HTF3223 Measurement Specialties Inc/MEAS France, HTF3223 Datasheet - Page 3

• Manufacturer Part Number: HTF3223
• Description: SENSOR RH CAP NTC THERM
• Manufacturer: Measurement Specialties Inc/MEAS France

Specifications of HTF3223

• Rohs Status: RoHS non-compliant
• Output Type: Frequency, NTC Thermistor
• Sensor Type: Humidity and Temperature

Typical temperature output
C
Temperature sensor
Depending on the needed temperature measurement range
and associated accuracy, we suggest two methods to access to
the NTC resistance values.
Temperature
Nominal resistance @ 25°C
Beta value : B25/100
Temperature measuring range
Nominal Resistance Tolerance
B value tolerance
Response Time
1
Characteristics
°C
HARACTERISTICS
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
Resistance
NTC resistance in Ωat temperature T in K
NTC resistance in Ωat rated temperature in K
Temperature in K
B value,material-specific constant of the NTC thermistor
Base of natural logarithm (e =2.71828)
144790
136664
129054
121925
115243
109030
103115
97565
92354
87460
82923
78581
74497
70655
67039
63591
60381
57356
54503
51813
49204
46767
44467
42296
40247
38279
36455
34731
(ohm)
16636
15444
14343
13325
12383
11516
10705
Deviation
9953
9257
8612
8020
7463
6947
6468
6023
5606
5222
4865
4533
4225
3932
3662
3411
3177
2960
2756
2568
2393
Max.
(Ta = 25°C)
Temperature
°C
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Resistance
33100
31557
30029
28627
27299
26042
24852
23773
22708
21698
20739
19829
18959
18128
17338
16588
15876
15207
14569
13962
13384
12834
12280
11777
11297
10840
10404
10000
(ohm)
Symbol
Rn
Ta
τ
B
B
Deviation
2230
2078
1932
1799
1675
1560
1452
1355
1261
1174
1093
1017
Max.
946
879
817
759
705
654
607
563
522
484
447
413
382
353
325
300
The actual characteristic of an NTC thermistor can, however, only
be roughly described by the exponential relation,as the material
parame ter B in reality also depends on temperature. So this
approach is only suitable for describing a restricted range around
the rated temperature or resistance with sufficient accuracy.
2 For practical applications a more precise description of the real
R/T curve may be required. Either more complicated approaches (e.g
the Steinhart-Hart equation) are used or the resistance/
temperature relation as given in tabulated form. The below table
has been experimentally determined with utmost accuracy for
temperature increments of 1 degree.
Temperature
3600
Min.
°C
- 30
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
9600
9218
8853
8506
8178
7866
7568
7283
7011
6734
6484
6244
6015
5796
5575
5373
5180
4995
4817
4636
4473
4316
4166
4021
3874
3737
3606
3481
Resistance
(ohm)
3730
Typ.
10
10
2
3
Deviation
300
300
299
297
296
294
292
290
287
284
281
278
275
271
267
264
260
257
253
248
245
241
237
233
229
225
221
217
Humirel Sensor Device Data / HPC014 Rev G July 2001
Max.
TECHNICAL
Temperature
Max.
3800
°C
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
80
3
Resistance
3360
3237
3126
3019
2917
2819
2720
2629
2542
2458
2378
2304
2229
2158
2089
2022
1960
1898
1839
1782
1727
1673
1622
1573
1526
1480
1432
(ohm)
3
Unit.
%
°C
k Ω
%
s
DATA
Deviation
213
208
204
200
197
193
189
185
182
178
175
171
168
165
161
158
155
152
149
146
143
140
138
135
132
130
127
Max.