Step 14 - special output – Hach 900 MAX User Manual
Page 54

Page 52
Advanced Sampling
8990startup.fm
Section 3
13-I. Enter a delay when input is active. This delay will keep the program
from starting until the end of the delay period. Using the numeric
keypad, enter the delay in minutes and/or hours. Press
ACCEPT
.
Step 14 - Special Output
The Special Output is a +12 V dc signal that appears on Pin E of the Auxiliary
Receptacle (refer to
section 2.10 on page 29
).
14-A. Highlight Special Output using the
UP
and
DOWN
keys on the Advanced
Sampling Menu. Press
SELECT
to continue.
14-B. Enable or Disable Special Outputs using the
CHANGE CHOICE
key.
Press
SELECT
to continue.
14-C. If enabled, select After Each Sample, Only When Pumping, or From
Rinse to Purge.
11:00 AM 21 - APR - 01
SETPOINT SAMPLING
ACCEPT
DELAY WHEN INPUT
BECOMES ACTIVE:
CANCEL
(hrs:min)
CLEAR
ENTRY
(USE NUMERIC KEYPAD)
Table 3 Sampling Triggers and Settings
Channel
Sampling Trigger
Settings
1
Level
High and/or Low Condition, Deadband
2
Flow
High and/or Low Condition, Deadband
3
Flow Rate of Change
High Condition within Time Interval
4
pH or ORP
High and/or Low Condition, Deadband
5
Process Temperature
High and/or Low Condition, Deadband
6
Rainfall
High Condition within Timed Interval
7
Analog Input Channel 1
High and/or Low Condition, Deadband
8
Analog Input Channel 2
High and/or Low Condition, Deadband
9
Analog Input Channel 3
High and/or Low Condition, Deadband
10
Analog Input Channel 4 or DO
High and/or Low Condition, Deadband
11
Analog Input Channel 5 or DO Temperature
High and/or Low Condition, Deadband
12
Analog Input Channel 6 or Conductivity
High and/or Low Condition, Deadband
13
Analog Input Channel 7 or Conductivity Temperature
High and/or Low Condition, Deadband
14
External Control
Configured in External Equipment
11:00 AM 21 - APR - 01
ADVANCED SAMPLING
SELECT
PGM CMPLT OUTPUT
SETPOINT SAMPLING
SPECIAL OUTPUTS
RETURN
START/STOP TIMES
STORM WATER