Kamstrup Multical 403 heat meter

The Kamstrup Multical 403 is a versatile ultrasonic heat meter with optional cooling functionality, delivering precise energy measurement in temperatures from 2°C to 130°C.

With flexible communication options including Pulse, M-Bus, and Wireless M-Bus, and power choices of battery, 24V AC, or 230V AC, it suits a wide range of applications. Key features include a programmable data logger, real-time clock backup, and IP68-rated flow sensor for durability. On-site configuration via front keys and a modular design make it easy to install and maintain.

Features & Benefits

Kamstrop Multical 403 is an ultrasonic heat meter with cooling option.
Consists of a calculator ,flow sensor and 2 temperature sensors.
Temperature range 2 to 130C.
Energy display in Kw or Mw, battery or 24v AC and 230v AC powered.
Communication by pulse, Mbus and WMbus.
MID EN 1434 approved.

Product Video

Available Models

PART NUMBER	Size	Connection Type	Min Flow qi (l/h)	Nominal flow qp (m3/h)	Max Flow qs (m3/h)	Body Length (mm)	Max Temp	MID Class	Pressure (bar)
MCAL403x1	15	Screwed	6	0.6	1.2	110	130	Class 2	25
MCAL403x3	20	Screwed	6	0.6	1.2	190	130	Class 2	25
MCAL403X4O	15	Screwed	15	1.5	3	110	130	Class 2	25
MCAL403X7O	20	Screwed	15	1.5	3	130	130	Class 2	25
MCAL403XAO	20	Screwed	25	2.5	5	130	130	Class 2	25
MCAL403XDO	25	Screwed	35	3.5	7	260	130	Class 2	25
MCAL403XFO	25	Screwed	60	6	12	260	130	Class 2	25
MCAL403XHO	40	Screwed	100	10	20	300	130	Class 2	25
MCAL403XKO	50	Flanged	150	15	30	270	130	Class 2	25
MCAL403x1C	15	Screwed	6	0.6	1.2	110	130	Class 2	25
MCAL403x3C	20	Screwed	6	0.6	1.2	190	130	Class 2	25
MCAL403X4OC	15	Screwed	15	1.5	3	110	130	Class 2	25
MCAL403X7OC	20	Screwed	15	1.5	3	130	130	Class 2	25
MCAL403XAOC	20	Screwed	25	2.5	5	130	130	Class 2	25
MCAL403XDOC	25	Screwed	35	3.5	7	260	130	Class 2	25
MCAL403XFOC	25	Screwed	60	6	12	260	130	Class 2	25
MCAL403XHOC	40	Screwed	100	10	20	270	130	Class 2	25
MCAL403XKOC	50	Flanged	150	15	30				25

