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HFT 3100 with HART interface is a compact flow rate transmitter with flameproof enclosure specially developed for applications in hydraulic systems and other fluid power systems.

The triple approval in accordance with ATEX, IECEx and CSA enables universal, worldwide utilization of the devices in potentially explosive atmospheres.

The HFT 3100 operates in accordance with the turbine principle, which means that the rpm of an impeller wheel rotating in the flow of the media is measured and converted into a 4 .. 20 mA analogue signal. In addition with the analogue output of the measured value, digital communication is possible by means of the HART protocol.

Two Additional G1/4 threaded bore holes in the turbine housing provide the flow rate transmitter with Additional connection options, e.g. for temperature and pressure sensors.
Unit of Measure

Features

Features

 N/A Protection types and applications:

cCSAus Explosionproof - Seal not required

Class I Group A, B, C, D, T6, T5

Class II Group E, F, G

Class III

Type 4

ATEX Flameproof

I M2 Ex d I Mb

II 2G Ex d IIC T6, T5 Gb

II 2D Ex tb IIIC T110 .. 120 ºC Db

IECEx Flameproof

Ex d I Mb

Ex d IIC T6, T5 Gb

Ex tb IIIC T110 .. 120 ºC Db

Specifications

Model Code Description

 N/A HFT 311G-F21-0020-S-1-D-000(2M)

Industry Standards/Certifications

 N/A CE Mark: EN 61000-6-1 / 2 / 3 / 4, EN 60079-0 / 1 / 31

Output Signal

 N/A 4 to 20 mA with HART

Type

 N/A Hazardous Rated Flow Meter

Mechanical Connection Type

 N/A G1/4, Female

Weight

 N/A 5.51 lb

Housing Material

 N/A Stainless Steel 1.4404

Wetted Material

 N/A Stainless Steel 1.4404, 1.4460, Tungsten Carbide

Electrical Connection

 N/A 1/2 in. NPT Conduit Connection with Open Ended Cable

DC Power Supply Voltage

 N/A 12 to 30 V

Accuracy

 N/A ≤ 2% of the Actual Value

Vibration Resistance According to DIN EN 60068-2-6 at 10 to 500 Hz

 N/A ≤ 10 g

Current Consumption

 N/A ≤ 25 mA

Residual Ripple of Supply Voltage

 N/A According to FSK Physical Layer Specification (HCF_SPEC_054) %

Measuring Medium

 N/A Hydraulic Oil, Water Based Fluid

White Wire Core

 N/A Signal -

Brown Wire Core

 N/A Signal +

Green Wire Core

 N/A Not Connected

Yellow Wire Core

 N/A Not Connected

Max. Operating Pressure

 N/A 6090 psi

Storage Temperature Range

 N/A -40 to 100 ºC

Degree of Protection

 N/A IP 69

Torque Value

 N/A 35 N·m

Measuring Range

 N/A 0.26 to 5.28 gpm

Viscosity Range

 N/A 1 to 100 cSt

Calibration viscosity

 N/A 30 cSt

T6, T110 Operating Temperature Range

 N/A -40 to 140 ºF

T6, T110 Fluid Temperature Range

 N/A -40 to 140 ºC