Specifications - Extech Instruments HD750 User Manual

Specifications

General Specifications
Display
Units of Measure
Accuracy
Repeatability
Linearity/Hysteresis
Combined Accuracy
Maximum Pressure
Response time
Input circuit
Input Ports
Data Hold
Sensor
Zero / Offset function
Sample rate
Compatibility
Auto Power OFF
PC Interface
Storage conditions
Operating conditions
Battery power
Battery life
Dimensions
Weight
Range Specifications
Range/Units (Max.)
± 0.344bar
± 344.7mbar
± 5.000psi
2
± 0.351Kg/cm
± 258.5 mm Hg
± 10.18 inches Hg
± 34.47kPa
± 11.53feet H O
2
± 138.3inches H
± 351.5cm H O
2
2
± 80.00oz in
Warning: Pressure inputs of 10 psi or higher will damage the instrument. Do not
apply pressure higher than the maximum pressure listed in the specification table
Four digit LCD with function indicators
2
BAR, mBAR, psi, kg/cm , mm Hg, inches Hg, kPa, feet H
inches H O, cm H O, and oz in
2 2
±0.3%FS (@ 25°C)
±0.2% to 0.5% FS
±0.3%FS
±1.1%FS
10psi
0.5s typical
Differential inputs (P1 and P2)
Two metal 4.8mm, barbed for 1/8" (3.17mm) ID tubing
Freezes displayed reading
Built-in piezoelectric sensors
Pushbutton activation
0.5 sec. (approx.)
Air or non-corrosive and non-ionized gas (not intended for
use with liquids)
Meter turns off after approx. 20 minutes to conserve energy
(can be deactivated)
Built-in USB serial interface
o o
14 to 140 F (0 to 60 C); < 80% RH
o o
32 to 122 F (0 to 50 C); < 80% RH
9V alkaline battery (BAT low battery indicator)
125 hours typical
8.2 x 2.9 x 1.9" (210 x 75 x 50mm)
9.8oz (280g)
Resolution
O
2
6
2
2
0.001
0.1
0.001
0.001
0.1
0.01
0.01
0.01
0.1
0.1
0.01
HD750 V1.2 3/08
O,