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@@ -26,17 +26,17 @@ Once the O-ESD is powered-up the splash screen should appear for 1 s at the LCD.
If an item has a numeric value selectable by the user, the numeric value can be changed by rotating the knob. Some items have multiple choices (selections) or submenus (sub-items) available and those are accessible by pressing the knob.
There are two modes of operation
-* contact discharge and
+* contact discharge and
* air discharge.
-The default mode is the contact discharge. The sharp conductive tip (electrode) is used for contact discharge and should be placed in the red socket at O-ESD output. For air discharge the rounded conductive tip (electrode) is used and it should be placed in the black socket. O-ESD is intended for use with only one conductive tip (electrode) inserted at a time and with the appropriate mode of operation selected.
+
The default mode is the contact discharge. The sharp conductive tip (electrode) is used for contact discharge and should be placed in the red socket at O-ESD output. For air discharge the rounded conductive tip (electrode) is used and it should be placed in the black socket. O-ESD is intended for use with only one conductive tip (electrode) inserted at a time and with the appropriate mode of operation selected.
Screen (menu) has four items.
(1) The first (top) item on LCD is the battery status. It displays the minimum of relative voltages of the two batteries. If the voltage of a battery drops below 3.5 V, the battery status displays that recharge is needed. Note that O-ESD will work even with very low battery voltage that may irreparably damage the batteries. Battery status has a submenu that presents extended information about each battery.
(2) The second item is the operation mode. It can be either contact or air as selected by the used.
(3) The third item is the ESD voltage level. The ESD voltage can be in the range from –12kV to 12kV in the case of contact discharge, or in the range from –15kV to 15kV in the case of air discharge. Note that the sign of the charge (polarity) is defined by the position of the cascade, i.e., it should be placed in the correct position in order that given polarity can be produced at the output.
(4) The forth item (at the bottom of LCD) is
-* the total number of pulses in the case of the contact discharge or
-* the hold time in seconds for air discharge (i.e., the time window in which the rounded tip is at the predefined voltage until the air discharge happens).
+(4.1) the total number of pulses in the case of the contact discharge or
+(4.2) the hold time in seconds for air discharge (i.e., the time window in which the rounded tip is at the predefined voltage until the air discharge happens).
Once the user has selected the mode of operation, ESD voltage level and number of pulses (or hold time), the discharge is initiated by pressing the fire button on the grip. During all the specified discharge(s) cycles, the information about discharge is displayed on LCD and the O-ESD main screen is inaccessible.
The sign (polarity) of the output is determined by the cascade connections to the shaper and the motherboard. The opposite sign is achieved by rotating the cascade for 180 degrees, i.e., the sign of the output is the one printed on the cascade end connected to the shaper. Before disconnecting and rotating the cascade, wait for 10 seconds after the last discharge so that the cascade discharges fully.
