Product guide

59
Humidity and Dew-Point Instruments
Please note: Michell Instruments adopts a continuous development program which sometimes
necessitates specifi cation changes without notice. Please contact us for latest version.
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Sensors
H5000 & 5100
Capacitive Relative Humidity Sensor
The operating principle of these capacitive relative humidity
sensors are based on the hygroscopic properties of their
polymer, which is used like a dielectric in a capacitor. The
polymer gets in equilibrium with its humid environment
quickly, and reversibly, and changes its capacity value
depending on the humidity level.
Highlights
• Capacitive thin fi lm sensor
• Measuring range: RH 0–100%, Temp: -30 to +200°C
(-22 to +365°F)
• Mixing ratio: 250g (8.82oz) water/kg of dry air
• Low hysteresis
• Response time: 4 seconds
Order Codes
H5-000 without protective housing Minimum order 50 pieces
H5-100 with protective housing Minimum order 50 pieces
Technical Specifi cations
H5000 H5100
Response time
90% of scale for a step change
from 11% to 75% RH
4 sec 4 sec
Operating range
Humidity
Temperature
Pressure
0–100% RH
-30 to +200°C
(-22 to +392°F)
0.04–30 bar
(0.6-400 psi)
0–100% RH
-30 to +100°C
(-22 to +212°F)
0.04–30 bar
(0.6-400 psi)
Mixing ratio 250g (8.82oz) water/Kg dry air
Nominal capacity
75% RH @ 23°C (73°F)
500 pF ± 10%
Sensitivity
11-75% RH @ 23°C (73°F)
0.86 pF / % RH
Linearity
11–90% RH @ 23°C (73°F)
± 2.5% RH
Long term stability
(12 months) control @
11% RH
< 1% at 23°C (73°F)
Maximum air speed
(without protection)
< 20m/sec
Hysteresis Typical value = 0.5% RH
D Factor loss tangent @10 KHz
75% RH @ 23°C (73°F)
Typical value = 0.007
Supply voltage
Peak-to-peak
2.5 V AC
DC component < 0.2 V
Operating frequency range 5–300 KHz
Protection cap
Weight
No
0.1g (0.0004oz)
Yes
1g (0.035oz)
Dimensions
6.0 mm (0.23") = 0.1mm
6.0 mm (0.23")
=
0.1mm
1.0
0.039"
1.8
0.071" mm3.2 mm (0.12")
0.6 mm
(0.023")
Issue No: H5000_97197_V2_UK_1110