Q: What does the 'DSR' suffix mean?

DSR denotes the radial cable entry (through-bore) variant — the cable exits radially, making the body 6mm shorter and easier to install in tight axial spaces. Note: the 005DSR variant is not available.

Q: Is NABL calibration included?

Yes. Every DS Series sensor ships with NABL-accredited factory calibration traceable to national standards, with a 3-year warranty.

Question 1

What makes the DC LVDT different from an AC LVDT?

Accepted Answer

The DS Series has a built-in signal conditioner — simply connect ±15V DC and read the output voltage directly. No external signal conditioning module is required. An AC LVDT, by contrast, needs an external conditioner to supply AC excitation and demodulate the output.

Question 2

What output voltage does the Series DS provide?

Accepted Answer

The default output is ±10V DC, proportional to displacement. Selectable alternatives are 0–10V DC and 0–5V DC, configurable to match your PLC analogue input or DAQ system input range.

Question 3

What supply voltage does the DS Series need?

Accepted Answer

±15V DC (dual-supply). The 4–20mA current output variant is available as the Series DSA if you need current loop output for long cable runs.

Question 4

What ranges are available for the Standard DC LVDT?

Accepted Answer

11 standard models from ±5mm to ±350mm (10–700mm total stroke) in the same 22mm stainless steel body as the AC Series AS, with optional radial cable entry (DSR suffix).

Question 5

Can I use the DS Series directly with a PLC?

Accepted Answer

Yes. The selectable output (±10V, 0–10V, or 0–5V DC) connects directly to any PLC or DAQ analogue input card without additional hardware — making the DS Series the simplest LVDT to deploy in automation systems.

Question 6

What is the linearity of the Standard DC LVDT?

Accepted Answer

±0.25% FSR for models up to ±50mm, rising to ±0.8% FSR for the 350DS model. Temperature coefficient is <0.025% FSR/°C (zero) and <0.04% FSR/°C (sensitivity).

Question 7

What does the 'DSR' suffix mean?

Accepted Answer

DSR denotes the radial cable entry (through-bore) variant — the cable exits radially, making the body 6mm shorter and easier to install in tight axial spaces. Note: the 005DSR variant is not available.

Question 8

Is NABL calibration included?

Accepted Answer

Yes. Every DS Series sensor ships with NABL-accredited factory calibration traceable to national standards, with a 3-year warranty.

Model	Full Stroke Range	Body Length — DS (mm)	Body Length — DSR (mm)	Linearity (% FSR)
005DS	±5 mm (0–10 mm)	127	N/A	±0.25%
010DS / 010DSR	±10 mm (0–20 mm)	168	101	±0.25%
025DS / 025DSR	±25 mm (0–50 mm)	228	161	±0.25%
050DS / 050DSR	±50 mm (0–100 mm)	328	261	±0.25%
075DS / 075DSR	±75 mm (0–150 mm)	428	361	±0.4%
100DS / 100DSR	±100 mm (0–200 mm)	528	461	±0.4%
150DS / 150DSR	±150 mm (0–300 mm)	728	661	±0.4%
200DS / 200DSR	±200 mm (0–400 mm)	928	861	±0.5%
250DS / 250DSR	±250 mm (0–500 mm)	1128	1061	±0.5%
300DS / 300DSR	±300 mm (0–600 mm)	1328	1261	±0.6%
350DS / 350DSR	±350 mm (0–700 mm)	1528	1461	±0.8%

Standard DC LVDT

Overview

Available Models

Applications

Material Testing Automation

Soil & Geotechnical Testing (Triaxial, Consolidation)

Spring Testing Machines

Structural Deflection & Deformation

Factory Automation & PLC Integration

Portable & Field Measurement

Downloads

Series DS — Standard DC LVDT Datasheet

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Frequently Asked Questions

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