1.Applications
This specifications is applied to relative humidity sensor Type SJL31.
Guaranteed impedance: 31kΩ at 25℃,60%RH
2.Ratings & electronic characteristics
Supply voltage: Less than AC5.0V AC1.0V is recommended.
Test wave shape: Sine or square wave shape.
With frequency 500~2,000Hz
1kHz is recommended.
Power consumption: Less than 2mW
Humidity range: 20－95%RH(in operation) 10－95%RH(in storage)
Temperature range: 0－50℃(in operation) -20－70℃(in storage)
Hysteresis: <2%RH
Response time
moisture absorption tim: <15S
moisture doffing time: <20S
Stability: <2%RH Per year
Interchangable characteristics: (-5%RH~5%RH)
Typical humidity sensor Characteristics: See following table 1
3.Outline Dimensions (Unit:mm)
4.Typical humidity sensor Characteristics(table 1)
|
0℃ |
5℃ |
10℃ |
15℃ |
20℃ |
25℃ |
30℃ |
35℃ |
40℃ |
45℃ |
50℃ |
|
|
20%RH |
10M |
6700 |
4680 |
3900 |
3000 |
2400 |
1750 |
1450 |
|||
|
25%RH |
10M |
7000 |
5000 |
3400 |
2420 |
1900 |
1500 |
1100 |
880 |
700 |
|
|
30%RH |
6400 |
4600 |
3249 |
2350 |
1800 |
1260 |
1050 |
850 |
650 |
560 |
420 |
|
35%RH |
2900 |
2100 |
1428 |
1099 |
851 |
640 |
520 |
430 |
330 |
260 |
190 |
|
40%RH |
1450 |
1070 |
676 |
520 |
403 |
298 |
268 |
237 |
185 |
130 |
110 |
|
45%RH |
700 |
500 |
343 |
264 |
204 |
152 |
145 |
120 |
88 |
70 |
56 |
|
50%RH |
370 |
260 |
182 |
140 |
107 |
81 |
76 |
63 |
51 |
41 |
33 |
|
55%RH |
190 |
140 |
106 |
82 |
63 |
49 |
44 |
36 |
30 |
24 |
19 |
|
60%RH |
108 |
84 |
66 |
50 |
39 |
31 |
27.5 |
23 |
18.5 |
15.2 |
12.4 |
|
65%RH |
62 |
49 |
41 |
31.5 |
24.4 |
20 |
16 |
13.6 |
11.7 |
9.5 |
7.8 |
|
70%RH |
38 |
33 |
26 |
20 |
15.5 |
14.2 |
11 |
9.2 |
7.4 |
6.1 |
4.9 |
|
75%RH |
23 |
18 |
15.5 |
12.5 |
10.4 |
8.5 |
7.4 |
6.1 |
5.2 |
4.1 |
3.3 |
|
80%RH |
16 |
12.3 |
10 |
8.2 |
7.2 |
5.9 |
5.1 |
4.3 |
3.5 |
2.8 |
2.6 |
|
85%RH |
10.8 |
8.5 |
7.0 |
6.2 |
4.8 |
3.9 |
3.5 |
2.8 |
2.3 |
1.9 |
1.6 |
|
90%RH |
7.5 |
5.2 |
4.8 |
4.3 |
3.4 |
2.8 |
2.4 |
1.9 |
1.6 |
1.4 |
1.2 |
|
95%RH |
5.2 |
3.6 |
3.4 |
3.0 |
2.4 |
2 |
1.8 |
1.5 |
1.2 |
1.0 |
0.9 |
|
Drop test (Dropped onto wooden plate from a height of 1m, 3 times) |
Passed |
|
Vibration test (Amplitude of 5mm, X, Y, Z directions, 10Hz for 20 min.) |
Passed |
|
Tensile strength of lead wire (Pulled with 1kg load for 10 sec.) |
Passed |
|
Lead wire bending test (lead wire was bended to 90 degreeswith 250g load, and bended again to opposite direction.) |
Passed |
|
Test conditions |
Variation |
|
|
1 |
Sensors are stored in high temperature(80℃) for 1,000 hrs. |
＜±5%RH |
|
2 |
Sensors are stored in low temperature(-20℃) for 1,000 hrs. |
＜±5%RH |
|
3 |
Sensors are stored in high temperature and high humidity (50℃,90%RH) for 1,000 hrs. |
＜±5%RH |
|
4 |
Sensors are stored in low humidity (25℃, less than 15%RH) for 1,000 hrs. |
＜±5%RH |
|
5 |
Sensors are energized in high temperature(80℃) for 1,000 hrs. Supply voltage is AC1.0V, 1kHz. |
＜±5%RH |
|
6 |
Sensors are energized in high temperature and high humidity (50℃,90%RH) for 1,000 hrs. Supply voltage is AC1.0V, 1kHz. |
＜±5%RH |
|
7 |
200 cycles of dewing condition for 10 minutes – drying condition for 10 minutes. |
＜±5%RH |
8.Reliability 2 (Organic solvent vapor, corrosive gases test)
|
Test conditions |
Variation |
|
1 Methanol (1000ppm, 100 hrs.) |
＜±5%RH |
|
2 Ethanol (1000ppm, 100 hrs.) |
＜±5%RH |
|
3 Ammonia (1000ppm, 100 hrs.) |
＜±5%RH |
|
4 Acetic acid (1000ppm, 100 hrs.) |
＜±5%RH |
|
5 Mixed solvents (Benzene 3 : Toluene 3: |
Xylene 4, 1000ppm, 100 hrs.) ＜±5%RH |
|
6 H2S (200ppm, 20 hrs.) |
|
|
7 Acetone (1000ppm, 100 hrs.) |
＜±5%RH |
|
8 SO2 (200ppm, 20 hrs.) |
＜±5%RH |
