General Tools and Instruments LT2234C - Manual (Page 12)

Current consumption 45mADC for display;
35mADC for laser diode
Operating temperature range 32º to 122ºF (0º to 50ºC)
@ up to 80% relative
humidity
MAINTENANCE TIPS
The LT2234C requires no regular maintenance other than
light cleaning of the plastic housing and display with a soft,
dry cloth.
When the icon
appears on the display, it’s time to
change the instrument’s three “AAA” batteries because their
total potential has fallen below 4.0 volts. To do so, perform
the procedure detailed in the Setup Instructions section on
page 6. Remove the batteries whenever the tachometer is
expected to sit idle for an extended period of time (six months
or more).
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