Description
The Endress+Hauser Soliphant M FTM51-AGJ2M4D13AF is a robust vibronic point level switch designed for fine-grained and powdery bulk solids. Utilizing a tuning fork sensor principle, it detects high, intermediate, or low levels in silos, hoppers, and bunkers, operating reliably even in low-density media subject to heavy material build-up or external vibrations.
Procurement and Availability
- Availability: Stock dependent; available in new surplus and factory-sealed configurations. Verify current stock allocations prior to issuing purchase orders.
- Lead Time: 2 to 4 weeks for standard factory configurations; expedited air options available for select inventory.
- Warranty: 12-month standard replacement warranty on new surplus and factory-new units.
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Technical Specifications
| Parameter | Value |
| Manufacturer | Endress+Hauser |
| Product Series | Soliphant M FTM51 |
| Part Number / Order Code | FTM51-AGJ2M4D13AF |
| Measuring Principle | Vibronic Point Level Detection (Tuning Fork) |
| Application Range | Fine-grained solids, powders, granules (maximum grain size \le 10 mm) |
| Minimum Medium Density | 10 g/l (Standard fork version) |
| Process Temperature Range | -50 to +150 °C (Standard version; up to +280 °C with high-temperature variants) |
| Process Pressure Limit | Vacuum up to 25 bar (360 psi) |
| Process Connection | Threaded or flanged variant (verify exact adapter sizing per project specs) |
| Sensor Extension Length | Custom tube extension profile (verify physical insertion length requirements prior to installation) |
| Electronics Insert | Configurable output module (e.g., Relay, PNP, or NAMUR depending on exact sub-spec code) |
| Power Supply | Dependent on installed electronic insert module (e.g., 19 to 253 V AC / 19 to 55 V DC) |
| Hazardous Area Approvals | Non-hazardous or dust-Ex/gas-Ex certified configurations available (verify nameplate rating) |
| Ingress Protection | IP66 / IP67 (Housing dependent) |
| Functional Safety | SIL2 in accordance with IEC 61508 |
System Integration and Compatibility
In field deployments handling cement, flour, grain, plastic granules, or fine chemicals, the FTM51 mounts directly onto silos via extended rigid tubes.
- Calibration Requirements: No on-site media calibration or adjustment is required prior to commissioning; the device is factory-tuned to the specified minimum medium density.
- Vibration and Build-Up Resistance: The resonant frequency tuning fork design resists false tripping caused by heavy vessel vibration or material bridging.
- Electrical Installation: Ensure proper cable entry glands are torqued to specification to maintain the housing’s environmental enclosure rating. Match the control loop supply voltage to the internal electronic insert module configuration before energizing.
Frequently Asked Questions
Q: Can this switch be used in heavy vibrating industrial environments?
A: Yes. The resonant fork mechanism is electronically filtered to ignore external mechanical vibrations from conveyors, bin activators, or heavy silo structure wall shifts.
Q: Does the unit require periodic cleaning or maintenance?
A: No. The Soliphant FTM51 features no moving parts and utilizes an active build-up/abrasion self-monitoring feature, making it entirely maintenance-free under normal operating conditions.
Q: How do I verify the exact electronic output configuration of this specific unit?
A: Check the serial number and complete order code string printed on the side housing tag against the Endress+Hauser technical information manual (TI00336F) or contact your supplier for the factory test sheet.
