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4. Operation Instructions
The H300 could take as long as ten minutes for the display to completely“settle” and display
the actual temperature or relative humidity level if the meter is exposed to two vastly different
environments. The sensors used to make the environmental measurements must have time to
acclimate to the test environment.
4-1 Unit Diagram
Fig. 1
4-1 LCD Display
4-2 Power button
4-3 Hold Button (ESC Button)
4-4 REC Button (Enter Button)
4-5 Function Button (Send Button)
4-6 SetButton (Logger Button)
4-7 Battery Compartment
4-8 Stand
4-9 RS232 Socket
4-10Probe Input Socket
4-11Probe Plug
4-12Probe Head (Humidity &Temp.)
4-13Probe Handle
4-14DC 9V Adapter Input Socket
4-15Battery Cover Screw
4-16Tripod Screw Mount
6