Toshiba LF410/LF602 Grounding of the Combined type and Separate type, Piping Precautions

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LF410/LF600 LF410/LF602

Piping Precautions

(1)Design piping so that the flowmeter detector pipe is always filled with the fluid being measured,

whether the fluid is flowing or not.

(2)The detector has no adjustable piping mechanism. Install an adjustable short pipe where needed.

(3) The required straight pipe length should comply with the requirements as follows.

(4)Be sure to grounding the flowmeter according to below figure.

 

°

L5D

Upstream side

When using a 90 bent, Tee, diffuser, or fully opened valve

When using other types of valves

L10D

 

Downstream side

When no valve plate protrudes into the detector pipe

L0

L:Required straight pipe length

 

D:Meter size

Grounding of the Combined type and Separate type

Combined type

Separate type

Grounding terminal

Grounding terminal

Grounding wire

Grounding wire

Grounding terminal

(100 ohm or less

ground resistance)

Gasket

(100 ohm or less

Gasket

ground resistance)

(100 ohm or less

 

ground resistance)

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Contents Measurement range in terms of flow velocity Overall SpecificationsModel LF600 and LF602 converters Model LF410 and LF414 DetectorsCommunications output : HARTstd Digital output DO1 stdDigital output DO2 opt Vibration resistance Cable connection ports Cable glandsDimensions InstallationSeparate type detectors LF410 and LF414 Meter size 15mm 1/2 Separate type detectors LF410 and LF414 Meter size 25mm Combined type LF410/LF600 and LF414/LF600 flowmeters External ConnectionsSeparate type LF410/LF602 and LF414/LF602 flowmeters Wiring Precautions Profibus Wiring PrecautionsGrounding of the Combined type and Separate type Piping PrecautionsPED matrix in each flange connection Meter SizeTo select the meter size Calibration RangeAbout establishment environment Ordering InformationSpecification Code Wafer type detector LF410 Series Specification Code for converters ISO9001 and ISO14001 are certified