Badger Meter ER-500 - Page 24

Trip SP 1
The trip parameter can be set for either High or Lo. When set to high, the open collector transistor stops conducting and sends
the output high when the setpoint is reached. The output will not go low again until the flow rate falls below the setpoint
minus the hysteresis value. When set to low, the open collector transistor starts conducting and sends the output low when
the setpoint is reached. The output will not go high again until the flow rate exceeds the setpoint plus the hysteresis value.
For example, if the set point is 10 gpm, the hysteresis is set to 2 gpm and the trip setpoint is set to High (see Figure 15). When
the flow goes above 10 gpm the OC transistor stops conducting and the output goes high. The output stays high until the
flow rate drops below 8 gpm which is the setpoint (10 gpm) minus the hysteresis (2 gpm).
Minimum
Flow
Maximum
Flow
Output ON
OFF (8 gpm) Setpoint (10 gpm)
Hysteresis
(2 gpm)
Output OFF
Figure 15: Setpoint example
At the TripSP1 prompt, press ENTER. The tripping condition setting is displayed. If the current setting is correct, press ENTER
to advance to the next parameter.
If the current setting requires a change, press RIGHT to advance to the alternate choice. Once the correct choice is displayed,
press ENTER to save the new trip condition and advance to the next parameter.
Clear Grand Total*
At the Clr G-T prompt, press ENTER. The flow monitor displays No. To clear the grand total press, UP or RIGHT to change from
No to Yes. Press ENTER to select Yes and advance to the next parameter. The totalizer can also be reset using a hardware reset
as shown in Figure 16.
JP1
JP2
JP3
Input Total Pulse Signal
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
Normally Open
Pushbutton
Switch
Figure 16: Hardware reset
Programming
DSY-PM-00028-EN-02Page 24 February 2017