Kamstrup MULTICAL® 403 Compact Ultrasonic Heat & Cooling Meter

Kam 403. 1" BSP Heat Meter Qp 3.5m³/h x 260 Sensors & pocket / Standard UK Spec
£456.66

Kamstrup MULTICAL® 403 Compact Ultrasonic Heat & Cooling Meter

£456.66
Download Technical Datasheet (PDF)
UK Mainland Trade Carriage:
Parcels ≤ 20kg: £15.00
|
Heavy Pallet > 20kg: £65.00
(Calculated by total weight at checkout • ex-VAT)

The Kamstrup MULTICAL® 403 Compact Ultrasonic Heat & Cooling Meter is an industry-leading, static ultrasonic thermal energy meter designed for precision measurement in district heating schemes, commercial sub-metering, and residential Heat Interface Units (HIUs). Featuring zero mechanical moving parts, the MULTICAL® 403 offers ultra-low hydraulic pressure loss, outstanding dynamic rangeability, and long-term calibration stability over an expected 16-year battery life.

Key Engineering Highlights:
  • MID Class 2 Certified (EN 1434): Fully approved for fiscal heat and cooling metering across domestic, commercial, and light-industrial installations.
  • Ultrasonic Transit-Time Accuracy: Static acoustic transit-time measurement ensures wear-free operation unaffected by magnetite, scale, or particulates.
  • Flexible On-Site Reconfiguration: Flow sensor position (flow or return), energy units (kWh/MWh/GJ), and pulse values can be reconfigured on site via front optical keys before commissioning.
  • Modular Plug-and-Play AMR: Supports field-retrofittable communication modules including Wired M-Bus, Wireless M-Bus (OMS Mode C1/T1), Modbus RTU, and dual pulse inputs/outputs.
  • Extreme Dynamic Range: Turn-down ratio up to 1:250 ensures sensitive start-up flow capture down to fractional flow rates (e.g., bypass trickle).

Technical Specifications

Measurement Technology Bidirectional Ultrasonic Transit-Time (Transit Time Difference Method)
Metrology & Approvals MID (2014/32/EU) Class 2, BS EN 1434, PTB Approved
Sizes & Flow Capacities DN15 to DN50 | Qp 0.6 m³/h to 15.0 m³/h (Threaded BSP and Flanged PN25)
Temperature Range Medium: 2°C to 130°C | Differential: ?T 3 K to 90 K
Pressure Rating PN16 (Threaded brass) / PN25 (Flanged steel/brass bodies)
Temperature Sensors Paired Pt500 platinum resistance sensors (Direct short or pocket mounted, 1.5m/3.0m cable)
Power Supply Options Internal D-cell 3.65V Lithium Battery (16-year life) or 24V AC / 230V AC Mains Module
Environmental & Enclosure Flow Sensor: IP68 (Hermetically sealed submersible) | Calculator: IP54 / IP65

Standards & Building Compliance

  • Mandatory compliance with The Heat Network (Metering and Billing) Regulations 2014 (as amended 2020)
  • Approved under BS EN 1434 for Class 2 accuracy across heating and cooling duties
  • Complies with CIBSE CP1 (2020) Heat Networks: Code of Practice for the UK and CIBSE TM39
  • Supports Open Metering System (OMS) protocols for interoperable AMR/AMI smart billing networks

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