available
• Material: Stainless steel housing for durability
• Protection Class: IP65 or equivalent