9.2.2
Connecting to Higher Voltage Turbine Meters
Counter inputs 1 and 2 inputs can also be configured for use with a turbine meter featuring an
integrated or standalone amplifier. In this configuration, the SCADAPack’s internal amplifiers must
be bypassed.
For Counter 1:
5.
Install jumper J11 in the ‘Ext Position’.
6.
Remove jumpers J9 from the ‘See J11’ position and install on the other two pins.
For Counter 2
1.
Install jumper J12 in the ‘Ext Position’.
2.
Remove jumpers J10 from the ‘See J12’ position and install on the other two pins.
Refer to the figure below for an illustration.
J9
J11
Counter 1 input
Internal 1000
ohms connected
to Input Voltage
J10
J12
Counter 2 input
Internal 1000
ohms connected
to Input Voltage
12V DC
SCADAPack 350
Ext. Amplifier
Ext. Amplifier
See J11
See J12
Figure 10: Setting Counter Input 1 and 2 for Turbine Meters with amplified signals
Your standalone amplifier may have a specific current requirement as specified by the manufacturer.
As shown in the figure above, the SCADAPack 350 includes a 1000-ohm resistor from the counter
input to the DC input power source, when the jumpers J11 and J12 are installed in the ‘Ext
Amplifier’ position, as described above. The above configuration is the recommended wiring for a
Halliburton Low Power Pre-Amp, when the SCADAPack 350 is
powered from 12V
.
SCADAPack 350 Hardware Manual
February 14, 2007
27