7281 BITECH | Alldatasheet
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BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345 Website: www.bitechnologies.com 7/8” Diam eter
10 Turn W irew ound
Total Mechanical Travel 3600° +15° -0° Number of Gangs 2 maximum Weight (single gang) 0.75 oz. nominal Backlash 1° maximum 7281, 7284, 7286, 7288 7283 Static Stop Strength maximum 48 oz.-in. 36 oz.-in. Panel Nut Tightening Torque maximum 25 lb.-in. n/a Shaft End Play maximum 0.010” 0.005” Shaft Radial Play maximum 0.003” 0.002” M ECHANICAL ELECTRICAL 1 1 Specifications subject to change without notice. 2 Linearity is measured between 1% and 99% of input voltage. Resistance Range 100 to 100K ohms Standard Resistance Tolerance ±5% Minimum Practical Resistance Tolerance ±1% Independent Linearity 2 ±0.25% Minimum Practical Independent Linearity ±0.15% (<300 ohms), ±0.075% (≥300 ohms) Power Rating 2.0 Watts at 70°C, derating to 0 at 125°C Dielectric Strength 1,000 V rms Insulation Resistance 1,000 Megohms minimum Noise 100 ohms maximum Actual Electrical Travel 3600° +10° -0° (>100 ohms), 3600° +10° -5° (≤100 ohms) End Voltage maximum 0.25% of input voltage Tap Tolerance ±3° September 1, 2015 Model 7280 page 1 of 4 7281 1/8” Shaft, 1/4” Bushing 7283 1/8” Shaft, Servo 7284 6 mm shaft, 3/8” Bushing 7286 1/4” Shaft, 3/8” Bushing 7288 (for heavy side load applications) 1/4” Shaft, 3/8” Bushing M ODEL STYLES AVAILABLE RoH S 2 com pliant Pb
BI Technologies Corporation Phone: 714 447 2345 Website: www.bitechnologies.com September 1, 2015 Model 7280 page 2 of 4 Operating Temperature Range -40°C to +125°C dynamic, -55°C to +125°C static Temperature Cycling 5 cycles, -55°C to +125°C, maximum 5% ΔR Shock 6 ms Saw-tooth, 100 G’s, 0.1 ms maximum discontinuity Vibration 15 G’s, 10 to 2,000 Hz, maximum 5% ΔR, 0.1 ms maximum discontinuity Moisture Resistance Five 24 hour cycles, maximum 3% ΔR High Temperature Exposure 1,000 hours at 125°C, maximum 5% ΔR Rotational Load Life (1 lb side load for 7288) 1M shaft revolutions + 900 hours at 2.0 Watts & 70°C, maximum 5% ΔR Ingress Protection Rating (IP Code) IP50, IP66 available as option (feature code ES) ENVIRONM ENTAL (M IL-PRF-12934) ORDERING INFORM ATION Model Series Resistance Prefix Resistance Value Optional Feature Code (see table) No code required for slotted shaft 7284/7286/7288 or for plain shaft 7281/7283 Optional Non-standard Tolerance 7286 R 10K T2 L.25 xx FEATURE CODES M odel 7280 Linearity (CCW) (S) (CW) CIRCUIT DIAGRAM STANDARD RESISTANCE VALUES Total Resistance (Ohms) Theoretical Resolution (% nominal) Tempco of wire (ppm/ °C) 100 0.059 ±20 200 0.037 ±20 500 0.030 ±20 1K 0.024 ±20 2K 0.020 ±20 5K 0.018 ±20 10K 0.017 ±20 20K 0.016 ±20 50K 0.010 ±20 100K 0.008 ±20 7281, 7283 plain shaft 7284, 7286, 7288 slotted shaft no code Center Tap CT Linearity Tape LT Flatted Shaft FS Slotted Shaft (standard on single cup 7284, 7286 & 7288 without RS feature) SS Rear Shaft Extension (7281, 7286, 7288 single cup only) RS Shaft Lock (7286 & 7288 only) SL High Torque 2-6 oz.-in. (7286 & 7288 only) HT Additional Gang 2G Gold Plated Solder Lug Terminals (see optional terminal configuration) FT Seal (IP66) 7284, 7286, or 7288 only ES When multiple Feature Codes are used the P/N shall be in the same sequence as listed in this table (top to bottom).
BI Technologies Corporation Phone: 714 447 2345 Website: www.bitechnologies.com 40° SLIDER .625 R MAX
15.9 R MAX
September 1, 2015 Model 7280 page 3 of 4 M odel 7280 OUTLINE DRAW INGS .625 15.9 R Max. .875±.016 22.2±0.41 Dia. 75° Max. Slot: .032±.005/0.813±0.127 Wide X (Not on Rear Shaft Models) Chamfer .016/0.41 Max. x 45° Dim. D .312±.016 7.93±0.41 +.000 -.010 +0.00 -0.25 .062 1.58 .080±.001 2.03±0.03 Dia. 1.125±.031 28.58±0.79 Mounting Surface Dim. A Dim. B Dim. C .125 3.18 Min. .750±.016 19.1±0.41 Slider CCW CW Dim. 7286 & 728872847281 A B C D .688 ± .031 17.475 ± 0.787 .812 ± .031 20.625 ± 0.787 .812 ± .031 20.625 ± 0.787 +0.0000 -0.0003 +0.0000 -0.0076 Dia. .1248 3.1699 +0.0000 -0.0005 +0.0000 -0.0127 Dia. .2362 6.0000 +0.0000 -0.0005 +0.0000 -0.0127 Dia. .2500 6.3500 +0.000 -0.002 +0.000 -0.051 Dia. .281 7.137 +0.000 -0.002 +0.000 -0.051 Dia. .406 10.312 +0.000 -0.002 +0.000 -0.051 Dia. .406 10.312 1/4 - 32 UNEF Thread3 / 8 - 32 UNEF Thread 3/8 - 32 UNEF Thread Models 7281, 7284, 7286, & 7288 Bushing Mount with Sleeve Bearing Optional Terminal Configuration .110 2.794 .020 Thickness .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Dia. Use Special Feature Code “FT” to order. Enlarged View B M ATCHING TURNS COUNTING DIALS 7281: RBJ, 2601, 2641 7286, 7288: RB, 2126, 2606, 2606S, 2607, 2607S, 2626, 2627, 2646, 2646S, 2647, 2647S
BI Technologies Corporation Phone: 714 447 2345 Website: www.bitechnologies.com September 1, 2015 Model 7280 page 4 of 4 M odel 7280 40° SLIDER .625 R MAX 15. 9 R MAX VIEW B 105° MAX Optional Terminal Configuration .110 2.794 .020 Thickness .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Dia. Use Special Feature Code “FT” to order. Enlarged View B 105° Max. Clamp .922 23.4 Dia. Max. .625 15.9 R. Max. Clamp Ears .875±.016 22.2±0.41 Housing Dia. Slider .080±.001 2.03±0.03 Dia. .057 1.45 Min. .062±.005 1.58±0.13 .062±.005 1.58±0.13 Chamfer .016/0.406 Max. x 45° .625 15.875 +.000 -.001 +0.000 -0.025 .875 22.2 +.005 -.010 +0.13 -0.25 .1248 3.1699 +.0000 -.0003 +0.0000 -0.0076 Dia. Dia. Dia. Mounting Surface .375±.031 9.53±0.79 .781 19.8 Dia. Max. 1.250±.031 31.75±0.79 .875±.016 22.2±0.41 .250 6.35 Min.CCW CW Model 7283 Servo Mount with Ball Bearing OUTLINE DRAW INGS (continued)