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- Coudoint Precision Potentiometers Documentation
Coudoint Precision Potentiometers Documentation
Coudoint Precision Potentiometers Documentation
The precision potentiometers are designed with a modular structure, allowing multiple modules to be combined on a common shaft. They feature a black anodized machined housing, stainless steel shaft, precious metal double wiper, and gold alloy slip ring, ensuring high mechanical endurance, linearity, and resistance to shocks, vibrations, and corrosion. Production testing includes checks for noise resistance, continuity, linearity, dielectric strength, and insulation resistance.
Potentiometers are categorized into four classes: Precision, Heavy Industry, Light Industry, and Economy, each with different specifications for rotational life, linearity, operating temperature range, and dielectric strength.
This model offers ohmic values from 500 Ω to 10 kΩ, with features like a power dissipation of 1W, ohmic value tolerance of ±5%, and rotational life of 5 million shaft revolutions. It is mounted by clamps and does not support protection rings or multiple units.
Models PR-15, 152, SI-15: These models support ohmic values from 200 Ω to 50 kΩ, with power dissipation of 3W and rotational life up to 5 million revolutions. They offer various mounting options and terminal styles.
Models SI-15T, SI-15TC: Economy class models with similar ohmic range and power dissipation, but with a shorter rotational life of 500,000 revolutions.
Models PR-18, 182, SI-18: These models offer ohmic values from 200 Ω to 108 kΩ, with power dissipation of 6W and rotational life up to 5 million revolutions. They provide flexible mounting and terminal options.
Includes a code for identifying products and guidelines for replacing past models.
Examples include dual and triple module potentiometers, with options for special housing and intermediary taps.
The document outlines specifications for precision potentiometers, including ohmic values ranging from 200 to 108,000 Ω, mounting options, single or multiple assemblies, rotational stops, intermediary taps, electrical angles, and terminal styles. Optional features include special electrical/mechanical travel, disconnection angles, special intermediary tap designs, terminal wire customizations, protection against dust/liquid, and special shaft/flange designs.
Model 8018 is a continuous rotation model housed in anodized light alloy with a sealing gland. It mounts using 3 Ø M3 screws and weighs 220 g. It shares mechanical and electrical features with model 182.
The identification code includes model type, total ohmic value, electrical travel, type of front flange, intermediary tap, number of modules, and rotational stop. Additional optional features are specified separately.
Current models can replace former Coudoint models, with color-coded housings indicating the class of the potentiometer: brown for Precision, purple for Heavy Industry, and green for Light Industry/Economy.
- Dual Module Potentiometer: Features 2 modules of 200 Ω, special wired terminals, electrical travel of 158.5° ±1°, and special shaft/flange designs.
- Triple Module Potentiometer: Includes 3 modules with varying ohmic values, 12 wires, electrical travel of 55°/100°/110°, and special shaft/markings.
- Dual Module Potentiometer with Special Housing: Contains 2 modules of 1100 Ω, power rating of 8 W, housing diameter of 76.25 mm, and special terminal wires.
Catalog excerpts
Precision Potentiometers Hardware Reference Document 1101062 - Edition June 2009
Open the catalog to page 1
Precision Potentiometers Hardware Reference 1 Main Features Design: These wirewound potentiometers are constructed with: • a black anodized machined housing of light alloy, in 3 parts: front flange, skirt, rear flange • a stainless steel shaft supported by 2 precision roller bearings (except for the "Economy" class) • a precious metal double wiper • a gold alloy slip ring • a high-accuracy low-temperature coefficient winding The modular structure allows the achievement of ganged models with several modules ganged on a common shaft. Clamping rings facilitate the angular setting after assembly....
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Precision Potentiometers Hardware Reference 2 Product Selection Guide Reference Standard NFC-93265 Size 08 P = 1 watt Size 15 P = 3 watts Size 18 P = 6 watts "PRECISION" Class • Rotational life : 2 Millions shaft revolutions • Linearity: ± 0.1% to ± 0.05% • Operating temperature range: - 55 to + 1550C • Long term damp heat: 10 days • Dielectric strength: 750 VRMS • Final test report delivered with the parts PR-15 PR-18 "HEAVY INDUSTRY" Class • Rotational life : 5 Millions shaft revolutions • Linearity: ± 0.5% to ± 0.1% • Operating temperature range: - 25 to + 1250C • Long term damp heat: 56 days...
