No. Item
Test Methods
Independent linearity should vary no more than ±2% within ±160° to 50% voltage ratio.
Taper : linear, 100%/333.3° Measured with the circuit as below (Figure 1).
Linearity1
The rotary position sensor should be subjected to each of the following temperatures (see Table 1) for 30-45 minutes.
Temperature coefficient of resistance should be applied to the following formula.
TCR= Z 10
6
(ppm/°C)
t
1 : Reference temperature in degrees celsius
t
2 : Test temperature in degrees celsius
R
1 : Resistance at reference temperature in ohm
R
2 : Resistance at test temperature in ohm
Note * : Reference temperature
R
2 – R1
R1 (t2 – t1)
Temperature
Coefficient of
Resistance
2
Guarantee limit for linearity
100%
50%
100% / 333.3°
-160° 0° +160°
0%
CCW CW
Rotational angle (°)
Output voltage ratio (%)
V (1-2)
V (1-3)
X100
GND (#1)
Connection Impedance : 1M ohm min.
DC5V (#3)
Output (#2)
Figure-1
Sequence
Temperature (°C) +25
*1
-40
2
+25
*3
+85
4
The rotary position sensor should be subjected to Table 2 temperature for 5 cycles.
Then, the rotary position sensor should be kept in the dry box for 24 +8/-0 hrs.
Temperature
Cycle
(Thermal Shock)
3
The rotary position sensor should be stored in a chamber at temperature of +60±2°C and relative Humidity of 90-95% for 250±8
hrs. After removing from the chamber, the rotary position sensor should be kept in the dry box for 24 +8/-0 hours.
Humidity4
The rotary position sensor should be tested under the condition of the amplitude of 1.5mm, the frequency range from 10 to 55Hz
(should be traversed in approximately one minute) and 2 hours in each of 3 mutually perpendicular directions (total 6 hours).
Then, the rotary position sensor should be kept in the dry box for 1-2 hrs.
Vibration5
The rotary position sensor should be tested under the condition of the peak acceleration 20G max. in half-sine wave and 5 shocks
in each of 3 mutually perpendicular directions (total 15 shocks). Then, the rotary position sensor should be kept in the dry box for
1-2 hrs.
Shock6
Full rated continuous working voltage not exceeding 5Vdc should be applied intermittently between terminal #1 and terminal #3 of
the rotary position sensor, 1.5 hours on and 0.5 hours off, for 96±4 hours in total in a chamber at a temperature of +40±2°C and
relative humidity of 90-95%. After removing from the chamber, the rotary position sensor should be kept in the dry box for 24 +8/-
0 hours.
Humidity Load
Life
7
The rotary position sensor should be stored in a chamber at the temperature of +85±3°C without loading for 250±8 hours. After
removing from the chamber, the rotary position sensor should be kept in the dry box for 24 +8/-0 hours.
High Temp.
Exposure
8
The rotary position sensor should be stored in a chamber at the temperature of -40±3°C without loading for 168±4 hours. After
removing from the chamber, the rotary position sensor should be kept in the dry box for 24 +8/-0 hours.
Low Temp.
Exposure
9
The adjustment rotor should be continuously rotated within ±160° of effective electrical rotational angle, at the rate of one cycle for
6 seconds for 1 Million cycles under the condition of +25±2°C of temperature without loading.
Rotational Life10
Sequence
Temperature (°C)
Time (min.)
-40±3
30
1
+25±2
5 max.
2
+85±3
30
3
+25±2
5 max.
4
Table-1 Test temperatures
Table 2: One cycle of temperature cycle
Angle Sensing Potentiometer Specifications and Test Methods
82
9
!Note
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
!Note
R50E13.pdf 04.6.11
