Troxler EGauge Combo 4540 - Page 45

Model 4540
3–11
To change the count time, press 1 at the Setup menu. The
gauge displays:
Select the desired count time using the corresponding number
key. The gauge sets the new count time and returns to the Setup
menu.
NOTE:
The active selection is noted by the asterisk.
All count times may be used for depth 2 through 8 inches. For
depths 9,10,11, and 12, 3- and 4-minute count times may be
used. Due to the low source activity these count times must be
used to achieve reliable results. The gauge sets the new count
time and returns to the Setup menu
Setting the Background Count Time
The background count time defines how long the gauge
measures the background radiation. There are four options
provided for background time. Background radiation affects
readings; a new background count is necessary when
background environment or testing material changes.
To change the background count time, Press 2 at the Setup
menu. The gauge displays:
A one-minute background count is the default setting and the
recommended setting.
1. 1 min *
2. 2 min
3. 3 min
4. 4 min
1. 1 min
2. 2 min *
3. 3 min
4. 4 min
5. 30 sec Quick Rdg