Kamstrup Multical 21

Electronic ultrasonic cold and hot water meter

• Ultrasonic measurement
• Pinpoint accuracy
• LongevityVacuum sealed construction
• Environment-friendly meter

Kamstrup Multical 21 is a meter for warm and cold water metering. The ultrasonic technology guarantees a high accuracy and longevity and makes the meter suitable for apartments, residental areas and industries. Multical 21 uses Wireless M-Bus to transmit meter data and is available with or without encryption.

Product variants:

• Kamstrup Multical 21 Warm water meter, Q3 1.6, G 3/4″, 110 mm, encrypted
• Kamstrup Multical 21 Warm water meter, Q3 2.5, G 3/4″, 110 mm, encrypted
• Kamstrup Mutical 21 Warm water meter, Q3 2.5, G 1″, 105 mm, encrypted
• Kamstrup Multical 21 Warm water meter, Q3 2.5, G 1″, 130 mm, encrypted
• Kamstrup Multical 21 Warm water meter, Q3 4.0, G 1″, 130 mm, encrypted
• Kamstrup Multical 21 Cold water meter, Q3 1.6, G 3/4″, 110 mm, encrypted
• Kamstrup Multical 21 Cold water meter, Q3 2.5, G 3/4″, 110 mm, encrypted
• Kamstrup Multical 21 Cold water meter, Q3 2.5, G 1 „, 105 mm, encrypted
• Kamstrup Multical 21 Cold water meter, Q3 2.5, G 1″, 130 mm, encrypted
• Kamstrup Multical Cold water meter, Q3 4.0, G 1″, 130 mm, encrypted

MULTICAL® 21 is used for measurement of cold and hot water consumption in households and blocks of flats as well as industry. Ultrasonic flow measurement guarantees pinpoint measuring accuracy and longevity. Ultrasonic flow measurement is based on the transit time method, and all measurements, references, readings, calculations and data communication is controlled by an advanced specially designed electronic circuit. Thus the meter includes no moving parts, which makes MULTICAL® 21 resistant to wear and impurities in the water. The meter has been constructed as a hermetically vacuum sealed unit, which prevents humidity from reaching the electronics. Therefore you avoid condensation water between the glass and the large display. The meter is watertight, IP68 type tested, so suitable for installation in meter wells too. MULTICAL® 21 is easy to install in all operating environments, horizontally as well as vertically, independent of piping and installation conditions. Consumption data can be read manually direct from the display or using an optical eye. Furthermore, consumption data can be remotely read by means of Wireless M-Bus, which is built into the meter. The meter has been approved according to Drinking Water Standards in several countries. The meter case and measuring tube are made of the synthetic material PPS which is free from lead and other heavy metals. The Carbon Footprint documents the meter’s low environmental impact includ-ing recycling of materials. MULTICAL® 21 includes leak surveillance securing that waste of water is discovered very quickly. The unique combination in MULTICAL® 21 of pinpoint measuring accuracy, longevity and built-in Wireless M-bus – wireless radio communication – reduces the current operating costs of the water supply company measurably – and minimizes unexpected expenses in connection with a possible leakage.

Technical data

Electrical data

12-year battery 3.65 VDC, 2 A cells lithium
16-year battery 3.65 VDC, 1 C cell lithium
Replacement interval 12 years or 16 years at tBAT < 30°C
EMC data Fulfils MID class E1 and E2

Mechanical data

Metrological class 2
Ambient class Fulfils OIML R 49 class B and C (indoors/outdoors)
Ambient temperature 2…55°C
Protection class IP68
Medium temperature 0.1…30°C (T30); 0.1…50°C (T50); 0.1…70°C (T70) or T30/70.
Storage temp. empty sensor -25…60°C
Pressure stage PN16

Accuracy

MPE (maximum permissible error)
MPE according to OIML R 49
Meter approved 0.1…70°C
±5% in range Q1 ≤ Q < Q2
±2% in range Q2 ≤ Q ≤ Q4
At 30°C < t < 70°C
3% in range Q2 ≤ Q ≤ Q4

• Kamstrup Multical 21 Data Sheet English