Hach FL1500, Руководство пользователя

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Alarms are available for the system and for the channels. The channel alarms are setpoint alarms for
the recorded measurements (channels), such as the pH, level and power supply voltage. The system
alarms are for sensor timeout errors, power issues or digital inputs (digital inputs are available on
advanced model only). The user can set a maximum of 32 alarms. Make sure to configure the data
logging before this task is started.
1. Push MENU .
2. Select Programming>Alarm Programming.
3. Add a channel alarm as follows:
a. Select Channel Alarms>Add New Alarm.
b. Select the channel, then push Next
Note: The port number where the sensor connects to the instrument shows in the sensor channel name.
For example, Velocity 2 is the velocity channel name for the sensor that connects to sensor port 2. An IO
number that follows a channel name identifies the analog inputs of the optional I/O module.
c. Select the type of alarm.
Option Description
Low/Low Sets the lowest alarm setpoint and the deadband for the lowest alarm setpoint.
Low Sets the low alarm setpoint and the deadband for the low alarm setpoint.
High Sets the high alarm setpoint and the deadband for the high alarm setpoint. Refer to
Figure 18 for an example of a high alarm setpoint.
High/High Sets the highest alarm setpoint and the deadband for the highest alarm setpoint.
Rate of Change Sets the alarm setpoint, deadband for the setpoint and the amount of time for the rate
of change (rain only).
d. Enter the value when the alarm starts (trigger value).
e. Enter the deadband value. Refer to Figure 18 .
4. Select an option, then push OK .
Note: More options show when the optional IO9004 module is connected to the IO9004 terminal port.
Option Description
Log Only Records the alarm in the alarm log.
Switch Log Interval Changes the data logging interval to the secondary logging interval during an active
alarm. Refer to
Configure data logging on page 33.
34 English