Datasheet
SONOMETER
TM
2000 – Ultrasonic heat meterData sheet
DH-SMT/PL
VD.SH.A2.02 © Danfoss 11/20076
Technical data, continued
SONO 2500 CT
Flow rate
Nominal q
p
m
3
/h 10 15 25 40
Maximum q
s
m
3
/h 20 30 50 80
Minimum
1)
q
i
l/h 100 150 250 400
Starting l/h 20 30 50 80
Diameter
3)
Nominal DN mm 40 FL 40 FL 50 FL 65 FL 80
Operating pressure Maximum PN bar 25
Temperature range
Medium (horizontal)
°C
20 - 150
Medium (vertical) 20 - 120
Ambient 0 - 55
Storage -20 - +70
Medium circulation water
Humidity Storage % < 80
Pressure loss
2)
At q
p
(Q
n
) bar 0.05 0.06 0.07 0.10
Flow resistance coefficient Zeta 0,43 0,51 0,37 0,58
Flow ratio k
vs
1414.2 1936.5 2988 4000
Overall length mm 300 270 300 300
Pulse value
Output l/imp. 25 100 250 250 250
Width ms 50 100 200 200 200
Supply voltage U
N
3.6 V DC battery / 24/230 V AC
Maximum frequency Hz 128
Power consumption P
max
µW < 360
Average current l
avg
µA 100
Peak current l
peak
mA 10
Starting current l
start
mA < 15
Starting time t
start
s 0.15 - 2.0
Materials
Pipes W 2.1096.01 (G-CuSn5ZnPb)
Transducer Stainless steel W 1.4435
Flange gasket Fibre (non-asbestos)
O-ring EPDM
Heat power Nominal kW 400 600 1000 1600
Basic data
Environmental class C
Protection class IP 54
1)
The accuracy is better than 3%
2)
Acc. to EN 1434 6.17
3)
FL - flanged connection
4)
Calculated at ∆T = 40 °C and q
p
Temperature sensors (pair)
Type
Direct mounted
Type DS (EN 1434)
Pocket sensor
Type PS (EN 1434)
Element Pt 500, 2-wire (EN 60751) Pt 100/500, 2-wire (EN 60751)
Pairing °C 10, 80, 130
Medium temperature °C 0...180 0...150
Medium District heating water
Response time t 0.5 Typically 0.8 s/0.4 m/s
acc. to sensor pocket technical data
table
Pressure rating PN bar 16
acc. to sensor pocket technical data
table
Protection class IP 67 IP 65
Pipe material W 2.4816 W 1.4303
Temperature sensor pockets
Type Brass Stainless steel
Medium temperature °C 0...180
Medium District heating water
Response time t 0.5
Typically 9 s/0.4 m/s
Typically 5 s/0.4 m/s with pasta
Typically 13 s/0.4 m/s
Typically 5 s/0.4 m/s with pasta
Pressure rating PN bar 25
Material CuZn40Pb2 (Ms 58) W 1.4571
Adapter CuZn40Pb2 (Ms 58)