2
2-83 Model 7200 Series
MODEL 7200 SERIES
7/8” Diameter
10-Turn
Wirewound
Precision Potentiometer/
Position Sensor
ELECTRICAL
Resistance Range, Ohms 10 to 125K
Standard Resistance Tolerance ±3%
Minimum Practical Resistance Tolerance ±1%
Independent Linearity ±0.25%
Minimum Practical Independent Linearity ±0.25%, ≤20 Ohms
±0.15%, 21-49 Ohms
±0.10%, 50-99 Ohms
±0.075%, 100-999 Ohms
±0.05%, ≥1K Ohms
Power Rating, Watts 2.0 at 70°C derating to 0 at 125°C
Dielectric Strength 1,000V rms
Insulation Resistance, Minimum 1,000 Megohms
Noise, Maximum 100 Ohms
Actual Electrical Travel 3600° + 10° – 0°, > 25 Ohms
3600° + 10° – 5°, ≤25 Ohms
Tap Tolerance ±5°, ≤20 Ohms
±3°, 21-49 Ohms
±2°, ≥50 Ohms
End Voltage, Maximum (% of input voltage) 0.5%, <100 Ohms
0.25%, ≥100 Ohms
MODEL STYLES
7216, 7221 Bushing Mount, Sleeve Bearing
7223 Servo Mount, Ball Bearing
Specifications subject to change without notice.
Available in a Hybrid version – contact factory for details.
Updated 05/16/02.
SPECIAL FEATURES
Center Tap CT
Linearity Tape LT
Rear Shaft Extension RS
Flatted Shaft FS
Slotted Shaft SS
Shaft Lock (7216, 7221 only) SL
Additional Gangs 2G
2-84 Model 7200 Series
ENVIRONMENTAL (MIL-R-39023)
Operating Temperature Range Static: –65°C to +125°C
Dynamic: –40°C to +125°C
Temperature Cycling 5 cycles, –65°C to +125°C (5% ∆R)
Shock, 6ms Sawtooth 50G’s (0.1ms discontinuity max.)
Vibration 15G’s, 10 to 2,000 Hz (5% ∆R, 0.1ms discontinuity max.)
Moisture Resistance Ten 24 hour cycles (3% ∆R)
High Temperature Exposure 1,000 hours at 125°C (5% ∆R)
Rotational Load Life 2 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R)*
MECHANICAL
Total Mechanical Travel 3600° + 10° – 0°
Number of Gangs, Maximum 2
Weight, Nominal (single Gang) 1.25 oz.
Static Stop Strength 128 oz.-in.
Backlash, Maximum 1.5°
7216 7221 7223
Panel Nut Tightening Torque, Maximum 25 lb.-in. 25 lb.-in. N/A
Shaft End Play, Maximum .0085” .005” .005”
Shaft Runout, T.I.R., Maximum .001” .001” .001”
Pilot Diameter Runout, T.I.R., Maximum .001” .001” .0015”
Lateral Runout, T.I.R., Maximum .003” .003” .003”
Shaft Radial Play, Maximum .003” .003” .002”
Start/Run Torque, Maximum (per Gang) 0.6 oz.-in / 0.5 oz.-in.
* Model 7216 - Rotational Load Life = 1 mil. shaft rev.+900 hrs. at rated wattage at 70°C (5% ∆R)
2
2-85 Model 7200 Series
ORDERING INFORMATION
7216 R 10K T2 L .25 XX
Model Series
Resistance Prefix
Resistance Value
Optional Special
Feature Code
Linearity
Optional Non-
Standard Tolerance
MATCHING TURNS COUNTING DIALS
7216: 2606, 2606S, 2607, 2607S, 2626, 2627, 2646, 2646S, 2647, 2647S, RB
7221: RBJ, 2601, 2641
(CCW)
(S)
(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
NOTES
mm
INCH
CIRCUIT DIAGRAM
STANDARD RESISTANCE VALUES, OHMS
Theoretical
Total Resolution Tempco
Resistance (% Nominal) of Wire
10 0.083 + 800 ppm/°C *
25 0.055 + 800 ppm/°C *
50 0.048 + 800 ppm/°C *
100 0.040 + 800 ppm/°C *
200 0.033 + 800 ppm/°C *
500 0.031 ± 20 ppm/°C
1K 0.028 ± 20 ppm/°C
2K 0.025 ± 20 ppm/°C
5K 0.020 + 130 ppm/°C *
10K 0.018 + 130 ppm/°C *
20K 0.016 + 130 ppm/°C *
50K 0.012 ± 20 ppm/°C
100K 0.011 ± 20 ppm/°C
* Lower tempco available as a special model.
Mounting Surface
.625
15.9 R. Max.
1.832±.020 *
46.53±0.51
1.457±.009 **
37.01±0.23
Slider
CCW CW
"A"
"D"
.312±.016
7.93±0.41
+.000
-.010
+0.00
-0.25
.062
1.575
Dia.
+.0000
-.0005
+0.0000
-0.0127
.1248
3.1699
Dia.
*2G =
**2G =
3.200±0.30
81.28±0.76
2.825±0.16
71.76±0.41
Chamfer
.016/0.41 Max. x 45°
"B" "C"
.875±.016
22.2±0.41Dia.
.688±.031
17.475±0.787
+.0000
-.0003
+0.0000
-0.0076
.1248
3.1699
+.000
-.002
+0.000
-0.051
.281
7.137
.812±.031
20.625±0.787
+.0000
-.0003
+0.0000
-0.0076
.2500
6.3500
+.000
-.002
+0.000
-0.051
.406
10.312
1/4-32 UNEF Thread 3/8-32 UNEF Thread
Dim. 7221 7216
A
B
C
D
2-86 Model 7200 Series
OUTLINE DIMENSIONS (Inch/mm)
METRIC CONVERSIONS
1 in. 25.4 mm
1 oz. 28.4 gm
1 oz.-in. 0,007 N-m
1 lb.-in. 0,113 N-m
Model 7216 & 7221
Bushing Mount with Sleeve Bearing
2-87
2
Model 7200 Series
OUTLINE DIMENSIONS (Inch/mm)
.625
15.9 R. Max.
*2G =
**2G =
3.314±.030
84.18±0.76
2.939±.015
74.65±0.38
1.946±.020 *
49.43±0.51
1.571±.009 **
39.90±0.23
Slider
CCW
CW
Mounting Surface
.005
0.13 R. Max.
+.0000
-.0003
+0.0000
-0.0076
.1248
3.1699
+.000
-.001
+0.000
-0.025
.625
15.875
Dia. Typ.
Dia.
Dia. Dia.
.875±.005
22.2±0.13
.781
19.8 Dia. Max.
Chamfer- .016/0.406 Max. x 45°
.062±.005
1.58±0.13
.062±.005
1.58±0.13
.125±.005
3.18±0.13
.375±.031
9.53±0.79
.875±.016
22.2±0.79
Model 7223
Servo Mount with Ball Bearing
