Kamstrup MULTICAL 403 Cooling Meter 3/4″ BSP qp 2.5 m³/hr is a chilled water cooling meter suitable for compatible cooling, metering and HIU applications. The product is listed with an integrated ultrasonic flow sensor, 1.5m signal cable, and a pair of short direct or pocket temperature sensors with 1.5m cable.
This meter has a 3/4″ BSP connection, DN20 size, qp 2.5 m³/hr nominal flow, and 130mm length. It is supplied with Pt500 temperature sensors and 1/2″ BSP pockets, making it suitable for professional installation, replacement and metering work.
The unit also supports output options including Pulse, M-Bus, Wireless M-Bus, Analogue, BACnet and Modbus RTU, depending on configuration. Power options include replaceable lithium battery power, with 230VAC or 24VAC optional versions.
Threaded meters are supplied with unions / tails and are normally installed on the return / outlet pipe, with flow / inlet configuration adjustable onsite.
Key Features
- Kamstrup MULTICAL 403 cooling meter
- 3/4″ BSP connection
- DN20
- qp 2.5 m³/hr nominal flow
- 130mm length
- Integrated ultrasonic flow sensor
- Includes Pt500 temperature sensors
- Includes 1/2″ BSP pockets
- 1.5m signal cable and 1.5m temperature sensor cables
- Battery, 230VAC or 24VAC power options depending on configuration
- Output options available: Pulse, M-Bus, Wireless M-Bus, Analogue, BACnet and Modbus RTU
Suitable For
- Cooling meter replacement
- HIU metering applications
- Chilled water systems
- Metering system servicing
- Energy monitoring and billing applications



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