Capacitance Probe, Rigid Rod, Dry Granulated Solids and Powders
The side-mounted Delta Controls Model P80 Series 1 Capacitance Probes feature a full length concentric rod/insulator/body design to withstand heavy loads and resist bending. The secondary PTFE seal prevents failures and false alarms due to moisture and condensation, or high/low control action.
The probes are rigid and rod-type for dry powders and granular solids. The sensing rod has a through-the-gland design for maximum strength and is resistant to bending. The glands are sealed against water and moisture. The sensing rod and body are 300 Stainless Steel. The insulator is Delrin® and the seal is PTFE.
The P80 Series are heavy-duty with proven reliability in tiled or concrete silos. The weight factor and picofarad calculations should be used to model probe results.
Model P81 is a general-duty side inserted probe. The probe may be covered by 26 feet of sand or 65 feet of grain.
Model P82 is a medium-duty, rugged, side inserted probe. The probe may be covered with up to 55 feet of sand or 130 feet of grain.
Model P83 is a heavy-duty, side-inserted probe for more demanding applications. The probe may be covered with up to 75 feet of sand or 180 feet of grain and will withstand small to medium size chunk solids.
Model P84 is an extreme-duty side-inserted probe for the toughest of applications. The probe may be covered with up to 150 feet of sand or 375 feet of grain and can withstand larger chunk size solids.
Features
- Full length concentric rod/insulator/body design withstands heavy loads and resists bending
- Secondary PTFE seal prevents failures and false alarms due to moisture and condensation
- For alarm or high/low control action
- Can be installed in tiled or concrete silos
- Heavy-duty, proven reliability
- Suitable for many chunk solid applications
- Easy model selection when using picofarad calculations to accurately forecast service results
Specifications
- Type: Side Mount
- Working Pressure: +1500 psig (+103.4 bar) at +100 °F (38 °C)
- Working Temperature: -460 °F to +400 °F (-273 °C to +204 °C)
- Bulk Density: 3150 lb/ft3 to 14 900 lb/ft3
- Insertion Length: Custom
- Process Connection:0.75 in to 1.25 in MPT
- Available Wetted Materials: 316 Stainless Steel, PTFE
| COMPARISON CHART OF MODELS | |||||
|---|---|---|---|---|---|
| MPT | "H" | "S" | O.D. | NPT | |
| P81 | 0.75 in | 3.0 (76) | 1.0 (25) | 0.37 (9) | 0.75 in |
| P82 | 0.75 in | 3.0 (76) | 1.5 (38) | 0.50 (13) | 0.75 in |
| P83 | 1 in | 3.1 (79) | 2.0 (51) | 0.625 (16) | 1 in |
| P84 | 1.25 in | 3.7 (94) | 2.0 (51) | 0.875 (22) | 1 in |
| WEIGHT FACTORS* | |
|---|---|
| P81 | 3,150 |
| P82 | 6,590 |
| P83 | 8,880 |
| P84 | 14,900 |
Required Ordering Information
- Detailed model number
- Tag or nameplate detail (if required)
- Documentation & testing packages (if required, refer to Additional Resources in the product catalog)
- Process fluid or material name
- Process fluid or material dieletric constant
- Maximum process temperature
- Maximum process pressure
