MADDALENA MJ ONE Protected Rollers MULTI-JET METER

MADDALENA MJ ONE Protected Rollers MULTI-JET METER

MJ ONE is the wet-dial multi-jet meter designed to ensure reliability, readability and consistent performance over time. The protected and sealed roller system prevents the formation of condensation, air bubbles and ice, keeping the reading clear even under the most critical environmental conditions. The mechanical transmission also ensures resistance to external magnetic fields. The new component structure improves robustness, register stability and assembly quality. MJ ONE is pulse-output ready as standard and meets the requirements of utilities and outdoor installations.

MJ ONE

PROTECTED ROLLERS MULTI-JET METER

• Wet-dial multi-jet meter for cold water
• Protected and sealed roller system against
condensation, air bubbles and freezing
• High readability and long-term stability
• Ideal for utilities and outdoor installations
• MID certified: R max 200
• DN: 15÷50
• Mechanical transmission unaffected by external magnetic fields
• Reinforced cover with secure closure and sensor-ready design
• Pulse-output ready as standard

TYPICAL ERROR CURVE

HEAD LOSS DIAGRAM

METROLOGICAL PERFORMANCE

Size mm 15 20 25
in ½ ¾ 1
Module B no. TCM 142/08-4604
Module D no. 0119-SJ-A010-08
Q₃/Q₁ = R
Referred to installation position
H↑ ≤ 200*
MID standard performance *
Q₃ m³/h 2,5 4 6,3
Q₄ m³/h 3,13 5 7,88
R 160
Q₁ l/h 15,63 25 39,38
Q₂ l/h 25,01 40 63,01

* Other values of R available upon request.

TECHNICAL DATA

Maximum permissible error
between Q₁ and Q₂ (excluded)
+/- 5%
Maximum permissible error
between Q₂ (included) and Q₄
+/- 2% with water temperature ≤ 30°C
+/- 3% with water temperature > 30°C
Temperature class T30,T50
Flow profile sensitivity classes U0 – D0
Starting flow rate l/h 4-5 7-9 16-18
Head loss ΔP63
Nominal pressure bar 16
Maximum reading m³ 99.999
Minimum reading l 0,05
Indicative weight kg 1,45 1,61 2,3

METROLOGICAL PERFORMANCE

Size mm 32 40 50
in 1 ¼ 1 ½ 2
Module B no. TCM 142/08-4604
Module D no. 0119-SJ-A010-08
Q₃/Q₁ = R
Referred to installation position
H↑ ≤ 200
MID standard performance **
Q₃ m³/h 10,0 16,0 25,0
Q₄ m³/h 12,50 20,0 31,25
R 160
Q₁ l/h 62,50 100 156,25
Q₂ l/h 100 160 250

** Other values of R available upon request.

TECHNICAL DATA

Maximum permissible error
between Q₁ and Q₂ (excluded)
+/- 5%
Maximum permissible error
between Q₂ (included) and Q₄
+/- 2% with water temperature ≤ 30°C
+/- 3% with water temperature > 30°C
Temperature class T50
Flow profile sensitivity classes U0 – D0
Starting flow rate l/h 22-24 28-30
Head loss ΔP63
Nominal pressure bar 16
Maximum reading m³ 99.999 999.999
Minimum reading l 0,05
Indicative weight kg 2,4 7,7 7,6

TECHNICAL DATA

Size mm 15 20 25
in ½ ¾ 1
Thread in G ¾ B G 1 B G 1 ¼ B
L mm 110/130/145/165/170/190 160/190 260
H mm 115 117 125
h mm 36,5 36,5 43
B mm 97
Size mm 32 40 50
in 1 ¼ 1 ½ 2
Thread in G 1 ½ B G 2 B G 2 ½ B
L mm 260 300 270/300
H mm 125 143 175
h mm 43 46 55
B mm 97 130 154

COMMUNICATION MODULES