Celesco RT9101 · Absolute Rotary Position Sensor · 500 Ω – 10 KΩ potentiometer / bridge output · 0.25–50 turns
The Celesco RT9101 is the potentiometer-output rotary twin of the PT9101: RT9101 – RRRR – A B C – D E F G. Example: RT9101-0020-231-3110 = 20-turn range, stainless enclosure, 0.25 in. shaft with flats, 5000 Ω potentiometer, 6-pin connector.
RT9101–0020–231–3110ModelRangeOptionsSignal / Connection
Order Code Table
R · Full Stroke Range (clockwise shaft rotations)
| Code | Meaning |
|---|
| 0R25 | 0.25 turns (accuracy 0.3%) |
| 0R50 | 0.50 turns (0.3%) |
| 0001 | 1 turn (0.3%) |
| 0002 | 2 turns (0.3%) |
| 0003 | 3 turns (0.3%) |
| 0005 | 5 turns (0.2%) |
| 0010 | 10 turns (0.15%) |
| 0020 | 20 turns (0.15%) |
| 0030 | 30 turns (0.15%) |
| 0050 | 50 turns (0.15%) |
A · Enclosure Material
| Code | Meaning |
|---|
| 1 | Powder-painted aluminum |
| 2 | 303 stainless steel |
B · Shaft Diameter
| Code | Meaning |
|---|
| 1 | 0.25 in. diameter (Ø.2497 in.) |
| 2 | 6 mm diameter (Ø5.995 mm) |
| 3 | 0.25 in. diameter with flats |
| 4 | 6 mm diameter with flats |
C · Reserved
| Code | Meaning |
|---|
| 1 | Fixed digit (reserved position) |
D · Sensing Circuit
| Code | Meaning |
|---|
| 1 | 500 Ω potentiometer (tolerance ±10%) |
| 2 | 1000 Ω potentiometer (±10%) |
| 3 | 5000 Ω potentiometer (±10%) |
| 4 | 10,000 Ω potentiometer (±10%) |
| 5 | Fixed bridge, 2 mV/V full scale |
| 6 | Adjustable bridge, 0…30 mV/V |
E · Reserved
| Code | Meaning |
|---|
| 1 | Fixed digit (reserved position) |
F · Electrical Connection
| Code | Meaning |
|---|
| 1 | 6-pin plastic connector with mating plug — IP67, NEMA 4X/6 |
| 2 | 10 ft. [3 m] waterproof cable — IP67, NEMA 4X/6 |
| 3 | 6-pin metal connector with mating plug — IP65, NEMA 4 |
| 4 | 25 ft. [7.5 m] instrumentation cable, 24 AWG shielded — IP67, NEMA 4X/6 |
| 5 | 100 ft. [30 m] waterproof cable — IP67, NEMA 4X/6 |
| 6 | 10 ft. [3 m] pressure-tested waterproof cable — IP68, NEMA 4X/6P |
| 7 | 100 ft. [30 m] pressure-tested waterproof cable — IP68, NEMA 4X/6P |
G · Reserved
| Code | Meaning |
|---|
| 0 | Fixed digit (reserved position) |
Special Options & Notes
- RT9101 range codes use R as a decimal point: 0R25 = 0.25 turns, 0R50 = 0.5 turns.
Frequently Asked Questions
What does RT9101-0020-231-3110 mean?
A Celesco RT9101 with a 20-turn range (0020), 303 stainless steel enclosure (2), 0.25 in. shaft with flats (3), 5000 Ω potentiometer sensing circuit (3) and a 6-pin plastic connector with mating plug (1).
How does RT9101 differ from RT9420?
Identical mechanics and option structure. The RT9101 outputs resistance (500 Ω–10 KΩ potentiometer or mV/V bridge); the RT9420 outputs a 4–20 mA / 0–20 mA current loop signal.
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