Name: Hach sc200
Brand: Hach
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Procedures (see TABLE 3-1)

Procedure 1. Setting the Average Time Interval

The average, minimum and maximum gas concentration values are

gathered over the last time interval set by the Controller. This procedure

changes the time interval used for the average, minimum, and

maximum gas concentration value calculations of the Sensor.

To Change the Average Time Interval

1. Press the SEND button.

• The display prompts: SEND?

2. Press the AVG button.

• The display prompts: Set Avg Term +

3. Press the + or - button to scroll through the available list:

• Every 1 Hour

• Every 8 Hours

• Every 24 Hours.

4. When the desired time interval displays, aim the controller at the

sensor and press the ENTER button.

• The Monitor will show the time interval selected

for five seconds

• The Monitor time interval is now set to the desired selection.

• The Monitor displays the average, minimum, or maximum gas

concentration reading over the selected interval. This reading

is updated at the end of the selected average interval.

Procedure 2. Setting the Span Value

Monitors are shipped with TABLE 2-1 default span gas values. MSA

calibration cylinders are available for most of these pre-set span gas

concentrations; if an alternate span gas value is needed, the Monitor

span calibration value must be changed.

To Change the Calibration Span Gas Value of the Ultima Sensor

1. Press the SEND button.

• The display prompts: SEND?

2. Press the SPAN button.

• The display prompts: Span Gas Type +

3-3

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