Pulse Output Connections - GE PanaFlow MV80 User Manual

Chapter 2. Installation

2.5.3 Pulse Output Connections

The pulse output is used for a remote counter. When the preset volume or mass, as defined in the totalizer settings (see
"The Totalizer #1 Menu" on page 60) has passed through the meter, the output provides a 50 millisecond square pulse.
The pulse output requires a separate 5 to 36 VDC power supply connected to the normally-open, single-pole pulse
output optical relay (see Figure 22 or Figure 23 below). The relay has a nominal 200 volt/160 ohm rating (i.e., it has a
nominal on-resistance of 160 ohms, and the largest voltage it can withstand across the output terminals is 200 volts).
However, there are current and power specifications that must be observed. The relay can conduct a current up to
40 mA and it can dissipate up to 320 mW of power. The relay output is isolated from the meter electronics and power
supply.
Pulse +
Pulse –
DC Power
DC Common
Figure 23: Non-Isolated Pulse Output Using External Power Supply
34
+V
Figure 22: Isolated Pulse Output Using External Power Supply
+ Pwr Bklght
– Pwr Bklght
Pulse voltage = +V
Select resistor so that current through pulse < 40mA
R current limit 10K
Pulse voltage = +V
Select resistor so that current
through pulse < 40mA
R current limit 10K
Pulse +
Pulse –
PanaFlow™ MV80 & MV82 User's Manual