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Item #: HD-21
Our Price: $595.00
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Description  more details

  • Pitot tube differential manometer
  • Measures Velocity, Volume Flow and temp
  • High and low velocity versions
  • Automatic Temperature Compensation
  • Data logging versions 36000 samples
  • Real time data logging to PC or printer
  • RS232C and USB connections
  • Max Min and Average functions
  • Software included for download and display
  • Large range of Pitot tubes
  • Large Backlit LCD Display
  • Batteries or external power supply
  • Special Pitot Tubes Available

The HD2114P.0 and HD2114P.2, HD2134P.0 and HD2134P.2 are portable micromanometers for pitot tubes. They are used to perform measurements in air conditioning, heating and ventilation systems. They measure the differential pressure measured from a Pitot tube connected to the inputs of the instrument. Based on the differential pressure the instrument calculates the air velocity. There is connection for K type thermocouple which can be used to make real time compensation for the air temperature. The dimensions of the ducts or vents can be entered on the keypad, and with this information the instrument can calculate volumetric flow rates. . The instruments can be used as thermometers and can be employed with any kind of thermo- couple K sensor if a standard miniature connector is used. The HD2114P.2 and HD2134P.2 instruments are dataloggers they can store up to 36000 samples which can be transferred from the handset to PC via the RS232C and USB serial ports. The logging interval, baud rate can be configured by the user, The instrument can also be used to aquire real time measurements to a PC or a printer. The max min average function calculates maximum, minimum and average values according to the user requirements. Other functions include REL - relativemeasurement and HOLD - current value

Model 2114P0 and 2114P2 2134P0 and 2134P2
Measuring Range 2 … 55m/s 2-180 m/s
  Speed 0.1°C or 1°C 0.1°F or 1°F 2 … 180m/s
  Differential Pressure ±20mbar ±200mbar
  Temperature with thermocouple -200 to +600 °C -200 to +600 °C
  Maximum Overpressure ±300mbar ±1bar
  Differential Pressure 0.005mbar - 0.5Pa 0.01mbar - 1Pa
  Speed 0.5 m/s - 1 km/h - 1 ft/min - 1 mph - 1 knots  
  Flow Rate 1l/s - 0.01·103m3/h - 0.01·103cfm  
  Temperature ±0.1°C
Accuracy ±0.4%f.s. ±0.3%f.s.
  Speed ± 2% of reading+0.1m/s ± 2% of reading+0.3m/s
  Temperature ±0.1 °C ±0.1 °C
  Maximum speed 2 m/s 2 m/s
Automatic Air Temperature compensation -200 to +600 °C
Manual Air Temperature compensation -200 to +600 °C
Units of Measure    
  Differential Pressure Pa - mbar - mmH2-PSI
  Speed m/s – km/h – ft/min – mph - knots
  Flow rate Vs-m3/h-cfm
  Temperature °C °F
Pipeline section for Volume flow rate calculation 0.0001…1.9999 m2
Display 2x4½ digits plus symbols
Dimensions 185x90x40mm
Weight 470 g
Case Materials ABS rubber
Batteries / life 4 1.5V type AA / 200h with 1800mAh alkaline
Mains power adapter (option) 100-240Vac/12Vdc-1A
Operating temperature /storage temperture -5…50°C / -25…65°C-25…65°C
Relative Humidity 0-90% non condensing
For use with non corrosive gases and air  

Computer Interface and data logging

USB 1.1 - 2.0 electrically isolated
RS232 8-pole MiniDin connector
Handshake Baud rate 38400; Parity None:Nbit 8;Stop bit 1: Protocol Xon/Xoff
Memory 36000 samples


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