Data sheet Ultrasonic flow sensor (qp 1.5...100 m³/h) Static sensor, no moving parts and no wear Excellent water resistance (IP68) Allows insulation and submersion Enables direct mounting of a temperature sensor (qp 1.5...10 m³/h) • Exceptionally accurate • Large dynamic range • Small pressure loss

Contents Application 2 Approvals 3 Technical data 4 Flow data 5 Materials 5 Type summary 6 Dimensional sketches 7 Pressure loss 12 Installation 13 Mounting of the electronics box of ULTRAFLOW® 44 14 Couplings and direct short sensor fitted in ULTRAFLOW® 44 16 Electrical connection 17 Example of connecting ULTRAFLOW® 44 and MULTICAL® 17 Order specification 18 Accessories 19 Application ULTRAFLOW® 44 is a static flow sensor based on the ultrasonic measuring principle. It is used as a volume flow rate sensor primarily for thermal energy meters such as MULTICAL® 603 and MULTICAL® 803. ULTRAFLOW®...

Type approval ULTRAFLOW® 44 is approved as a heat meter in accordance with MID-2014/32/EU: EU-Type Examination Certificate MID certificate acc. to module D M20 0200 ULTRAFLOW® 44 is approved as a cooling meter in accordance with DK-BEK 1178 – 06/11/2014: System designation Verification Please contact Kamstrup A/S for further information relating to type approval and verification. CE marking ULTRAFLOW® 44 is marked in accordance with: – EMC directive 2014/30/EU – LV directive 2014/35/EU (together with Pulse Transmitter or Pulse Divider) – PE directive 2014/68/EU (DN50...DN125 category I) MID designation...

Technical data Mechanical data Metrological class Environmental class Complies with EN 1434 class C Ambient temperature 5...55 °C, condensing and non-condensing, closed location (indoor installation) Protection class – Flow sensor – Pulse Transmitter – Cable Extender Box Medium in flow sensor Water (recommended water quality as in CEN TR 16911 and AGFW FW510) Storage temperature (empty sensor) Pressure stage * If the temperature of the medium exceeds 90 °C, a flanged meter should be used. At a medium temperature above 90 °C or at a medium temperature below the ambient temperature, calculator...

Flow data Meter factor * Dynamic range qp:qi * The meter factor appears from the type label. ** Saturation flow 125 Hz. Max pulse frequency is maintained at higher flow rates. Wetted parts ULTRAFLOW® 44, qp 1.5 and 2.5 m³/h Housing, thread Transducers O-ring Reflectors Measuring tube ULTRAFLOW® 44, qp 3.5 to 100 m³/h Housing, thread Housing, flange Transducers O-ring Reflectors Measuring tube DZR brass (dezincification resistant brass), CW602N Stainless steel, W.no. 1.4404 Ethylene-propylene (EPDM) Thermoplastic, 30 % glass fibre-reinforced polyethersulfone (PESU 30 % GF) and stainless steel,...

Materials Electronics housing qp 1.5...100 m³/h PCB box Thermoplastic, inside - polyolefin, outside - polyamide qp 1.5 and 2.5 m³/h Base (flow sensor) Top cover (flow sensor) Thermoplastic, 30 % glass fibre-reinforced polyethersulfone (PESU 30 % GF) Thermoplastic, 10 % glass fibre-reinforced polycarbonate (PC 10 % GF) qp ≥ 3.5 m³/h Base (flow sensor) Cover (flow sensor) Thermoplastic, 10 % glass fibre-reinforced polycarbonate (PC 10 % GF) Thermoplastic, 10 % glass fibre-reinforced polycarbonate (PC 10 % GF) Cables Coaxial cable Signal cable Copper cable with silicon jacket and inner fluoropolymer...

Dimensional sketches All ULTRAFLOW® 44 flow sensors include a separate electronics box, which contains the PCB. This electronics box is connected to the plastic casing on the respective meter housing with a coaxial cable with a length of l < 1.2 m. The plastic casing on the meter housing contains the transducers of the flow sensor. All measurements are in mm, unless otherwise stated. * Electronics box together with coaxial cable and 2.5 m signal cable. * Including the electronics box and 2.5 m signal cable. Kamstrup A/S • 58101751_D1_GB_04.

Dimensional sketches * Including the electronics box and 10 m signal cable.

Dimensional sketches MC 403 - Flowpart - Flanged ULTRAFLOW® 44, DN25, DN40 and DN50 Flange facing type B, raised face according to EN 1092-1, PN25 Nom. diameter Approx weight * * Including the electronics box and 10 m signal cable.

Dimensional sketches Flange facing type B, raised face according to EN 1092-1, PN25 Nom. diameter Approx weight *

Dimensional sketches Note: To achieve the easiest possible adjustment (e.g. during reverification), we recommend to order ULTRAFLOW® 44 together with MULTICAL® 603 or MULTICAL® 803 whereby the flow sensor and the calculator will be delivered with identical serial number. Adjustment of separately delivered ULTRAFLOW® 44 requires individual encryption keys.

Pressure loss

Orientation of Kamstrup flow sensors (mounted separately) Kamstrup flow sensors can be installed horizontally, -vertically or at an angle. For vertical mounting, Kamstrup flow sensors ULTRAFLOW® 44 Orientation can be turned ±360° around the pipe axis. IMPORTANT! The plastic box on the flow sensor must be turned to the side (when installed horizontally). Recommendations for cooling and combined heat/cooling applications Threaded flow sensors with qp ≤ 2.5 m³/h Threaded flow sensors with qp ≥ 3.5 m³/h and flanged flow sensors ULTRAFLOW 44 - Orientation Recommendations for heat applications Kamstrup...

Mounting of the ULTRAFLOW® 44 electronics box UF44 - Cable binding Freely hanging ULTRAFLOW® 44 - Installation Horizontally mounted with cable strips in humid environments UF 44 - Cable binding - NOT Allowed UF 44 - Cable binding - NOT Allow Must NOT be mounted Kamstrup Drawing No.: S1741_1 on pipes on flow sensor or 15. October 2019

Straight inlet ULTRAFLOW® requires neither straight inlet nor outlet to meet the Measuring Instruments Directive (MID) 2014/32/EU, OIML R75:2002 and EN 1434:2015. A straight inlet section is only necessary in case of heavy flow disturbances before the meter. We recommend to follow the guidelines in CEN CR 13582. Operating pressure In order to prevent cavitation, the static pressure at the flow sensor outlet of ULTRAFLOW® 44 must be min. 1.5 bar (1.0 bar for ULTRAFLOW® 44 type 65-4-XXHX-XXX) at qp and min. 2.5 bar (2.0 bar for ULTRAFLOW® 44 type 65-4-XXHX-XXX) at qs. This applies to temperatures...