D. INSTRUMENT OVERVIEW
1.
Input connection for K-Type probes. Connector is
recessed and polarized ( and -). Ensure the K-
Type probe is connected properly (see below).
2.
SP341 status LED indicator.
Orange and blinking = Bluetooth not connected
Green and blinking = Bluetooth connected
Blinking Red with either of the above = Low battery
3.
Power Key. Press and hold to turn the instrument on.
Press and hold to turn the instrument off.
4.
Built-in magnet. Attach to
metal surfaces for hands free
operation. Ensure surface is
not hot.
5.
Serial number location. Last
three digits are the product
identification number and
marked in bold. Use this num-
ber to distinguish between
models when several SP341’s
are connected to a phone or
tablet.
6.
Screw to open battery com-
partment. Turn the screw
counter clockwise until it is
just above the compartment
door. Lift on the screw to open
the compartment.
K-Type probe connectors are polarized
and made so one prong is wider than the
other. This ensures connection with the
proper polarity is made. They are marked
+ and - just like the SP341 connector.
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