- Flow Meters - Models MF 315 & EF 325
Mechanical Flowmeter MF 315
- A simple and reliable, impeller driven instrument used to determine the flowing speed of a variety of moving flulds.
- Mechanical odometer displays total impeller revolutions in an adjustable time period. The calibration chart, provided, converts counts to velocity or distance.
- High accuracy.readings due to its ability to self align with the fluid flow. The pivoting axle located at the balance center, facilitates orientation with the flow along the in-situ gravitational line.
- Free flooding capacity allows for usage at any depth.
- Double-point, flexible, connection for use with plankton nets or other plankton collecting equipment.
- Rigid pivoting axle for mounting on fixed support
- Manufactured entirely from corrosion resistant materials.
Caracteristics:
Length overall: 21.30cm (8.40)
Body diameter: 4.15 cm (1.62)
Impeller diameter:
- Standard 7.50 cm (3.00)
- Low speed.12.50 cm (5.0)
Weight: 0.5 Kg (1 lb)
Materials: Polycarbonate body, nickel plated brass nose cone, nylon glass impregnated impeller, stainless steel shaft.
Depth rating: Full ocean depth (Free flooding)
Data readout: Manual resetting, six ten digits counter wheels, (000,000) reads ten counts per one impeller revolution
Accuracy: +/-3%
Response:
- Standard impeller 0.20 to 10.0 m/s
- Slow speed impeller.. 0.02 to 2.0 m/s
Recording:
- Standard impeller. 16 knots
- Slow speed impeller. 40 knots
Mechanical Flowmeter MF 315
Electronic Flowmeter EF 325
Description:
- Same measuring principle, materials, overall configuration and use as the mechanical flowmeter Model MF 315.
- Features a LCD display mounted on a battery operated integrated circuit board, that gives total impeller rotations enabling flow speed calculation.
- On/Off switch and reset capabilities.
- The LCD is activated for 10 seconds at a time
- Records one way only thereby prolonging the battery life.
- More accurate than the mechanical flowmeter due to less moving parts.
- Practically maintenance free being a self contained chamber
Dimensions:
Length, overall 27.30cm (0.15)
Body diameter 4.40 cm (1.75)
Impeller diameter:
- Standard 7.50 cm (3.0)
- Low speed12.50 cm (5.0)
Weight: 0.45 Kg (1 lb)
Materials: Polycarbonate body, nickel plated brass nose cone, nylon glass impregnated impeller, stainless steel shaft.
Depth rating: 600m (1900 ft)
Data readout: LCD display, up to 6 digits, (000,000) reads one count per one impeller revolution
Accuracy: +/-2%
Powered: 2 x AA batteries
Response:
- Standard impeller 0.2 -20.0 m/s
- Slow speed impeller.. 0.02 -2.0 m/s
Recording:
- Standard impeller. 26 knots
- Slow speed impeller 60 knots
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