The HIMA F3349 (Factory Part Number: 984334903) functions as a high-integrity safety input module specifically engineered for the HIMA Planar F safety instrumented system (SIS). This module acts as the secure interface between field instrumentation and the system logic bus, converting raw field variables into safe data structures. The F3349 serves as the direct, modernized replacement for the legacy F3348 module, introducing upgraded internal circuitry and standard factory conformal coating. Processing facilities utilize this card to capture critical measurements from field transmitters, emergency pushbuttons, and industrial safety sensors in high-risk zones.
| Parameter | Specification Value |
| Manufacturer | HIMA |
| Model Number | F3349 |
| Part Number ID | 984334903 |
| Module Classification | Safety Input Module (Digital / Analog Functionality) |
| System Compatibility | HIMA Planar F Safety Instrumented Platforms |
| Legacy Interchangeability | Direct drop-in functional replacement for HIMA F3348 |
| Channel Density | 8 independent input channels |
| Signal Adaptability | 4-20 mA current loop / 0-10 VDC voltage configurations |
| Hardware Protection Profile | Complete factory-applied conformal coating |
| Analog Resolution Matrix | 12-bit analog-to-digital conversion |
| Measurement Accuracy | Plus or minus 0.1 percent of full scale selection |
| Galvanic Isolation Barrier | Full internal channel-to-bus electrical separation |
| Signal Processing Velocity | Response loop execution time under 20 milliseconds |
| Primary System Supply | 24 VDC nominal operating input (18 to 30 VDC allowable span) |
| Nominal Power Draw | 3 Watts maximum consumption |
| Physical Enclosure Dimensions | 2.0 cm x 19.0 cm x 12.8 cm (W x H x D) |
| Net Module Component Mass | 0.16 kg (0.35 lbs) |
| Total Boxed Shipping Weight | 2.0 kg (4.41 lbs) including specialized transit packing |
| Operating Thermal Window | -20 to +60 degrees Celsius continuous |
| Storage Temperature Limits | -40 to +85 degrees Celsius dry ambient |
| Functional Safety Rating | Certified to IEC 61508 SIL 3 standards via TUeV |
Humid environments, chemical vapors, and airborne salt spray rapidly attack exposed circuit board traces, causing dendritic growth and unexpected card shorts. The F3349 neutralizes this operational hazard by enclosing its entire printed circuit board assembly (PCBA) within a uniform layer of protective conformal coating. This barrier isolates sensitive surface-mount components from sulfurous gases, moisture ingress, and fine industrial dust, preventing early module degradation inside unventilated field marshalling cabinets.
Upgrading outdated plant safety systems usually involves costly re-engineering, extensive rewiring, and loop drawing updates. Because HIMA engineered the F3349 as a direct functional replacement for the legacy F3348 module, it retains exact backplane pinning and terminal matching. Plant technicians can pull a failed or aging F3348 card directly from the Planar F chassis slot and slide the brand new F3349 in its place without modifying physical cabinet wires or halting structural system configurations.
Long instrument cable runs between remote process storage tanks and localized control rooms frequently capture large electromagnetic fields and ground potential shifts. The F3349 deploys internal galvanic isolation barriers across each input channel to intercept these electrical disturbances at the card edge. By breaking the physical copper path between the field loops and the underlying Planar F system bus, the module prevents external voltage surges or transient noise spikes from destabilizing adjacent running cards.
Can the HIMA F3349 step directly into a slot previously holding an F3348 card?
Yes. The F3349 features complete mechanical and electrical backwards compatibility with the legacy F3348 module. You can execute a direct drop-in replacement inside the Planar F chassis without altering the field terminations, rewriting application parameters, or changing the physical frame alignment.
How should field technicians configure the module channels for 4-20 mA versus 0-10 V inputs?
Technicians must configure the input channels to match the field transmitter signal profile before applying power to the loop. You select the target mode (current or voltage) via internal board jumpers or rack-specific terminal wiring bridges according to your Planar F system loop diagrams. Setting mismatched parameters will cause measurement errors or cause the module to flag an out-of-range sensor fault.
What indications occur on the module faceplate during a channel hardware failure?
The F3349 incorporates real-time front-panel diagnostic LED status windows. Under normal run conditions, the channel indicators confirm steady signal processing. If a field loop wire snaps, a transmitter fails, or internal diagnostics detect a component anomaly, the module illuminates the corresponding fault LED, allowing maintenance crews to locate and isolate the bad loop immediately without tracing wires with an external meter.
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.