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參數資料
| 型號： | 7280 |
| 廠商： | BI Technologies Corporation |
| 元件分類： | 數字電位計 |
| 英文描述： | 7/8 Diameter 10-Turn Wirewound Precision Potentiometer |
| 中文描述： | 7 / 8直徑10圈線繞精密電位器 |
| 文件頁數： | 2/5頁 |
| 文件大?。?/td> | 87K |
| 代理商： | 7280 |
2-98
Model 7280 Series
MECHANICAL
Total Mechanical Travel
Number of Gangs, Maximum
Weight, Nominal (single gang)
Backlash, Maximum
3600° + 15° – 0°
2
0.75 oz.
1°
7281, 7284, 7286
60 oz.-in.
25 lb.-in.
.010”
.003”
.004”
.005”
.003”
0.8 oz.-in.
7283
Static Stop Strength
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)
36 oz.-in.
N/A
.005”
.002”
.002”
.004”
.002”
0.6 oz.-in.
STANDARD RESISTANCE VALUES, OHMS
Theoretical
Resolution
(% Nominal)
Total
Tempco
of Wire
Resistance
100
200
500
1K
2K
5K
10K
20K
50K
100K
0.059
0.037
0.030
0.024
0.020
0.018
0.017
0.016
0.010
0.008
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
±20 ppm/°C
ENVIRONMENTAL (MIL-R-12934)
Operating Temperature Range
Static: –55°C to +125°C
Dynamic: –40°C to +125°C
5 cycles, –55°C to +125°C (5%
R)
100G’s (0.1ms discontinuity max.)
Temperature Cycling
Shock, 6ms Sawtooth
Vibration
Moisture Resistance
High Temperature Exposure
Rotational Load Life
Rotational Life Model 7288 (1 pound Side Load)
15G’s, 10 to 2,000 Hz (5%
R, 0.1ms discontinuity max.)
Five 24 hour cycles (3%
R)
1,000 hours at 125°C (5%
R)
1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5%
R)
1 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5%
R)
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