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

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• Alarm Function (refer to Figure 18)

Option Description

Low alarm Sets the value where the relay will turn on in response to

decreasing measured value. For example, if the low alarm is

set for 1.0 and the measured value drops to 0.9, the relay

activates.

High alarm Sets the value where the relay will turn on in response to

increasing measured value. For example, if the high alarm is

set for 1.0 and the measured value increases to 1.1, the

relay activates.

Low

deadband

Sets the range where the relay remains on after the

measured value increases above the low alarm value. For

example, if the low alarm is set for 1.0 and the low

deadband is set for 0.5, the relay remains on between

1.0 and 1.5. Default is 5% of the range.

High

deadband

Sets the range where the relay remains on after the

measured value decreases below the high alarm value. For

example, if the high alarm is set for 4.0 and the high

deadband is set for 0.5, the relay remains on between

3.5 and 4.0. Default is 5% of the range.

Off delay Sets a time (0-300 seconds) to delay the relay from normally

turning off (Default: 0 seconds).

On delay Sets a delay time for the relay to turn on (Default:

0 seconds).

Figure 18 Alarm function

1 High alarm 5 ON delay

2 High deadband 6 OFF delay

3 Low deadband 7 Time (x-axis)

4 Low alarm 8 Source (y-axis)

30 (nglisK

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