HTM25X0LF Measurement Specialties, HTM25X0LF Datasheet - Page 2

• Manufacturer Part Number: HTM25X0LF
• Description: Temperature And Relative Humidity Module
• Manufacturer: Measurement Specialties

HTM25X0LF – Temperature and Relative Humidity Module
PERFORMANCE SPECS
MAXIMUM RATINGS
Ratings
Storage Temperature
Storage Humidity
Supply Voltage (Peak)
Humidity Operating Range
Temperature Operating Range
Peak conditions: less than 10% of the operating time
NOMENCLATURE
ELECTRICAL CHARACTERISTICS
(Ta=23°C, Vs=5Vdc +/-5%, R
Humidity Characteristics
Humidity Measuring Range
Relative Humidity Accuracy (10 to 95% RH)
Supply Voltage
Nominal Output @55%RH (at 5Vdc)
Current consumption (HTM2500LF)
Current consumption (HTM2530LF)
Temperature Coefficient (10 to 50°C)
Average Sensitivity from 33% to 75%RH
Sink Current Capability (R
Recovery time after 150 hours of condensation
Humidity Hysteresis
Long term stability
Time Constant (at 63% of signal, static) 33% to 76%RH
Output Impedance
(Ta=25°C)
HTM25X0LF HPC169 Rev 0
Temperature Characteristics
Nominal Resistance @25°C
Beta value: B25/50
Temperature Measuring Range
Nominal Resistance Tolerance @25°C
Beta Value Tolerance
Response Time
(1) At 1m/s air flow
HTM25X0LF
L
L
=15kΩ)
Output Temperature Sensor:
>1MΩ unless otherwise stated)
Symbol
RHstg
Tstg
RH
Vs
Ta
X = 0 – Direct NTC Output
X = 3 – Voltage Output
-40 to 85
-40 to 85
0 to 100
0 to 100
Value
12
www.meas-spec.com
% RH
% RH
(1)
Unit
Vdc
°C
°C
2/9
ΔVout/ΔRH
Symbol
Symbol
Vout
Ta
R
Tcc
RH
RH
Vs
R
β
β
τ
Ic
Ic
Is
tr
T
Z
τ
N
4.75
2.42
Min
3347
Min
-40
1
+/-1.5
+/-0.5
5.00
2.48
+0.1
Typ
+/-3
+26
1.0
3.4
3380
10
70
Typ
5
10
10
1
Max
5.25
2.54
+/-5
300
1.2
3.6
99
3413
Max
85
1
mV/%RH
%RH/°C
%RH/yr
July 2009
%RH
%RH
%RH
Unit
Vdc
mA
mA
µA
Ω
Unit
V
s
s
kΩ
°C
%
%
K
s