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Operation
1. Once the voltage selector switch has been set, all HV wire(s) connected and iMODs mounted, turn the power
switch to the “ON” position. When the switch is turned “ON” the “Power ON” light will illuminate, letting the
user know power is supplied and the GPS-iMOD system is energized. Note: If a door switch, fan interlock
switch or air flow switch are in series with the power, the system may not turn on until all safeties are closed.
When power is supplied and the internal or optional remote mounted GPS-iDetect-P is sensing output, the
“Plasma On” light will illuminate.
2. The internal BAS Alarm Contacts will close proving system operation to the BMS.
3. Using a standard non-contact voltage meter, place it near the ion needles and prove there is ion output. An
optional ion meter can be purchased from GPS and actual ion output values can be measured. A permanent
mount ion detector with BAS interface may be provided as an option for 24/7 output monitoring.
Startup/Testing
1. Prior to energizing the unit: verify voltage selector switch matches incoming voltage and that the power
supply is properly grounded.
2. Once the entire system is mounted and wired, energize the system by turning the on/off switch to the “on”
position. The green power “ON” LED and “PLASMA ON” LED should illuminate. If the PLASMA ON does not
illuminate, confirm the red jumper is installed between C and NO on the GPS-iDetect-P terminal block, as
shown in FIGURE 20. If the optional iDetect-P is used, confirm it is on and operating.
3. Using a high voltage probe similar to a BK Precision Plus 28A, connect the probe to a multi-meter, connect
the ground clamp, and measure the AC high voltage (AC not DC) at the 6 inch modular stingers. Insert the tip
of the probe into one of the brush clusters and confirm the voltage is greater than 4,000 VAC. Please note,
most probes provide a 1000:1 step down. As an example, a display of 4.0 would be 4.0 x 1000 = 4,000 VAC.
The typical range of voltage is 4,000VAC to 7,000VAC, and the actual voltage will depend on the length and
quantity of bars attached.
Maintenance
The GPS-iMOD system has been designed for minimum maintenance. Below are the steps to ensure a long trouble-free
life:
1. On an annual basis, turn off power and use isopropyl alcohol and a nylon (wire free) brush to gently clean the
needles.
2. Use a soft cloth with isopropyl alcohol and wipe any debris off the GPS-iMOD outer bar and spaces between
needle housings.
3. Note: In high contaminant load environments, the GPS-iMOD will require more frequent cleaning.
