Measurement Computing eZ-Balance rev.9.0 - Manual (Page 29)

eZ-Balance 969391 Windows, Buttons, and Menus 3-11
For Tach Probes, you will need to enter the following information. The tachometer related information is
entered at the lower section of the input channels tab (see previous figure).
Rotation
Select the machine’s Rotation Direction, either CCW (counter-clockwise) or
CW (clockwise) on the pull down menu. The rotation direction is typically viewed from
the driver end. Rotation direction is used for data display correction.
Trig/Rev Enter the number of tach trigger pulses per shaft revolution. This number must be 1 for
all Balance Jobs. Phase can not be calculated if the number of trigger pulses is greater
than 1.
Trig Dir
Select the tach’s trigger pulse direction, either Negative or Positive. Typically this is the
direction of the tach signal’s leading edge. Trigger voltage and direction define the start
of a shaft rotation. A keyway will generate a Negative Tach pulse.
Trig Volt
The tach’s Trigger Voltage number must be less than the tach’s FSV. A tach pulse is
recognized when the tach signal exceeds the trigger voltage in the trigger direction
specified. Trigger voltage and direction define the start of a shaft rotation. Typical Tach
signals will generate at least a 1 V pulse.
Notes:
o Use a standard channel location convention for your Tach and Response channels.
Typically: Tach is channel 1 and Response channels are 2 through 8.
o If you aren’t getting a Tach Trigger, verify the Tach channel’s FSV and Trigger
Level Percentage and Direction.
Edit Menu >Configuration Window>Input Channel Tab > Edit
This pull-down menu is located at the upper left side of the Balance Configuration Window. It can only be
opened when the Input Channels tab is active. Menu items are as follows:
Set Defaults Sets instrument’s attributes to the default values, based on the defined instrument type.
Copy
Channel Copies the channel attributes of the channel where the cursor is currently residing.
Paste
Channel Pastes the copied channel attributes to the channel where the cursor is currently
residing.
Fill Down Copies the channel attributes of the channel where the cursor is currently residing and
copies them to all succeeding channels that are not marked “unused.”
Fill Up Copies the channel attributes of the channel where the cursor is currently residing and
copies them to all preceding channels that are not marked “unused.”