Measuring element Digital sensor (CMOS)
Display
4 lines, LCD technology.
Dimensions 1
31
/
32
x 1
13
/
32
’’ (50 x 36 mm)
2 lines of 5 digits with 7 segments (value)
2 lines of 5 digits with 16 segments (units)
Cable Coiled, 17
23
/
32
’’ (0.45 m) length, expanding to 94 ½’’ (2.4 m)
Housing ABS, protection IP54
Keypad 5 keys
Standards
2014/30/EU EMC; 2014/35/EU Low Voltage;
2011/65/EU RoHS II; 2012/19/EU WEEE; FCC part 15
Power supply 4 batteries AAA LR03 1.5 V
Battery life 150 hours
Ambience Neutral gas
Conditions of use
°F (°C), %RH, p2-yd (m)
From 14 to +122 °F (from -10 to +50 °C).
In non condensing conditions.
From 0 to 2,188 p2-yd (from 0 to 2,000 m)
Operating temperature
(probe)
From -4 to +158 °F (from -20 to +70 °C)
Storage temperature From -4 to +176 °F (-20 to +80 °C)
Auto shut-off Adjustable from 0 to 120 min
Weight 0.683 lbs (310 g)
General features
Dimensions (in ‘‘/mm)
Kit content
DS_EN-US – HD110 – 01/10/24 – Non-contractual document – We reserve the right to modify the characteristics of our products without prior notice.
Operating principle
Measurement of Capacitive Hygrometry
In capacitive probes, a sensitive polymer layer responds to the humidity
trapped between two metal layers on a glass substrate. The amount of
water absorbed is inuenced by the relative humidity of the surrounding
environment, which changes the dielectric constant. The measured signal
is directly proportional to the relative humidity and is unaffected by am-
bient pressure.
Maintenance
We provide calibration, adjustment, and maintenance for your instru-
ments to ensure consistent measurement quality. As part of our Quality
Assurance Standards, we recommend conducting an annual check-up.
Semiconductor Temperature Sensor
The forward voltage of a silicon diode changes with temperature, follow-
ing the equation below:
V
BE
= V
G0
(1-T/T
0
)+V
BE0
(T/T
0
)+(nKT/q)ln(T
0
/T)+(KT/q)ln(IC/IC
0
)
T = Temperature in Kelvin
V
G0
= Voltage of the band gap at the absolute zero
V
BE0
= Voltage of the band gap at T
0
and IC
0
K = Boltzmann constant
q = charge of an electron
n = Dependent constant of the instrument
Couche polymère sensible à l'humidité
Électrode métallique poreuse
Électrode de
connexion
Substrat de verreÉlectrode
principale
Humidity sensitive polymer layer
Porous metal electrode
Electrode
Glass substractMain electrode
Polímero
Electrodo métálico
Electrodo
de conexión
Sustrato
de vidrio
Electrodo
principal
C = Capacity of relative humidity sensor
ε
RH
= Relative dielectric permittivity,
humidity dependent
ε
O
= Void permittivity
A = Electrodes area
d = Electrodes spacing
HR = Relative humidity
Model
Part
number
Description
HD 110 24614
Thermo-hygromter with hygrometry
probe Ø ½’’ (13 mm), 4
11
/
32
’’ (110 mm)
length, calibration certicate and soft
transport case
HD 110 S 24715
Thermo-hygromter with hygrometry
probe Ø ½’’ (13 mm), 4
11
/
32
’’ (110 mm)
length, adjustment certicate and soft
transport case
Certicates
Calibration Certicate
Involves comparing an instrument’s values to a standard
to determine measurement errors and associated uncer-
tainties. A calibration certicate ensures that measure-
ments are traceable to national standards.
Adjustment Certicate
A document that veries a device’s conformity with the
tolerances specied in its data sheet. It conrms that the
device has adhered to the manufacturing process.
Accessories
Model
Part
Number
Description
CQ 15 24633 Magnetic protective housing
RTE 24632
Telescopic extension, 39
3
/
8
’’ (1 m)
length, with index at ±90°
ST 110 24635 Soft transport case
2 25/32’’ / 71.5 mm
5 25/32’’ / 147.9 mm
1 11/32’’ / 34.2 mm
3’’ / 76.7 mm
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