MODEL 7200 SERIES
7/8” Diameter
10-Turn
Wirewound
Precision Potentiometer/
Position Sensor
MODEL STYLES
2
7216, 7221
7223
ELECTRICAL
Bushing Mount, Sleeve Bearing
Servo Mount, Ball Bearing
Resistance Range, Ohms
Standard Resistance Tolerance
Minimum Practical Resistance Tolerance
Independent Linearity
Minimum Practical Independent Linearity
Power Rating, Watts
Dielectric Strength
Insulation Resistance, Minimum
Noise, Maximum
Actual Electrical Travel
Tap Tolerance
End Voltage, Maximum (% of input voltage)
Specifications subject to change without notice.
Available in a Hybrid version – contact factory for details.
Updated 05/16/02.
10 to 125K
±3%
±1%
±0.25%
±0.25%,
≤
20 Ohms
±0.15%, 21-49 Ohms
±0.10%, 50-99 Ohms
±0.075%, 100-999 Ohms
±0.05%,
≥
1K Ohms
2.0 at 70°C derating to 0 at 125°C
1,000V rms
1,000 Megohms
100 Ohms
3600° + 10° – 0°, > 25 Ohms
3600° + 10° – 5°,
≤
25 Ohms
±5°,
≤20
Ohms
±3°, 21-49 Ohms
±2°,
≥50
Ohms
0.5%, <100 Ohms
0.25%,
≥100
Ohms
2-83
Model 7200 Series
ENVIRONMENTAL (MIL-R-39023)
Operating Temperature Range
Temperature Cycling
Shock, 6ms Sawtooth
Vibration
Moisture Resistance
High Temperature Exposure
Rotational Load Life
Static: –65°C to +125°C
Dynamic: –40°C to +125°C
5 cycles, –65°C to +125°C (5%
∆R)
50G’s (0.1ms discontinuity max.)
15G’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. + 900 hrs. at rated wattage at 70°C (5%
∆R)*
* Model 7216 - Rotational Load Life = 1 mil. shaft rev.+900 hrs. at rated wattage at 70°C (5%
∆R)
MECHANICAL
Total Mechanical Travel
Number of Gangs, Maximum
Weight, Nominal (single Gang)
Static Stop Strength
Backlash, Maximum
Panel Nut Tightening Torque, Maximum
Shaft End Play, Maximum
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 (per Gang)
SPECIAL FEATURES
7216
25 lb.-in.
.0085”
.001”
.001”
.003”
.003”
3600° + 10° – 0°
2
1.25 oz.
128 oz.-in.
1.5°
7221
7223
25 lb.-in.
N/A
.005”
.005”
.001”
.001”
.001”
.0015”
.003”
.003”
.003”
.002”
0.6 oz.-in / 0.5 oz.-in.
Center Tap
Linearity Tape
Rear Shaft Extension
Flatted Shaft
Slotted Shaft
Shaft Lock (7216, 7221 only)
Additional Gangs
CT
LT
RS
FS
SS
SL
2G
2-84
Model 7200 Series
STANDARD RESISTANCE VALUES, OHMS
Total
Resistance
10
25
50
100
200
500
1K
2K
5K
10K
20K
50K
100K
Theoretical
Resolution
(% Nominal)
0.083
0.055
0.048
0.040
0.033
0.031
0.028
0.025
0.020
0.018
0.016
0.012
0.011
* Lower tempco available as a special model.
Tempco
of Wire
+ 800 ppm/°C *
+ 800 ppm/°C *
+ 800 ppm/°C *
+ 800 ppm/°C *
+ 800 ppm/°C *
± 20 ppm/°C
± 20 ppm/°C
± 20 ppm/°C
+ 130 ppm/°C *
+ 130 ppm/°C *
+ 130 ppm/°C *
± 20 ppm/°C
± 20 ppm/°C
2
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
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)
(CW)
INCH
mm
Tolerances unless otherwise specified:
Linear = ± .01 inches
(.25mm)
Angular = ± 2 degrees
2-85
Model 7200 Series
OUTLINE DIMENSIONS (Inch/mm)
Model 7216 & 7221
Bushing Mount with Sleeve Bearing
*2G =
**2G =
3.200±0.30
81.28±0.76
2.825±0.16
71.76±0.41
1.832±.020 *
46.53±0.51
1.457±.009 **
37.01±0.23
Slider
CCW
CW
Mounting Surface
"A"
.625
R. Max.
15.9
"B"
+.0000
.1248 -.0005
Dia.
+0.0000
3.1699 -0.0127
Dim.
A
7221
.688±.031
17.475±0.787
+.0000
.1248
-.0003
+0.0000
3.1699
-0.0076
+.000
-.002
+0.000
7.137
-0.051
.281
C
1/4-32 UNEF Thread
7216
.812±.031
20.625±0.787
+.0000
.2500
-.0003
+0.0000
6.3500
-0.0076
+.000
-.002
+0.000
10.312
-0.051
.406
3/8-32 UNEF Thread
"C"
+.000
-.010
Dia.
+0.00
1.575
-0.25
.062
.312±.016
7.93±0.41
Chamfer
.016/0.41 Max. x 45°
"D"
.875±.016
Dia.
22.2±0.41
B
D
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
2-86
Model 7200 Series
OUTLINE DIMENSIONS (Inch/mm)
Model 7223
Servo Mount with Ball Bearing
*2G = 3.314±.030
84.18±0.76
**2G = 2.939±.015
74.65±0.38
1.946±.020 *
49.43±0.51
.375±.031
9.53±0.79
1.571±.009 **
39.90±0.23
Slider
CCW
Mounting Surface
.005
R. Max.
0.13
+.0000
-.0003
Dia. Typ.
+0.0000
3.1699 -0.0076
.1248
CW
+.000
-.001
Dia.
+0.000
15.875
-0.025
.625
.781
Dia. Max.
19.8
Chamfer- .016/0.406 Max. x 45°
.625
15.9 R. Max.
2
.875±.016 Dia.
22.2±0.79
.875±.005
Dia.
22.2±0.13
.062±.005
1.58±0.13
.125±.005
3.18±0.13
.062±.005
1.58±0.13
2-87
Model 7200 Series
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