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GENERAL DESCRIPTION & FEATURES
Thank you for your purchase of Delmhorst Instrument Co’s
HT-4000
handheld thermo-
hygrometer. The
HT-4000
offers the latest in features and functionality. , The meter is easy to
operate, measures ambient temperature, relative humidity, and calculates dewpoint, absolute
humidity (grains per pound), and vapor pressure. We recommend that you read the following
pages in detail to take full advantage of all that the
HT-4000
has to offer.
NOTE: THE HT-4000 AND HT-4000F ARE THE SAME INSTRUMENT. THE HT-4000F
DESIGNATION INDICATES THE METER IS SHIPPED WITH THE RH/T-S3 SENSOR THAT
COMPLIES WITH ASTM F2170 FOR IN-SITU TESTING OF RELATIVE HUMIDITY IN
CONCRETE FLOOR SLABS. THE HT-4000 IS SHIPPED WITH THE RH/T-S1 SENSOR FOR
WATER DAMAGE RESTORATION AND GENERAL INDUSTRIAL APPLICATIONS.
Specifications:
o
Measures RH over the range of 0-100% (with accuracy of +/- 2% over
10%-90%)
o
Measures temperature over the range of -40°F-255°F with accuracy of +/-
1.8°F over -4°F to 158F (range of -40°C - 124°C with accuracy of +/- 1°C
over -20° to 70°C)
o
Calculates Dew Point over the range of -40°F - 176°F (-40°C - 80°C)
o
Calculates GPP (Grains Per Pound) when in Fahrenheit mode over the
range of 0.1-3820 GPP
o
Calculates GPK (Grains Per Kilogram) when in Celsius mode over the
range of 0.01-545 GPK
o
Calculates PSI (Pounds Per Square Inch) when in Fahrenheit mode over
the range of 0-7 PSI
o
Calculates KPA (Kilopascals) when in Celsius mode over the range of 0-
47 KPA
o
Operating temperature - -4 to 158F (-20 to 70C)
o
Sensors - RH/T-S1 for water damage/restoration and general industrial
applications; RH/S3 for in-situ concrete floor slab testing (ASTM F2170)
Features:
o
Detachable RH Sensor with optional extension cable (RH/T-C1)
o
LCD backlit display
o
9V battery (included)
o
1-year warranty
o
Carrying Case (included)
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