Model 8140 Series
7/8” Diameter
10 Turn
*
Hybrid
Precision Potentiometer / Position Sensor
MODEL STYLES AVAILABLE
8141
8143
8144
8146
8148 (for heavy side load applications)
1/8” Shaft, 1/4” Bushing
1/8” Shaft, Servo
6 mm Shaft, 3/8” Bushing
1/4” Shaft, 3/8” Bushing
1/4” Shaft, 3/8” Bushing
ELECTRICAL
1
Resistance Range
Standard Resistance Tolerance
Minimum Practical Resistance Tolerance
Independent Linearity
2
Minimum Practical Independent Linearity
Power Rating
Dielectric Strength
Insulation Resistance
Output Smoothness
Actual Electrical Travel
End Voltage
Tap Tolerance (voltage tap only)
Resolution
Temperature Coefficient of Resistance
Temperature Coefficient of Output Voltage
3
1K to 100K ohms
±10%
±10%
±0.25%
±0.15%
2.0 Watts at 70°C, derating to 0 at 125°C
1,000 V rms
1,000 Megohms minimum
0.05% maximum <= 5 Kohms, 0.03% maximum above 5 Kohms
3600° nominal
maximum 0.2% of input voltage
± 0.05% of input voltage
essentially infinite
± 50 ppm/°C typical
±10 ppm/°C typical
MECHANICAL
Total Mechanical Travel
Number of Gangs
Weight (single gang)
Backlash
8141, 8144, 8146, 8148
Static Stop Strength
Panel Nut Tightening Torque
Shaft End Play
Shaft Runout
Pilot Diameter Runout
Lateral Runout
Shaft Radial Play
Start/Run Torque (per gang)
1
2
3600° +15° -0°
2 maximum
0.75 oz. nominal
1° maximum
8143
36 oz.-in.
n/a
0.005”
0.002”
0.002”
0.004”
0.002”
0.6 oz.-in.
maximum
maximum
maximum
maximum T.I.R.
maximum T.I.R.
maximum T.I.R.
maximum
maximum
60 oz.-in.
25 lb.-in.
0.010”
0.003”
0.004”
0.005”
0.003”
0.8 oz.-in.
Specifications subject to change without notice.
Linearity is measured between 1% and 99% of input voltage.
3
Measured with 10 VDC CW to CCW and slider at 50% of electrical travel.
* Model available in 3 & 5 turn versions.
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
September 18, 2012
Website: www.bitechnologies.com
Model 8140 page 1 of 4
Model 8140 series
Operating Temperature Range
Temperature Cycling
Shock
Vibration
Moisture Resistance
High Temperature Exposure
ENVIRONMENTAL (MIL-PRF-39023)
-40°C to +125°C dynamic, -55°C to +125°C static
5 cycles, -40°C to +125°C, maximum 5% ΔR
6 ms Saw-tooth, 100 G’s, 0.1 ms maximum discontinuity
15 G’s, 10 to 2,000 Hz, maximum 5% ΔR, 0.1 ms maximum discontinuity
Five 24 hour cycles, maximum 5% ΔR
1,000 hours at 125°C, maximum 5% ΔR
Rotational Load Life (1 lb side load for 8148) 5 million shaft revolutions + 900 hours at 2.0 Watts & 70°C, maximum 5% ΔR
ORDERING INFORMATION
8146 R 10K T10 L0.25 xx LF
Optional RoHS Compliant
Product Code
Optional Feature Code
(see table)
Linearity
Optional Non-standard Tolerance
Model Series
Resistance Prefix
Resistance Value
FEATURE CODES
Center Tap
Linearity Tape
Flatted Shaft
Slotted Shaft (standard on single gang 8146 without RS feature)
Rear Shaft Extension (8143, 8146 single cup only)
Shaft Lock (8141, 8146 only)
High Torque 2-6 oz.-in. (8146 only)
Additional Gang
Gold Plated Solder Lug Terminals (see optional terminal configuration)
CT
LT
FS
SS
RS
SL
HT
2G
FT
When multiple Feature codes
are used the P/N shall be in
the same sequence as listed in
this table (top to bottom).
