Datasheet
Data sheet
DH-SMT/PL
VD.SH.A2.02 © Danfoss 11/2007 5
SONOMETER
TM
2000 – Ultrasonic heat meter
Technical data
INFOCAL 6
Basic data
Enviro. class C / A
Protect. class IP 54
Display indication
Display LCD, 7 digit
Units MWh - kWh - GJ - Gcal - MBtu - gal
Total values 9 999 999 - 999 999.9 - 99 999.99 - 9 999.999
Values displayed Power - energy - flow rate - temperature
Temperature
Ambient
°C
0 - 55
Storage -25 - +70
Input
Temp. sensors Type
Pt 100 / Pt 500 with 2-wire leads
< 10 m
Sensor current mA
Pt 100 peak < 8; rms < 0.015
Pt 500 peak < 2; rms < 0.012
Measuring cycle T s
Mains unit supply: 2
Battery: 16
Max. temp. difference ∆θ
max
K 177
Min. temp. difference ∆θ
min
K 3
Starting temp. difference ∆θ K 0.1
Absolute temp. measuring range θ °C -9.9...189.9
Supply voltage Operating voltage U
N
VDC 3.0 / 3.6 (Lithium battery)
SONO 1500 CT
Flow rate
Nominal q
p
m
3
/h 0.6 1 / 1.5 2.5 3.5 6
Maximum q
s
m
3
/h 1.2 2 / 3 5 7 12
Minimum q
i
l/h 6 10 / 6 10 35 24
Starting l/h 1 2.5 4 12 12
Diameter
3)
Nominal DN mm 15 20 FL 20 15 20 FL 20 20 FL 20 25 FL 25 FL32 25 FL 25 FL 32
Operating
pressure
Maximum PN bar 16/25 25 16/25 25 16/25 25 25 25
Temperature
range
Flow sensor °C
battery supply: 5
- 90
external supply: 5 - 130
battery supply: 5 - 90
external supply: 5 - 150
Medium circulation water (pH: 7 - 10)
Pressure loss At q
p
Δp mbar 95 85 42 / 95 36 / 75 100 44 128
Zeta 21.00 59.37 3.34 / 3.36 9.05 / 8.38 4.02 2.21 5.92 2.18 5.86
Flow ratio k
vs
61.56 65.08 154.30 / 153.90 166.67 / 173.21 250.00 527.64 530.33
Overall length mm 110 130 190 110 130 190
130
190 260 260
Pulse value
Volume l/imp. 1...5000
Test
1)
ml/imp. 5 10 20 20 50
Supply
voltage
Operating U
N
battery supply: 3.0 VDC
external supply: 3.0...5.5 VDC
2)
Basic data
Enviro. class C
Protect. class IP 54 (heating) / IP 64 (cooling)
Applicable for direct mounting temp.
sensor, Pt100 / 500
yes no
1)
The test impulse depends on digits places of indicator volumes.
2)
For medium temperatures above 90 °C, the flow sensor must be equipped with an external supply.
3)
FL - flanged connection
Measuring accuracy to EN 1434 Class 2 for SONO 1500 CT and SONO 2500 CT