HTS2030SMD Measurement Specialties Inc/MEAS France, HTS2030SMD Datasheet - Page 3

• Manufacturer Part Number: HTS2030SMD
• Description: SENSOR RH NTC CAP SIDE OPEN SMD
• Manufacturer: Measurement Specialties Inc/MEAS France

Specifications of HTS2030SMD

• Output Type: Analog Voltage
• Sensor Type: Humidity and Temperature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

HTS2030SMD – Temperature and Relative Humidity Sensor
•
•
TEMPERATURE SENSOR
•
Depending on the needed temperature measurement range and associated accuracy, we suggest two methods
to access to the NTC resistance values.
as the material parameter β in reality also depend on temperature. So this approach is suitable for describing a
restricted range around the rated temperature or resistance with sufficient accuracy.
complicated approaches (e.g. the Steinhart-Hart equation) are used or the resistance/temperature relation as
given in tabulation form. The below table has been experimentally determined with utmost accuracy for
temperature increments of 1 degree.
Actual values may also be influenced by inherent self-heating properties of NTCs. Please refer to MEAS-France
Application Note HPC106 “Low power NTC measurement”.
HTS2030SMD HPC055_G
Cp (pF)
Cp (pF)
RH (%)
RH (%)
The exponential relation only roughly describes the actual characteristic of an NTC thermistor can, however,
For practical applications, a more precise description of the real R/T curve may be required. Either more
Typical Response Look-Up Table (polynomial reference curve) @10kHz/1V
Reverse Polynomial Response
RH (%) = -3.4656 10
With X = C(read) / C@55%RH
Typical Temperature Output
161.6
180
55
0
163.6
181.4
60
+3
5
*X
3
+1.0732 10
R
R
T, T
β
e
165.4
182.9
10
65
T
N
N
NTC resistance in Ω at temperature T in K
Temperature in K
Beta value, material specific constant of NTC
NTC resistance in Ω at rated temperature T in K
Base of natural logarithm (e=2.71828)
+4
167.2
184.3
*X
15
70
2
-1.0457 10
R
T
www.meas-spec.com
=
169.0
185.7
R
20
75
N
3/8
×
+4
e
*X+3.2459 10
β
⎛
⎜ ⎜
⎝
170.7
187.2
T
1
25
80
−
T
1
N
⎞
⎟ ⎟
⎠
172.3
188.6
30
85
+3
173.9
190.1
35
90
175.5
191.6
40
95
177.0
193.1
100
45
July 2009
178.5
50