STRING POTS BY SERIES / SPS-WET
Motorsport & Wet-Environment String Pot Sensors
Start with the actual water, mud, cable speed and pressure conditions. Request an IP68 configuration review with specified immersion depth, duration, connector sealing and dynamic cable test requirements.
5″–50″ (127–1,270 mm)
Configure SPS-WET / Request STEP →Stroke selection
Nominal inch selections with calculated metric equivalents. Confirm the supplied unit’s electrical and mechanical travel.
Electrical interface
0.5–4.5V ratiometric, 0–5V or 4–20mA by configuration
Application focus
Baja / off-road suspension development and wet test fixtures
BEFORE THE DRAWING IS RELEASED
Three checks for your configuration
- Immersion depth and time, water chemistry, mud and abrasion
- Maximum extension speed, acceleration and spring return behavior
- Non-contact sensing option, supply range and ECU calibration
Original model review: Celesco Wet-String / SGW and motorsport damper sensing applications. Comparison candidates require mechanical and electrical verification; no universal drop-in equivalence is implied.
ACTIVE OUTPUT CONNECTIONS
Match the circuit to your output.
For a conditioned three-wire voltage model, connect the rated supply, common and signal to the designated terminals. For a two-wire 4–20mA model, the transmitter is in series with the loop supply and receiver.
For a 0.5–4.5V ratiometric option, confirm whether the specified model requires a regulated 5V supply. Never connect an ECU power bus by assumption. Display kits need a matched meter input and a separate power review.
THREE WIRES. ONE POSITION SIGNAL.
Passive voltage-divider wiring reference
A passive string potentiometer uses three electrical connections. The wiper voltage follows string travel as a proportion of the excitation voltage.
Ideal relation: Vout ≈ Vexc × x / L. At 50% travel and 5V excitation, an ideal zero-offset output is 2.5V.
Illustrative colors only. Confirm the exact model pinout, maximum excitation and power rating. Do not apply 24V unless the specified unit permits it. Conditioned voltage and two-wire current-loop models need their own wiring diagram.
SPECIFY YOUR MEASUREMENT
Request a quote & configuration drawing
Tell us the stroke, signal and installation. We will review the configuration, availability and STEP request together.
Explore the other string pot series
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2″–50″ (50.8–1,270 mm)
Suspension travel, pedal movement and hydraulic test rigs
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1.5″–10″ (38.1–254 mm)
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10″–200″ (254–5,080 mm)
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Explore configuration →Motorsport string pots
5″–50″ (127–1,270 mm)
Baja / off-road suspension development and wet test fixtures
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1.5″–200″ (38.1–5,080 mm)
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