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Precision Potentiometers Hardware Reference 3 1-watt Series: Model 082 Range of achievable (total) ohmic values: 500 Ù to 10 kÙ Features: Model Features Units 082 Power dissipation at 85 °C W 1 Ohmic value tolerance % ± 5 Average linearity tolerance % ± 0.5 Electrical travel degree 354 ± 2 Maximum operating voltage V 70 Dielectric strength (50 Hz / 1 mn) V 1,500 Operating temperature range degree C -25 to +125 Long term damp heat (93% RH) days 56 Insulation resistance (under 500 VDC) MÙ 103 Positional tolerance on intermediary taps degree ± 1 Rotational life (shaft revolutions) 5,000,000 Average...
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Precision Potentiometers Hardware Reference Dimensions and mounting: Dimensions (mm) Mounting by clamps • Terminal wires: – A (yellow wire): beginning of stroke – B (red wire): slider – C (green wire): end of stroke While the shaft is rotating clockwise (seen from shaft end), the ohmic value between A and B varies from its minimum value to its maximum value (= ohmic value between A and C). • Panel mounting: – panel cut-out Ø 12 mm – mounting against the P face – by 3 clamps H with Ø M3 screws spaced 120 degrees apart (clamps and screws not supplied) Particular features of the model: • No possibility...
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Precision Potentiometers Hardware Reference 4 3-watts Series 4.1 Models PR-15, 152, SI-15 Range of achievable (total) ohmic values: 200 Ù to 50 kÙ Features: Models Features Units PR-15 152 SI-15 Power dissipation at 85 °C W 3 3 3 Ohmic value tolerance % ± 5 ± 5 ± 10 Average linearity tolerance % ± 0.1 ± 0.5 ± 1 Electrical travel degree 354 ± 1 354 ± 1 354 ± 1 Maximum operating voltage V 300 300 300 Dielectric strength (50 Hz / 1 mn) V 750 1,500 750 Operating temperature range degree C -55 to +155 -25 to +125 -10 to +85 Long term damp heat (93% RH) days 10 56 4 Insulation resistance (under 500...
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Precision Potentiometers Hardware Reference Dimensions and mounting: • Two different possibilities: - front flange with two threaded holes (3 mm deep) for mounting with Ø M3 screws (not supplied) : - front flange without mounting holes: Panel mounting with Ø 12 mm cut-out, against the P face, by 3 clamps H with Ø M3 screws spaced 120 degrees apart (clamps and screws not supplied) • Terminal wires: – A (yellow wire): beginning of stroke – B (red wire): slider – C (green wire): end of stroke While the shaft is rotating clockwise (seen from shaft end), the ohmic value between A and B varies from...
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Precision Potentiometers Hardware Reference 4.2 Models SI-15 T, SI-15 TC (Economy class) Model SI-15T Model SI-15TC Range of achievable (total) ohmic values: 200 Ù to 50 kÙ Features: Models Features Units SI-15 T SI-15 TC Power dissipation at 85 °C W 3 3 Ohmic value tolerance % ± 10 ± 10 Average linearity tolerance % ± 1 ± 1 Electrical travel degree 300 ± 2 300 ± 2 Maximum operating voltage V 300 300 Dielectric strength (50 Hz / 1 mn) V 750 750 Operating temperature range degree C -10 to +85 -10 to +85 Long term damp heat (93% RH) days 4 4 Insulation resistance (under 500 VDC) MÙ 103 103 Positional...
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Precision Potentiometers Hardware Reference Dimensions and mounting: Dimensions and mounting of model SI15-T Dimensions and mounting of model SI15-TC • Terminal lugs: – A (yellow mark): beginning of stroke – B (red mark): slider – C (green mark): end of stroke While the shaft is rotating clockwise (seen from shaft end), the ohmic value between A and B varies from its minimum value to its maximum value (= ohmic value between A and C). Particular features of the SI-15T and SI15-TC models • No possibility of protection ring or protection cap or multiple units • Panel mounting – Model SI-15T: only...
Open the catalog to page 10
Precision Potentiometers Hardware Reference 5 6-watts Series 5.1 Models PR-18, 182, SI-18 Range of achievable (total) ohmic values: 200 Ù to 108 kÙ Features: Models Features Units PR-18 182 SI-18 Power dissipation at 85 °C W 6 6 6 Ohmic value tolerance % ± 5 ± 5 ± 10 Average linearity tolerance % ± 0.1 ± 0.5 ± 1 Electrical travel degree 356 ± 1 356 ± 1 356 ± 1 Maximum operating voltage V 300 300 300 Dielectric strength (50 Hz / 1 mn) V 750 1500 750 Operating temperature range degree C -55 to +155 -25 to +125 -10 to +85 Long term damp heat (93% RH) days 10 56 4 Insulation resistance (under 500...
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