MODEL 7600 SERIES
1-13/16” Diameter 10-Turn Wirewound Precision Potentiometer
2
MODEL STYLES
7601 7603
ELECTRICAL
1/4" Shaft, 3/8" Bushing 1/4” Shaft, Servo
Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity Minimum Practical Independent Linearity
Power Rating, Watts Input Voltage, Maximum Dielectric Strength Insulation Resistance, Minimum Noise, Maximum Actual Electrical Travel
Electrical Continuity Over Travel Tap Tolerance
End Voltage, Maximum
Specifications subject to change without notice. *May require external pads.
1K to 650K ±5% ±1% ±0.15% ±0.1%, < 500 Ohms ±0.05%, 500-4,999 Ohms *±0.025%, ≥ 5K Ohms 5.0 at 70°C derating to 0 at 125°C 1,000Vdc Not to Exceed Power Rating 1,000V RMS 1,000 Megohms 100 Ohms 3,600° + 3° -0°, ≤ 300 Ohms 3,600° + 2° -0°, 301-2,500 Ohms 3,600° + 1° -0°, > 2,500 Ohms +90° ±5° at each end ±2°, ≤ 300 Ohms ±1°, 301-2,500 Ohms ±0.5°, ≥ 2,500 Ohms Within Std. Linearity Tolerance
2-115
Model 7600 Series
ENVIRONMENTAL (MIL-R-12934)
Operating Temperature Range Temperature Cycling Shock, 6ms Sawtooth Vibration Moisture High Temperature Exposure Rotational Load Life
MECHANICAL
Static: –65°C to +125°C Dynamic: -40°C to +125°C 5 cycles, –65°C to +125°C (5% ∆R) 100G’s (0.1ms discontinuity max.) 5G’s, 10 to 2,000 Hz (5% ∆R, 0.1ms discontinuity max.) Ten 24 hour cycles (3% ∆R) 1,000 hours at 125°C (5% ∆R) 2 mil. shaft rev. plus 900 hrs. at rated wattage at 70°C (5% ∆R)
Total Mechanical Travel Number of Cups, Maximum Weight, Nominal (per gang) Static Stop Strength Backlash, Maximum Shaft End Play, Maximum Shaft Runout, T.I.R., Maximum Pilot Diameter Runout, T.I.R., Maximum Lateral Runout, T.I.R., Maximum Starting Torque, Maximum Running Torque, Maximum Panel Nut Tightening Torque, Maximum Shaft Radial Play, Maximum
3,780° ± 5° 2 5.5 oz. 600 oz.-in. Essentially zero .005" .0005" .001" .0015" 1.3 oz.-in. 0.9 oz.-in. 7601 7603 25 lb.-in. N/A 0.002" 0.001"
STANDARD RESISTANCE VALUES, OHMS
Total Resistance 1K 5K 10K 20K 50K 100K
Theoretical Resolution (% Nominal) 0.019 0.011 0.012 0.009 0.007 0.006
Tempco of Wire ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C
2-116
Model 7600 Series
OUTLINE DIMENSIONS (Inch/mm) Model 7601 Bushing Mount 2.719±.031 69.06±0.79 2.219±.031 56.36±0.79 Slider CCW CW
Mounting Surface .812±.031 20.6±0.79 +.0000 -.0003 Dia. +0.0000 6.3424 -0.0076 .2497 60° Max. 1.203 R. Max. 30.56
2
1.812±.016 Dia. 46.03±0.41
.405±.001 Dia. 10.3±0.03 +.000 -.010 +0.00 1.58 -0.25 .062 .312±.016 7.93±0.41 Chamfer .013/0.41 Max. x 45°
3
.562±.016 14.3±0.41
/8 -32 UNEF Thread
Locating Hole .129±.005/3.277 ± 0.127 Dia. x .094±.016/2.388±0.406 Positioned as shown.
OUTLINE DIMENSIONS (Inch/mm)
Model 7603 Servo Mount 2.625±.031 66.68±0.79 2.125±.031 53.98±0.79 Slider CW CCW
Mounting Surface .625±.031 15.9±0.79 +.0000 -.0003 +0.0000 6.3424 -0.0076 .2497 60° Max. 1.203 R. Max. 30.56
1.812±.016 Dia. 46.03±0.41
.093±.005 2.36±0.13
Chamfer .016/0.41 Max. x 45° .062±.005 1.58±0.13
+.000 -.001 Dia. +0.00 47.63 -0.03 1.875 +.005 -.010 Dia. +0.13 50.80 -0.25 2.000
METRIC CONVERSIONS
1 in. 1 oz.
25.4 mm 28.4 gm
1 oz.-in. 1 lb.-in.
0,007 N-m 0,113 N-m
2-117
Model 7600 Series
SPECIAL FEATURES
Center Tap Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft Shaft Lock (7601 only)
ORDERING INFORMATION
CT LT RS FS SS SL
7601 R 10K L.15 XX Model Series Resistance Prefix Resistance Value Optional Special Feature Code Linearity
MATCHING TURNS COUNTING DIALS
7601: 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606S, 2607S, 2646S, 2647S, RB
CIRCUIT DIAGRAM
NOTES
(S) (CCW) (CW)
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. Tolerances unless otherwise specified: Linear = ± .01 inches (.25mm) Angular = ± 2 degrees
INCH mm
2-118
Model 7600 Series