Getting Started
Before using
Make sure your TWL-1S is in good condition and within factory calibration.
Meter setup
‣
Insert 4 AAA batteries into the battery holder with proper orientation.
‣
Long press
PWOER
button to turn on TWL-1S.
‣
Place the meter on a tripod, preferably 1 m above the ground, for proper placement.
‣
Press
MODE
key to toggle among 7 modes.
‣
Press
TWL
key to calculate a TWL value.
Pager setup (optional )
2
Insert 1 AA battery into the battery holder with proper orientation. The pager beeps once when it is
ready.
Please contact sales representative for wireless paging function.
2
6
NOTE
: Expose the meter to the environment at least 10 min to reach equilibrium for any
significant changes in temperature and humidity (e.g. indoor to outdoor and vice versa).
