Data Industrial 228PV40 Посібник користувача - Сторінка 2

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Data Industrial

Plastic Tee Type Flow Sensor

"FM/CSA" Sensor

Designed for indoor or protected area applications where intrinsic safety is required and the flow rates are

between 0.5-30 feet/second and temperatures are below 221°F. FM/CSA sensors are supplied with 20 feet of

2-conductor 20 AWG shielded U.L. type PTLC 105°C cable. These sensors must be used with an approved

safety barrier.

"Magnetic" Sensor

Designed for use with the Series 1400 battery powered flow monitor in above or below or grade applications

such as irrigation, municipal, and groundwater monitoring where the flow rates are between 1-30 feet/second

and temperatures are below 221°F.

Model 228PV (Formerly 220P)

These models feature a modified

PVC tee with solvent weld socket

end connections, and a removable,

PPS or PVDF sensor insert. Sizes of

1 1/2, 2, 3 and 4 are available.

Model 228PD and 220PF

No longer in production - see

obsolete manuals @

www.dataindustrial.com

Mechanical Installation

General

The accuracy of flow measurement

for all flow measuring devices is

highly dependent on proper location

of the sensor in the piping system.

Irregular flow velocity profiles caused

by valves, fittings, pipe bends, etc.

can lead to inaccurate overall flow

rate indications even though local

flow velocity measurement may be

accurate. A sensor located in the

pipe where it can be affected by air

bubbles, floating debris, or sediment

may not achieve full accuracy and

could be damaged. Data Industrial

flow sensors are designed to operate

reliably under adverse conditions,

but the following recommendations

should be followed to ensure

maximum system accuracy:

1) Choose a location along the pipe where 10 pipe diameters upstream and 5 pipe diameters downstream of

the sensor provide no flow disturbance. Pipe bends, valves, other fittings, pipe enlargements and reductions

should not be present in this length of pipe.

2) The preferred location for the sensor around the circumference of a horizontal pipe is on top. If trapped air or

debris will interfere, then the sensor should be located further around the pipe from the top but not more than

45 degrees from top dead center. The sensor should never be located at the bottom of the pipe, as sediment

may collect there. Locations off top dead center cause the impeller friction to increase, which may affect

performance at low flow rates and increase wear. Any circumferential location is correct for installation in

vertical pipes. Rising flow preferred to reduce effects of any trapped air.

Manual

200 Series Plastic Tee Sensors Matrix (1½" to 4")

Style

Tee Mounted

Material

PVC

CPVC

Size

1.5"

Electronics Housing

PPS

PVDF

ELECTRONICS

Magnetic

FM/CSA Approved

Standard

IR-Irrigation (not available with PVDF sensors)

O-RING

Viton

EPDM

Kalrez

Food Grade Silicone

Neoprene

Chemraz

Teflon

Encapsulated Viton

Teflon

Encapsulated Silicone

Buna N

SHAFT

Zirconia Ceramic

Hastalloy C

Tungsten Carbide

Titanium

Monel

316 Stainless Steel

Tantalum

IMPELLER

Nylon

Tefzel

BEARING

Pennlon

Tefzel

Teflon

Chemraz

is a registered trademark of Green Tweed.

Kalrez

, Viton

, Teflon

, Tefzel

are registered trademarks of Dupont Dow Elastomers.

Monel is a registered trademark of Inco Alloys Int'l.

Hastalloy C is a registered trademark of Haynes Int'l Inc.

Example:

CPV