General Specifications - Extech Instruments HD750 User Manual

Specifications

General Specifications

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Display Four digit LCD with function indicators
Units of Measure BAR, mBAR, psi, kg/cm
H O, cm H
2
Accuracy ±0.3%FS (@ 25°C)
Repeatability ±0.2% to 0.5% FS
Linearity/Hysteresis ±0.3%FS
Combined Accuracy ±1.1%FS
Maximum Pressure 10psi
Response time 0.5s typical
Input circuit Differential inputs (P1 and P2)
Input Ports Two metal 4.8mm, barbed for 1/8" (3.17mm) ID tubing
Data Hold Freezes displayed reading
Sensor Built in piezoelectric sensors
Zero / Offset function Pushbutton activation
Sample rate 0.5 sec. (approx.)
Compatibility Air or non corrosive and non ionized gas (not intended for use with
liquids)
Auto Power OFF Meter turns off after approx. 20 minutes to conserve energy (can
be deactivated)
PC Interface Built in USB serial interface
Storage conditions 0 to 60
Operating conditions 0 to 50
Battery power 9V alkaline battery (BAT low battery indicator)
Battery life 125 hours typical
Dimensions 210 x 75 x 50mm (8.2 x 2.9 x 1.9 )
Weight 280g (9.8oz)
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2
, mm Hg, inches Hg, kPa, feet H
2
O, and oz in
2
o o
C (14 to 140 F); < 80% RH
o o
C (32 to 122 F); < 80% RH
6
O, inches
2
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