Sigma 980 Operating And Maintenance Manual page 129

Note: You must log rainfall to use
set point sampling on a rainfall
condition; likewise, you must log
flow in order to implement set point
sampling on a flow rate of change. If
you forget, you are reminded when
the program begins.
Table 32 shows all possible sampling triggers and appropriate settings.
Table 32 Sampling Triggers
Sampling Trigger
Level
Flow
Flow Rate of Change
Temperature
pH
Rainfall
Analog Input Channel 1
Analog Input Channel 2
Analog Input Channel 3
Analog Input Channel 4
Analog Input Channel 5
Analog Input Channel 6
Analog Input Channel 7
To enable Set Point Sampling:
1. From the Main Menu, select
SAMPLING.
2. Highlight
SETPOINT SAMPLING
the Advanced Options Menu, then press the
3. Highlight the desired sampling trigger (see
soft key.
SELECT
4. Highlight either
SAMPLE ON HIGH CONDITION
SAMPLE ON LOW CONDITION.
5. Press the
CHANGE CHOICE
trigger for this condition.
6. Enter the desired high or low trigger point using the numeric keypad, then
press the soft key.
ACCEPT
7. Enter a Deadband value (see
programming for Flow Rate Of Change or Rainfall, enter a time interval
within which the flow or rainfall change must take place.
Sample on High Condition and Sample on Low Condition can be enabled at
the same time. There is no limit to the number of sampling triggers that can be
enabled at one time.
Appendix C
Settings
High and/or Low condition, deadband
High and/or Low condition, deadband
High condition within time interval
High and/or Low condition, deadband
High and/or Low condition, deadband
High condition within time interval
High and/or Low condition, deadband
High and/or Low condition, deadband
High and/or Low condition, deadband
High and/or Low condition, deadband
High and/or Low condition, deadband
High and/or Low condition, deadband
High and/or Low condition, deadband
OPTIONS> ADVANCED OPTIONS > SETPOINT
using the up and down arrow soft keys on
soft key.
SELECT
Table 32), then press the
or
soft key to enable or disable the sampling
Setting the Deadband on page
Programming Features
121) or, if
Page 127