Description

The Honeywell 04230-A-1001 (Type SHC-1) is an intrinsically safe, portable maintenance, configuration, and calibration tool designed for Honeywell Analytics fixed infrared gas detection systems. Running factory-installed 4V0 software, this device serves as the primary field interface for commissioning, interrogating, and diagnostic troubleshooting of Searchpoint Optima, Searchpoint Optima Plus, and Searchline Excel gas detectors. It establishes a digital link with field devices to read operational metrics, execute zero/span calibrations, and download event logs without taking the detectors offline.

Technical Specifications

Supply Status and Procurement Logic

• Condition: New Original / Factory Sealed (New Surplus units occasionally cycled into active rotation)
• Warranty: 12-Month Comprehensive Technical Warranty
• Availability: Active allocation via safety and instrumentation logistics pipelines
• Lead Time: Ships within 1 to 3 business days from order processing
• Pricing: Variable based on international safety component indices. Contact our engineering desk for a firm, contract-specific quote.

Critical Field Integration Rules & Constraints

When using the SHC-1 interrogator on live processing plants, maintenance teams must strictly observe the following constraints to prevent loop failures or code errors:

Certification and Isolation Boundaries

The ATEX intrinsic safety (IS) certification of the 04230-A-1001 interrogator is strictly conditional. It only maintains its safety rating when connected via an approved isolation junction. You must never splice the interrogator lines directly into a bare, non-isolated 24 V DC power loop. Field connection must proceed exclusively via the IS socket on a DVC100 / DX100 termination unit or by deploying the specialized 04230-A-1025 SHC Protection Device module with its factory flying leads.

Regional Certification Variances

The part number 04230-A-1001 is the ATEX-approved model. If your plant operates under alternative regulatory regimes, this exact part number cannot be used as a generic substitute. For projects requiring North American approvals, you must source regional variants: 2104B2351 for UL certification boundaries or 2104B2354 for CSA-regulated jurisdictions.

Firmware-Level Interoperability

The 4V0 software suite embedded within this unit is optimized for the internal register maps of Searchpoint Optima Plus and Searchline Excel cross-duct units. When servicing legacy, non-Plus Searchpoint Optima units, certain advanced extended diagnostic sub-menus may report a null read or communication timeout error. This is an inherent software architecture boundary, not a hardware defect; verify individual detector register maps before executing field-wide parameter alterations.

Frequently Asked Questions (FAQ)

What occurs if the interrogator display screen shows a “No Communication” error upon connection?

Verify that the RS-485 lines are clean and the DVC100/DX100 IS socket pins are free of oxidation. This error usually stems from a baud rate mismatch between the detector’s multi-drop network address configuration and the default interrogation scan routine of the 4V0 software. If the gas detector is actively starting up, wait 2 minutes for its internal diagnostic routine to clear before initiating an interrogation sweep.

Can a zero or span calibration be performed in a classified area using this device?

Yes, because the 04230-A-1001 is certified as intrinsically safe, it allows maintenance technicians to perform full sensor trim, zero calibration, and span alignment directly at the point of detection within a classified hazardous area without requiring a hot work permit.

Is it necessary to recalibrate the interrogator unit itself?

No. The SHC-1 is an electronic interface device that transmits configuration commands and views data registers from the detector; it contains no internal gas-sensing cells. Calibration adjustments are written directly into the non-volatile memory of the target Searchpoint Optima Plus or Searchline Excel device rather than the handheld tool itself. Ensure the unit’s housing seals remain intact to preserve moisture isolation.