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Handheld Digital Psychrometer | Enthalpy Meter
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$287.00
HHAQ-106
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Integral 6" Long Sensor-Tipped Probe for Measuring Conditions Inside Ductwork
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Probe Swivels, Increasing Placement Options
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Choice of Imperial or Metric Units for All Measured Parameters Except Relative Humidity
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4-Digit LCD
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Low Battery Indicator and 2-Minute Auto Power Off
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View related products - Relative Humidity Measurement Instruments
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Omega’s HHAQ-106 handheld
psychrometer with enthalpy can
measure any environment’s ambient
temperature, relative humidity (RH),
dew point and wet bulb temperatures,
absolute humidity (mixing ratio) and
enthalpy of vaporization. These
measurements are typically made by
three groups of users: Water damage
restoration contractors, HVAC/R
system installers and technicians and
professionals charged with monitoring
and maintaining the environment
of facilities such as office buildings,
greenhouses, food and equipment
storage facilities, wineries, freezers,
shipping containers, computer rooms,
labs, libraries, museums and saunas.
The dew point is the temperature below
which the water vapor in a volume
of air at a given constant barometric
pressure will condense into liquid water
at the same rate at which it evaporates.
Condensed water is called dew when
it forms on a solid surface. Another
way to think of dew point is as an air
saturation temperature associated with
relative humidity (RH). A high RH value
indicates that the dew point is close to
the current ambient air temperature.
At 100% RH, the dew point temperature
is equal to the ambient temperature
because the air is completely
saturated with water. The wet bulb
temperature is the temperature that
a volume of air would have if it were
cooled to saturation (100% RH) by the
evaporation of water into it, with the
latent heat coming from the volume
of air. It is the lowest temperature that
can be reached under current ambient
conditions by the evaporation of water
only. The wet bulb temperature is
the temperature you feel when your
skin is wet and exposed to moving
air as opposed to the actual air
temperature—the dry bulb temperature.
An environment’s absolute humidity
level (or mixing ratio) can be measured
and expressed in units of grains per
pound (GPP) or g/kg. GPP is a more
useful moisture metric than RH to water
damage remediators. Using RH alone,
a remediator might unknowingly
introduce moist air—with a low RH but a
high GPP—during a job’s drying phase.
The sixth environmental parameter that
the HHAQ-106 can measure is enthalpy.
Enthalpy is a measure of the amount
of energy needed to change the state
of a substance from a solid to a liquid
or from a liquid to a gas. The most
common application for the
HHAQ-106 enthalpy-calculating
algorithm is measuring the enthalpy of
vaporization of air in an HVAC/R
system duct.
SPECIFICATIONS
Ambient Temperature Measurement
Range: -20 to 70°C (-4 to 158°F)
Ambient Temperature Measurement
Accuracy: 0.5°C (±0.9°F) from -10 to 40°C (14 to 104°F); 1°C (±1.8°F) elsewhere in range
Temperature Measurement
Resolution: 0.1°
RH Measurement Range: 0 to 100%
RH Measurement Accuracy: ±3% from 20 to 80% RH; ±3.5% elsewhere
RH Measurement Resolution: 0.1%
Probe Length: 150 mm (6")
Display Size: 38 mm (1.5") diagonal
Current Consumption: <10 mA
Battery Life: 1000 hours (typical)
Dimensions: 209 L x 47 W x 47 mm D (8.23 x 1.85 x 1.85")
Weight (Without Battery): 63 g (2.2 oz)
Power Source: Three “AA” batteries (included)
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† All dollar amounts on this site are shown in Singapore currency.
Note: Comes complete with rubber bushing for inserting the probe into ductwork, three “AAA”
batteries and operator’s manual.
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Keywords:digital Psychrometer, handheld psychrometer, psychrometer with Enthalpy, enthalpy, enthalpy meter
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