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Brand: Kamstrup
Kamstrup MULTICAL 803 Heat and Cooling Energy Calculator
Description
An energy calculator for district cooling and plant-room metering
The Kamstrup MULTICAL 803 is a robust, all-round calculator for energy measurement in heating and cooling circuits. According to the manufacturer it can serve as a heat meter, a cooling meter or a bifunctional heat/cooling meter together with one or two flow sensors and one, two, three or four temperature sensors, in open and closed systems. Under EN 1434 and the MID it is a “calculator” with a separate type approval, so the flow sensors and temperature sensors are ordered to match the application. Its data logger is fully programmable and includes minute loggers, which suits billing, performance monitoring and commissioning checks on larger chilled-water and hot-water systems.
Technical specifications
| Parameter | Specification |
|---|---|
| Meter function | Heat, cooling or bifunctional heat/cooling meter; mixed-fluid variant (EN 1434, no MID approval) |
| Approvals (heat/cooling) | DK-0200-MI004-042 (heat); TS 27.02 013 (cooling); MID 2014/32/EU, EN 1434; temperature range 2 to 180 °C, differential 3 to 178 K |
| Mixed-fluid range | -40 to 140 °C, differential 3 to 180 K |
| Standards / classes | EN 1434:2015+A1:2018; environmental classes A and C; MID mechanical M1 and M2, electromagnetic E1 and E2 |
| Temperature inputs | Pt100 or Pt500 (EN 60751), 2-wire or 4-wire; 0.00 to 185.00 °C (803-A); automatic Pt100/Pt500 detection |
| Flow inputs | 2 inputs (V1, V2); pulse value 0.001 to 300 pulses/litre; qp 0.6 to 15,000 m³/h; ULTRAFLOW auto detect with CCC code 8xx |
| Accuracy (typical) | Calculator Ec = ±(0.15 + 2/ΔΘ) %; sensor pair Et = ±(0.4 + 4/ΔΘ) %; ULTRAFLOW Ef = ±(1 + 0.01 qp/q) % |
| Display | LCD, 7 or 8 digits, 10 mm digit height, backlit; units MWh, kWh, GJ, Gcal |
| Data logger | Programmable, 1 minute to 1 year; standard profile 20 years, 36 months, 460 days, 72 hours; 280 info codes |
| Clock accuracy | Under 15 minutes per year without adjustment |
| Power supply | 230 VAC +15/-30 % or 24 VAC ±50 % / 24 VDC +75/-25 %, 50/60 Hz; backup battery 3.6 VDC, 2 x A lithium, 6 years |
| Power consumption | Below 1 W (types A and b); below 7 W (types C and d) |
| Protection / weight | IP65; 1150 g including backup battery |
| Ambient temperature | 5 to 55 °C, non-condensing, indoor |
| Medium temperature (ULTRAFLOW) | 2 to 130 °C |
| Module slots | 4 communication module slots (M1 to M4) |
Type number and configuration
The type number written on the meter front has the form 803-X-X-XX-X-XX and defines the calculator type, meter type, country code, flow sensor connection, temperature sensor set and supply modules. Meter type digits include 2 (heat, MID), 3 and 6 (heat/cooling), 4 (heat, national approval), 5 (cooling), and 7 to 9 for hot volume, cold volume and energy meters. Flow sensor connection codes include 1 and 2 (delivered with one or two ULTRAFLOW) and 7 and 8 (prepared for one or two). Supply modules range from one 230 VAC or 24 VAC/VDC module, powering two communication modules, to two modules powering four. The configuration number then sets flow sensor position (inlet or outlet), energy unit (GJ, kWh, MWh or Gcal) and display resolution, for example 807, 808 or 818 for ULTRAFLOW auto detect.
Communication and installation
Module options listed by Kamstrup include pulse inputs and outputs, wired M-Bus, linkIQ/wM-Bus, low power and high power radio, NB-IoT, LON TP/FT-10, BACnet MS/TP and IP, Modbus RTU and TCP/IP, analog inputs and outputs, a PQT controller and 2G/4G network. Slot availability differs by module, so state the reading system you need. The calculator top can be separated from the connection base with a 4 mm Allen wrench once the installation seals are broken. At medium temperatures below ambient or above 90 °C in the flow sensor, wall mounting of the calculator is recommended. A related Kamstrup calculator on this site is the Kamstrup MULTICAL 603, and browse more meters under Flowmeters.
How the Kamstrup MULTICAL 803 works
The calculator reads the flow signal and the temperature signals. It works out the temperature difference between supply and return. It multiplies this by the flow and the heat properties of the water. The result is shown and logged as energy.
Where the MULTICAL 803 is used
- District heating metering
- District cooling metering
- Plant-room energy metering
- Chilled-water systems
- Hot-water systems
Selection checklist for the MULTICAL 803
- Heat, cooling or bifunctional use
- Number of flow sensors
- Number of temperature sensors
- Flow range
- Supply voltage
- Communication module
- Mixed-fluid need
- Logger profile
Installation, commissioning and maintenance notes for the MULTICAL 803
Mount the calculator indoors on a wall or panel. Connect the flow sensors and the temperature sensors. Set the flow input type and the pulse value. Check the readings against the plant at commissioning.
