What are you looking for?
Bronkhorst
Datasheet D-6471-DR3

MASS-STREAM D-6471/DR3 MFC

Direct Thermal Mass Flow Controller for Gases, IP65 protected

  • Proven direct inline CTA sensor (no bypass)
  • Compact, rugged design (IP65, dust and waterproof)
  • Suited for applications with low pressure drop
  • Less sensitivity to humidity or dirt
  • Optional with integrated TFT display
  • Very good price-performance ratio
Get a quote Downloads Datasheet
MASS-STREAMD-6471/DR3 MFC

IP65 Mass Flow Controllers for high gas flow at Low-ΔP

Bronkhorst® model D-6471/DR3 Mass Flow Controllers (MFCs) are suited for precise measurement of flow ranges between 6…300 ln/min and 60…3000 ln/min at operating pressures between 30 mbar and 5 bar(g). The MFC consists of a proven inline thermal (CTA) mass flow sensor, an advanced, innovative control valve and a microprocessor based pc-board with signal and fieldbus conversion. As a function of a setpoint value, the flow controller swiftly adjusts the desired flow rate. The instument is IP65 complient and can optionally be equipped with a modern, multi-functional and multi-colour display, with operator buttons on the instrument.

The digital MASS-STREAM™ series is characterized by a high degree of signal integrity and, as an option, up to 8 calibration curves of different gases and process conditions can be memorized in the instrument. In addition to the standard RS232 output the instruments also offer analog I/O. As an option, an on-board interface can be mounted to provide CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS protocols.

Note: Please respect our instructions regarding inlet pressure and straight pipe run at the inlet and the outlet of the instrument (see datasheet).

Technical specifications

Measurement / control system
Flow range (intermediate ranges available)min. 6…300 ln/min
max. 60…3000 ln/min
(based on N2)
Accuracy (incl. linearity) (based on actual calibration)± 1.0% RD plus ± 0.5% FS (at calibration conditions)
Repeatability< ± 0,2 %FS
Turndown ratioup to 1:50
Type of gasesall gases, compatible with chosen materials
Settling time (in control, typical)approx. 2 sec.
Control stability< ± 0,2% FS typical
Operating temperature0…50°C
Temperature sensitivity< ± 0,1% Rd/°C (Air)
Max. Kv-value3,0
Leak integrity, outboard1 x 10-6 mbar.l/s He
Attitude sensitivityat 90° deviation from horizontal 0,2% at 1 bar typical N2
Warm-up time30 min. for optimum accuracy, within 30 seconds for accuracy < ± 4% FS
Mechanical parts
Sensorstainless steel SS316 (AISI 316L)
Instrument bodyaluminium EN AW-6082-T6
Pressure rating (PN)5 bar(g)
Min. ΔP≥ 30 mbar(d)
Max. ΔP2 bar(d)
Process connections1" BSPP (G1"; ISO 1179-1 cavities),
Note: please apply straight inlet/outlet run for optimal performance (see datasheet for more details)
SealsFKM / Viton®;
Membrane: fiber (PET) reinforced FKM
Weight2 kg
Ingress protectionIP65
Electrical properties
Supply voltage+15…24 Vdc ±10%
Max. power consumption
Supply
15 V
24 V		 at voltage I/O
102 mA
66 mA		 at current I/O
125 mA
84 mA		 add. for fieldbus
80 mA
50 mA		 add. for display
102 mA
66 mA
Analog output0…5 (10) Vdc, min. load impedance > 2 kΩ; 0 (4)…20 mA (sourcing),
max. load impedance < 375 Ω
Analog setpoint0…5 (10) Vdc, min. load impedance > 100 kΩ; 0 (4)…20 mA,
load impedance ~250 Ω
Digital communicationstandard: RS232
options: CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS
Electrical connection
PROFIBUS DPbus: 5-pin M12 (female)
power: 8 DIN (male)
CANopen® / DeviceNet™5-pin M12-connector (male)
FLOW-BUS/Modbus-RTU/ASCII5-pin M12-connector (male)
Power/Analog/RS232/RS4858 DIN (male)
PROFINETbus: 2 x 5-pin M12-connector (male)
power: 8 DIN (male)
Control valve options
External actuator options to be connected to the controller
Certification for hazardous areas
Approvals / certificates

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page on our website

Downloads

Brochures
MASS-STREAM D-6471-DR3 Datasheet
Manuals
Manual MASS-STREAM D-6400 instruments
Manual MASS-STREAM D-6400 display
Quick installation guide D-6400 series
Hook-up diagrams
Analog I-O RS232
DeviceNet
FLOW-BUS
Modbus
PROFIBUS DP with 5-pin M12 connector
CANopen
Industrial Ethernet
Optional Bus and I-O Configurations
Dimensional drawings
Dimensional Drawing D-6471/DR3
Dimensions Mass-Stream fieldbus cases (option)
Dimensions BSPP ISO 1179-1 adapters (option)
Solids 3D
D-6471-DR3
Download as PDF

Bronkhorst High-Tech designs and manufactures innovative instruments and subsystems for low-flow measurement and control for use in laboratories, machinery and industry. Driven by a strong sense of sustainability and with many years of experience, we offer an extensive range of (mass) flow meters and controllers for gases and liquids, based on thermal, Coriolis and ultrasonic measuring principles. Our global sales and service network provides local support in more than 40 countries. Discover Bronkhorst®!