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Operation
Self-Test
The Terranova® 752A will perform a self-test at power ON. Each step is initiated by a BEEP
sound in the following sequence:
1.
All display segments become illuminated for CHANNEL 1
2.
All LED indicators (except HV ON/OFF and HIGH VOLT INTERLOCK IS OPEN)
become illuminated for CHANNEL 1
3.
Steps 1 and 2 repeat for CHANNEL 2
4.
CHANNEL 1 CURRENT display reads DIP switch code (e.g. 0FC0)
See
Internal DIP Switch Setup
CHANNEL 1 PRESSURE display reads the firmware version (e.g. 1.82);
CHANNEL 2 CURRENT display reads RS-485 address (e.g. 5)
See
Changing the RS-485 Address
CHANNEL 2 PRESSURE display reads the model number (e.g. 752A)
The Terranova® 752A will enter Standby Mode if Self-Test is successful. In Standby Mode, the
HIGH VOLTAGE display will read OFF and the LED corresponding to the default or user-selected
pressure unit will become illuminated.
The control unit fan will automatically start at power ON.
An RS-485 address will be output regardless of selected communication standard.
Setup Mode
Terranova® 752A unit parameters for CHANNEL 1 or CHANNEL 2 can be set or modified by the
following six-step operation:
1.
Press the
SELECT
button to set or adjust the SET POINT pressure value. Use the
RAISE
or
LOWER
button to increase or decrease the pressure value shown on the
PRESSURE display. Pressure range is from 0.1 x 10
-9
to 1.0 x 10
-5
in the selected
units of pressure. Default value is OFF. PRESSURE display, respective pressure
unit LED, and SET POINT LED will illuminate during adjustment. See
Set Point
Operation
2.
Press the
SELECT
button a second time to adjust the maximum high voltage
supplied by the control unit. Use the
RAISE
or
LOWER
button to increase or
decrease the MAX VOLTAGE value shown on the HIGH VOLTAGE display. Voltage
range is from 3.50 kV to 7.00 kV in 0.5 kV steps. Default voltage is 7.50 kV. MAX
VOLTAGE LED will illuminate during adjustment.
3.
Press the
SELECT
button a third time to adjust the maximum current limit of the
control unit. Use the
RAISE
or
LOWER
button to increase or decrease the MAX
CURRENT value shown on the CURRENT display. Current range is from 1 mA to
50 mA. Default current is 10 mA. CURRENT display, respective current unit LED,
and MAX CURRENT LED will illuminate during adjustment.
