SI-Series LVDT Position Sensor
3/4 inch diameter, loop-powered 4-20 mA LVDT position transmitter designed for a wide range of position monitoring and feedback applications
Key features
- Standard measurement ranges of 1 to 20 inches
- 4 to 20 mA input/output
- Non-linearity of ±0.25% of FRO or better
- Industry-standard 3/4 inch (19 mm) diameter
- Through-bore design
- Sealed to IEC IP-62
About the SI-Series General purpose 4-20 mA LVDT position sensor
The SI 750 Series of 3/4 inch diameter, loop-powered 4-20 mA LVDT position transmitters is designed for a wide range of position monitoring and feedback applications.
Their stainless steel housings act as magnetic shields to reduce the effects of external AC magnetic fields, and their sealing meets IEC standard IP-62.
Available in standard ranges of 1 inch (25 mm) to 20 inches (500 mm), the maximum linearity error for an SI 750 Series sensor is ±0.25% of full range output using a statistically best-fit straight line derived by the least squares method.
SI 750 Series transmitters offer the frictionless operation, high resolution, excellent repeatability, and low hysteresis associated with LVDT technology, along with the convenience and simplicity of a precalibrated 4-20 mA current loop operation. The built-in electronics operate over a wide range of loop supply voltages and resistances, and are designed to operate with many PLCs, digital indicators, A/D converters, computer based data processors, and QC data collection systems.
Applications for SI-Series
- Machine tool positioners
- Materials testing extensometers
- Hydraulic cylinder position
- Valve position sensing
- Automatic assembly equipment
Do you need this sensor for your next project?
Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.
Talk to our experts
Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.
Talk to an expertTechnical Specifications
| Specification | Value |
|---|---|
| Frequency response (-3db) | 50Hz (nominal) |
| Loop resistance (min.) | 50 Ohms |
| Loop supply voltage | 10V to 28VDC |
| Measurement range | 25.4 to 508mm |
| Non-linearity | ±.1% to ±.25% FR |
| Operating temperature | -30°C to +85°C |
| Output | 4-20mA |
| Shock survival | 100g |
| Thermal coefficient of scale factor | -0.027%/°C nominal |
| Vibration tolerance | 20g to 2kHz |
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