Hach 900 MAX Instrument Manual page 53

8990startup.fm
13-C. Select either Start on Setpoint or Stop on Setpoint by pressing
. Press
CHANGE CHOICE
• Start on Setpoint will start a program when the setpoint condition is
met. The program continues to run even if the condition falls back
within the setpoint limits.
• Stop On Setpoint halts the program if the setpoint condition falls back
within the setpoint limits and starts again if the limits are exceeded.
13-D. Highlight the desired channel to trigger from, then press
13-E. Press either
HIGH CONDITION
11:00 AM 21 - APR - 01
SETPOINT CONDITION:
Note: Flow Rate of Change and Rainfall are signals that only increase and never
decrease in value, therefore these signals do not require Low Condition.
The external control signal must be configured on the external equipment for
the desired setpoint. An external control device must provide a dry contact
and can include a float switch, push-button, external flow meter, etc. For
interface connections refer to
13-F. Enable or Disable the trigger point using the
13-G. Select the desired high or low trigger point using the numeric keypad.
Press . Refer to
ACCEPT
11:00 AM 21 - APR - 01
ACCEPT SETPOINT SAMPLING:
HIGH TRIGGER POINT:
CANCEL
(USE NUMERIC KEYPAD)
13-H. Enter the Deadband value if required or, if programming Flow Rate Of
Change or Rainfall, enter a time interval that the flow or rainfall change
must take place (refer to
11:00 AM 21 - APR - 01
ACCEPT SETPOINT SAMPLING
DEADBAND:
CANCEL
(USE NUMERIC KEYPAD)
to continue.
ACCEPT
or
LOW CONDITION
section 2.10 on page 29.
CHANGE CHOICE
Table 3.
00000 in.
section 6.4 on page 87).
0.000
Section 3
.
SELECT
.
SETPOINT SAMPLING
HIGH
CONDITION
LOW
CONDITION
key.
SETPOINT SAMPLING
CLEAR
ENTRY
SETPOINT SAMPLING
CLEAR
ENTRY
Page 51
Advanced Sampling