MODEL 6370 SERIES 1-5/16” Diameter Single Turn Conductive Plastic 2 Precision Potentiometer / Position Sensor FEATURES • Anodized Aluminum Housing • Front and Rear Ball Bearings MODEL STYLES 6371 6373 1/4” Shaft, 3/8” Bushing 1/4” Shaft, Servo ELECTRICAL Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity* Minimum Practical Independent Linearity Input Voltage, Maximum Power Rating, Watts Dielectric Strength Insulation Resistance, Minimum Output Smoothness, Maximum Actual Electrical Travel, Nominal Electrical Continuity Travel, Minimum End Voltage, Maximum Tap Tolerance Resolution Temperature Coefficient** 1K to 300K ±10% ±5% ±0.5% ±0.1% 400Vdc not to exceed power rating 2.0 at 70°C derating to 0 at 125°C 1,000V rms 1,000 Megohms 0.1% 348° 350° 0.35% of Input Voltage 0.5% of Input Voltage Essentially infinite –800 ppm/°C Specifications subject to change without notice. * Linearity is measured between 1% and 99% of input voltage. ** Special tempco available to ±100ppm/°C. 2-75 Model 6370 Series ENVIRONMENTAL (MIL-R-39023) Operating Temperature Range Static: –65°C to +125°C Dynamic: –40°C to +125°C 5 cycles, –65°C to +125°C (10% ∆R) 100G’s (0.1ms discontinuity max.) 15G’s, 10 to 2,000 Hz (2% ∆R, 0.1ms discontinuity max.) Ten 24 hour cycles (10% ∆R) 1,000 hours at 125°C (0.5% ∆R) 5 mil. shaft rev. +900 hrs. at rated wattage at 70°C (10% ∆R) Temperature Cycling Shock, 6ms Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life MECHANICAL Total Mechanical Travel Number of Gangs, Maximum Weight, Nominal Shaft Runout, T.I.R., Maximum Pilot Diameter Runout, T.I.R., Maximum Lateral Runout, T.I.R., Maximum Shaft Radial Play, Maximum Start/Run Torque, Maximum 360° continuous 1 2.0 oz. .001” .0015” .002” .002” 0.7 / 0.5 oz.-in. STANDARD RESISTANCE VALUES, OHMS 1K 2K 5K 10K 20K 50K METRIC CONVERSIONS 1 in. 1 oz. 25.4 mm 28.4 gm 2-76 1 oz.-in. 1 lb.-in. 0,007 N-m 0,113 N-m Model 6370 Series OUTLINE DIMENSIONS (Inch/mm) Model 6671 Bushing Mount Mounting Surface 1.125±.031 28.58±0.79 CW .812 Max. 20.6 .875±.031 22.2±0.79 +.0000 -.0003 Dia. +0.0000 +.000 6.3424 -0.0076 .406 -.002 Dia. +0.000 10.312 -0.051 Slider 1.312±.016 Dia. 33.33±0.41 .2497 .625±.005 15.9±0.13 CCW .500±.016 12.7±0.41 Chamfer CT (If required) .125±.016 3.18±0.41 .016 Max. x 45° 0.41 3/8-32 UNEF Thread Locating Lug .125±.005 Dia. 3.18±0.13 .375±.016 9.53±0.41 OUTLINE DIMENSIONS (Inch/mm) Model 6373 Servo Mount CW CCW 1.062±.031 26.98±0.79 Mounting Surface +.0000 -.0003 Dia. +0.0000 6.3424 -0.0076 .2497 .500±.031 12.7±0.79 .750 Max. 19.1 .562±.005 14.3±0.13 1.1875 Dia. Max. 30.163 Slider +.0000 -.0005 Dia. +0.0000 30.1625 -0.0127 1.1875 1.312±.016 Dia. 33.33±0.41 CT (If required) .062±.005 1.58±0.13 .062±.005 1.58±0.13 1.312±.005 33.33±0.13 Chamfer .016 Max. x 45° 0.41 .062±.005 1.58±0.13 2-77 Model 6370 Series 2 SPECIAL FEATURES Center Tap Linearity Tape Flatted Shaft Slotted Shaft Rear Shaft Shaft Lock (6371 only) CT LT FS SS RS SL ORDERING INFORMATION 6371 R 10K T5 L .50 XX Optional Special Feature Code Model Series Resistance Prefix Linearity Resistance Value Optional Non-Standard Tolerance CIRCUIT DIAGRAM NOTES Metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures as in the original English units and are provided for general information only. (S) (CCW) INCH mm Tolerances unless otherwise specified: Linear = ± .01 inches (.25mm) Angular = ± 2 degrees (CW) 2-78 Model 6370 Series