Keypad Description - Extech Instruments GX900 User Manual

KEYPAD DESCRIPTION
The meter's 12 push‐button keypad activates features, augments functions selected by
the rotary switch, and allows the navigation of the displayed menu structure
F1‐F2‐F3‐F4 keys
Selects sub‐functions related to the currently selected primary
mode set by the rotary switch
Cursor buttons
Use the cursor buttons to selected items in a menu tree, adjust
display contrast, scroll information, and perform data entry
HOLD button
Freezes the displayed reading and, if desired, saves the screen shot. The HOLD button
also accesses the AUTO HOLD feature which is detailed in this Instruction Manual
MAX/MIN button
Starts and stops the Maximum (MAX) and Minimum (MIN) reading memory
OK button
Confirms data entry
Rotary Switch
Selects the primary measurement function; for each, the meter presents a standard
display for that function (range, measurement units, and modifiers). See table below:
V~
V–
mV
Hz %
RPM Counter
A
mA
uA
INFO button
Opens the information window
Backlight button
Selects backlight intensity from low to high. Also used to return from an auto‐power
off condition
AC voltage measurements
DC and AC+DC voltage measurements
DC(AC) millivolts, ac + dc millivolt,
Resistance, Diode test, capacitance, continuity measurements
Frequency and duty cycle measurements
RPM, Counter measurements
AC, dc and ac + dc amps measurements
AC, dc and ac + dc milliamps measurements
AC, dc and ac + dc microampere measurements up to 5,000 μA
Temperature, Clamp Current measurements
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Extech Instruments
GX900-EU-EN V1.6 4/14