Kamstrup Multical 403 Heat Meter – Ultrasonic Heat Meters MID Class 2
MID Class 2 Heat Meter
The Kampstrup Multical 403 can be designated as a hybrid instrument and is MID approved Class 2.
The Multical 403 can be turned during installation, in very compact systems too, enabling optimal reading of the display at all times.
With a temperature measuring range of up to 130°C, the robust measuring flow sensor offers extremely long product longevity as it is designed with Kamstrup unique ultrasound technique.
The volume is measured using bi-directional ultrasonic technique based on the transit time method and the accumulated heat energy and/or cooling energy can be displayed in kWh, MWh or GJ, all in the form of seven significant digits and measuring unit.
Kamstrup Multical 403
Ultrasonic Heat Meter
The Kamstrup Multical 403 is based on innovative ultrasonic technology, a deep understanding of the challenges faced by utilities and experience gained from many years designing and manufacturing top of the range heat and cooling meters.
The Multical 403 is suitable for use within many applications including houses and apartments to shopping centres and office buildings as the meter has a selection range from qp 0.6 to qp 15 m³/h.
The compact design means that the meter can easily fit all types of installations while still maintaining an optimal display angle even in narrow environments.
The inlet/outlet position and the heat meter can be configured on site meaning that one meter can be used for many installations resulting in low stock holding requirements and easier forward planning.
The low pressure loss, which is below 0.15 bar, means there is a lower need for pumping capacity which reduces the amount of electrical energy to the circulation pumps in the utility.
Kamstrup Multical 403 Heat Meter
MID Approved CLASS 2
The Measuring Instruments Directive (MID) is a European directive (2004/22/EC) that harmonises the requirements of 10 different measuring instrument types, including gas meters and heat meters. MID approved heat meters will have passed specific conformity assessment procedures and have MID markings which allow the instruments to be used in any EU member state.
Heat meters to be used for the Non-Domestic RHI in the UK must also comply with MID Class 2.
Kamstrup Multical 403 Heat Meter
Calculator Functions – Energy calculation by the heat meter is carried out on the basis of the formula stated in EN 1434-1:2007. This uses the international temperature scale issued in 1990 (ITS-90) and the pressure definition of 16 bar.
Kamstrup Multical 403 operates with many energy formulas, E1, E3, E8, E9, A1 and A2. All energy types are data logged and can be displayed according to configuration. This enables the Multical 403 to calculate heat and cooling energy in most applications.
Communication – The Kamstrup Multical 403 is available with communication modules for Wireless M-Bus, M-Bus and RS232.
The modules are available with either pulse inputs or pulse outputs. In addition to reading current values, the programmable data loggers of Multical 403 can be read via M-Bus
The M-Bus module is powered through the M-Bus network and is thus independent of the meter’s internal supply. Two-way communication between M-Bus and energy meter is carried out via a digital isolator providing galvanic separation between M-Bus and meter
Mechanical Data –
Environmental class – Fulfils EN 1434 class A and MID class E1
|Calculator||IP65||5…55 °C||Non-condensing||Indoors (closed position)|
|Flow sensor and temp. sensor pair||IP68||Condensing|
|Kamstrup Heat meters 402-V/W||Kamstrup Cooling meters 402-T||Kamstrup Heat/cooling meters 402-T||Medium in sensor||Storage temperature||Pressure stage||Weight|
|2…130 °C||2…130 °C||2…130 °C||Water (district heating water as described in CEN TR 16911 and AGFW FW510)||-25…60 °C||PN16 and PN25||From 0.9 to 8.6 kgs depending on flow sensor size|
Heat Meter Construction
- Flow sensor case – Hot dezincification proof brass (CW 602N)
- Case, flange – Stainless steel, material no. 1.4308
- O-rings – EPDM
- Measuring tube – Thermoplastic, PES 30% GF
- Reflectors – Thermoplastic, PES 30 % GF and stainless steel
- Flow sensor cover & wall bracket – Thermoplastic, PC 10% GF with TPE (thermoplastic elastomer)
- Cable – Silicone cable with inner Teflon insulation