The NewTek R-812 Series AC LVDTs satisfy numerous applications in which LVDT performance and reliability are required. These linear displacement sensors are available in ranges of ±0.50 inch (±1.27mm) to ±10 inches. Sensor construction consists of a coil assembly potted and mechanically swaged into a 0.812 inch (20.6mm) diameter housing with a separate moving core. The 0.812 inch (6.35mm) diameter core allows a radial clearance of 1/16 inch (1.58mm) between the movable core and the bore of the coil assembly. The large core-to- bore radial clearance provides for ample installation misalignments. The R-812 Series can be designed with a number of standard options including mild radiation resistance, Teflon bore, metric threaded core and high temperature (400°F).
Input Voltage: 3 Vrms (Nominal)
Input Frequency: 400Hz to 10KHz
Linearity: < ± 0.15% Full Range Typical
Extended Operating Range: 1.5 X Linear Range
Null Voltage: 0.5% Full Range
Hysteresis: <0.01% of Full Range Typical
Repeatability: <0.01% of Full Range Typical
Operating Temperature: -65° F to 275° F (-55° C to 135° C)
Thermal Coefficient: <-0.01%/°F (< -0.02%/°C) of Full Range
Humidity: 90% R.H., 240 Hours
Shock Survival: 1000 g, 11 ms
Vibration: 20 g to 2 KHz
Housing: Corrosion-resistant stainless steel
Core: Hi-permeability nickel-iron alloy
Coil Form: Ceramic/Plastic
Magnet Wire: Film insulated copper
Lead Wires: #28 AWG Teflon insulated, 12″ long
Features
- Rugged .812 inch stainless steel housing
- Measurement ranges from ± 0.05 to ± 10 inches
- Linearity ±0.15% of Full Range Typical
- Shock and vibration tolerant
- Wide operating temperature range (-65°F to 275°F)
- Choice of imperial or metric threaded core
- Standard and custom models available
Applications
- Factory Automation
- Food process control
- Materials testing
- Fluid level measurement
