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