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Digital Display Layout
Temperature
warning
Operation
Important:
Operational voltage range of the LT300 is:
50 V to 550 V .
Operational frequencies of the LT300 are:
16 Hz, 33 Hz, 50 Hz/60 Hz, 125 Hz and 400 Hz (400 V @ 16 Hz).
Auto-Power down:
The instrument will switch off automatically after 4 minutes of no
use. To switch on again press the TEST button or change range.
Test lead check:
Only use the specified test leads. The test leads supplied have an
internal resistance of 0.06 Ω. The LT300 allows for this so accurate
measurements are obtained at the probe tips.
Before each use of the instrument, inspect the test leads, prods and
crocodile clips to confirm that their condition is good, with no
damaged or broken insulation.
On test leads fitted with an outlet plug and flying leads, never
connect test probes, clips, pins or other objects to the 3 lead plugs
because of the danger of electrocution. These leads should only be
used by a competent person.
Supply Category rating:
The LT300 is designed for use on 300 V CAT IV Phase to Earth and
Fuse
Terminal
blown
voltage
>330 V
Noise
Low battery
symbol
warning
System Frequency
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