CIRCUIT DIAGRAM
STANDARD RESISTANCE VALUES
1K
2K
5K
10K
20K
50K
100K
(S)
(CCW)
(CW)
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
September 18, 2012
Website: www.bitechnologies.com
Model 8140 page 2 of 4
Model 8140 series
MATCHING TURNS COUNTING DIALS
8141: RBJ, 2601, 2641
8146: 2606, 2607, 2626, 2627, 2646, 2126, 2606S, 2607S, 2646S, 2647S, RB
OUTLINE DRAWINGS
Models 8141 & 8146
Bushing Mount with Sleeve Bearing
Dim.
A
8141
8146
B
.1248
+.0000
-.0003
Dia.
+0.0000
3.1699
-0.0076
.281
+.000
-.002
Dia.
+0.000
7.137
-0.051
.688±.031
17.475±0.787
.2500
+.0000
-.0005
Dia.
6.3500
+0.0000
-0.0127
.406
+.000
-.002
Dia.
10.312
+0.000
-0.051
.812±.031
20.625±0.787
1.125±.031
28.58±0.79
Mounting
Surface
Dim.
A
.125
Min.
3.18
Dim.
B
Dim.
C
C
D
.750±.016
19.1±0.41
Slider
CCW
CW
1/4-32
UNEF Thread
3/8-32
UNEF Thread
.625
R Max.
15.9
75°
Max.
.080±.001
2.03±0.03
Dia.
.062
+.000
-.010
+0.00
1.58
-0.25
.312±.016
7.93±0.41
Dim. D
Chamfer
.016/0.41
Max. x
45°
Slot:
.032±.005/0.813±0.127
Wide X
.032+.010-.000/0.813+0.254-0.000
Deep
(Not on
Rear
Shaft
Models)
.875±.016
Dia.
22.2±0.41
Optional Terminal Configuration
40°
.625
R
MAX
15.9
R
MAX
SLIDER
.110
2.794
.060
±
.003
1.524
±
.076
Dia.
VIEW B
.020
Thickness
.062
±
.003
1.524
±
.076
Use Special Feature Code “FT” to order.
Enlarged View B
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
September 18, 2012
Website: www.bitechnologies.com
Model 8140 page 3 of 4
Model 8140 series
OUTLINE DRAWINGS (continued)
Model 8143
Servo Mount with Ball Bearing
1.250±.031
31.75±0.79
.875±.016
22.2±0.41
Slider
Mounting
Surface
.375±.031
9.53±0.79
.781
19.8
Dia.
Max.
.250
6.35
CCW
Min.
CW
.1248
+.0000
-.0003
Dia.
+0.0000
3.1699
-0.0076
+.000
-.001
+0.000
Dia.
15.875
-0.025
.625
.625
15.9
R.
Max.
105°
Max.
Clamp
Ears
.875±.016
22.2±0.41
Housing
Dia.
.080±.001
2.03±0.03
Dia.
+.005
.875
-.010
Dia.
+0.13
22.2
-0.25
Clamp
.922
Dia.
Max.
23.4
.057
1.45 Min.
.062±.005
1.58±0.13
.062±.005
1.58±0.13
Chamfer
.016/0.406 Max. x
45°
Optional Terminal Configuration
40°
SLIDER
.625
R
MAX
15.9
R
MAX
105°
MAX
.110
2.794
.060
±
.003
1.524
±
.076
Dia.
VIEW B
.020
Thickness
.062
±
.003
1.524
±
.076
Use Special Feature Code “FT” to order.
Enlarged View B
BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345
September 18, 2012
Website: www.bitechnologies.com
Model 8140 page 4 of 4
DIY/Open Source Hardware
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