Extech Instruments CG304 User Manual page 6

c. Probe Used
Select AUTO, Fe, or No Fe under PROBE USED in the OPTIONS Menu using the arrow buttons.
In the AUTO mode, the meter automatically activates the probe measurement method
(ferrous or non‐ferrous) based on the metal substrate that is being measured. When the
probe is placed on a magnetic substrate it will work in the magnetic induction mode. If the
probe is placed on a non‐ferrous metal it will work in the eddy current mode.
In the Ferrous (Fe) Mode the Magnetic induction measurement mode is activated.
In the Non‐Ferrous (No Fe) Mode the eddy current measurement mode is activated.
d. Units of measure selections
Select mm, µm or mils under UNIT SETTING in the OPTIONS Menu using the arrow buttons
(mm = millimeters; µm = micrometers; mils = mm*2.54/100)
e. Backlight
Select ON or OFF under BACKLIGHT in the OPTIONS Menu using the arrow buttons. If OFF is
selected the LCD backlighting will be completely disabled. If ON is selected, the user can
adjust the brightness of the backlight.
f. LCD Statistics
Select AVERAGE, MINIMUM, MAXIMUM, or SDEV (Standard Deviation) under LCD STATISTICS
in the OPTIONS Menu using the arrow buttons and the SELECT soft‐key. This selection
determines which statistic is shown as default on the LCD display.
g. Auto Power OFF
Select ENABLE or DISABLE under AUTO POWER OFF in the OPTIONS Menu using the arrow
buttons. When enabled, the meter automatically switches OFF after 10 minutes of inactivity.
When disabled, the meter will only switch OFF with a button press or when the battery
power is weak.
h. Bluetooth ON/OFF
Select ON or OFF under Bluetooth in the OPTIONS Menu using the arrow buttons. If OFF is
selected the Bluetooth will be completely disabled. When Bluetooth is ON data will be
automatically sent to PC, phone, or other Bluetooth receiving device.
When the first connection is being made the device may prompt for a PIN number. In this
case enter code 0000.
Note: Turn on Bluetooth only when necessary as the battery will drain more quickly with
Bluetooth powered ON.
i. Gray scale contrast
Press LEFT button to enter menu mode. Use arrow buttons to adjust the gray scale to desired
contrast.
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