Loma IQ3, User Manual

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Operating Instructions
3.
Use the Navigation Keys to select the required option value and then
press the OK / Enter Key to confirm the selection.
4. Repeat step 2 and 3 until you have selected and confirmed values for each option.
The Balance Setup menu contains the following options:
■
Frequency
The IQ
3
has seventy (70) different operating frequencies ranging from 31kHz up to 882kHz.
Each of the available frequencies can be selected by scrolling through the list.
Note that the frequency selected in this menu is independent of the frequency for the
currently running product.
When a frequency is selected from the list, the current setting for the receiver P and Q
channel potentiometer positions together with the balance can be viewed.
When the menu is exited, the detector will restore the current running products' operating
frequency.
■
Pot position
The potentiometer positions for the P and Q channels of the selected operating frequency are
displayed. The potentiometers are used to select the signal size that is injected into each
channel to balance them out.
These values are automatically set for the selected frequency by the software when the
AutoBalance feature is used.
The potentiometer positions can be manually adjusted within this menu, but this is not
recommended.
■
Balance setpoint
The target value for the balance between the P and Q channels is displayed. The default
value is 100.
■
Balance
The measured balance between the P and Q channels on the receiver board is displayed as a
read-only value.
When the detector has been configured correctly, the measured balance will generally be
lower than the balance setpoint.
If in doubt contact your local Loma service centre for assistance.
■
Auto configure
Enabling this option starts the AutoBalance process for all operating frequencies. The process
commences by resetting the potentiometer positions for the P and Q channels for each
frequency to 50.
■
Balance reset
Selecting this option resets the potentiometer positions for the P and Q channels for each
frequency to 50. This will often be done prior to manually balancing the head (usually at
31kHz). Remember to run the Auto configure process afterwards.
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