Step 14 - special output – Hach 900 MAX User Manual

Page 54

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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

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