A: No. The manual top contains the chopper reference. Operating without it will give false readings and may damage the sensor.
: Ground the plate first to clear any charge, then hold the device in the ionized airflow. The range for this mode is typically 0 to ±200V. Maintenance and Troubleshooting Simco-Ion FMX-004 Tutorial Jun 5, 2014 SIMCO Japan - FMX002 Fieldmeter simco fmx002 manual top