Name: Hach sc200
Brand: Hach
Rating: 5 (1 reviews)

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12.After the 30 second countdown:

• The display alternates between "CAL" and a value.

(for example: 60 PPM for 0 to 100 ppm carbon monoxide).

This value is the actual reading of the gas concentration the

sensor is detecting. The engineering units (PPM, %, or %LEL)

are predetermined by the type of sensor installed and are

not changeable.

• Once the gas value is stable, the alternating display stops. If

the calibration is successful, the display will show END for

approximately two seconds. (FIGURE 2-7).

• No user adjustments are necessary.

• The display shows the span gas value while the span gas is

flowing to the unit. (For example, it may read 60 PPM or 25%

or 60% LEL).

13.Turn OFF gas flow by turning the knob on the flow controller.

• If the calibration output signal is enabled during calibration, it

will be held at the lockout value for two additional minutes after

END is displayed.

Figure 2-8. Span Gas Connection (Ultima unit shown)

Figure 2-7. Ultima X Series Unit Calibration End Display

2-15

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