I. Basic Information

Model: F3226A (specific for H41q/H51q, not part of the F3 series)

Brand/series: HIMA (Black Horse) / H41q/H51q Security System

Function: 16-channel safety digital input DI, SIL3 certification

Safety level: SIL3 (IEC 61508), TÜV certification, Cat.4/PL e

Programming software: Special configuration tool for H41q/H51q (not ELOP II)

Status: (EOL), no new stock from the original factory, second-hand / in stock / refurbished supply

II. Electrical Specifications (Improved Version of F3226)

Channels: 16 DI channels, each channel with independent diagnosis

Input signals: 24 VDC dry contacts / 8 mA NAMUR sensors

Isolation: 2 kVrms isolation

Response time: Typical 8 ms

Power supply: Backplane 5 VDC (120 mA), no external 24 VDC power supply

Diagnosis: Single-channel open circuit / short circuit / line resistance detection, channel-level fault isolation

Environment: 0 ℃ to +60 ℃, IP20

Size/Weight: 19" rack, 4TE wide; approximately 0.12 kg

III. Core Differences from F3226/F3225

F3226A vs F3226 (Improved on the Same Platform)

Circuit optimization: F3226A improves input filtering and anti-interference, with stronger EMC performance

Diagnosis accuracy: F3226A has more accurate line resistance detection and lower false alarm rate

Batch differences: F3226A is a later production version, with more stable component selection

F3226A vs F3225 (Upgrade and Replacement)

Diagnosis: F3226A is single-channel independent; F3225 is only group diagnosis

Input: F3226A dry contacts + NAMUR; F3225 only dry contacts

Response: F3226A 8 ms; F3225 10 ms

IV. Alternative Suggestions

Same platform (H41q/H51q): Prefer to choose the second-hand / refurbished F3226A model for optimal compatibility

Cross-platform upgrade (F3 series): Replace with chassis F3112/F3114, select F3224A (16DI, 2.5 kV high isolation, full diagnosis)

System upgrade: Migrate to HIMax (SILworX) or HIMatrix F35