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475-AV AIR VELOCITY KIT - Includes your choice of Series 475-FM Manometer, two A-303 static pressure tips, two 9 ft. lengths 3/16" I.D. rubber tubing, no. 166-6-CF Pitot tube, A-397 step drill, A-532 air velocity slide chart and instruction bulletin H-11, all packed in a tough, molded plastic carrying case with die cut foam liner.
Each kit includes the Dwyer® Series 475 Mark III Handheld Digital Manometer which 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 in. 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. Order the optional Air Velocity (AV) kit for air flow measurements.
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 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.
Service: | Air and compatible combustible gases. |
Wetted Materials: | Consult factory. |
Accuracy: | ±0.5% Full Scale, 60 to 78°F (15.6 to 25.6°C); ±1.5% Full Scale from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C). |
Pressure Hysteresis: | ±0.1% of Full Scale. |
Pressure Limits: | See Data Sheet. |
Temperature Limits: | 0 to 140°F (-17.8 to 60°C). |
Compensated Temperature Limits: | 32 to 104°F (0 to 40°C). |
Storage Temperature Limits: | -4 to 176°F (-20 to 80°C). |
Display: | 0.42" (10.6 mm) 4-digit LCD. |
Resolution: | See Data Sheet. |
Power Requirements: | 9 V alkaline battery, installed non-functional, user replaceable. |
Weight: | 10.8 oz. (306 g). |
Process Connections: | Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 475-7-FM & 475-8-FM only. |
Agency Approvals: | CE. |
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