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Series 475

The Dwyer® Series 475 Mark III Handheld Digital Manometer is ideal for field calibration, monitoring or trouble shooting HVAC systems, clean rooms or a wide range of other low pressure pneumatic systems. This handy instrument measures positive, negative or differential pressures of air and natural gases in ranges from 1" w.c. (0.249 kPa) to 150 psid (10.34 bar). The Series 475-FM is approved and is intrinsically safe for hazardous locations, Class 1, Div.1, Group A, B,C, D, T4. Its simple operation and easy to read digital display make it an indispensable test instrument for the plant engineer, industrial hygienist and HVAC technician. When used with a Dwyer® Pitot tube, the Series 475 Mark III can also be used as an air velocity gage.

The Series 475-FM Mark III is housed in a durable extruded aluminum case with its solid state circuitry mounted on a tough fiberglass epoxy circuit board. To meet the most demanding applications and to provide stability of instrument reading, the 1" w.c. range is compensated for position sensitivity through use of a unique dual sensor system. A standard 9 volt battery provides up to 100 hours of operation. Dual push pads on the front panel control on-off, auto zero, and pressure unit selection. No setup or leveling. The large 0.42" LCD display is easy to read, minimizing data collection errors. Units include a "low battery" indicator. The pressure sensor used is a highly stable silicon piezoresistive device. Standard connections are dual sized for 1/8" or 3/16" I.D. vinyl or rubber tubing. Complete instructions are conveniently printed on rear of housing.

475-1-FM-AV475-1T-FM-AVAlso available is the convenient all-in-one kit (475-AV) is small, light and easy to use. No set-up or leveling needed. Included is a Pitot tube, two static pressure tips with magnetic mounting measure pressure drop across filters, condenser coils, etc. Kit comes complete with rubber tubing, 9V battery, step drill, AV calculator slide rule, and custom fitted carrying case. An indispensable test kit for the plant engineer, industrial hygienist and HVAC technician.

  • 475-000-FM
    Handheld digital manometer, range 0-1.000" w.c. (.2491 kPa), max. pressure 5 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $252.00
  • 475-00-FM
    Handheld digital manometer, range 0-4.000" w.c. (0.996 kPa), max. pressure 5 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $188.00
  • 475-0-FM
    Handheld digital manometer, range 0-10.00" w.c. (2.491 kPa), max. pressure 5 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $188.00
  • 475-1-FM
    Handheld digital manometer, range 0-20.00" w.c. (4.982 kPa), max. pressure 10 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series...

    $188.00
  • 475-2-FM
    Handheld digital manometer, range 0-40.00" w.c. (9.96 kPa), max. pressure 10 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • 475-3-FM
    Handheld digital manometer, range 0-200.0" w.c. (49.82 kPa), max. pressure 30 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series...

    $131.00
  • 475-4-FM
    Handheld digital manometer, range 0-10.00 psi (.6895 bar), max. pressure 30 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • 475-5-FM
    Handheld digital manometer, range 0-20.00 psi (1.379 bar), max. pressure 60 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • 475-6-FM
    Handheld digital manometer, range 0-30.00 psi (2.069 bar), max. pressure 60 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • 475-7-FM
    Handheld digital manometer, range 0-100.0 psi (6.895 bar), max. pressure 150 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • 475-8-FM
    Handheld digital manometer, range 0-150.0 psi (10.34 bar), max. pressure 200 psig. Dwyer Series 475 Mark III Handheld Digital Manometer Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy The Dwyer® Series 475...

    $131.00
  • Also available is the convenient all-in-one kit (475-AV)
    Air velocity kit, range 0-4.000" w.c. (0.996 kPa), max. pressure 5 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case. Dwyer Series 475 Mark III...

    $347.00
  • Also available is the convenient all-in-one kit (475-AV)
    Air velocity kit, range 0-10.00" w.c. (2.491 kPa), max. pressure 5 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case. Dwyer Series 475 Mark III...

    $347.00
  • Also available is the convenient all-in-one kit (475-AV)
    Air velocity kit, range 0-20.00" w.c. (4.982 kPa), max. pressure 10 psig, kit includes static pressure tips, rubber tubing, Pitot tube, step drill, air velocity slide chart and carrying case. Dwyer Series 475 Mark III...

    $347.00
  • Also available is the convenient all-in-one kit (475-AV)
    Air velocity kit, range 0-20.00" w.c. (4.982 kPa), max. pressure 10 psig, kit includes static pressure tips, rubber tubing, telescoping Pitot tube, step drill, air velocity slide chart and carrying case.   Dwyer...

    $466.00
  • Nylon carrying pouch
    Nylon carrying pouch for various digital manometers - 7-1/2" x 3" x 2-1/4".

    $41.75


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