Coudoint Precision Potentiometers Documentation
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Precision Potentiometers Hardware Reference Document 1101062 - Edition June 2009

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...

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...

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...

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...

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...

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...

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...

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:...

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...