HF pulser (standard)
Max. voltage
24 V
Max. current
110 mA
Max. resistance
5.1 Ω
Max. switching frequency f
max
1000 Hz
HF pulser
Additional inductive sensor according to NAMUR
(at the turbine wheel, only with external power supply)
Supply voltage
8.2 VCC (internal resistance 1 kΩ)
Power consumption
(sensor covered) <1 mA
Power consumption
(sensor free) >2.1 mA
Max. switching frequency f
max
1500 Hz
Analog output (option)
4–20 mA output (only with external power supply)
Serial communication (option)
M-Bus or Modbus/RS485 (Modbus/RS485 only with
external power supply)
Protocol
M-Bus, Modbus RTU
Working range and pulse weighting data
DN
[mm] G-type
Q
min
[m
3
/h]
Q
max
[m
3
/h]
HF* [pulses/m
3
]
ext. pulser
HF* [pulses/m
3
]
int. pulser
L
[pulses/m
3
]
25
10
1.6
16
185,000–195,000
15,080–16,250
10
25
16
2.5
25
185,000–195,000
15,080–16,250
10
25
25
4
40
185,000–195,000
15,080–16,250
10
25
40
6.5
65
185,000–195,000
15,080–16,250
10
50
40
3.25
65
101,000–107,000
8,416–8,916
10
50
65
5
100
101,000–107,000
8,416–8,916
10
80
100
8
160
26,400–27,200
1,885–2,266
1
80
160
12.5
250
26,400–27,200
1,885–2,266
1
80
250
20
400
26,400–27,200
1,885–2,266
1
100
160
12.5
250
13,100–13,900
935–992
1
100
250
20
400
13,100–13,900
935–992
1
100
400
32
650
13,100–13,900
935–992
1
150
400
32
650
5,100–5,400
318–386
1
150
650
50
1000
5,100–5,400
318–386
1
150
1000
80
1600
5,100–5,400
318–386
1
* The precise number of pulses is dependent on the meter size and the calibrated
meter itself. The stated values are typical numbers. The exact values determined for
each meter during the calibration are stated on the type plate for the HF sensor.
At the request of the customer, the LF output can be programmed with 100 pulses/m
3
, 10
pulses/m
3
, 1 pulse/m
3
or 0.1 pulses/m
3.
8