Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar

Product catalog summary

Overview: The Huba Control Type 679 is a volume flow transmitter designed for bi-directional pressure ranges, suitable for measuring pressure, flow, or velocity. It is applicable in HVAC, industrial, and medical sectors due to its versatile versions and precise, stable measurements.

Key Features:

Bi-directional pressure measurement with ranges from -1 to 1 mbar and 0 to 50 mbar.
Adjustable measurement range and switchable output signals.
Resettable zero point and full-scale adjustment capabilities.
Fast and easy mounting with an integral bracket for wall or ceiling installation.
Adjustable k-Factor for flow and velocity measurements.

Technical Specifications:

Medium: Air and neutral gases.
Temperature Range: 0 to +70°C for operation, -10 to +70°C for storage.
Overload Capacity: Up to 100 mbar depending on pressure range.
Materials: Ceramic sensor, silicone diaphragm, polycarbonate housing.
Electrical Output: Options include 4-20 mA, 0-10 V, and 0-20 mA with various power supply requirements.
Protection: IP 54 and IP 65 with cover, short circuit and polarity reversal protection.

Display and Adjustments:

LCD display with backlight option, adjustable between flow and velocity units.
Zero point and full-scale adjustments via reset button and DIP-switch.
Units available: mbar, Pa, mmWS, kPa, hPa, inH2O for pressure; m³/s, m³/h, cfm, L/s for flow; m/s, fpm for velocity.

Installation and Accessories:

Recommended vertical installation with pressure connections downwards.
Accessories include connection kits for vent ducts and DIN-rail mounting adaptors.

Compliance and Certifications:

CE conformity according to EN 61326-2-3.
UL certification available.

Contact Information: Huba Control AG has branches in Switzerland, Germany, France, Netherlands, and the UK, providing contact details for each location.

Catalog excerpts

Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar-1

FOR FINE PRESSURE AND FLOW MEASUREMENT Measuring range -1 ... 1 mbar / 0 . The volume flow transmitter type 679 have Bi-direction pressure ranges. Variable measurement of pressure, flow or velocity of flow is available. Special sensors developed for each pressure range guarantee a physically precise and long term stable measurement. The diversity of versions ensure the use in many various applications in HVAC or for fine measurement in the industry or medical sector. With LCD-Display Adjustable measurement range Switchable output signals Resettable Zero Point (Reset button) Full scale adjustable Application at over and low pressure range possible Fast, easy mounting. Housing incorporates integral bracket for wall or ceiling mounting Adjustable k-Factor for flow and velocity Huba Control type 679 - Technical data subject to change - Edition 09/2016 1/5

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Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar-2

Measuring range_ Flow and velocity for following pressure ranges Operating conditions_ Tolerable overload on one side Application at over pressure range Application at under pressure range Rupture pressure Medium / ambient_ P2 = -50 mbar P2 = -100 mbar 2 x overload 1.5 x overload Materials in contact with medium Sensor Diaphragm_ Ceramic Al2p3 (96%) Silicone Polycarbonat PC Electrical overview Output 1) 2 wire 4 ... 20 mA 0 ... 5 V 3) Filter Polarity reversal protection Power supply 1) Load Current consumption 2) _Response time switchable by_off / 0.2s / 1s / 5s / 20s_ Short circuit proof and...

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Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar-3

Connection kit for vent duct (metal), 90° angled_including tube 2 m long (Fig. 1) Connection kit for vent duct (plastic), straight_including tube 2 m long (Fig. 2) DIN-rail mounting adaptor (Fig. 3)_ Calibration certificate_ 2) Accessories supplied loose 1) under pressure max. acc. order code selection table = -50 Pa/ 100 Pa Huba Control type 679 - Technical data subject to change - Edition 09/2016 3/5

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Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar-4

Dimensions in mm / Electrical connections Huba Control type 679 - Technical data subject to change - Edition 09/2016

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Volume flow transmitter 679 -1 ... 1 mbar / 0 ... 0.3 – 50 mbar-5

Huba Control SA Succursale France Rue Lavoisier Technopole Forbach-Sud 57602 Forbach Cedex Telephone +33 (0) 387 847 300 Telecopieur +33 (0) 387 847 301 [email protected] Huba Control AG Branch Office United Kingdom Unit 13 Berkshire House County Park Business Centre Shrivenham Road Swindon Wiltshire SN1 2NR Phone +44 (0) 1993 776667 Fax +44 (0) 1993 776671 [email protected] 5/5 Huba Control type 679 - Technical data subject to change - Edition 09/2016

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