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testo 312-3 - Pressure measuring instrument up to 300/6000 hPa

0632 0314
  • Load and tightness tests of gas pipes
  • Pressure testing of water pipes using air
  • Switchable measuring ranges with high resolution
  • Alarm indicator for undershooting of freely adjustable limit values
  • testo 312-3, robust manometer up to 300/6000 hPa, DVGW approval, incl. alarm display, battery and calibration protocol
    testo 312-3, the versatile manometer for the pre-test and main test on gas and water pipelines up to 87 psi. Pressure changes caused by changes in temperature during the measurement are balanced out by the temperature compensation function.

    testo 312-3 pressure measuring instrument, including battery and calibration protocol.

    Pressure measurement

    Measuring range
    -2400 to 2400 InH₂O / -6000 to 6000 hPa
    -120 to 120 InH₂O / -300 to 300 hPa
    Accuracy
    ±1.5 % of mv (> 20 InH₂O) / ±1.5 % of mv (> 50 hPa)
    ±0.2 InH₂O (0 to +20.0 InH₂O) / ±0.5 hPa (0 to +50.0 hPa)
    ±2 InH₂O (0 to +160 InH₂O) / ±4 hPa (0 to +400 hPa)
    ±2 % of mv (+160 to +800 InH₂O) / ±2 % of mv (+400 to +2000 hPa)
    ±4 % of mv (+800 to +2400 InH₂O) / ±4 % of mv (+2000 to +6000 hPa)
    Resolution
    0.1 InH₂O (-120 to +120 InH₂O) / 0.1 hPa (-300 to +300 hPa)
    1 InH₂O (-2400 to +2400 InH₂O) / 1 hPa (-6000 to +6000 hPa)
    Overload rel. (low pressure)
    ±3200 InH₂O / ±8000 hPa

    General technical data

    Dimensions
    8 x 3 x 2 in. / 215 x 68 x 47 mm
    Operating temperature
    41° to 113 °F / +5 to +45 °C
    Housing
    ABS
    Alarmsignal
    audible; rpm - Optical
    Alarm untere Grenze
    -0.04 hPa
    Alarm upper threshold
    100 hPa
    Battery type
    9V block battery
    Display type
    LCD
    Display size
    2 lines
    Storage temperature
    -4° to 140 °F / -20 to +60 °C
    Weight
    11 oz. / 300 g