DMTA-10084-01EN, Rev. 2, November 2018
Gates
87
7.12 Freeze
The freeze function holds, or freezes, the information on the screen at the moment it is
activated, and the EPOCH 6LT pulser/receiver becomes inactive. No further data is
acquired. A freeze ( ) flag appears, indicating that the function is active.
There are two ways to activate the freeze function: manual and automatic. Manual
freeze requires you select the Freeze button in the sidebar menu to activate the
function. Automatic freeze (AFreeze) enables you to automatically activate the freeze
function based on any triggered gate alarm.
When the display is frozen, you can use a variety of instrument functions, including
the following:
• Gate movement
• Gain
• Range and delay
• Rectification
• Data logging
When the freeze function is active, the following parameters cannot be
changed/accessed:
•Zero offset
• Range (cannot be increased)
• Pulser/receiver settings such as PRF, Energy, Mode, pulser waveform, and Filter
To activate the freeze function manually
On the sidebar menu, select and activate Freeze.
To activate the freeze function automatically
1. Select the Gate(1 or 2) icon, and then activate a gate (see “Activating the Gates” on
page 71).
2. On the selected gate, set an alarm (see “Gate Alarms” on page 82).
3. Set G(1 or 2) AFREEZE to On.
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