Omega CA450 User Manual page 21

Data hold:
Auto hold:
Peak hold:
) LIGHT key
Use this key to turn the backlight on and off. Press the key once to turn it on. Press it again
to turn it off.
Use this key to control the sleep function. During measurement or output, Hold down
LIGHT for 2 seconds or longer to put the CA0 in sleep mode. (While the CA0 is in
sleep mode, hold down the LIGHT key for 2 seconds or longer to clear sleep mode.)
(You cannot clear sleep mode immediately after the CA0 is put in sleep mode. Wait at
least 2 seconds after the CA0 is put in sleep mode before you clear it.)
6) RELΔ/% key
Use this key to display the measured values as relative values (you can display the
differences between values using numbers or percentages).
1: Difference display (RELΔ)
"Δ" appears on the display.
2: Percentage difference display (REL%)
"Δ" and "%" appear on the display.
Use this key during the zero adjustment of the resistance measurement function.
With the test leads shorted, press the REL key to execute zero adjustment.
7) MIN/MAX key
Use this key to display the minimum (MIN), maximum (MAX), and average (AVG) values
within the measurement period.
When you press the key, recording starts, and "MIN," "MAX," and "AVG" appear on the
display. (The AUTO OFF function is disabled.) When peak hold is enabled, press the REL
key to reset the peak value.
8) Hz key
When the function switch is turned to ~V, use this key to switch between AC voltage measurement and
frequency measurement.
Use this key in calibration mode to confirm the calibration value.
9) SHIFT key
If you press SHIFT while a measurement mode is selected, "Shift" appears on the display.
In this state, you can configure various settings by pressing the various keys.
SHIFT+ LIGHT key
SELECT key Switches from mV mode to SENSOR mode
While an output mode is selected, press SHIFT to switch between SOURCE and SIMULATE.
T he currently displayed measured values are held. "D•H" appears on
the display.
T he measured values are automatically held according to the
operation of the test leads. "A•H" appears on the display.
The peak values are held. "P•H" appears on the display.
SETUP mode
9