Axonic

Static flow meters for thermal energy C&I applications

Axonic is a static ultrasonic flow meter perfectly adapted to the needs of district heating and cooling applications. With our proven know-how of static metering technology it has been developed for heating and cooling applications where water is used as an energy transfer medium.

Axonic is equipped with an universal interface which allows it to be easily combined with Itron calculators such as CF51, CF55 or CF800. It is powered by the connected calculators and therefore it doesn’t require its own source of electrical power (e.g. battery).

Revenue protection

Axonic helps to protect the revenue of district heating companies by featuring extraordinary metrological performance, such as a high accuracy according to MID class 2 , long term stability and an outstanding dynamic range up to R400. AXONIC is still measuring also when exceeding qmax and helps reducing billing losses.

In addition, the fully concentric flow channel design creates a flow profile that is insensitive against up, and downstream flow disturbances and therefore reliable in any type of installation, even if space for flow meter installation is very limited. In combination with Itron calculators it features intelligent diagnostic functions to control and optimize the entire thermal energy system.

Advanced functions

In the field the Axonic flow meter permanently monitors the operating conditions. In case of abnormal conditions, such as back-flow or air in the pipe, the meter sends a dedicated warning to the connected Itron calculator that can be transmitted via advanced reading systems in order to prompt a quick response by the system operator.

Features and Benefits

High accuracy and repeatability
Outstanding dynamic range
Still measurement also when exceeding qmax
Robust and reliable design
Ease of installation thanks to an innovative mobile flange design
Insensitive to flow disturbances
Optional 2nd pulse output
Self diagnostic functions
High pressure versions (PN40)
Various choice of lengths
Insulation compliant

Applications

Heating
Cooling

Standards

MID approval according to 2014/32/EU
Cooling approval according PTB 7.2
Class 2 acc. to EN1434
Environmental class EN1434 class C,
MID class E2 + M2
IP 68

Datasheet

User Guide

Declaration of conformity

Specifications

Type		DN 65 /qp 25	DN 80 /qp 40	DN 100 /qp 60	DN 125 /qp 100	DN 150 /qp 150
Maximum overflow	qss (m³/h)	55	88	132	220	330
Maximum flow	qs (m³/h)	50	80	120	200	300
Nominal flow	qp (m³/h)	25	40	60	100	150
Minimum flow (R250)	qi (l/h)	100	160	240	400	600
Cut off flow	qc (l/h)	40	80	100	200	300
Dynamic range (approval)		400H / 250V	250 H,V	250 H,V	250 H,V	250 H, 100 V
Accuracy class		EN1434 class C2	EN1434 class C2	EN1434 class C2	EN1434 class C2	EN1434 class C2
Head loss qp	bar	≤ 0,10	≤ 0,17	≤ 0,13	≤ 0,22	≤ 0,15
Flow profile sensitivity class		U0D0	U0D0	U0D0	U0D0	U0D0
Water temperature (heat version)	°C	1… 130°C/150°C (permanent / accidental)	1… 130°C/150°C (permanent / accidental)	1… 130°C/150°C (permanent / accidental)	1… 130°C/150°C (permanent / accidental)	1… 130°C/150°C (permanent / accidental)
Water temperature (cooling version)	°C	1… 50°C	1… 50°C	1… 50°C	1… 50°C	1… 50°C
Ambient temperature	°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C
Storage / transport temperature	°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C	-25°C … +60°C

Pulse Output and Power Supply Characteristics

Pulse output (pulse A and B)
Type	open collector (drain)
Polarity	non-reversible (see manual)
Pulse-length	≥ 5ms, optional up to 500ms (value indicated in type plate)
Max. input voltage	30V DC
Max. input current	27mAv
Drop off Voltage (ON)	<0,3 at 0,1 mA / < 2V at 27mA
Resistance (OFF state)	6 MΩ
Max. output frequency	128 Hz
Pulse weight options	8 p/L up to 2500 L/p (value indicated on type plate)

Dimensions

Type			DN 65 qp25 PN16	DN 65 qp25 PN25	DN 65 qp25 PN40	DN80 qp 40 PN16	DN80 qp 40 PN25	DN80 qp 40 PN40	DN100 qp 60 PN16	DN100 qp 60 PN25	DN100 qp 60 PN40	DN125 qp 100 PN16	DN150 qp 150 PN16	DN150 qp 150 PN25	DN150 qp 150 PN25
Body length (available versions)	L1	mm	200 300	300	300	200 225 300 350	300	350	250 360 400	360	400	250	300 500	500	300
Electronic	L2 B	mm mm	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119	124 119
Height	A1 A2	mm mm	204 93	204 93	204 93	209 100	209 100	209 100	219 111	219 118	219 112	219 94	244 143	244 150	244 144
Bolt circle diameter	K	mm	145	145	145	160	160	160	180	190	190	210	240	250	250
Bolt holes diameter	L	mm	19	19	18	19	19	18	20	23	22	20	24	28	26
Number of holes			4	8	8	8	8	8	8	8	8	8	8	8	8
Flange dimensions*	D D1 F1 F2	mm mm mm mm	185 108 – –	185 108 – –	188 109 178 175	200 128 – –	200 128 – –	203 120 194 190	220 156 – –	235 156 – –	238 149 228 224	250 184 – –	285 216 – –	300 216 – –	300 203 288 288
Weight (length)		kg (mm)	8,0 (200) 9,0 (300)	9,0 (300)	10,5 (300)	9,3 (200) 9,6 (225) 10,4 (300) 10,9 (350)	10,4 (300)	14,0 (350)	13,0 (250) 14,0 (360) 15,0 (400)	16,0 (360)	20,0 (400)	11,77 (250)	24,0 (300) 28,0 (500)	31,0 (500)	32,0 (300)