APPENDIX A: APPLICATION NOTES PULSE INPUT APPLICATION
PQM POWER QUALITY METER – INSTRUCTION MANUAL A–23
Switch Inputs. Monitoring the input to one of the PQM Switch Inputs will reveal a pulsed
24VDC waveform, not a constant signal. Standard wiring practice should be adhered to
when making connections to the PQM Switch Inputs, i.e. avoiding long runs of cable along
current carrying conductors or any other source of EMI. An induced voltage on the Switch
Input can cause malfunction of the Switch Input.
Courtesy of NationalSwitchgear.com
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