ES278 Datasheet, PDF (19/25 Pages) Cyrustek corporation – 4000 Counts Manual DMM

ES278
4000 Counts Manual DMM
3.1. HOLD and BKOUT output Feature
HOLD mode makes the meter stop updating the LCD panel. This mode can be nested in most of
the special modes. Enabling HOLD function in automatic mode makes the meter switch to manual
mode, but the range remains the same. ES278 provides a backlight output feature. To activate
backlight output feature, press down the HOLD key and last for 2 seconds. The meter will enable
output from BKOUT.
3.2. KEY
See Section “Measurement Mode Switching” for the function of this pin.
3.3. Max/Min + HOLD
The meter displays the maximum or minimum value of the input in Max/Min mode. When MMX
key is pressed for the first time, the meter displays the maximum value. The meter displays the
minimum value, when it is pressed again. When MMX key is pressed for the third time, the meter
displays current value. The meter returns to normal operation if MMX is pressed and held for longer
than one second. Pressing HOLD in Max/Min mode makes the meter stop updating the maximum or
the minimum value.
Original state
(Automatic/manual)
1 push<1 sec 1 push>1 sec
“MAX” active
max value
1 push<1 sec
1 push>1 sec
“MIN” active
min value
Push HOLD
Push HOLD
“MAX”&”H” active
hold max value.
1 push<1 sec
“MIN”&”H” active
hold min value.
V 1.5
19
2015/12/11