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AutoCheck
TM
mode, press the RANGE button momentarily 1 time can lock the
function-range it was in. The LCD annunciator “
” turns off. Range-lock can
speed up repetitive measurements. Press the button momentarily repeatedly to step
through the ranges. Press and hold the button for 1 second or more to resume
AutoCheck
TM
mode.
●As Hazardous-Alert: When making resistance measurements in AutoCheck
TM
mode, an unexpected display of voltage readings alerts you that the object under test is
being energized.
●Ghost-voltage buster: Ghost-voltages are unwanted stray signals coupled from
adjacent hard signals, which confuse common multimeter voltage measurements. Our
AutoCheck
TM
mode provides low (ramp-up) input impedance (approx. 1.6kΩ at low
voltage) to drain ghost voltages leaving mainly hard signal values on meter readings. It
is an invaluable feature for precise indication of hard signals, such as distinguishing
between hot and open wires (to ground) in electrical installation applications.
WARNING:
●AutoCheck
TM
mode input impedance increases abruptly from initial 1.6kΩ to a few
hundred kΩ’s on high voltage hard signals. “LoZ” displays on the LCD to remind the
users of being in such low impedance mode. Peak initial load current, while probing
directly to 600VAC for example, can be up to 530mA (600V x 1.414 / 1.6kΩ),
decreasing abruptly to approx. 4mA (600V x 1.414 / 210kΩ) within a fraction of a
second. Do not use AutoCheck
TM
mode on circuits that could be damaged by such low
input impedance. Instead, use slide-switch function selector common input
impedance voltage modes (Hi-Z of approx. 5MΩ) to minimize loading for such circuits.
Manual or Auto-ranging
When the function selected has more than one range, press the RANGE button
momentarily selects manual-ranging. The meter remains in the range it was in. The
LCD annunciator
turns off. Press the button momentarily again to step
through the ranges. Press and hold the button for 1 second or more to resume
auto-ranging.
Note:
*Manual-ranging feature is not available to 600
Ω
/
/ functions.
*To use Manual-ranging feature in AutoCheck
TM
mode, please see “Range-Lock
Feature” as explained in footnotes of AutoCheck
TM
mode section.
Customer Care Australia P: 13122 F: 1300 303 310 E: [email protected] W:cabac.com.au
A: Distribution Pl, Seven Hills NSW 2147
Customer Care New Zealand P: 0800 966 969 F: 0088 6969 E: [email protected] W: cabac.co.nz
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