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

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Sensor:

• Automatically recognized when connected to a transmitter

• When removed, causes a "Sensor Missing" fault; this can be

corrected by:

• Reconnecting a sensor to that position or

• Manually taking the sensor 'off-line' via:

• Ultima X Controller, by sending a sensor disable command

• ModBUS command write to a control register.

• A missing sensor or unused sensor position returns a gas value of

-99.9 in response to a ModBUS request for gas level value starting

at address base +207.

Alarm Status Screen

(FIGURE 2-3)

In the North American version of the Ultima X with X3 Technology, a

screen will appear when a combustible sensor crosses 50%, 60% or

90% of the full-scale range.

• This screen:

• will override all sensor data or fault screens and will clear when

all sensors are below 50% of scale.

• can be acknowledged by the operator; the:

• instrument will go back to normal display operation until the

sensor or any other sensor crosses 50%, 60% or 90% of

scale

• normal operation status screen will display again.

• can be acknowledged through the:

• Ultima X Controller

• Pushbutton or

• MODBUS interface.

NOTE: All IR inputs will be functional and appropriate display

screens will display for the received IR message.

2-4

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