High Temperature Variable Reluctance Speed Sensors
Variable reluctance speed sensors for extreme high temperature applications. Feature an operating temperature range of -450°F to +850°F and +1000°F intermittently. Standard models are equipped with a flexible stainless steel braided sheath that can withstand exposure to +1000°F. Special materials and construction prevent damage from physical abuse and thermal shock. In addition, all High Temperature magnetic sensors are hermetically sealed.
- Features & Specifications
- Standard Models
- Variable Reluctance (VR) or inductive type (no internal magnet)
- Hermetically sealed, heli-arc welded construction
- Three (3) foot stainless steel overbraided lead (custom length available upon request)
- 300 stainless steel housing (locknut included)
- Magnet that resists demagnetization
- Unique potting that compensates for temperature extremes
- Focusing tip (pole piece) which allows greater air gap with no signal loss
- Operating temperature range: -450°F to +850°F & +1000°F intermittently
- IR leakage: 50 Mohms @ 50 VDC minimum
- High signal output
- Unconditional six (6) month warranty if used within specifications
Standard Drag High Temp VR Models
| Model Number | Mounting Thread (A) | Thread Length (B) | Overall Length (C) | Tip (Length/Dia.) (D) | Resistance (ohms) | Inductance (Henry) | Gauss Strength |
| PC28-41G | 5/8×18 | .875 | 3.1 | .031/.100 | 100 | .09 | 1000 |
| PC28-13G | 11/16×24 | .563 | 3.1 | .070/.125 | 120 | .10 | 1050 |
| PC28-45G | 3/4×20 | 1.25 | 3.1 | .070/.125 | 120 | .10 | 1050 |
Low Drag High Temp VR Models
| Model Number | Mounting Thread (A) | Thread Length (B) | Overall Length (C) | Tip (Length/Dia.) (D) | Resistance (ohms) | Inductance (Henry) | Gauss Strength |
| PC28-40G | 5/8×18 | .875 | 3.1 | .031/.100 | 160 | .20 | 180 |
| PC28-14G | 11/16×24 | .563 | 3.1 | .070/.125 | 180 | .25 | 200 |
| PC28-24G | 3/4×20 | 1.25 | 3.1 | .070/.125 | 180 | .25 | 200 |
Inductive High Temp Models
| Model Number | Mounting Thread (A) | Thread Length (B) | Overall Length (C) | Tip (Length/Dia.) (D) | Resistance (ohms) | Inductance (Henry) | Gauss Strength |
| PC23-24G | 11/16×24 | .563 | 3.1 | flushfront | 250 | 1.2 | n/a |
