TPI 709R Instruction Manual page 5

Scrolls through selectable fuels (see 3.2)
Switches between Gross and Nett Efficiency (see 4.1.4)
Switches between ºC and ºF (see 4.2.1)
Scrolls through mbar, kPa and inH
Moves up through the Stored Data Addresses (see 5, 6 & 7)
Zeroes pressure reading (see 4.3.1)
Moves down through the Stored Data Addresses (see 5, 6 & 7)
Scrolls through Flue Gas Analysis Function Screens (see 4.1)
Turns ch2 temperature ON/OFF (see 4.3.1)
Allows you to change the Date and Time (see 4.4)
Allows you to choose a Stored Data Address (see 5, 6 & 7)
Sends stored data to a separate infrared printer (see 7)
Allows you to view stored data on the display (see 6)
Stores readings to memory (see 5)
Moves you through the 4 Functions (see 4)
Turns Backlight ON and OFF (see 4)
Turns the instrument ON and OFF (see 3.1 & 8)
O (see 4.3.1)
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