Badger Meter Vortex Meters - Manual (Page 11)

Form No. 09-VRX-UM-00007 9
FIGURE 6
+8-28 VDC
Gnd
Output
Programming
+8-28 VDC
Gnd
Output
8 to 28 VDC
Output
POWER
SUPPLY
8-28 VDC
4-20 mA
Load
RECEIVER
The receiving equipment must accept industry standard “true two-wire” or “loop powered” 4-20 mA pro-
cess transmitter inputs. This means that the receiving equipment, such as a recorder or controller, must
supply power for the transmitter along the twisted wire pair. If the receiving equipment does not provide
power, a separate power supply, typically 24 VDC and at least 30 mA, must be used, as shown in figure 6.
There are many brands of receivers which provide 24 VDC for this purpose.
Several receivers may be connected in a series as shown in figure 7, but only one should provide power,
and all should have isolated inputs. The voltage provided by the receiver must be within the limits shown
in the Supply Voltage chart (see figure 8).
+8-28 VDC
Gnd
Output
Programming
+8-28 VDC
Gnd
Output
8 to 28 VDC
Output
4-20 mA
Additional Loads
RECEIVER/POWER SUPPLY
RECEIVER RECEIVER
FIGURE 7