Omega UWBT Series, Руководство пользователя

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Alarms & Offset:
The “Alarms & Offset” screen allows you to set the low/high alarm set point
values, deadband and sensor offset corrections. The images below show the
“Alarms & Offset” screen after the button is clicked for the thermocouple
and pH transmitters. The screen for RTD transmitters is similar to that of
thermocouple transmitters. The screen for pH transmitters is similar to that of
RH transmitters, the only difference is that the RH values are replaced by pH
values.
Figure 6-12. Thermocouple Alarms And Offset Screen
• High Alarm set point:
You can set the high alarm value to the highest measurable input of the
particular UWBT sensor sub-type. For example, you can set up to 2300°F for
K-type thermocouple.
• Low Alarm set point:
You can set the low alarm value to the lowest measurable input of the particular
sensor sub-type. For example, you can set the alarm as low as -148°F for K-type
thermocouple.
• Alarm Deadband:
Once the sensor reaches a high/low alarm state, the alarm stays active until the
reading goes below “high alarm value – deadband value” or above “low alarm
value + deadband value”. Alarm deadband is always a positive number. Below
are examples of deadband settings for the transmitter.
1. High alarm state - If you set the temperature deadband to 10°F and the high alarm
value to 250°F, the transmitter will be in alarm state (red LED blinks 2 times every
2 seconds) when the temperature measurement reaches 250°F or above. The
transmitter will stay in alarm state until the
Software Instructions (PC App)
6
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