Getting Started 1
U1253B User’s and Service Guide 13
6 scrolls through the available
dual-combination displays (except when the
rotary switch is at the , or
position, or when the multimeter is in 1 ms Peak
Hold or Dynamic Recording mode)
[3]
.
exits Hold, Null, Dynamic Recording, 1 ms Peak
Hold, and dual display modes.
7 • enters the Frequency Test mode for
current or voltage measurements.
• Press to scroll through frequency (Hz),
pulse width (ms), and duty cycle (%)
functions.
• In duty cycle (%) and pulse width (ms) tests,
press to switch between positive and
negative edge trigger.
• When the rotary switch is at the position,
and the Frequency Counter function is
selected, pressing will cycle through
the frequency, pulse width, and duty cycle
measurements.
• If data logging is set as (manual data logging),
pressing for more than 1 second will log the
present reading into the memory. The display will return
to normal after 3 seconds. To manually log another
reading, press again for more than 1 second.
• If data logging is set as (automatic data
logging), pressing for more than 1 second will
enter the automatic data logging mode, and data is
logged at the interval defined in Setup mode
[1]
.
• Press for more than 1 second to exit data logging
mode.
Notes for keypad descriptions and functions:
1 See Ta b l e 4 - 1 on page 85 for details of available options.
2 When the rotary switch is at and the temperature measurement function is selected, pressing will not affect
any setting. When the rotary switch is at and the frequency counter function is selected, press to switch
between dividing the signal frequency by 1 or 100.
3 When the rotary switch is at and the temperature measurement function is selected, ETC (Environment
Temperature Compensation) is ON by default. Press to disable ETC; will appear on the display. For pulse
width and duty cycle measurements, press to switch between positive and negative edge trigger. When the
multimeter is in Peak or Dynamic Recording mode, press to restart the 1 ms Peak Hold or Dynamic Recording
mode.
Table 1-2 Keypad descriptions and functions (continued)
Button Function when pressed for less than 1 second Function when pressed for more than 1 second
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