Requesting a quotation for the Kamstrup MULTICAL 803
Please send the pipe size, the flow range and the sensors needed. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.
MULTICAL 803 device type
It is an energy calculator.
MULTICAL 803 functions
It can be a heat, cooling or bifunctional meter.
MULTICAL 803 flow sensors
It works with one or two flow sensors.
MULTICAL 803 temperature sensors
It works with one to four temperature sensors.
MULTICAL 803 systems
It suits open and closed systems.
MULTICAL 803 mixed fluid
A mixed-fluid variant is available.
MULTICAL 803 temperature range
The standard range is 2 to 180 degrees C.
MULTICAL 803 temperature inputs
The inputs take Pt100 or Pt500 sensors.
MULTICAL 803 flow inputs
It has two flow inputs.
MULTICAL 803 pulse value
The pulse value runs from 0.001 to 300 pulses per litre.
MULTICAL 803 ULTRAFLOW
It detects ULTRAFLOW sensors automatically.
MULTICAL 803 display
It has a backlit LCD with 7 or 8 digits.
MULTICAL 803 units
The units are MWh, kWh, GJ and Gcal.
MULTICAL 803 data logger
The data logger is fully programmable.
MULTICAL 803 minute logger
It includes minute loggers.
MULTICAL 803 logger profile
The standard profile covers 20 years of data.
MULTICAL 803 info codes
It has 280 info codes.
MULTICAL 803 supply
Supply is 230 VAC or 24 VAC or VDC.
MULTICAL 803 backup battery
The backup battery is a 3.6 VDC lithium cell.
MULTICAL 803 power use
Power use is below 1 W on the battery and low-power types.
MULTICAL 803 enclosure
The enclosure rating is IP65.
MULTICAL 803 weight
It weighs 1150 g including the backup battery.
MULTICAL 803 ambient range
The ambient range is 5 to 55 degrees C, non-condensing and indoors.
Meter records for the MULTICAL 803
Record the sensor serial numbers, the pulse values and the commissioning date.
Choosing the right MULTICAL 803 sensors
Choose the flow and temperature sensors to match the application.
Documents and quotation
The Kamstrup MULTICAL 803 data sheet (FILE100000671_B_EN_03.2024) is attached to this page. Before ordering, confirm heat, cooling or combined duty, flow sensor size and qp, temperature sensor type and cable length, supply voltage, communication modules, and the country code Kamstrup assigns on order. Send these details with your inquiry and we will prepare a quotation against the manufacturer documentation.
Datasheets & Documents
- Datasheet Kamstrup MULTICAL 803 Data Sheet (FILE100000671_B_EN_03.2024) Download
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About brand
Ultrasonic measurement with no moving parts is the idea behind the flowIQ water meters and ultrasonic energy meters of Kamstrup. The Danish company, founded in 1946 in Skanderborg, makes meters for water, heat and cooling that are read remotely. Seven Star LLC lists the Kamstrup flowIQ water meters and the MULTICAL 403 energy meter, and supplies Kamstrup meters to utilities, district cooling operators and building owners in Oman and the GCC.
Kamstrup meter families on this page
The flowIQ 2200 is an ultrasonic smart water meter for residential, multi-unit and commercial connections. The flowIQ 4200 is the bulk water meter, made in five sizes from DN125 to DN300. The MULTICAL 403 is an ultrasonic thermal energy meter that can be supplied as a heat meter, a cooling meter or a combined heat and cooling meter, with a matched pair of temperature sensors and communication modules.
Ordering Kamstrup meters: what we need
Send the type number from the meter front if you are matching installed units. Otherwise give nominal flow and pipe size, connection type and meter length, heat or cooling service, where the flow sensor sits (supply or return pipe), the temperature sensor type and cable length, and the communication you need, for example wired M-Bus or a radio option.
Browse Kamstrup products by category: Flowmeters.
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Frequently Asked Questions
What is the MULTICAL 803 used for?
It is a calculator for energy measurement in thermal installations where water carries the energy. It can be a heat meter, a cooling meter or a bifunctional heat/cooling meter with one or two flow sensors and one to four temperature sensors, and the datasheet also lists leakage monitoring, power, flow and temperature limiting with valve control.
Which flow sensors can be connected?
The two flow sensor inputs take ULTRAFLOW electronic sensors as well as mechanical sensors with reed or FET switches, and 24 V active pulses with a connection PCB. The pulse value is configurable from 0.001 to 300 pulses per litre and nominal flow sizes from 0.6 to 15,000 m3/h can be configured.
How is it powered and what happens in a power failure?
It is mains supplied from 230 VAC or 24 VAC/VDC, depending on the supply module in the type number. A built-in 3.6 V lithium backup battery keeps energy measurement running for 6 years if the supply fails.
What communication modules are available?
There are four module slots. The datasheet lists pulse, wired M-Bus, linkIQ/wM-Bus, radio, NB-IoT, LON, BACnet MS/TP and IP, Modbus RTU and TCP/IP, analog in/out, PQT controller and 2G/4G modules, with some restricted to certain slots.
Is Seven Star LLC a distributor of Kamstrup?
No. Seven Star LLC is an independent industrial supplier in Muscat and is not a distributor or agent of Kamstrup. We check the type number and configuration against Kamstrup documentation before quoting.
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