Communication
24/39
No-pulse duration (high)
≥
50 ms
Pulse value
0.01 litres/pulse, in steps of 10 000.00
litres/pulse,
in steps of 0.01 litres/pulse
Display and output
in m
3
, 7-digit;
acc. to parameter setting with or with-
out 1 decimal place
Polarity
yes, must be correct, if transmitter is of
type “open collector”
Electrical isolation
from calculator
yes
from the M-bus inputs
no
Output voltage
approx. 3.3 V
Internal resistance
approx. 1 M
Ω
Source current
approx. 3 µA
Pulse input closed (low)
Switching threshold low < 0.2 V
Resistance < 50 k
Ω
Pulse input open (high)
Switching threshold high: unconnected
collector
Resistance
≥
6 M
Ω
Connection
Strip-back length 5 mm
Connection capacity
rigid or flexible
0.25 ... 0.75 mm²
flexible with wire end ferrule
0.25 ... 0.75 mm²
Permissible cable length
max. 10 m
10.4 Analog module
The analog module converts the measured value from the meter to an analog
signal.
Power supply range
12 … 30 V AC
12 … 42 V AC
Power supply protection
< 24V
200 mA, slow blow
≥
24V
100 mA, slow blow
Max. current consumption
170 mA @ 12 Volt
Power consumption
max. 2 Watt
Max. output load
300 Ohm for current output, 2 kOhm
for voltage output (outputs are short
circuit proof)
Accuracy
≤
±1% of parameterized max. value
Max. length of connections
100 m
Outer diameter of connections
up to 1.5 mm²