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Specifications

MCAL403x1

Kam 403qp 0.6 m3/h, 1/2″ x 110 mm sensors and pockets

Size: 15

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 6

Nominal flow (QP): Yes

Max Flow (m3/h): Yes

Body Length (mm): 110

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403x3

Kam 403qp 0.6 m3/h, 3/4″ x 190 mm sensors and pockets

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 6

Nominal flow (QP): Yes

Max Flow (m3/h): Yes

Body Length (mm): 190

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403X4O

Kam 403 1/2″ Heat Meter Qp1.5 L110 Direct Sensors

Size: 15

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 15

Nominal flow (QP): 2

Max Flow (m3/h): 3

Body Length (mm): 110

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403X7O

Kam 403.3/4″ BSP Heat Meter Qp1.5 x L130

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 15

Nominal flow (QP): 2

Max Flow (m3/h): 3

Body Length (mm): 130

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XAO

Kam 403. 3/4″ BSPHeat Meter Qp 2.5m³/h x L130

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 25

Nominal flow (QP): 3

Max Flow (m3/h): 5

Body Length (mm): 130

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XDO

Kam 403. 1″ BSP Heat Meter Qp 3.5m³/h x 260 Sensors & pocket

Size: 25

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 35

Nominal flow (QP): 4

Max Flow (m3/h): 7

Body Length (mm): 260

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XFO

Kam 403 1″ BSP Heat Meter Qp 6.0m³/h x 260 Sensors & Pockets

Size: 25

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 60

Nominal flow (QP): 6

Max Flow (m3/h): 12

Body Length (mm): 260

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XHO

Kam 403.1.1/2″ BSP Heat Meter Qp 10m³/h x 300 Sensors & Pock

Size: 40

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 100

Nominal flow (QP): 10

Max Flow (m3/h): 20

Body Length (mm): 300

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XKO

Kam 403. DN50 Heat Meter Qp 15m³/h x 270 PN25 Sensors & pock

Size: 50

Connection Type: Flanged

Pressure (bar): 25

Min Flow (l/h): 150

Nominal flow (QP): 15

Max Flow (m3/h): 30

Body Length (mm): 270

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403x1C

Kam 403 Cooling Meters Q 0.6 m3/h, 1/2″ x 110 mm

Size: 15

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 6

Nominal flow (QP): Yes

Max Flow (m3/h): Yes

Body Length (mm): 110

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403x3C

Kam 403qp Cooling Meter 0.6 m3/h, 3/4″ x 190 mm

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 6

Nominal flow (QP): Yes

Max Flow (m3/h): Yes

Body Length (mm): 190

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403X4OC

Kam 403 1/2″ Cooling Meter Qp1.5 L110 Direct Sensors

Size: 15

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 15

Nominal flow (QP): 2

Max Flow (m3/h): 3

Body Length (mm): 110

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403X7OC

Kam 403.3/4″ BSP Cooling Meter Qp1.5 x L130

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 15

Nominal flow (QP): 2

Max Flow (m3/h): 3

Body Length (mm): 130

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XAOC

Kam 403. 3/4″ BSP Cooling Meter Qp 2.5m³/h x L130 Direct Sen

Size: 20

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 25

Nominal flow (QP): 3

Max Flow (m3/h): 5

Body Length (mm): 130

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XDOC

Kam 403. 1″ BSP Cooling Meter Qp 3.5m³/h Sensors & pocket

Size: 25

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 35

Nominal flow (QP): 4

Max Flow (m3/h): 7

Body Length (mm): 260

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XFOC

Kam 403 1″ BSP Cooling Meter Qp 6.0m³/h x 260 Sensors

Size: 25

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 60

Nominal flow (QP): 6

Max Flow (m3/h): 12

Body Length (mm): 260

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XHOC

Kam 403.1.1/2″ BSP Cooling Meter Qp 10m³/h x 300 Sensors KWH

Size: 40

Connection Type: Screwed

Pressure (bar): 25

Min Flow (l/h): 100

Nominal flow (QP): 10

Max Flow (m3/h): 20

Body Length (mm): 270

Max Temp: 130

Ratio: 200

MID Class: Class 2

Material: Stainless steel

Country of Origin: Denmark

Horizontal: Yes

Vertical: Yes

Interchanbale comms: Yes

Intachanable Powerv: Yes

Pulse: Yes

Mbus: Yes

Modbus: Yes

Wmbus/RF: Yes

LORA: Yes

Bacnet: Yes

4–20mA: Yes

230v: Yes

Battery: Yes

24v: Yes

MCAL403XKOC

Kam 403. DN50 COOLING Meter Qp 15m³/h PN25 Sensors & pock

Size: 50

Connection Type: Flanged

Pressure (bar): 25

Min Flow (l/h): 150

Nominal flow (QP): 15

Max Flow (m3/h): 30

Downloads

403 data sheet

Product ranges

Browse our full range of products using the links below. Most of our products are available for next day delivery when ordered before 4:30pm!

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MCAL403x1

MCAL403x3

MCAL403X4O

MCAL403X7O

MCAL403XAO

MCAL403XDO

MCAL403XFO

MCAL403XHO

MCAL403XKO

MCAL403x1C

MCAL403x3C

MCAL403X4OC

MCAL403X7OC

MCAL403XAOC

MCAL403XDOC

MCAL403XFOC

MCAL403XHOC

MCAL403XKOC

Landis & Gyr Ultraheat® T330 Heat Meter

Landis & Gyr T450 Heat Meter

Engelmann Flowstar U Ultrasonic Heat meters

Engelmann Sensostar U Ultrasonic Heat Meters

Engelmann Sensostar E Heat Meters

Connexin LoRaWAN Service

LoRaWAN Energy meter modules

Elvaco CMi-Box Mbus Metering Gateway for GPRS

VILTRUS Mbus to Modbus converter/gateway

Sontex Heat Meters 440,449,749,789

Landis & Gyr UH50 Heat Meter

LPS12 Pulse Splitter

Kamstrup Multical 403 heat meter

Features & Benefits

Product Video

Available Models

Specifications

MCAL403x1

MCAL403x3

MCAL403X4O

MCAL403X7O

MCAL403XAO

MCAL403XDO

MCAL403XFO

MCAL403XHO

MCAL403XKO

MCAL403x1C

MCAL403x3C

MCAL403X4OC

MCAL403X7OC

MCAL403XAOC

MCAL403XDOC

MCAL403XFOC

MCAL403XHOC

MCAL403XKOC

Downloads

Similar Products

Landis & Gyr Ultraheat® T330 Heat Meter

Landis & Gyr T450 Heat Meter

Engelmann Flowstar U Ultrasonic Heat meters

Engelmann Sensostar U Ultrasonic Heat Meters

Engelmann Sensostar E Heat Meters

Connexin LoRaWAN Service

LoRaWAN Energy meter modules

Elvaco CMi-Box Mbus Metering Gateway for GPRS

VILTRUS Mbus to Modbus converter/gateway

Sontex Heat Meters 440,449,749,789

Landis & Gyr UH50 Heat Meter

LPS12 Pulse Splitter

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