Honeywell Enraf S0947601 Rev.10 SmartView Display 2558964-2

Honeywell Enraf S0947601 Rev.10 (2558964-2) SmartView Display Unit

The Honeywell Enraf S0947601 Rev.10 (Internal Assembly / Part Number: 2558964-2) is a dedicated, intrinsically safe graphic display and operator interface designed for local and remote tank-side inventory monitoring. Engineered for severe marine cargo, refinery, and bulk liquid terminal applications, this SmartView module interfaces directly with Honeywell Enraf tank gauging systems—including the SmartRadar FlexLine series and SmartServo 954 level gauges.

The display communicates natively via an intrinsically safe communication loop with internal FlexConn bus modules, providing operators and marine cargo engineers immediate visual verification of innage, ullage, product interface, average multi-element temperature, and diagnostic alarm statuses compliant with Weights & Measures (W&M) and API custody transfer standards.

Model Details

• Manufacturer: Honeywell Enraf (Delft, Netherlands)
• Model Designation: SmartView Display Assembly / Indicator Board
• Manufacturer Part Number (MPN): S0947601
• Hardware Revision: Rev. 10
• Sub-Assembly / Drawing Number: 2558964-2
• Display Technology: Monochromatic Graphic FSTN LCD, 64 × 128 dots
• Operating Topology: Gauge-mounted internal display or standalone 4-wire remote tank-side indicator

Technical Specifications

Key Features

1. Intrinsically Safe Ex ia Topology: Rated for direct deployment in Class I, Division 1, Zone 0/Zone 1 hazardous environments without requiring explosion-proof enclosures or flamepaths for the local interface.
2. High-Resolution Liquid Crystal Readout: 64 × 128 pixel dot-matrix graphic display capable of rendering alphanumeric tank variables, bar graphs, and dynamic diagnostic annunciators.
3. Dual Mounting Flexibility: Operates both as an integral faceplate display inside the gauge’s FlexConn compartment or as a standalone, ground-level remote tank indicator connected over a shielded cable loop.
4. Non-Intrusive Local Operation: Enables ground-level personnel to view tank parameters, review active process alerts, and perform routine configuration verification safely.
5. Custody Transfer Grade Accuracy: Fully compliant with OIML R85 and API Chapter 3.1B visualization guidelines when linked to certified Enraf radar and servo level transmitters.

Compatibility

• Honeywell Enraf SmartRadar FlexLine Series: Models 990, 991, 992 (Free Space, Stilling Well, and High-Pressure Radar gauges)
• Honeywell Enraf SmartServo Gauges: SmartServo 954 Series (Internal slot mounting or Standalone remote connection option “B”)
• FlexConn Architecture: Directly connects to FlexConn I.S. bus and power supply modules
• Enraf Tank Inventory Software: Compatible with systems reporting through Entis Pro, Entis Tank Inventory System, and CIU 888 Communication Interface Units

Frequently Asked Questions

Can the Honeywell Enraf S0947601 Rev.10 replace older revisions such as Rev.06 or Rev.08?

Yes. The S0947601 Rev.10 (PCB 2558964-2) maintains backwards form, fit, and functional pin compatibility with earlier revisions installed in SmartRadar FlexLine and SmartServo 954 gauges. It mounts into the standard display slot and accepts the identical 4-wire terminal bus.

What is the maximum distance the SmartView can be mounted away from the gauge?

When installed as a remote, ground-level indicator, the maximum cable distance depends on cable loop resistance and capacitance. For a single display, total loop resistance must remain under 8.5 Ohms with capacitance below 3.0 µF. Using standard 16 AWG or 18 AWG twisted shielded instrumentation cable, operational distances up to 100 meters (328 feet) are routinely maintained.

Why is the SmartView display blank while the primary radar/servo gauge is operational?

A completely blank display usually indicates that the intrinsically safe power feed is interrupted, the terminal ribbon connection has worked loose, or line voltage has dropped below operating threshold. Verify the input voltage across Pins 1 and 2 (must be ~12 V DC) and inspect the cable polarity. If power is within tolerance and polarity is correct, verify that the display entity is assigned and enabled in the gauge’s configuration using Honeywell Engauge software.

Does this display require hot-work permits to open and inspect in hazardous areas?

The SmartView module and its host terminal interface are intrinsically safe (Ex ia). However, safety protocol requires adhering to regional and company permit procedures before opening any terminal housing within a Zone 0, Zone 1, or Class I, Div 1 envelope. If the host gauge houses non-intrinsically safe main power supply compartments on the same deck, standard cold-work/hot-work authorizations apply.

Can two SmartView displays be operated simultaneously from the same gauge?

Yes. Honeywell Enraf FlexLine systems support dual SmartView installations—one mounted internally on the gauge head and one mounted remotely at the bottom of the tank. When running dual displays, maximum permissible loop resistance drops to 4.7 Ohms to preserve voltage integrity across both units.