YSI 6000UPG User Manual

Page 71

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4-22

NOTE: You will see reference to TDG (total dissolved gas) in the Sensor setup menu. This is
for possible future upgrade and is not currently available for your 6000

UPG

.

During activation of certain sensors, you will be asked to select parameters associated with the
operation of the sensor or with calculations made from data acquired by the sensor. Sensors for
which additional choices are necessary are described in detail below.

After activation of the conductivity sensor, you will be asked to enter the constant associated with
the calculation of total dissolved solids (TDS), a parameter which is calculated from specific
conductance. The default value of this parameter is 0.65 and any change to the value will be shown
in parentheses when the prompt appears.

NOTE: If this parameter is disabled, any other parameter which is calculated using conductivity
will also be disabled.

After activation of the dissolved oxygen sensor, you will be asked to enter the DO Warm up time
associated with the Rapid Pulse Dissolved Oxygen Sensor. The default value of 40 seconds
provides adequate warm-up for most applications while maintaining good battery life in long-term
unattended sampling studies. While very long warm-up settings may marginally increase the
accuracy of the readings, their selection will reduce battery life.

After activation of the turbidity sensor, you will be asked to enter the number of wipes associated
with mechanical cleaning of the sensor optics prior to a reading being taken. Normally, the default
value of 1 is suitable, but in some applications where the potential for fouling is great, a greater
number of cleaning cycles may be necessary. Additional wiping of the probe face will reduce
battery life.

After entering the number of wipes, you will be prompted to enter the Number of Samples to
Average
. Entry of higher numbers such as 8 will result in greater smoothing of the data and a more
average view of the turbidity in your sample, but with slightly reduced response time. Entry of
lower numbers such as 1 will result in jumpier readings which reflect the momentary turbidity.

1.

Conductivity

2.

DO

A.

Turbidity

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