21. Technical data
Specifications
Nominal flow rate q
m /h
p
Minimum flow rate q
i
Accuracy class
Dynamic ratio q
: q
i
p
Maximum flow rate q
m /h
s
(<
1 h / day and
< 200 h / year)
Starting flow (typical)
l/h
°C
Temperature measuring
range
Differential temperature
K
range
Cut-off limit
K
Permissible temperature
°C
in flow sensor
m /h
Flow rate at
0.1 bar pressure loss
bar
Pressure loss at q
p
k
(flow rate at 1 bar
m /h
vs
pressure loss)
Update rates for tem-
perature.
sec.
sec.
power, flowrate,
sec.
energy and volume
Maximum permissible
bar
operating pressure
Overall length
mm
Nominal size
inch
Connecting thread
inch
m
Cable length for split
version
kg
Weight
Permissible ambient
°C
temperature range
Environmental class
Protection class
Power supply
AMTRON® E-30...
Power consumption of
M-Bus interface
®
AMTRON
E-30 Mounting and operating instructions
q
0.6
q
1.5
q
2.5
p
p
p
0.6
1.5
2.5
0.006
0.015
0.025
Class 2 acc. to EN 1434
1:100
1.2
3
5
1.5
2.5
3
5 ... 150, (-20 ... 150 with
antifreeze, uncalibrated)
3 ... 100 K
0.15 K
5 ... 90 °C
(transient: 110 °C)
0.5
1.2
1.7
0.15
0.17
0.21
1.53
3.65
5.45
2
4
16
16
110
110
130
R
"
R
"
R
G
B
G
B
G 1 B
approx. 0.3 m, or 1.2 m on
request
approx.
approx.
approx.
0.8
0.8
0.86
5 ... 55 °C
C acc. to. EN 1434
IP 54
... B5: battery 5+1 years
...B10: battery 10+1 years
...B5M: supply by M-Bus
or 24 VDC
max. 1.5 mA, acc. to EN 1434
corresponding to 1 M-Bus load
unit
Pulse inputs (...EE...)
Min. pulse length
Max. pulse frequency
Terminal voltage
Pulse output (...A...)
Pulse value:
Make time:
Bouncing time
Max. voltage
Max. current
22. Error messages
®
AMTRON
monitoring function. An error code is displayed
when an error occurs:
Error code
Err XYZW
Err 1010 *
Err 2010
Err 4010
"
Err 8010
Err 0084
*: The error "Err 1010" is usually due to a
temporary condition of the plant by which the
temperature on the hot side has dropped to at
least 3 K below that on the cold side.
Please contact our customer service depart-
ment for all other error messages.
> 125 ms
< 3 Hz
1 kWh
125 ms
none
28 V DC or AC
100 mA
E-30 has an automatic self-
Meaning
X:
Error with temperature sensors
Y:
Error with totalizer
Z:
Error in statistics
W: Error in flow meter sensor
Temperature sensors mounted the wrong
way round or the temperature on the cold
side is higher than the hot side
One or both temperature sensors is/are
short-circuited
Cable break at temperature sensor
on the cold side
Cable break at temperature sensor
on the warm side
Error in the flow sensor pulse transmitter
3 V
19