KD-1925
High-temperature displacement sensor rated to 5000 psi
- Operating temperatures from -320°F to +1000°F (+1200°F short term)
- Withstands pressures to 5000 psi
- Hermetically sealed, laser-welded Inconel 718 housing
- Dual-coil design minimizes temperature and radiation effects
- Static resolution of 30 µinch at mid range
- Frequency response to 10 kHz, with 30 kHz available on request
- KD-1925M version available for magnetic targets
- Thread mount or flange mount configurations
Specifications
| Measuring range | KD-1925: 0.050 in (1.27 mm); KD-1925M: 0.035 in (0.9 mm) |
|---|---|
| Maximum mechanical offset | 0.001 in |
| Electronics | KDM-8206 |
| Power input | 120 Vac |
| Output | KD-1925: 0-2 Vdc nominal (50 mV/mil); KD-1925M: 0-1.75 Vdc nominal (50 mV/mil) |
| Static resolution | 30 µinch (0.00076 mm) at mid range |
| Dynamic resolution | 50 µinch (0.0013 mm) at mid range |
| Repeatability | 30 µinch at mid range |
| Operating temperature | -320°F to +77°F or +77°F to +1000°F (+538°C) |
| Nonlinearity | Within ±1.5% FSO at customer-selected calibration temperature |
| Zero shift | 0.03%/°F FSO (0.054%/°C FSO) |
| Sensitivity shift | 0.03%/°F FSO (0.054%/°C FSO) |
| Frequency response | 0-10 kHz (3 dB); 30 kHz available on request |
| Sensor material | Inconel 718, welded and hermetically sealed |
| Cable material | Inconel 600 sheathed, mineral insulated |
| Standard cable lengths | Hardline 10 ft; softline 5 ft |
| Target material | Nonmagnetic and magnetic conductors |
| Operating pressure | To 5000 psi |
| Mounting | 5/16-24 thread mount; flange mount, smooth body |
Sensors
Downloads
Certifications
Options
Accessories
Frequently Asked Questions
What temperatures can the KD-1925 operate in?
The KD-1925 operates from -320°F to +1000°F continuously, and up to +1200°F short term. It is calibrated for either the cryogenic range (-320°F to +77°F) or the high-temperature range (+77°F to +1000°F).
What pressure can the KD-1925 withstand?
The KD-1925 is rated to 5000 psi, the highest pressure rating in the KMM Extreme Environment sensor line. The KD-1950 and KD-1975 are rated to 3500 psi.
What is the difference between the KD-1925 and KD-1925M?
The KD-1925M is designed for magnetic targets and has a measuring range of 0.035 inch (0.9 mm). The standard KD-1925 has a measuring range of 0.050 inch (1.27 mm).
What electronics does the KD-1925 use?
The KD-1925 uses KDM-8206 signal conditioning electronics, available in single-channel and multi-channel rack-mountable configurations.
What applications is the KD-1925 used for?
Typical applications include nuclear reactors, steam and gas turbines, turbine and rocket engines, chemical processes, research projects, and high-temperature processing.
What mounting options are available?
The KD-1925 is available in a 5/16-24 thread mount or a flange mount with a smooth body. CAD files for both are available in the 3D Models downloads.
