Hi Range; Lo Range; Setting The Alarm Setpoints; Hi Alarm - Teledyne 3290 Operating Instructions Manual

Percent Oxygen Analyzer
Note: The HI Range value MUST be set at a higher value than
the LO Range value.

4.3.1 HI Range

Setting the HI Range fullscale value defines the LEAST sensitive
analysis range to be used. To set the HI Range:
1. Press the
2. Immediately (within 5 seconds) press either the  or  button
to raise or lower the displayed value, as required, until the
display reads the desired fullscale percent value.

4.3.2 LO Range

Setting the LO Range fullscale value defines the MOST sensitive
range to be used. To set the LO Range:
1. Press the
2. Immediately (within 5 seconds) press either the  or  button
to raise or lower the displayed value, as required, until the
display reads the desired fullscale percent value.

4.4 Setting the Alarm Setpoints

The alarm setpoints can be adjusted over the full range of the
analyzer (0-25% oxygen content). They are set as a percent of oxygen
content, so that an alarm set to indicate 9.6 on the display will activate at
9.6% O on any O range.
2 2
Note: The HI Alarm setpoint MUST be set at a higher alarm
setpoint than the LO Alarm setpoint.

4.4.1 HI Alarm

Setting the HI Alarm sets the concentration ABOVE which the HI
Alarm will activate. To Set the HI Alarm:
1. Press the
SET HI ALARM
2. Immediately (within 5 seconds) press either the  or  button to
raise or lower the displayed value, as required, until the display
reads the desired percent concentration.
Teledyne Analytical Instruments
function button once.
SET HI RANGE
function button once.
SET LO RANGE
function button once.
Operation
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