Operating
temperature
‐31 to 176
o
F (‐35 to 80
o
C)
Battery type
3.6V Lithium (1/2 AA) (SAFT LS14250, Tadiran TL‐5101
or equivalent)
Battery life
1 year (typ.) depending on logging rate, ambient
temperature, & use of
Alarm LEDs
Dimensions/Weight
4x1x.9” (101x25x23mm) / 6oz
(172g)
Battery Replacement
It is highly recommended that the battery be replaced every 12 months,
or prior to logging critical data.
The RHDL50 does not lose its stored readings when the battery weakens
or when the battery is replaced; the data logging process will however
be stopped and cannot be re‐started until the battery has been replaced
and the logged data has been downloaded to PC.
Use only 3.6V lithium batteries. Before replacing the battery, remove the
datalogger from the PC.
Follow diagrammatic steps 1 through 4 below.
NOTE: Leaving the RHDL50 plugged into the PC USB port longer than
necessary will cause some of the battery capacity to be lost.
