Bacharach 19-7038 Backlight ON/OFF, Using the Strap, Using the Probe, Interpreting the Display

4.3 Backlight ON/OFF

The LCD can be read in low-light areas by setting the front panel LIGHT switch to ON. The backlight stays on until turned off, or until the POWER switch is set to OFF.

4.4 Using the Strap

The instrument's elastic strap allows the unit to be either hand-held, or hung on nearby objects.

By sliding your hand between the instrument and its elastic strap, you can hold onto the Dioxor II with a minimum of effort. The instrument's front panel slide switches can then be actuated by your thumb for one- handed operation. Or, by releasing the metal clip at the bottom of the instrument's case, you can hang the instrument by its strap on nearby objects such as nails, sheet metal, or valve handles.

4.5 Using the Probe

A rigid stainless steel probe with handle, connected to a flexible hose with sample filter can be used to draw a gas sample into the instrument from the room, boilers, and other combustible furnaces.

Both hose and probe are detachable from the instrument when sam- pling without the probe, or when sampling with a different probe is desired.

Important: If condensation is observed within the hose, do not allow water level to build up to a point where it cuts off flow.

4.6 Interpreting the Display

Gas Display

The LCD shows SO2 levels in the range from 0 to 1999 ppm. The display on the right indicates an SO2 level of 025 ppm.

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