Model HF-15B High Frequency Spark Tester
HF-15B Instruction Manual – Page 30
Set in kV. If the actual voltage drops below this set point, any
“HVL” output will change state.
Note – It is recommended that “HVOF” and “HVON” differ by at least .2kV and
that “HVOF” never be set higher than “HVON”.
High Voltage Watchdog (WDL)
The WDL output will change state when the actual voltage being produced
(displayed) is between the set “VWDL” and “VWDH” limit values.
– Voltage Watchdog Low Limit. Set in kV.
– Voltage Watchdog High Limit. Set in kV.
Note – It is recommended that “VWDL” and “VWDH” differ by at least 1kV and
that “VWDL” is never set above the “VWDH” limit value.
For more information on the Voltage Watchdog, see the “New Features” section of
this manual.
Electrode Voltage Percent Based Watchdog (EVP)
The EVP output will change state when the electrode voltage monitor is within
plus or minus the configured “EVWP” percentage of the set voltage. Example:
Set point is 10kV, “EVWP” is 10%. If the electrode voltage is between 9kV and
11kV the output will signal.
– Electrode Voltage Watchdog Percent (EVWP)
Set as a percentage.
For more information on the Voltage Watchdog, see the “New Features” section of
this manual.
Actual Voltage Percent Based Watchdog (AVP)
This output will change state when the main output voltage monitor is within plus or
minus the configured “AVWP” percentage of the set voltage. Example: Set point is 10kV,
“AVWP” is 10%. If the actual voltage is between 9kV and 11kV the output will be high.
Actual Voltage Watchdog Percent (AVWP)
Set as a percentage.
For more information on the Voltage Watchdog or Actual Voltage vs Electrode
Voltage, see the “Definition of Terms” section of this manual.
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