17
R50 Blue Bar
5101171 Rev. L
5. OPERATION
Before switching on power supply, ensure that power supply is properly grounded and
static bar properly assembled and installed.
Startup for “N” Power Supplies
To operate the static eliminating equipment, apply line voltage to the power supply. For
power supply equipped with an ON/OFF switch, place the switch in the ON position.
True AC Function Indicators
1. BAR ON – High voltage is present on the static bar
2. BAR OFF – No high voltage on the static bar or cable
3. CLEAN BAR – Tells the machine operator when it is time to clean a dirty static bar.
Also has a remote dry contact output.
4. FAULT – The Arc Detection portion of the circuit turns the power supply off if the
high voltage is shorted to earth ground to alarm that there is a system failure and
protect the transformer. Also has a remote dry contact output.
5. SERVICE – Illuminates when an insulator covers the static bar emitter pins and ion
production has stopped. Also has a remote dry contact output.
6. BAR PERFORMANCE – Bar graph displaying the ionization output performance
of the static bar.
Calibration Instructions for the TrueAC Monitoring Power Supply
Calibrating the TrueAC Monitoring Power Supply is a simple process using the two
calibration pots located on the face of the power supply. The “Clean Bar” light is
preset at the factory to illuminate when the ionization output from the static bar is at
approximately 40% of maximum output potential, however, it can also be re-calibrated
in the field to either increase or decrease the sensitivity of the monitoring system,
depending on the users requirement. Normally the monitor will require calibration only
at the initial set-up. Recalibration may be required several days later as a result of changes
that may occur during the burn-in period experienced by new bars.
Calibration Procedures
Initial Set-up
Since the clean bar light is pre-set at the factory, the “Bar Monitor Set-Up” is the only
calibration requirement. Calibrate the light as follows:
