Badger Meter B3000 - Manual (Page 22)

Compact Digital Flow Monitor, Model B3000
Page 22 March 2014
Totalizer Pulse Output PulsOut
Basic Function
The PulsOut parameter can be either enabled or disabled When enabled, this output generates a fixed width 30 mS duration,
pulse every time the least significant digit of the totalizer increments The amplitude of the pulse is dependent on the voltage
level of the supply connected to the pulse output and is limited to a maximum 28V DC
The B3000 provides two types of totalizer pulses The basic open drain FET output,
Figure 19 and Figure 20 , provides a ground
referenced output pulse that swings between about 0 7V DC and V
CC
JP1
JP2
JP3
P1
Freq. In
4-20mA
Iso Total Pluse
TR_B
TR_A
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
–
+
–
+
–
Total Reset
Total Pluse
Signal Gnd
Mag
Pulse
Iso
OC
Low
High
Input
Total P
ulse
Sig
nal
TB1
Open Drain FET
Total Pulse Output
2.2 …10k
Pullup
Resistor
V
CC
Internal
100 mA
Maximum
Freq. In
4-20mA
Iso Total Pluse
+
–
+
–
+
–
Total Reset
OC Total Pluse
Signal Gnd
JP3
Total Pulse
ISO OC
JP1
Input
Mag Pulse
TB2
Open Drain FET
Total Pulse Output
2.2…10k
Pullup
Resistor
V
CC
Internal
100 mA
Maximum
Figure 19: Open drain connections (NEMA 4X) Figure 20: Open drain connections (Ex-Proof)
The isolated pulse output (ISO), Figure 21 and Figure 22 , are again an open collector output with the emitter of the transistor
connected to the negative output terminal and is not referenced to ground This output is optically isolated from the input
signal for systems that require a totally isolated output pulse
JP1
JP2
JP3
Input
Total P
ulse
Sig
nal
P1
JP1
JP2
JP3
Input
Total P
ulse
Sig
nal
P1
Freq. In
4-20mA
Iso Total Pluse
TR_B
TR_A
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
–
+
–
+
–
Total Reset
OC Total Pluse
Signal Gnd
TB1
Mag
Pulse
Iso
OC
Low
High
Isolated Output
Total Pulse
Internal
–V
2.2…10k
Pullup
Resistor
V
CC
100 mA
Maximum
Freq. In
4-20mA
Iso Total Pluse
+
–
+
–
+
–
Total Reset
OC Total Pluse
Signal Gnd
JP3
Total Pulse
ISO OC
JP1
Input
Mag Pulse
TB2
Internal
Isolated Output
Total Pulse
–V
2.2…10k
Pullup
Resistor
V
CC
100 mA
Maximum
Figure 21: Opto-isolated open collector connections (NEMA 4X) Figure 22: Opto-isolated open collector connections (Ex-Proof)
Both outputs have a maximum current capacity of 100 mA and require a pullup resistor The value of the pullup resistor is
dependent on the supply voltage and the maximum current required by the load device